{"id":34331,"date":"2025-04-29T10:37:45","date_gmt":"2025-04-29T02:37:45","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/34331.html"},"modified":"2025-04-29T10:37:45","modified_gmt":"2025-04-29T02:37:45","slug":"%e3%80%90%e7%bd%91%e7%bb%9c%e5%8e%9f%e7%90%86%e3%80%91-%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e5%a5%97%e6%8e%a5%e5%ad%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/34331.html","title":{"rendered":"\u3010\u7f51\u7edc\u539f\u7406\u3011 \u7f51\u7edc\u7f16\u7a0b\u5957\u63a5\u5b57"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u4e00\u3001\u7f51\u7edc\u7f16\u7a0b\u57fa\u7840<\/li>\n<li>\n<ul>\n<li>1. \u4e3a\u4ec0\u4e48\u9700\u8981\u7f51\u7edc\u7f16\u7a0b&#xff1f;<\/li>\n<li>2. \u4ec0\u4e48\u662f\u7f51\u7edc\u7f16\u7a0b<\/li>\n<li>3 .\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u57fa\u672c\u6982\u5ff5<\/li>\n<li>\n<ul>\n<li>\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef<\/li>\n<li>\u8bf7\u6c42\u548c\u54cd\u5e94<\/li>\n<li>\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef<\/li>\n<\/ul>\n<\/li>\n<li>4. \u5e38\u89c1\u7684\u5ba2\u6237\u7aef\u670d\u52a1\u7aef\u6a21\u578b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001Socket\u5957\u63a5\u5b57<\/li>\n<li>\n<ul>\n<li>1. \u6982\u5ff5<\/li>\n<li>2.\u5206\u7c7b<\/li>\n<li>3. Java\u6570\u636e\u62a5\u5957\u63a5\u5b57\u901a\u4fe1\u6a21\u578b<\/li>\n<li>4.Java\u6d41\u5957\u63a5\u5b57\u901a\u4fe1\u6a21\u578b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001UDP\u6570\u636e\u62a5\u5957\u63a5\u5b57\u7f16\u7a0b<\/li>\n<li>\n<ul>\n<li>1. DatagramSocket API<\/li>\n<li>2 .DatagramPacket API<\/li>\n<li>3. InetSocketAddress API<\/li>\n<li>4. \u5177\u4f53\u5b9e\u4f8b<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001TCP\u6d41\u5957\u63a5\u5b57\u7f16\u7a0b<\/li>\n<li>\n<ul>\n<li>1. ServerSocket API<\/li>\n<li>2. socket API<\/li>\n<li>3. TCP\u4e2d\u7684\u957f\u77ed\u8fde\u63a5<\/li>\n<li>4. \u5177\u4f53\u5b9e\u4f8b<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94 \u3001 \u534f\u8bae<\/li>\n<li>\n<ul>\n<li>1. \u56de\u987e\u5e76\u7406\u89e3\u4e3a\u4ec0\u4e48\u9700\u8981\u534f\u8bae<\/li>\n<li>2. \u5c01\u88c5\/\u5206\u7528 vs \u5e8f\u5217\u5316\/\u53cd\u5e8f\u5217\u5316<\/li>\n<\/ul>\n<\/li>\n<li>\u7ed3\u8bed<\/li>\n<\/ul>\n<hr \/>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023737-68103b7109f3e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u4e00\u3001\u7f51\u7edc\u7f16\u7a0b\u57fa\u7840<\/h2>\n<h3>1. \u4e3a\u4ec0\u4e48\u9700\u8981\u7f51\u7edc\u7f16\u7a0b&#xff1f;<\/h3>\n<p>\u7b54&#xff1a; \u4e30\u5bcc\u7684\u7f51\u7edc\u8d44\u6e90<\/p>\n<p>\u7528\u6237\u5728\u6d4f\u89c8\u5668\u4e2d&#xff0c;\u6253\u5f00\u5728\u7ebf\u89c6\u9891\u7f51\u7ad9&#xff0c;\u5982\u4f18\u9177\u770b\u89c6\u9891&#xff0c;\u5b9e\u8d28\u662f\u901a\u8fc7\u7f51\u7edc&#xff0c;\u83b7\u53d6\u5230\u7f51\u7edc\u4e0a\u7684\u4e00\u4e2a\u89c6\u9891\u8d44\u6e90\u3002<\/p>\n<p>\u4e0e\u672c\u5730\u6253\u5f00\u89c6\u9891\u6587\u4ef6\u7c7b\u4f3c&#xff0c;\u53ea\u662f\u89c6\u9891\u6587\u4ef6\u8fd9\u4e2a\u8d44\u6e90\u7684\u6765\u6e90\u662f\u7f51\u7edc\u3002 \u76f8\u6bd4\u672c\u5730\u8d44\u6e90\u6765\u8bf4&#xff0c;\u7f51\u7edc\u63d0\u4f9b\u4e86\u66f4\u4e3a\u4e30\u5bcc\u7684\u7f51\u7edc\u8d44\u6e90&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023740-68103b745c5f3.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u6240\u8c13\u7684\u7f51\u7edc\u8d44\u6e90&#xff0c;\u5176\u5b9e\u5c31\u662f\u5728\u7f51\u7edc\u4e2d\u53ef\u4ee5\u83b7\u53d6\u7684\u5404\u79cd\u6570\u636e\u8d44\u6e90\u3002\u800c\u6240\u6709\u7684\u7f51\u7edc\u8d44\u6e90&#xff0c;\u90fd\u662f\u901a\u8fc7\u7f51\u7edc\u7f16\u7a0b\u6765\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u7684\u3002<\/p>\n<h3>2. \u4ec0\u4e48\u662f\u7f51\u7edc\u7f16\u7a0b<\/h3>\n<p>\u7f51\u7edc\u7f16\u7a0b&#xff0c;\u6307\u7f51\u7edc\u4e0a\u7684\u4e3b\u673a&#xff0c;\u901a\u8fc7\u4e0d\u540c\u7684\u8fdb\u7a0b&#xff0c;\u4ee5\u7f16\u7a0b\u7684\u65b9\u5f0f\u5b9e\u73b0\u7f51\u7edc\u901a\u4fe1&#xff08;\u6216\u79f0\u4e3a\u7f51\u7edc\u6570\u636e\u4f20\u8f93&#xff09; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023740-68103b7487ce6.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u5f53\u7136&#xff0c;\u6211\u4eec\u53ea\u8981\u6ee1\u8db3\u8fdb\u7a0b\u4e0d\u540c\u5c31\u884c&#xff1b;\u6240\u4ee5\u5373\u4fbf\u662f\u540c\u4e00\u4e2a\u4e3b\u673a&#xff0c;\u53ea\u8981\u662f\u4e0d\u540c\u8fdb\u7a0b&#xff0c;\u57fa\u4e8e\u7f51\u7edc\u6765\u4f20\u8f93\u6570\u636e&#xff0c;\u4e5f\u5c5e\u4e8e\u7f51\u7edc\u7f16\u7a0b\u3002\u7279\u6b8a\u7684&#xff0c;\u5bf9\u4e8e\u5f00\u53d1\u6765\u8bf4&#xff0c;\u5728\u6761\u4ef6\u6709\u9650\u7684\u60c5\u51b5\u4e0b&#xff0c;\u4e00\u822c\u4e5f\u90fd\u662f\u5728\u4e00\u4e2a\u4e3b\u673a\u4e2d\u8fd0\u884c\u591a\u4e2a\u8fdb\u7a0b\u6765\u5b8c\u6210\u7f51\u7edc\u7f16\u7a0b\u3002\u4f46\u662f&#xff0c;\u6211\u4eec\u4e00\u5b9a\u8981\u660e\u786e&#xff0c;\u6211\u4eec\u7684\u76ee\u7684\u662f\u63d0\u4f9b\u7f51\u7edc\u4e0a\u4e0d\u540c\u4e3b\u673a&#xff0c;\u57fa\u4e8e\u7f51\u7edc\u6765\u4f20\u8f93\u6570\u636e\u8d44\u6e90&#xff1a;<\/p>\n<p>\u8fdb\u7a0bA&#xff1a;\u7f16\u7a0b\u6765\u83b7\u53d6\u7f51\u7edc\u8d44\u6e90 \u8fdb\u7a0bB&#xff1a;\u7f16\u7a0b\u6765\u63d0\u4f9b\u7f51\u7edc\u8d44\u6e90<\/p>\n<h3>3 .\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u57fa\u672c\u6982\u5ff5<\/h3>\n<h4>\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef<\/h4>\n<p>\u5728\u4e00\u6b21\u7f51\u7edc\u6570\u636e\u4f20\u8f93\u65f6&#xff1a; \u53d1\u9001\u7aef&#xff1a;\u6570\u636e\u7684\u53d1\u9001\u65b9\u8fdb\u7a0b&#xff0c;\u79f0\u4e3a\u53d1\u9001\u7aef\u3002\u53d1\u9001\u7aef\u4e3b\u673a\u5373\u7f51\u7edc\u901a\u4fe1\u4e2d\u7684\u6e90\u4e3b\u673a\u3002 \u63a5\u6536\u7aef&#xff1a;\u6570\u636e\u7684\u63a5\u6536\u65b9\u8fdb\u7a0b&#xff0c;\u79f0\u4e3a\u63a5\u6536\u7aef\u3002\u63a5\u6536\u7aef\u4e3b\u673a\u5373\u7f51\u7edc\u901a\u4fe1\u4e2d\u7684\u76ee\u7684\u4e3b\u673a\u3002 \u6536\u53d1\u7aef&#xff1a;\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u4e24\u7aef&#xff0c;\u4e5f\u7b80\u79f0\u4e3a\u6536\u53d1\u7aef\u3002 \u6ce8\u610f&#xff1a;\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u53ea\u662f\u76f8\u5bf9\u7684&#xff0c;\u53ea\u662f\u4e00\u6b21\u7f51\u7edc\u6570\u636e\u4f20\u8f93\u4ea7\u751f\u6570\u636e\u6d41\u5411\u540e\u7684\u6982\u5ff5\u3002<\/p>\n<h4>\u8bf7\u6c42\u548c\u54cd\u5e94<\/h4>\n<p>\u4e00\u822c\u6765\u8bf4&#xff0c;\u83b7\u53d6\u4e00\u4e2a\u7f51\u7edc\u8d44\u6e90&#xff0c;\u6d89\u53ca\u5230\u4e24\u6b21\u7f51\u7edc\u6570\u636e\u4f20\u8f93&#xff1a;<\/p>\n<p>\u7b2c\u4e00\u6b21&#xff1a;\u8bf7\u6c42\u6570\u636e\u7684\u53d1\u9001 \u7b2c\u4e8c\u6b21&#xff1a;\u54cd\u5e94\u6570\u636e\u7684\u53d1\u9001\u3002 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023740-68103b74b8871.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef<\/h4>\n<p>\u670d\u52a1\u7aef&#xff1a;\u5728\u5e38\u89c1\u7684\u7f51\u7edc\u6570\u636e\u4f20\u8f93\u573a\u666f\u4e0b&#xff0c;\u628a\u63d0\u4f9b\u670d\u52a1\u7684\u4e00\u65b9\u8fdb\u7a0b&#xff0c;\u79f0\u4e3a\u670d\u52a1\u7aef&#xff0c;\u53ef\u4ee5\u63d0\u4f9b\u5bf9\u5916\u670d\u52a1\u3002 \u5ba2\u6237\u7aef&#xff1a;\u83b7\u53d6\u670d\u52a1\u7684\u4e00\u65b9\u8fdb\u7a0b&#xff0c;\u79f0\u4e3a\u5ba2\u6237\u7aef\u3002 \u5bf9\u4e8e\u670d\u52a1\u6765\u8bf4&#xff0c;\u4e00\u822c\u662f\u63d0\u4f9b\u4ee5\u4e0b&#xff1a; \u5ba2\u6237\u7aef\u83b7\u53d6\u670d\u52a1\u8d44\u6e90 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023740-68103b74e98b3.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u5ba2\u6237\u7aef\u4fdd\u5b58\u8d44\u6e90\u5728\u670d\u52a1\u7aef&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023741-68103b752759e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>4. \u5e38\u89c1\u7684\u5ba2\u6237\u7aef\u670d\u52a1\u7aef\u6a21\u578b<\/h3>\n<p>\u6700\u5e38\u89c1\u7684\u573a\u666f&#xff0c;\u5ba2\u6237\u7aef\u662f\u6307\u7ed9\u7528\u6237\u4f7f\u7528\u7684\u7a0b\u5e8f&#xff0c;\u670d\u52a1\u7aef\u662f\u63d0\u4f9b\u7528\u6237\u670d\u52a1\u7684\u7a0b\u5e8f&#xff1a;<\/p>\n<li>\u5ba2\u6237\u7aef\u5148\u53d1\u9001\u8bf7\u6c42\u5230\u670d\u52a1\u7aef<\/li>\n<li>\u670d\u52a1\u7aef\u6839\u636e\u8bf7\u6c42\u6570\u636e&#xff0c;\u6267\u884c\u76f8\u5e94\u7684\u4e1a\u52a1\u5904\u7406<\/li>\n<li>\u670d\u52a1\u7aef\u8fd4\u56de\u54cd\u5e94&#xff1a;\u53d1\u9001\u4e1a\u52a1\u5904\u7406\u7ed3\u679c<\/li>\n<li>\u5ba2\u6237\u7aef\u6839\u636e\u54cd\u5e94\u6570\u636e&#xff0c;\u5c55\u793a\u5904\u7406\u7ed3\u679c&#xff08;\u5c55\u793a\u83b7\u53d6\u7684\u8d44\u6e90&#xff0c;\u6216\u63d0\u793a\u4fdd\u5b58\u8d44\u6e90\u7684\u5904\u7406\u7ed3\u679c&#xff09;<\/li>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023741-68103b7557602.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u4e8c\u3001Socket\u5957\u63a5\u5b57<\/h2>\n<h3>1. \u6982\u5ff5<\/h3>\n<p>Socket\u5957\u63a5\u5b57&#xff0c;\u662f\u7531\u7cfb\u7edf\u63d0\u4f9b\u7528\u4e8e\u7f51\u7edc\u901a\u4fe1\u7684\u6280\u672f&#xff0c;\u662f\u57fa\u4e8eTCP\/IP\u534f\u8bae\u7684\u7f51\u7edc\u901a\u4fe1\u7684\u57fa\u672c\u64cd\u4f5c\u5355\u5143\u3002\u57fa\u4e8eSocket\u5957\u63a5\u5b57\u7684\u7f51\u7edc\u7a0b\u5e8f\u5f00\u53d1\u5c31\u662f\u7f51\u7edc\u7f16\u7a0b\u3002<\/p>\n<h3>2.\u5206\u7c7b<\/h3>\n<p>Socket\u5957\u63a5\u5b57\u4e3b\u8981\u9488\u5bf9\u4f20\u8f93\u5c42\u534f\u8bae\u5212\u5206\u4e3a\u5982\u4e0b\u4e09\u7c7b&#xff1a; \u6d41\u5957\u63a5\u5b57&#xff1a;\u4f7f\u7528\u4f20\u8f93\u5c42TCP\u534f\u8bae TCP&#xff0c;\u5373Transmission Control Protocol&#xff08;\u4f20\u8f93\u63a7\u5236\u534f\u8bae&#xff09;&#xff0c;\u4f20\u8f93\u5c42\u534f\u8bae\u3002 \u4ee5\u4e0b\u4e3aTCP\u7684\u7279\u70b9&#xff1a;<\/p>\n<p>\u6709\u8fde\u63a5 \u53ef\u9760\u4f20\u8f93 \u9762\u5411\u5b57\u8282\u6d41 \u6709\u63a5\u6536\u7f13\u51b2\u533a&#xff0c;\u4e5f\u6709\u53d1\u9001\u7f13\u51b2\u533a \u5927\u5c0f\u4e0d\u9650<\/p>\n<p>\u5bf9\u4e8e\u5b57\u8282\u6d41\u6765\u8bf4&#xff0c;\u53ef\u4ee5\u7b80\u5355\u7684\u7406\u89e3\u4e3a&#xff0c;\u4f20\u8f93\u6570\u636e\u662f\u57fa\u4e8eIO\u6d41&#xff0c;\u6d41\u5f0f\u6570\u636e\u7684\u7279\u5f81\u5c31\u662f\u5728IO\u6d41\u6ca1\u6709\u5173\u95ed\u7684\u60c5\u51b5\u4e0b&#xff0c;\u662f\u65e0\u8fb9\u754c\u7684\u6570\u636e&#xff0c;\u53ef\u4ee5\u591a\u6b21\u53d1\u9001&#xff0c;\u4e5f\u53ef\u4ee5\u5206\u5f00\u591a\u6b21\u63a5\u6536\u3002<\/p>\n<p>\u6570\u636e\u62a5\u5957\u63a5\u5b57&#xff1a;\u4f7f\u7528\u4f20\u8f93\u5c42UDP\u534f\u8bae UDP&#xff0c;\u5373User Datagram Protocol&#xff08;\u7528\u6237\u6570\u636e\u62a5\u534f\u8bae&#xff09;&#xff0c;\u4f20\u8f93\u5c42\u534f\u8bae\u3002 \u4ee5\u4e0b\u4e3aUDP\u7684\u7279\u70b9&#xff1a;<\/p>\n<p>\u65e0\u8fde\u63a5 \u4e0d\u53ef\u9760\u4f20\u8f93 \u9762\u5411\u6570\u636e\u62a5 \u6709\u63a5\u6536\u7f13\u51b2\u533a&#xff0c;\u65e0\u53d1\u9001\u7f13\u51b2\u533a \u5927\u5c0f\u53d7\u9650&#xff1a;\u4e00\u6b21\u6700\u591a\u4f20\u8f9364k<\/p>\n<p>\u5bf9\u4e8e\u6570\u636e\u62a5\u6765\u8bf4&#xff0c;\u53ef\u4ee5\u7b80\u5355\u7684\u7406\u89e3\u4e3a&#xff0c;\u4f20\u8f93\u6570\u636e\u662f\u4e00\u5757\u4e00\u5757\u7684&#xff0c;\u53d1\u9001\u4e00\u5757\u6570\u636e\u5047\u5982100\u4e2a\u5b57\u8282&#xff0c;\u5fc5\u987b\u4e00\u6b21\u53d1\u9001&#xff0c;\u63a5\u6536\u4e5f\u5fc5\u987b\u4e00\u6b21\u63a5\u6536100\u4e2a\u5b57\u8282&#xff0c;\u800c\u4e0d\u80fd\u5206100\u6b21&#xff0c;\u6bcf\u6b21\u63a5\u65361\u4e2a\u5b57\u8282\u3002<\/p>\n<h3>3. Java\u6570\u636e\u62a5\u5957\u63a5\u5b57\u901a\u4fe1\u6a21\u578b<\/h3>\n<p>\u5bf9\u4e8eUDP\u534f\u8bae\u6765\u8bf4&#xff0c;\u5177\u6709\u65e0\u8fde\u63a5&#xff0c;\u9762\u5411\u6570\u636e\u62a5\u7684\u7279\u5f81&#xff0c;\u5373\u6bcf\u6b21\u90fd\u662f\u6ca1\u6709\u5efa\u7acb\u8fde\u63a5&#xff0c;\u5e76\u4e14\u4e00\u6b21\u53d1\u9001\u5168\u90e8\u6570\u636e\u62a5&#xff0c;\u4e00\u6b21\u63a5\u6536\u5168\u90e8\u7684\u6570\u636e\u62a5\u3002 java\u4e2d\u4f7f\u7528UDP\u534f\u8bae\u901a\u4fe1&#xff0c;\u4e3b\u8981\u57fa\u4e8e DatagramSocket \u7c7b\u6765\u521b\u5efa\u6570\u636e\u62a5\u5957\u63a5\u5b57&#xff0c;\u5e76\u4f7f\u7528DatagramPacket \u4f5c\u4e3a\u53d1\u9001\u6216\u63a5\u6536\u7684UDP\u6570\u636e\u62a5\u3002\u5bf9\u4e8e\u4e00\u6b21\u53d1\u9001\u53ca\u63a5\u6536UDP\u6570\u636e\u62a5\u7684\u6d41\u7a0b\u5982\u4e0b&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023741-68103b7588434.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4ee5\u4e0a\u53ea\u662f\u4e00\u6b21\u53d1\u9001\u7aef\u7684UDP\u6570\u636e\u62a5\u53d1\u9001&#xff0c;\u53ca\u63a5\u6536\u7aef\u7684\u6570\u636e\u62a5\u63a5\u6536&#xff0c;\u5e76\u6ca1\u6709\u8fd4\u56de\u7684\u6570\u636e\u3002\u4e5f\u5c31\u662f\u53ea\u6709\u8bf7\u6c42&#xff0c;\u6ca1\u6709\u54cd\u5e94\u3002\u5bf9\u4e8e\u4e00\u4e2a\u670d\u52a1\u7aef\u6765\u8bf4&#xff0c;\u91cd\u8981\u7684\u662f\u63d0\u4f9b\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5904\u7406\u53ca\u54cd\u5e94&#xff0c;\u6d41\u7a0b\u5982\u4e0b&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023741-68103b75bbacf.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>4.Java\u6d41\u5957\u63a5\u5b57\u901a\u4fe1\u6a21\u578b<\/h3>\n<p>\u5982\u4e0b\u56fe <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023741-68103b75f1274.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> Socket\u7f16\u7a0b\u6ce8\u610f\u4e8b\u9879<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023742-68103b7630af1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<li>\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef&#xff1a;\u5f00\u53d1\u65f6&#xff0c;\u7ecf\u5e38\u662f\u57fa\u4e8e\u4e00\u4e2a\u4e3b\u673a\u5f00\u542f\u4e24\u4e2a\u8fdb\u7a0b\u4f5c\u4e3a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef&#xff0c;\u4f46\u771f\u5b9e\u7684\u573a\u666f&#xff0c;\u4e00\u822c\u90fd\u662f\u4e0d\u540c\u4e3b\u673a\u3002<\/li>\n<li>\u6ce8\u610f\u76ee\u7684IP\u548c\u76ee\u7684\u7aef\u53e3\u53f7&#xff0c;\u6807\u8bc6\u4e86\u4e00\u6b21\u6570\u636e\u4f20\u8f93\u65f6\u8981\u53d1\u9001\u6570\u636e\u7684\u7ec8\u70b9\u4e3b\u673a\u548c\u8fdb\u7a0b<\/li>\n<li>Socket\u7f16\u7a0b\u6211\u4eec\u662f\u4f7f\u7528\u6d41\u5957\u63a5\u5b57\u548c\u6570\u636e\u62a5\u5957\u63a5\u5b57&#xff0c;\u57fa\u4e8e\u4f20\u8f93\u5c42\u7684TCP\u6216UDP\u534f\u8bae&#xff0c;\u4f46\u5e94\u7528\u5c42\u534f\u8bae&#xff0c;\u4e5f\u9700\u8981\u8003\u8651&#xff0c;\u8fd9\u5757\u6211\u4eec\u5728\u540e\u7eed\u6765\u8bf4\u660e\u5982\u4f55\u8bbe\u8ba1\u5e94\u7528\u5c42\u534f\u8bae\u3002<\/li>\n<li>\u5173\u4e8e\u7aef\u53e3\u88ab\u5360\u7528\u7684\u95ee\u9898<\/li>\n<p>\u5982\u679c\u4e00\u4e2a\u8fdb\u7a0bA\u5df2\u7ecf\u7ed1\u5b9a\u4e86\u4e00\u4e2a\u7aef\u53e3&#xff0c;\u518d\u542f\u52a8\u4e00\u4e2a\u8fdb\u7a0bB\u7ed1\u5b9a\u8be5\u7aef\u53e3&#xff0c;\u5c31\u4f1a\u62a5\u9519&#xff0c;\u8fd9\u79cd\u60c5\u51b5\u4e5f\u53eb\u7aef\u53e3\u88ab\u5360\u7528 \u6b64\u65f6\u9700\u8981\u68c0\u67e5\u8fdb\u7a0bB\u7ed1\u5b9a\u7684\u662f\u54ea\u4e2a\u7aef\u53e3&#xff0c;\u518d\u67e5\u770b\u8be5\u7aef\u53e3\u88ab\u54ea\u4e2a\u8fdb\u7a0b\u5360\u7528\u3002\u4ee5\u4e0b\u4e3a\u901a\u8fc7\u7aef\u53e3\u53f7\u67e5\u8fdb\u7a0b\u7684\u65b9\u5f0f&#xff1a; \u5728cmd\u8f93\u5165 netstat -ano | findstr \u7aef\u53e3\u53f7 &#xff0c;\u5219\u53ef\u4ee5\u663e\u793a\u5bf9\u5e94\u8fdb\u7a0b\u7684pid\u3002 \u5728\u4efb\u52a1\u7ba1\u7406\u5668\u4e2d&#xff0c;\u901a\u8fc7pid\u67e5\u627e\u8fdb\u7a0b<\/p>\n<p>\u5982\u4f55\u89e3\u51b3\u7aef\u53e3\u88ab\u5360\u7528\u7684\u95ee\u9898&#xff1a;<\/p>\n<p>\u5982\u679c\u5360\u7528\u7aef\u53e3\u7684\u8fdb\u7a0bA\u4e0d\u9700\u8981\u8fd0\u884c&#xff0c;\u5c31\u53ef\u4ee5\u5173\u95edA\u540e&#xff0c;\u518d\u542f\u52a8\u9700\u8981\u7ed1\u5b9a\u8be5\u7aef\u53e3\u7684\u8fdb\u7a0bB \u5982\u679c\u9700\u8981\u8fd0\u884cA\u8fdb\u7a0b&#xff0c;\u5219\u53ef\u4ee5\u4fee\u6539\u8fdb\u7a0bB\u7684\u7ed1\u5b9a\u7aef\u53e3&#xff0c;\u6362\u4e3a\u5176\u4ed6\u6ca1\u6709\u4f7f\u7528\u7684\u7aef\u53e3\u3002<\/p>\n<h2>\u4e09\u3001UDP\u6570\u636e\u62a5\u5957\u63a5\u5b57\u7f16\u7a0b<\/h2>\n<h3>1. DatagramSocket API<\/h3>\n<p>DatagramSocket \u662fUDP Socket&#xff0c;\u7528\u4e8e\u53d1\u9001\u548c\u63a5\u6536UDP\u6570\u636e\u62a5\u3002 DatagramSocket \u6784\u9020\u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>DatagramSocket()<\/td>\n<td>\u521b\u5efa\u4e00\u4e2aUDP\u6570\u636e\u62a5\u5957\u63a5\u5b57\u7684Socket&#xff0c;\u7ed1\u5b9a\u5230\u672c\u673a\u4efb\u610f\u4e00\u4e2a\u968f\u673a\u7aef\u53e3&#xff08;\u4e00\u822c\u7528\u4e8e\u5ba2\u6237\u7aef&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>DatagramSocket(intport)<\/td>\n<td>\u521b\u5efa\u4e00\u4e2aUDP\u6570\u636e\u62a5\u5957\u63a5\u5b57\u7684Socket&#xff0c;\u7ed1\u5b9a\u5230\u672c\u673a\u6307\u5b9a\u7684\u7aef\u53e3&#xff08;\u4e00\u822c\u7528\u4e8e\u670d\u52a1\u7aef&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>DatagramSocket \u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>void receive(DatagramPacket p)<\/td>\n<td>\u4ece\u6b64\u5957\u63a5\u5b57\u63a5\u6536\u6570\u636e\u62a5&#xff08;\u5982\u679c\u6ca1\u6709\u63a5\u6536\u5230\u6570\u636e\u62a5&#xff0c;\u8be5\u65b9\u6cd5\u4f1a\u963b\u585e\u7b49\u5f85&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>void send(DatagramPacket p<\/td>\n<td>\u4ece\u6b64\u5957\u63a5\u5b57\u53d1\u9001\u6570\u636e\u62a5\u5305&#xff08;\u4e0d\u4f1a\u963b\u585e\u7b49\u5f85&#xff0c;\u76f4\u63a5\u53d1\u9001&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>void close()<\/td>\n<td>\u5173\u95ed\u6b64\u6570\u636e\u62a5\u5957\u63a5\u5b57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2 .DatagramPacket API<\/h3>\n<p>DatagramPacket\u662fUDP Socket\u53d1\u9001\u548c\u63a5\u6536\u7684\u6570\u636e\u62a5\u3002 DatagramPacket \u6784\u9020\u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>DatagramPacket(byte[] buf, int length)<\/td>\n<td>\u6784\u9020\u4e00\u4e2aDatagramPacket\u4ee5\u7528\u6765\u63a5\u6536\u6570\u636e\u62a5&#xff0c;\u63a5\u6536\u7684\u6570\u636e\u4fdd\u5b58\u5728\u5b57\u8282\u6570\u7ec4&#xff08;\u7b2c\u4e00\u4e2a\u53c2\u6570buf&#xff09;\u4e2d&#xff0c;\u63a5\u6536\u6307\u5b9a\u957f\u5ea6&#xff08;\u7b2c\u4e8c\u4e2a\u53c2\u6570length&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>DatagramPacket(byte[]buf, int offset, int length,SocketAddress address)<\/td>\n<td>\u6784\u9020\u4e00\u4e2aDatagramPacket\u4ee5\u7528\u6765\u53d1\u9001\u6570\u636e\u62a5&#xff0c;\u53d1\u9001\u7684\u6570\u636e\u4e3a\u5b57\u8282\u6570\u7ec4&#xff08;\u7b2c\u4e00\u4e2a\u53c2\u6570buf&#xff09;\u4e2d&#xff0c;\u4ece0\u5230\u6307\u5b9a\u957f\u5ea6&#xff08;\u7b2c\u4e8c\u4e2a\u53c2\u6570length&#xff09;\u3002address\u6307\u5b9a\u76ee\u7684\u4e3b\u673a\u7684IP\u548c\u7aef\u53e3\u53f7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>DatagramPacket \u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>InetAddress getAddress()<\/td>\n<td>\u4ece\u63a5\u6536\u7684\u6570\u636e\u62a5\u4e2d&#xff0c;\u83b7\u53d6\u53d1\u9001\u7aef\u4e3b\u673aIP\u5730\u5740&#xff1b;\u6216\u4ece\u53d1\u9001\u7684\u6570\u636e\u62a5\u4e2d&#xff0c;\u83b7\u53d6\u63a5\u6536\u7aef\u4e3b\u673aIP\u5730\u5740<\/td>\n<\/tr>\n<tr>\n<td>int getPort()<\/td>\n<td>\u4ece\u63a5\u6536\u7684\u6570\u636e\u62a5\u4e2d&#xff0c;\u83b7\u53d6\u53d1\u9001\u7aef\u4e3b\u673a\u7684\u7aef\u53e3\u53f7&#xff1b;\u6216\u4ece\u53d1\u9001\u7684\u6570\u636e\u62a5\u4e2d&#xff0c;\u83b7\u53d6\u63a5\u6536\u7aef\u4e3b\u673a\u7aef\u53e3\u53f7<\/td>\n<\/tr>\n<tr>\n<td>byte[] getData()<\/td>\n<td>\u83b7\u53d6\u6570\u636e\u62a5\u4e2d\u7684\u6570\u636e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6784\u9020UDP\u53d1\u9001\u7684\u6570\u636e\u62a5\u65f6&#xff0c;\u9700\u8981\u4f20\u5165 SocketAddress &#xff0c;\u8be5\u5bf9\u8c61\u53ef\u4ee5\u4f7f\u7528 InetSocketAddress \u6765\u521b\u5efa\u3002<\/p>\n<h3>3. InetSocketAddress API<\/h3>\n<p>InetSocketAddress &#xff08; SocketAddress \u7684\u5b50\u7c7b &#xff09;\u6784\u9020\u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>InetSocketAddress(InetAddress addr, int port)<\/td>\n<td>\u521b\u5efa\u4e00\u4e2aSocket\u5730\u5740&#xff0c;\u5305\u542bIP\u5730\u5740\u548c\u7aef\u53e3\u53f7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>4. \u5177\u4f53\u5b9e\u4f8b<\/h3>\n<p>\u793a\u4f8b\u4e00&#xff1a;\u4e00\u53d1\u4e00\u6536&#xff08;\u65e0\u54cd\u5e94&#xff09; \u4ee5\u4e0b\u4e3a\u4e00\u4e2a\u5ba2\u6237\u7aef\u4e00\u6b21\u6570\u636e\u53d1\u9001&#xff0c;\u548c\u670d\u52a1\u7aef\u591a\u6b21\u6570\u636e\u63a5\u6536&#xff08;\u4e00\u6b21\u53d1\u9001\u4e00\u6b21\u63a5\u6536&#xff0c;\u53ef\u4ee5\u63a5\u6536\u591a\u6b21&#xff09;&#xff0c;\u5373\u53ea\u6709\u5ba2\u6237\u7aef\u8bf7\u6c42&#xff0c;\u4f46\u6ca1\u6709\u670d\u52a1\u7aef\u54cd\u5e94\u7684\u793a\u4f8b&#xff1a;<\/p>\n<p>UDP\u670d\u52a1\u7aef&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>udp<span class=\"token punctuation\">.<\/span>demo1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">IOException<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Arrays<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UdpServer<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/\u670d\u52a1\u5668socket\u8981\u7ed1\u5b9a\u56fa\u5b9a\u7684\u7aef\u53e3<\/span><br \/>\n        <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ 1.\u521b\u5efa\u670d\u52a1\u7aefDatagramSocket&#xff0c;\u6307\u5b9a\u7aef\u53e3&#xff0c;\u53ef\u4ee5\u53d1\u9001\u53ca\u63a5\u6536UDP\u6570\u636e\u62a5<\/span><br \/>\n            <span class=\"token class-name\">DatagramSocket<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/\u4e0d\u505c\u7684\u63a5\u6536\u5ba2\u6237\u7aefudp\u6570\u636e\u62a5<\/span><br \/>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/ 2.\u521b\u5efa\u6570\u636e\u62a5&#xff0c;\u7528\u4e8e\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e<\/span><br \/>\n                <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> bytes <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/1m&#061;1024kb, 1kb&#061;1024byte, UDP\u6700\u591a64 k&#xff08;\u5305\u542bUDP\u9996\u90e88byte&#xff09;<\/span><br \/>\n                <span class=\"token class-name\">DatagramPacket<\/span> packet <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">(<\/span>bytes<span class=\"token punctuation\">,<\/span> bytes<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7b49\u5f85\u63a5\u6536UDP\u6570\u636e\u62a5&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token comment\">\/\/ 3.\u7b49\u5f85\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684UDP\u6570\u636e\u62a5&#xff0c;\u8be5\u65b9\u6cd5\u5728\u63a5\u6536\u5230\u6570\u636e\u62a5\u4e4b\u524d\u4f1a\u4e00\u76f4\u963b\u585e&#xff0c;\u63a5\u6536\u5230\u6570\u636e\u62a5\u4ee5\u540e&#xff0c;DatagramPacket\u5bf9\u8c61&#xff0c;\u5305\u542b\u6570\u636e&#xff08;bytes&#xff09;\u548c\u5ba2\u6237\u7aefip\u3001\u7aef\u53e3\u53f7<\/span><br \/>\n                socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">receive<\/span><span class=\"token punctuation\">(<\/span>packet<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aefIP&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span>packet<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getHostAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u7aef\u53e3\u53f7&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> packet<span class=\"token punctuation\">.<\/span><span class=\"token function\">getPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u539f\u751f\u6570\u636e\u4e3a&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Arrays<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span>packet<span class=\"token punctuation\">.<\/span><span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6587\u672c\u6570\u636e\u4e3a&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">(<\/span>packet<span class=\"token punctuation\">.<\/span><span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd0\u884c\u540e&#xff0c;\u670d\u52a1\u7aef\u5c31\u542f\u52a8\u4e86&#xff0c;\u63a7\u5236\u53f0\u8f93\u51fa\u5982\u4e0b&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023742-68103b7661b7c.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u53ef\u4ee5\u770b\u51fa&#xff0c;\u6b64\u65f6\u4ee3\u7801\u662f\u963b\u585e\u7b49\u5f85\u5728 socket.receive(packet) \u4ee3\u7801\u884c&#xff0c;\u76f4\u5230\u63a5\u6536\u5230\u4e00\u4e2aUDP\u6570\u636e\u62a5\u3002<\/p>\n<p>UDP\u5ba2\u6237\u7aef<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>udp<span class=\"token punctuation\">.<\/span>demo1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">IOException<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">InetSocketAddress<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">SocketAddress<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UdpClient<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u670d\u52a1\u7aefsocket\u5730\u5740&#xff0c;\u5305\u542b\u57df\u540d\u6216IP&#xff0c;\u53ca\u7aef\u53e3\u53f7<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">SocketAddress<\/span> ADDRESS <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">newInetSocketAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;localhost&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 4.\u521b\u5efa\u5ba2\u6237\u7aefDatagramSocket&#xff0c;\u5f00\u542f\u968f\u673a\u7aef\u53e3\u5c31\u884c&#xff0c;\u53ef\u4ee5\u53d1\u9001\u53ca\u63a5\u6536UDP\u6570\u636e\u62a5<\/span><br \/>\n        <span class=\"token class-name\">DatagramSocket<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 5-1.\u51c6\u5907\u8981\u53d1\u9001\u7684\u6570\u636e<\/span><br \/>\n        <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> bytes <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world!&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getBytes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 5-2.\u7ec4\u88c5\u8981\u53d1\u9001\u7684UDP\u6570\u636e\u62a5&#xff0c;\u5305\u542b\u6570\u636e&#xff0c;\u53ca\u53d1\u9001\u7684\u670d\u52a1\u7aef\u4fe1\u606f&#xff08;\u670d\u52a1\u5668IP&#043;\u7aef\u53e3\u53f7&#xff09;<\/span><br \/>\n        <span class=\"token class-name\">DatagramPacket<\/span> packet <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">(<\/span>bytes<span class=\"token punctuation\">,<\/span> bytes<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">,<\/span> ADDRESS<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 6.\u53d1\u9001UDP\u6570\u636e\u62a5<\/span><br \/>\n        socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>packet<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5ba2\u6237\u7aef\u542f\u52a8\u540e\u4f1a\u53d1\u9001\u4e00\u4e2a&#034;hello world!&#034; \u7684\u5b57\u7b26\u4e32\u5230\u670d\u52a1\u7aef&#xff0c;\u5728\u670d\u52a1\u7aef\u63a5\u6536\u540e&#xff0c;\u63a7\u5236\u53f0\u8f93\u51fa\u5185\u5bb9\u5982\u4e0b&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023742-68103b768ce7e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u4ece\u4ee5\u4e0a\u53ef\u4ee5\u770b\u51fa&#xff0c;\u53d1\u9001\u7684UDP\u6570\u636e\u62a5&#xff08;\u5047\u8bbe\u53d1\u9001\u7684\u6570\u636e\u5b57\u8282\u6570\u7ec4\u957f\u5ea6\u4e3aM&#xff09;&#xff0c;\u5728\u63a5\u6536\u5230\u4ee5\u540e&#xff08;\u5047\u8bbe\u63a5\u6536\u7684\u6570\u636e\u5b57\u8282\u6570\u7ec4\u957f\u5ea6\u4e3aN&#xff09;&#xff1a;<\/p>\n<li>\u5982\u679cN&gt;M&#xff0c;\u5219\u63a5\u6536\u7684byte[]\u5b57\u8282\u6570\u7ec4\u4e2d\u4f1a\u6709\u5f88\u591a\u521d\u59cb\u5316byte[]\u7684\u521d\u59cb\u503c0&#xff0c;\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5c31\u662f\u7a7a\u767d\u5b57\u7b26&#xff1b;<\/li>\n<li>\u5982\u679cN&lt;M&#xff0c;\u5219\u4f1a\u53d1\u751f\u6570\u636e\u90e8\u5206\u4e22\u5931 \u8981\u89e3\u51b3\u4ee5\u4e0a\u95ee\u9898&#xff0c;\u5c31\u9700\u8981\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u53cc\u65b9\u7ea6\u5b9a\u597d\u4e00\u81f4\u7684\u534f\u8bae&#xff0c;\u5982\u89c4\u5b9a\u597d\u7ed3\u675f\u7684\u6807\u8bc6\u6216\u6574\u4e2a\u6570\u636e\u7684\u957f\u5ea6&#xff1a;<\/li>\n<p>\u793a\u4f8b\u4e8c&#xff1a;\u8bf7\u6c42\u54cd\u5e94<\/p>\n<p>\u793a\u4f8b\u4e00\u53ea\u662f\u5ba2\u6237\u7aef\u8bf7\u6c42\u548c\u670d\u52a1\u7aef\u63a5\u6536&#xff0c;\u5e76\u6ca1\u6709\u5305\u542b\u670d\u52a1\u7aef\u7684\u8fd4\u56de\u54cd\u5e94\u3002\u4ee5\u4e0b\u662f\u5bf9\u5e94\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u6539\u9020&#xff1a; \u6784\u9020\u4e00\u4e2a\u5c55\u793a\u670d\u52a1\u7aef\u672c\u5730\u67d0\u4e2a\u76ee\u5f55&#xff08;BASE_PATH&#xff09;\u7684\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6\u5217\u8868\u7684\u670d\u52a1 &#xff08;1&#xff09;\u5ba2\u6237\u7aef\u5148\u63a5\u6536\u952e\u76d8\u8f93\u5165&#xff0c;\u8868\u793a\u8981\u5c55\u793a\u7684\u76f8\u5bf9\u8def\u5f84&#xff08;\u76f8\u5bf9BASE_PATH\u7684\u8def\u5f84&#xff09; &#xff08;2&#xff09;\u53d1\u9001\u8bf7\u6c42&#xff1a;\u5c06\u8be5\u76f8\u5bf9\u8def\u5f84\u4f5c\u4e3a\u6570\u636e\u62a5\u53d1\u9001\u5230\u670d\u52a1\u7aef &#xff08;3&#xff09;\u670d\u52a1\u7aef\u63a5\u6536\u5e76\u5904\u7406\u8bf7\u6c42&#xff1a;\u6839\u636e\u8be5\u8bf7\u6c42\u6570\u636e&#xff0c;\u4f5c\u4e3a\u672c\u5730\u76ee\u5f55\u7684\u8def\u5f84&#xff0c;\u5217\u51fa\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6\u53ca\u5b50\u6587\u4ef6\u5939 &#xff08;4&#xff09;\u670d\u52a1\u7aef\u8fd4\u56de\u54cd\u5e94&#xff1a;\u904d\u5386\u5b50\u6587\u4ef6\u548c\u5b50\u6587\u4ef6\u5939&#xff0c;\u6bcf\u4e2a\u6587\u4ef6\u540d\u4e00\u884c&#xff0c;\u4f5c\u4e3a\u54cd\u5e94\u7684\u6570\u636e\u62a5&#xff0c;\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef &#xff08;5&#xff09;\u5ba2\u6237\u7aef\u63a5\u6536\u54cd\u5e94&#xff1a;\u7b80\u5355\u7684\u6253\u5370\u8f93\u51fa\u6240\u6709\u7684\u54cd\u5e94\u5185\u5bb9&#xff0c;\u5373\u6587\u4ef6\u5217\u8868\u3002 \u4e3a\u4e86\u89e3\u51b3\u7a7a\u5b57\u7b26\u6216\u957f\u5ea6\u4e0d\u8db3\u6570\u636e\u4e22\u5931\u7684\u95ee\u9898&#xff0c;\u5ba2\u6237\u7aef\u670d\u52a1\u7aef\u7ea6\u5b9a\u597d\u7edf\u4e00\u7684\u534f\u8bae&#xff1a;\u8fd9\u91cc\u7b80\u5355\u7684\u8bbe\u8ba1\u4e3aASCII\u7ed3\u675f\u5b57\u7b26 \\\\3 \u8868\u793a\u62a5\u6587\u7ed3\u675f\u3002 \u4ee5\u4e0b\u4e3a\u6574\u4e2a\u5ba2\u6237\u7aef\u670d\u52a1\u7aef\u7684\u4ea4\u4e92\u6267\u884c\u6d41\u7a0b&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023742-68103b76c2c41.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4ee5\u4e0b\u4e3a\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u4ee3\u7801&#xff1a;<\/p>\n<p>UDP\u670d\u52a1\u7aef&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>udp<span class=\"token punctuation\">.<\/span>demo2<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">File<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">IOException<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>nio<span class=\"token punctuation\">.<\/span>charset<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">StandardCharsets<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UdpServer<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u5668socket\u8981\u7ed1\u5b9a\u56fa\u5b9a\u7684\u7aef\u53e3<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u672c\u5730\u6587\u4ef6\u76ee\u5f55\u8981\u5c55\u793a\u7684\u6839\u8def\u5f84<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> BASE_PATH <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;E:\/TMP&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1.\u521b\u5efa\u670d\u52a1\u7aefDatagramSocket&#xff0c;\u6307\u5b9a\u7aef\u53e3&#xff0c;\u53ef\u4ee5\u53d1\u9001\u53ca\u63a5\u6536UDP\u6570\u636e\u62a5<\/span><br \/>\n        <span class=\"token class-name\">DatagramSocket<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u4e0d\u505c\u7684\u63a5\u6536\u5ba2\u6237\u7aefudp\u6570\u636e\u62a5<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ 2.\u521b\u5efa\u6570\u636e\u62a5&#xff0c;\u7528\u4e8e\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e<\/span><br \/>\n            <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> requestData <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/1m&#061;1024kb, 1kb&#061;1024byte, UDP\u6700 \u591a64k&#xff08;\u5305\u542bUDP\u9996\u90e88byte&#xff09;<\/span><br \/>\n            <span class=\"token class-name\">DatagramPacket<\/span> requestPacket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">(<\/span>requestData<span class=\"token punctuation\">,<\/span> requestData<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7b49\u5f85\u63a5\u6536UDP\u6570\u636e\u62a5&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 3.\u7b49\u5f85\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684UDP\u6570\u636e\u62a5&#xff0c;\u8be5\u65b9\u6cd5\u5728\u63a5\u6536\u5230\u6570\u636e\u62a5\u4e4b\u524d\u4f1a\u4e00\u76f4\u963b\u585e&#xff0c;\u63a5\u6536\u5230\u6570\u636e\u62a5\u4ee5\u540e&#xff0c;DatagramPacket\u5bf9\u8c61&#xff0c;\u5305\u542b\u6570\u636e&#xff08;bytes&#xff09;\u548c\u5ba2\u6237\u7aefip\u3001\u7aef\u53e3\u53f7<\/span><br \/>\n            socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">receive<\/span><span class=\"token punctuation\">(<\/span>requestPacket<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aefIP&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> requestPacket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getHostAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u7aef\u53e3\u53f7&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> requestPacket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 7.\u63a5\u6536\u5230\u7684\u6570\u636e\u4f5c\u4e3a\u8bf7\u6c42&#xff0c;\u6839\u636e\u8bf7\u6c42\u6570\u636e\u6267\u884c\u4e1a\u52a1&#xff0c;\u5e76\u8fd4\u56de\u54cd\u5e94<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> requestData<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">byte<\/span> b <span class=\"token operator\">&#061;<\/span> requestData<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#039;\\\\3&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token comment\">\/\/ 7-1.\u8bfb\u53d6\u8bf7\u6c42\u7684\u6570\u636e&#xff1a;\u8bfb\u53d6\u5230\u7ea6\u5b9a\u597d\u7684\u7ed3\u675f\u7b26&#xff08;\\\\3&#xff09;&#xff0c;\u53d6\u7ed3\u675f\u7b26\u4e4b\u524d\u7684\u5185\u5bb9<\/span><br \/>\n                    <span class=\"token class-name\">String<\/span> request <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">(<\/span>requestData<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ 7-2.\u6839\u636e\u8bf7\u6c42\u5904\u7406\u4e1a\u52a1&#xff1a;\u672c\u5730\u76ee\u5f55\u6839\u8def\u5f84&#043;\u8bf7\u6c42\u8def\u5f84&#xff0c;\u4f5c\u4e3a\u8981\u5c55\u793a\u7684\u76ee\u5f55&#xff0c;\u5217\u51fa\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6<\/span><br \/>\n                    <span class=\"token comment\">\/\/\u8bf7\u6c42\u7684\u6587\u4ef6\u5217\u8868\u76ee\u5f55<\/span><br \/>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u6587\u4ef6\u5217\u8868\u8def\u5f84\u4e3a&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> BASE_PATH <span class=\"token operator\">&#043;<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token class-name\">File<\/span> dir <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">(<\/span>BASE_PATH <span class=\"token operator\">&#043;<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/\u83b7\u53d6\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6&#xff0c;\u5b50\u6587\u4ef6\u5939<\/span><br \/>\n                    <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> children <span class=\"token operator\">&#061;<\/span> dir<span class=\"token punctuation\">.<\/span><span class=\"token function\">listFiles<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ 7-3.\u6784\u9020\u8981\u8fd4\u56de\u7684\u54cd\u5e94\u5185\u5bb9&#xff1a;\u6bcf\u4e2a\u6587\u4ef6\u53ca\u76ee\u5f55\u540d\u79f0\u4e3a\u4e00\u884c<\/span><br \/>\n                    <span class=\"token class-name\">StringBuilder<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">StringBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>children <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">File<\/span> child <span class=\"token operator\">:<\/span> children<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>child<span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#043;<\/span><span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                       <span class=\"token punctuation\">}<\/span><br \/>\n                   <span class=\"token punctuation\">}<\/span><br \/>\n                    <span class=\"token comment\">\/\/\u54cd\u5e94\u4e5f\u8981\u7ea6\u5b9a\u7ed3\u675f\u7b26<\/span><br \/>\n                    response<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\3&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> responseData <span class=\"token operator\">&#061;<\/span>response<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getBytes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">StandardCharsets<\/span><span class=\"token punctuation\">.<\/span>UTF_8<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ 7-4.\u6784\u9020\u8fd4\u56de\u54cd\u5e94\u7684\u6570\u636e\u62a5DatagramPacket&#xff0c;\u6ce8\u610f\u63a5\u6536\u7684\u5ba2\u6237\u7aef\u6570\u636e\u62a5\u5305\u542bIP\u548c\u7aef\u53e3\u53f7&#xff0c;\u8981\u8bbe\u7f6e\u5230\u54cd\u5e94\u7684\u6570\u636e\u62a5\u4e2d<\/span><br \/>\n                    <span class=\"token class-name\">DatagramPacket<\/span> responsePacket <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">newDatagramPacket<\/span><span class=\"token punctuation\">(<\/span>responseData<span class=\"token punctuation\">,<\/span> responseData<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">,<\/span> requestPacket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getSocketAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/ 7-5.\u53d1\u9001\u8fd4\u56de\u54cd\u5e94\u7684\u6570\u636e\u62a5<\/span><br \/>\n                    socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>responsePacket<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n           <span class=\"token punctuation\">}<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>UDP\u5ba2\u6237\u7aef<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>udp<span class=\"token punctuation\">.<\/span>demo2<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">IOException<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">InetSocketAddress<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">SocketAddress<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>nio<span class=\"token punctuation\">.<\/span>charset<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">StandardCharsets<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Scanner<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">UdpClient<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u670d\u52a1\u7aefsocket\u5730\u5740&#xff0c;\u5305\u542b\u57df\u540d\u6216IP&#xff0c;\u53ca\u7aef\u53e3\u53f7<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">SocketAddress<\/span> ADDRESS <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InetSocketAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;localhost&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 4.\u521b\u5efa\u5ba2\u6237\u7aefDatagramSocket&#xff0c;\u5f00\u542f\u968f\u673a\u7aef\u53e3\u5c31\u884c&#xff0c;\u53ef\u4ee5\u53d1\u9001\u53ca\u63a5\u6536UDP\u6570\u636e\u62a5<\/span><br \/>\n        <span class=\"token class-name\">DatagramSocket<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramSocket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 5-1.\u51c6\u5907\u8981\u53d1\u9001\u7684\u6570\u636e&#xff1a;\u8fd9\u91cc\u8c03\u6574\u4e3a\u952e\u76d8\u8f93\u5165\u4f5c\u4e3a\u53d1\u9001\u7684\u5185\u5bb9<\/span><br \/>\n        <span class=\"token class-name\">Scanner<\/span> scanner <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Scanner<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165\u8981\u5c55\u793a\u7684\u76ee\u5f55&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 5-2.\u6bcf\u8f93\u5165\u65b0\u884c&#xff08;\u56de\u8f66&#xff09;&#xff0c;\u5c31\u4f5c\u4e3aUDP\u53d1\u9001\u7684\u6570\u636e\u62a5&#xff0c;\u4e3a\u4e86\u63a5\u6536\u7aef\u83b7\u53d6\u6709\u6548\u7684\u5185\u5bb9&#xff08;\u53bb\u9664\u7a7a\u5b57\u7b26\u4e32&#xff09;&#xff0c;\u7ea6\u5b9a\\\\3\u4e3a\u7ed3\u675f<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> request <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;\\\\3&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> requestData <span class=\"token operator\">&#061;<\/span> request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getBytes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">StandardCharsets<\/span><span class=\"token punctuation\">.<\/span>UTF_8<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 5-3.\u7ec4\u88c5\u8981\u53d1\u9001\u7684UDP\u6570\u636e\u62a5&#xff0c;\u5305\u542b\u6570\u636e&#xff0c;\u53ca\u53d1\u9001\u7684\u670d\u52a1\u7aef\u4fe1\u606f&#xff08;\u670d\u52a1\u5668IP&#043;\u7aef\u53e3\u53f7&#xff09;<\/span><br \/>\n            <span class=\"token class-name\">DatagramPacket<\/span> requestPacket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">(<\/span>requestData<span class=\"token punctuation\">,<\/span> requestData<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">,<\/span> ADDRESS<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 6.\u53d1\u9001UDP\u6570\u636e\u62a5<\/span><br \/>\n            socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>requestPacket<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 8.\u63a5\u6536\u670d\u52a1\u7aef\u54cd\u5e94\u7684\u6570\u636e\u62a5&#xff0c;\u5e76\u6839\u636e\u54cd\u5e94\u5185\u5bb9\u51b3\u5b9a\u4e0b\u4e2a\u6b65\u9aa4&#xff08;\u6211\u4eec\u8fd9\u91cc\u7b80\u5355\u7684\u6253\u5370\u5373\u53ef&#xff09;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 8-1.\u521b\u5efa\u6570\u636e\u62a5&#xff0c;\u7528\u4e8e\u63a5\u6536\u670d\u52a1\u7aef\u8fd4\u56de&#xff08;\u53d1\u9001&#xff09;\u7684\u54cd\u5e94<\/span><br \/>\n            <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> responseData <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">byte<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">DatagramPacket<\/span> responsePacket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">DatagramPacket<\/span><span class=\"token punctuation\">(<\/span>responseData<span class=\"token punctuation\">,<\/span> responseData<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 8-2.\u63a5\u6536\u54cd\u5e94\u6570\u636e\u62a5<\/span><br \/>\n            socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">receive<\/span><span class=\"token punctuation\">(<\/span>responsePacket<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8be5\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u5217\u8868\u4e3a&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ byte[]\u4e0b\u6b21\u89e3\u6790\u7684\u8d77\u59cb\u4f4d\u7f6e<\/span><br \/>\n            <span class=\"token keyword\">int<\/span> next <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> responseData<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">byte<\/span> b <span class=\"token operator\">&#061;<\/span> responseData<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#039;\\\\3&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u7ed3\u675f\u7b26\u9000\u51fa<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#039;\\\\n&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><span class=\"token comment\">\/\/\u6362\u884c\u7b26\u65f6\u8fdb\u884c\u89e3\u6790<\/span><br \/>\n                    <span class=\"token comment\">\/\/\u8d77\u59cb\u4f4d\u7f6e\u5230\u6362\u884c\u7b26\u524d\u4e00\u4e2a\u7d22\u5f15\u4f4d\u7f6e\u4e3a\u8981\u89e3\u6790\u7684\u5185\u5bb9<\/span><br \/>\n                    <span class=\"token class-name\">String<\/span> fileName <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">(<\/span>responseData<span class=\"token punctuation\">,<\/span> next<span class=\"token punctuation\">,<\/span> i<span class=\"token operator\">&#8211;<\/span>next<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>fileName<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token comment\">\/\/\u4e0b\u6b21\u89e3\u6790\u4ece\u6362\u884c\u7b26\u540e\u4e00\u4e2a\u7d22\u5f15\u5f00\u59cb<\/span><br \/>\n                    next <span class=\"token operator\">&#061;<\/span> i<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n           <span class=\"token punctuation\">}<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5ba2\u6237\u7aef\u542f\u52a8\u540e\u4f1a\u7b49\u5f85\u8f93\u5165\u8981\u5c55\u793a\u7684\u8def\u5f84&#xff1a; \u5728\u8f93\u5165\u60f3\u67e5\u770b\u7684\u76ee\u5f55\u8def\u5f84\u540e&#xff0c;\u4f1a\u63a5\u6536\u5e76\u6253\u5370\u670d\u52a1\u7aef\u54cd\u5e94\u7684\u6587\u4ef6\u5217\u8868\u6570\u636e&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023743-68103b7744150.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u6b64\u65f6\u670d\u52a1\u7aef\u4e5f\u4f1a\u6253\u5370\u63a5\u6536\u5230\u7684\u5ba2\u6237\u7aef\u8bf7\u6c42\u6570\u636e&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023743-68103b7770b86.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u56db\u3001TCP\u6d41\u5957\u63a5\u5b57\u7f16\u7a0b<\/h2>\n<h3>1. ServerSocket API<\/h3>\n<p>ServerSocket \u662f\u521b\u5efaTCP\u670d\u52a1\u7aefSocket\u7684API\u3002 ServerSocket \u6784\u9020\u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>ServerSocket(int port)<\/td>\n<td>\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u7aef\u6d41\u5957\u63a5\u5b57Socket&#xff0c;\u5e76\u7ed1\u5b9a\u5230\u6307\u5b9a\u7aef\u53e3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>ServerSocket \u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>Socketaccept()<\/td>\n<td>\u5f00\u59cb\u76d1\u542c\u6307\u5b9a\u7aef\u53e3&#xff08;\u521b\u5efa\u65f6\u7ed1\u5b9a\u7684\u7aef\u53e3&#xff09;&#xff0c;\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u540e&#xff0c;\u8fd4\u56de\u4e00\u4e2a\u670d\u52a1\u7aefSocket\u5bf9\u8c61&#xff0c;\u5e76\u57fa\u4e8e\u8be5Socket\u5efa\u7acb\u4e0e\u5ba2\u6237\u7aef\u7684\u8fde\u63a5&#xff0c;\u5426\u5219\u963b\u585e\u7b49\u5f85<\/td>\n<\/tr>\n<tr>\n<td>void close()<\/td>\n<td>\u5173\u95ed\u6b64\u5957\u63a5\u5b57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2. socket API<\/h3>\n<p>Socket \u662f\u5ba2\u6237\u7aefSocket&#xff0c;\u6216\u670d\u52a1\u7aef\u4e2d\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u5efa\u7acb\u8fde\u63a5&#xff08;accept\u65b9\u6cd5&#xff09;\u7684\u8bf7\u6c42\u540e&#xff0c;\u8fd4\u56de\u7684\u670d\u52a1\u7aefSocket\u3002 \u4e0d\u7ba1\u662f\u5ba2\u6237\u7aef\u8fd8\u662f\u670d\u52a1\u7aefSocket&#xff0c;\u90fd\u662f\u53cc\u65b9\u5efa\u7acb\u8fde\u63a5\u4ee5\u540e&#xff0c;\u4fdd\u5b58\u7684\u5bf9\u7aef\u4fe1\u606f&#xff0c;\u53ca\u7528\u6765\u4e0e\u5bf9\u65b9\u6536\u53d1\u6570\u636e\u7684\u3002<\/p>\n<p>Socket \u6784\u9020\u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>Socket(String host, intport)<\/td>\n<td>\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u6d41\u5957\u63a5\u5b57Socket&#xff0c;\u5e76\u4e0e\u5bf9\u5e94IP\u7684\u4e3b\u673a\u4e0a&#xff0c;\u5bf9\u5e94\u7aef\u53e3\u7684\u8fdb\u7a0b\u5efa\u7acb\u8fde\u63a5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Socket \u65b9\u6cd5&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u7b7e\u540d\u65b9\u6cd5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>InetAddress getInetAddress()<\/td>\n<td>\u8fd4\u56de\u5957\u63a5\u5b57\u6240\u8fde\u63a5\u7684\u5730\u5740<\/td>\n<\/tr>\n<tr>\n<td>InputStream getInputStream()<\/td>\n<td>\u8fd4\u56de\u6b64\u5957\u63a5\u5b57\u7684\u8f93\u5165\u6d41<\/td>\n<\/tr>\n<tr>\n<td>OutputStream getOutputStream()<\/td>\n<td>\u8fd4\u56de\u6b64\u5957\u63a5\u5b57\u7684\u8f93\u51fa\u6d41<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>3. TCP\u4e2d\u7684\u957f\u77ed\u8fde\u63a5<\/h3>\n<p>TCP\u53d1\u9001\u6570\u636e\u65f6&#xff0c;\u9700\u8981\u5148\u5efa\u7acb\u8fde\u63a5&#xff0c;\u4ec0\u4e48\u65f6\u5019\u5173\u95ed\u8fde\u63a5\u5c31\u51b3\u5b9a\u662f\u77ed\u8fde\u63a5\u8fd8\u662f\u957f\u8fde\u63a5&#xff1a;\u77ed\u8fde\u63a5&#xff1a;\u6bcf\u6b21\u63a5\u6536\u5230\u6570\u636e\u5e76\u8fd4\u56de\u54cd\u5e94\u540e&#xff0c;\u90fd\u5173\u95ed\u8fde\u63a5&#xff0c;\u5373\u662f\u77ed\u8fde\u63a5\u3002\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u77ed\u8fde\u63a5\u53ea\u80fd\u4e00\u6b21\u6536\u53d1\u6570\u636e\u3002 \u957f\u8fde\u63a5&#xff1a;\u4e0d\u5173\u95ed\u8fde\u63a5&#xff0c;\u4e00\u76f4\u4fdd\u6301\u8fde\u63a5\u72b6\u6001&#xff0c;\u53cc\u65b9\u4e0d\u505c\u7684\u6536\u53d1\u6570\u636e&#xff0c;\u5373\u662f\u957f\u8fde\u63a5\u3002\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u957f\u8fde\u63a5\u53ef\u4ee5\u591a\u6b21\u6536\u53d1\u6570\u636e\u3002 \u5bf9\u6bd4\u4ee5\u4e0a\u957f\u77ed\u8fde\u63a5&#xff0c;\u4e24\u8005\u533a\u522b\u5982\u4e0b&#xff1a;<\/p>\n<p>\u5efa\u7acb\u8fde\u63a5\u3001\u5173\u95ed\u8fde\u63a5\u7684\u8017\u65f6&#xff1a;\u77ed\u8fde\u63a5\u6bcf\u6b21\u8bf7\u6c42\u3001\u54cd\u5e94\u90fd\u9700\u8981\u5efa\u7acb\u8fde\u63a5&#xff0c;\u5173\u95ed\u8fde\u63a5&#xff1b;\u800c\u957f\u8fde\u63a5\u53ea\u9700\u8981\u7b2c\u4e00\u6b21\u5efa\u7acb\u8fde\u63a5&#xff0c;\u4e4b\u540e\u7684\u8bf7\u6c42\u3001\u54cd\u5e94\u90fd\u53ef\u4ee5\u76f4\u63a5\u4f20\u8f93\u3002\u76f8\u5bf9\u6765\u8bf4\u5efa\u7acb\u8fde\u63a5&#xff0c;\u5173\u95ed\u8fde\u63a5\u4e5f\u662f\u8981\u8017\u65f6\u7684&#xff0c;\u957f\u8fde\u63a5\u6548\u7387\u66f4\u9ad8\u3002 \u4e3b\u52a8\u53d1\u9001\u8bf7\u6c42\u4e0d\u540c&#xff1a;\u77ed\u8fde\u63a5\u4e00\u822c\u662f\u5ba2\u6237\u7aef\u4e3b\u52a8\u5411\u670d\u52a1\u7aef\u53d1\u9001\u8bf7\u6c42&#xff1b;\u800c\u957f\u8fde\u63a5\u53ef\u4ee5\u662f\u5ba2\u6237\u7aef\u4e3b\u52a8\u53d1\u9001\u8bf7\u6c42&#xff0c;\u4e5f\u53ef\u4ee5\u662f\u670d\u52a1\u7aef\u4e3b\u52a8\u53d1\u3002 \u4e24\u8005\u7684\u4f7f\u7528\u573a\u666f\u6709\u4e0d\u540c&#xff1a;\u77ed\u8fde\u63a5\u9002\u7528\u4e8e\u5ba2\u6237\u7aef\u8bf7\u6c42\u9891\u7387\u4e0d\u9ad8\u7684\u573a\u666f&#xff0c;\u5982\u6d4f\u89c8\u7f51\u9875\u7b49\u3002\u957f\u8fde\u63a5\u9002\u7528\u4e8e\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u901a\u4fe1\u9891\u7e41\u7684\u573a\u666f&#xff0c;\u5982\u804a\u5929\u5ba4&#xff0c;\u5b9e\u65f6\u6e38\u620f\u7b49\u3002<\/p>\n<p>\u57fa\u4e8eBIO&#xff08;\u540c\u6b65\u963b\u585eIO&#xff09;\u7684\u957f\u8fde\u63a5\u4f1a\u4e00\u76f4\u5360\u7528\u7cfb\u7edf\u8d44\u6e90\u3002\u5bf9\u4e8e\u5e76\u53d1\u8981\u6c42\u5f88\u9ad8\u7684\u670d\u52a1\u7aef\u7cfb\u7edf\u6765\u8bf4&#xff0c;\u8fd9\u6837\u7684\u6d88\u8017\u662f\u4e0d\u80fd\u627f\u53d7\u7684\u3002 \u7531\u4e8e\u6bcf\u4e2a\u8fde\u63a5\u90fd\u9700\u8981\u4e0d\u505c\u7684\u963b\u585e\u7b49\u5f85\u63a5\u6536\u6570\u636e&#xff0c;\u6240\u4ee5\u6bcf\u4e2a\u8fde\u63a5\u90fd\u4f1a\u5728\u4e00\u4e2a\u7ebf\u7a0b\u4e2d\u8fd0\u884c\u3002 \u4e00\u6b21\u963b\u585e\u7b49\u5f85\u5bf9\u5e94\u7740\u4e00\u6b21\u8bf7\u6c42\u3001\u54cd\u5e94&#xff0c;\u4e0d\u505c\u5904\u7406\u4e5f\u5c31\u662f\u957f\u8fde\u63a5\u7684\u7279\u6027&#xff1a;\u4e00\u76f4\u4e0d\u5173\u95ed\u8fde\u63a5&#xff0c;\u4e0d\u505c\u7684\u5904\u7406\u8bf7\u6c42\u3002<\/p>\n<p>\u5b9e\u9645\u5e94\u7528\u65f6&#xff0c;\u670d\u52a1\u7aef\u4e00\u822c\u662f\u57fa\u4e8eNIO&#xff08;\u5373\u540c\u6b65\u975e\u963b\u585eIO&#xff09;\u6765\u5b9e\u73b0\u957f\u8fde\u63a5&#xff0c;\u6027\u80fd\u53ef\u4ee5\u6781\u5927\u7684\u63d0\u5347\u3002<\/p>\n<h3>4. \u5177\u4f53\u5b9e\u4f8b<\/h3>\n<p>\u793a\u4f8b\u4e00&#xff1a;\u4e00\u53d1\u4e00\u6536&#xff08;\u77ed\u8fde\u63a5&#xff09;<\/p>\n<p>\u4ee5\u4e0b\u4e3a\u4e00\u4e2a\u5ba2\u6237\u7aef\u4e00\u6b21\u6570\u636e\u53d1\u9001&#xff0c;\u548c\u670d\u52a1\u7aef\u591a\u6b21\u6570\u636e\u63a5\u6536&#xff08;\u4e00\u6b21\u53d1\u9001\u4e00\u6b21\u63a5\u6536&#xff0c;\u53ef\u4ee5\u63a5\u6536\u591a\u6b21&#xff09;&#xff0c;\u5373\u53ea\u6709\u5ba2\u6237\u7aef\u8bf7\u6c42&#xff0c;\u4f46\u6ca1\u6709\u670d\u52a1\u7aef\u54cd\u5e94\u7684\u793a\u4f8b&#xff1a;<\/p>\n<p>TCP\u670d\u52a1\u7aef<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ServerSocket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TcpServer<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u5668socket\u8981\u7ed1\u5b9a\u56fa\u5b9a\u7684\u7aef\u53e3<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1.\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u7aefServerSocket&#xff0c;\u7528\u4e8e\u6536\u53d1TCP\u62a5\u6587<\/span><br \/>\n        <span class=\"token class-name\">ServerSocket<\/span> server <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ServerSocket<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e0d\u505c\u7684\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7b49\u5f85\u5ba2\u6237\u7aef\u5efa\u7acbTCP\u8fde\u63a5&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 2.\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5&#xff0c;\u6ce8\u610f\u8be5\u65b9\u6cd5\u4e3a\u963b\u585e\u65b9\u6cd5<\/span><br \/>\n            <span class=\"token class-name\">Socket<\/span> client <span class=\"token operator\">&#061;<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aefIP&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> client<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInetAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getHostAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u7aef\u53e3\u53f7&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> client<span class=\"token punctuation\">.<\/span><span class=\"token function\">getPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 5.\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u6570\u636e&#xff0c;\u9700\u8981\u4ece\u5ba2\u6237\u7aefSocket\u4e2d\u7684\u8f93\u5165\u6d41\u83b7\u53d6<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u8bf7\u6c42&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">InputStream<\/span> is <span class=\"token operator\">&#061;<\/span> client<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e3a\u4e86\u65b9\u4fbf\u83b7\u53d6\u5b57\u7b26\u4e32\u5185\u5bb9&#xff0c;\u53ef\u4ee5\u5c06\u4ee5\u4e0a\u5b57\u8282\u6d41\u5305\u88c5\u4e3a\u5b57\u7b26\u6d41<\/span><br \/>\n            <span class=\"token class-name\">BufferedReader<\/span> br <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BufferedReader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InputStreamReader<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> line<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e00\u76f4\u8bfb\u53d6\u5230\u6d41\u7ed3\u675f&#xff1a;TCP\u662f\u57fa\u4e8e\u6d41\u7684\u6570\u636e\u4f20\u8f93&#xff0c;\u4e00\u5b9a\u8981\u5ba2\u6237\u7aef\u5173\u95edSocket\u8f93\u51fa\u6d41\u624d\u8868\u793a\u670d\u52a1\u7aef\u63a5\u6536IO\u8f93\u5165\u6d41\u7ed3\u675f<\/span><br \/>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>line <span class=\"token operator\">&#061;<\/span> br<span class=\"token punctuation\">.<\/span><span class=\"token function\">readLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>line<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n           <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token comment\">\/\/ 6.\u53cc\u65b9\u5173\u95ed\u8fde\u63a5&#xff1a;\u670d\u52a1\u7aef\u662f\u5173\u95ed\u5ba2\u6237\u7aefsocket\u8fde\u63a5<\/span><br \/>\n            client<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd0\u884c\u540e&#xff0c;\u670d\u52a1\u7aef\u5c31\u542f\u52a8\u4e86&#xff0c;\u63a7\u5236\u53f0\u8f93\u51fa\u5982\u4e0b&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023743-68103b779c2dd.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u53ef\u4ee5\u770b\u51fa&#xff0c;\u6b64\u65f6\u4ee3\u7801\u662f\u963b\u585e\u7b49\u5f85\u5728 server.accept() \u4ee3\u7801\u884c&#xff0c;\u76f4\u5230\u6709\u65b0\u7684\u5ba2\u6237\u7aef\u7533\u8bf7\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n<p>TCP\u5ba2\u6237\u7aef<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TcpClient<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aefIP\u6216\u57df\u540d<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> SERVER_HOST <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;localhost&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aefSocket\u8fdb\u7a0b\u7684\u7aef\u53e3\u53f7<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> SERVER_PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 3.\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u6d41\u5957\u63a5\u5b57Socket&#xff0c;\u5e76\u4e0e\u5bf9\u5e94IP\u7684\u4e3b\u673a\u4e0a&#xff0c;\u5bf9\u5e94\u7aef\u53e3\u7684\u8fdb\u7a0b\u5efa\u7acb\u8fde\u63a5<\/span><br \/>\n        <span class=\"token class-name\">Socket<\/span> client <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">(<\/span>SERVER_HOST<span class=\"token punctuation\">,<\/span> SERVER_PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 4.\u53d1\u9001TCP\u6570\u636e&#xff0c;\u662f\u901a\u8fc7socket\u4e2d\u7684\u8f93\u51fa\u6d41\u8fdb\u884c\u53d1\u9001<\/span><br \/>\n        <span class=\"token class-name\">OutputStream<\/span> os <span class=\"token operator\">&#061;<\/span> client<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e3a\u4e86\u65b9\u4fbf\u8f93\u51fa\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53d1\u9001\u7684\u5185\u5bb9&#xff0c;\u53ef\u4ee5\u5c06\u4ee5\u4e0a\u5b57\u8282\u6d41\u5305\u88c5\u4e3a\u5b57\u7b26\u6d41<\/span><br \/>\n        <span class=\"token class-name\">PrintWriter<\/span> pw <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">OutputStreamWriter<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 4-1.\u53d1\u9001\u6570\u636e&#xff1a;<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hello world!&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 4-2.\u6709\u7f13\u51b2\u533a\u7684IO\u64cd\u4f5c&#xff0c;\u771f\u6b63\u4f20\u8f93\u6570\u636e&#xff0c;\u9700\u8981\u5237\u65b0\u7f13\u51b2\u533a<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">flush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 7.\u53cc\u65b9\u5173\u95ed\u8fde\u63a5&#xff1a;\u5ba2\u6237\u7aef\u5173\u95edsocket\u8fde\u63a5<\/span><br \/>\n        client<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5ba2\u6237\u7aef\u542f\u52a8\u540e\u4f1a\u53d1\u9001\u4e00\u4e2a&#034;hello world!&#034; \u7684\u5b57\u7b26\u4e32\u5230\u670d\u52a1\u7aef&#xff0c;\u5728\u670d\u52a1\u7aef\u63a5\u6536\u540e&#xff0c;\u63a7\u5236\u53f0\u8f93\u51fa\u5185\u5bb9\u5982\u4e0b&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023743-68103b77c4db2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4ee5\u4e0a\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u5efa\u7acb\u7684\u4e3a\u77ed\u8fde\u63a5&#xff0c;\u6bcf\u6b21\u5ba2\u6237\u7aef\u53d1\u9001\u4e86TCP\u62a5\u6587&#xff0c;\u53ca\u670d\u52a1\u7aef\u63a5\u6536\u4e86TCP\u62a5\u6587\u540e&#xff0c;\u53cc\u65b9\u90fd\u4f1a\u5173\u95ed\u8fde\u63a5\u3002<\/p>\n<p>\u793a\u4f8b\u4e8c&#xff1a;\u8bf7\u6c42\u54cd\u5e94&#xff08;\u77ed\u8fde\u63a5&#xff09;<\/p>\n<p>\u793a\u4f8b\u4e00\u53ea\u662f\u5ba2\u6237\u7aef\u8bf7\u6c42\u548c\u670d\u52a1\u7aef\u63a5\u6536&#xff0c;\u5e76\u6ca1\u6709\u5305\u542b\u670d\u52a1\u7aef\u7684\u8fd4\u56de\u54cd\u5e94\u3002\u4ee5\u4e0b\u662f\u5bf9\u5e94\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u6539\u9020&#xff1a; \u6784\u9020\u4e00\u4e2a\u5c55\u793a\u670d\u52a1\u7aef\u672c\u5730\u67d0\u4e2a\u76ee\u5f55&#xff08;BASE_PATH&#xff09;\u7684\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6\u5217\u8868\u7684\u670d\u52a1 &#xff08;1&#xff09;\u5ba2\u6237\u7aef\u5148\u63a5\u6536\u952e\u76d8\u8f93\u5165&#xff0c;\u8868\u793a\u8981\u5c55\u793a\u7684\u76f8\u5bf9\u8def\u5f84&#xff08;\u76f8\u5bf9BASE_PATH\u7684\u8def\u5f84&#xff09; &#xff08;2&#xff09;\u53d1\u9001\u8bf7\u6c42&#xff1a;\u4f7f\u7528\u5ba2\u6237\u7aefSocket\u7684\u8f93\u51fa\u6d41\u53d1\u9001TCP\u62a5\u6587\u3002\u5373\u8f93\u5165\u7684\u76f8\u5bf9\u8def\u5f84\u3002 &#xff08;3&#xff09;\u670d\u52a1\u7aef\u63a5\u6536\u5e76\u5904\u7406\u8bf7\u6c42&#xff1a;\u4f7f\u7528\u670d\u52a1\u7aefSocket\u7684\u8f93\u5165\u6d41\u6765\u63a5\u6536\u8bf7\u6c42\u62a5\u6587&#xff0c;\u6839\u636e\u8bf7\u6c42\u7684\u8def\u5f84&#xff0c;\u5217\u51fa\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6\u53ca\u5b50\u6587\u4ef6\u5939\u3002 &#xff08;4&#xff09;\u670d\u52a1\u7aef\u8fd4\u56de\u54cd\u5e94&#xff1a;\u4f7f\u7528\u670d\u52a1\u7aefSocket\u7684\u8f93\u51fa\u6d41\u6765\u53d1\u9001\u54cd\u5e94\u62a5\u6587\u3002\u5373\u904d\u5386\u5b50\u6587\u4ef6\u548c\u5b50\u6587\u4ef6\u5939&#xff0c;\u6bcf\u4e2a\u6587\u4ef6\u540d\u4e00\u884c&#xff0c;\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002 &#xff08;5&#xff09;\u5ba2\u6237\u7aef\u63a5\u6536\u54cd\u5e94&#xff1a;\u4f7f\u7528\u5ba2\u6237\u7aefSocket\u7684\u8f93\u5165\u6d41\u6765\u63a5\u6536\u54cd\u5e94\u62a5\u6587\u3002\u7b80\u5355\u7684\u6253\u5370\u8f93\u51fa\u6240\u6709\u7684\u54cd\u5e94\u5185\u5bb9&#xff0c;\u5373\u6587\u4ef6\u5217\u8868<\/p>\n<p>\u4ee5\u4e0b\u4e3a\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u4ee3\u7801&#xff1a;<\/p>\n<p>TCP\u670d\u52a1\u7aef<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo2<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ServerSocket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TcpServer<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u5668socket\u8981\u7ed1\u5b9a\u56fa\u5b9a\u7684\u7aef\u53e3<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u672c\u5730\u6587\u4ef6\u76ee\u5f55\u8981\u5c55\u793a\u7684\u6839\u8def\u5f84<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> BASE_PATH <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;E:\/TMP&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1.\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u7aefServerSocket&#xff0c;\u7528\u4e8e\u6536\u53d1TCP\u62a5\u6587<\/span><br \/>\n        <span class=\"token class-name\">ServerSocket<\/span> server <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ServerSocket<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e0d\u505c\u7684\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7b49\u5f85\u5ba2\u6237\u7aef\u5efa\u7acbTCP\u8fde\u63a5&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 2.\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5&#xff0c;\u6ce8\u610f\u8be5\u65b9\u6cd5\u4e3a\u963b\u585e\u65b9\u6cd5<\/span><br \/>\n            <span class=\"token class-name\">Socket<\/span> socket <span class=\"token operator\">&#061;<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aefIP&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInetAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getHostAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u7aef\u53e3\u53f7&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 5.\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u6570\u636e&#xff0c;\u9700\u8981\u4ece\u5ba2\u6237\u7aefSocket\u4e2d\u7684\u8f93\u5165\u6d41\u83b7\u53d6<\/span><br \/>\n            <span class=\"token class-name\">InputStream<\/span> is <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e3a\u4e86\u65b9\u4fbf\u83b7\u53d6\u5b57\u7b26\u4e32\u5185\u5bb9&#xff0c;\u53ef\u4ee5\u5c06\u4ee5\u4e0a\u5b57\u8282\u6d41\u5305\u88c5\u4e3a\u5b57\u7b26\u6d41<\/span><br \/>\n            <span class=\"token class-name\">BufferedReader<\/span> br <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BufferedReader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InputStreamReader<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u5ba2\u6237\u7aef\u8bf7\u6c42\u53ea\u53d1\u9001\u4e00\u884c\u6570\u636e&#xff0c;\u6211\u4eec\u4e5f\u53ea\u9700\u8981\u8bfb\u53d6\u4e00\u884c<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> request <span class=\"token operator\">&#061;<\/span> br<span class=\"token punctuation\">.<\/span><span class=\"token function\">readLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 6.\u6839\u636e\u8bf7\u6c42\u5904\u7406\u4e1a\u52a1&#xff1a;\u672c\u5730\u76ee\u5f55\u6839\u8def\u5f84&#043;\u8bf7\u6c42\u8def\u5f84&#xff0c;\u4f5c\u4e3a\u8981\u5c55\u793a\u7684\u76ee\u5f55&#xff0c;\u5217\u51fa\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6<\/span><br \/>\n            <span class=\"token comment\">\/\/\u8bf7\u6c42\u7684\u6587\u4ef6\u5217\u8868\u76ee\u5f55<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u6587\u4ef6\u5217\u8868\u8def\u5f84\u4e3a&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> BASE_PATH <span class=\"token operator\">&#043;<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">File<\/span> dir <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">(<\/span>BASE_PATH <span class=\"token operator\">&#043;<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/\u83b7\u53d6\u4e0b\u4e00\u7ea7\u5b50\u6587\u4ef6&#xff0c;\u5b50\u6587\u4ef6\u5939<\/span><br \/>\n            <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> children <span class=\"token operator\">&#061;<\/span> dir<span class=\"token punctuation\">.<\/span><span class=\"token function\">listFiles<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 7.\u8fd4\u56de\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef&#xff1a;\u901a\u8fc7\u5ba2\u6237\u7aefsocket\u4e2d\u7684\u8f93\u51fa\u6d41\u53d1\u9001\u54cd\u5e94\u6570\u636e<\/span><br \/>\n            <span class=\"token class-name\">OutputStream<\/span> os <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e3a\u4e86\u65b9\u4fbf\u8f93\u51fa\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53d1\u9001\u7684\u5185\u5bb9&#xff0c;\u53ef\u4ee5\u5c06\u4ee5\u4e0a\u5b57\u8282\u6d41\u5305\u88c5\u4e3a\u5b57\u7b26\u6d41<\/span><br \/>\n            <span class=\"token class-name\">PrintWriter<\/span> pw <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">OutputStreamWriter<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 7-1.\u8fd4\u56de\u7684\u54cd\u5e94\u5185\u5bb9&#xff1a;\u6bcf\u4e2a\u6587\u4ef6\u53ca\u76ee\u5f55\u540d\u79f0\u4e3a\u4e00\u884c<\/span><br \/>\n                <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>children <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">File<\/span> child <span class=\"token operator\">:<\/span> children<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>child<span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token comment\">\/\/ 7-2.\u6709\u7f13\u51b2\u533a\u7684IO\u64cd\u4f5c&#xff0c;\u771f\u6b63\u4f20\u8f93\u6570\u636e&#xff0c;\u9700\u8981\u5237\u65b0\u7f13\u51b2\u533a<\/span><br \/>\n            pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">flush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 7-3.\u53cc\u65b9\u5173\u95ed\u8fde\u63a5&#xff1a;\u670d\u52a1\u7aef\u662f\u5173\u95ed\u5ba2\u6237\u7aefsocket\u8fde\u63a5<\/span><br \/>\n            socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>TCP\u5ba2\u6237\u7aef<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo2<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Scanner<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TcpClient<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aefIP\u6216\u57df\u540d<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> SERVER_HOST <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;localhost&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aefSocket\u8fdb\u7a0b\u7684\u7aef\u53e3\u53f7<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> SERVER_PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u51c6\u5907\u8981\u53d1\u9001\u7684\u6570\u636e&#xff1a;\u8fd9\u91cc\u8c03\u6574\u4e3a\u952e\u76d8\u8f93\u5165\u4f5c\u4e3a\u53d1\u9001\u7684\u5185\u5bb9<\/span><br \/>\n        <span class=\"token class-name\">Scanner<\/span> scanner <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Scanner<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165\u8981\u5c55\u793a\u7684\u76ee\u5f55&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u6bcf\u8f93\u5165\u65b0\u884c&#xff08;\u56de\u8f66&#xff09;&#xff0c;\u5c31\u4f5c\u4e3a\u53d1\u9001\u7684TCP\u8bf7\u6c42\u62a5\u6587<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> request <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 3.\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u6d41\u5957\u63a5\u5b57Socket&#xff0c;\u5e76\u4e0e\u5bf9\u5e94IP\u7684\u4e3b\u673a\u4e0a&#xff0c;\u5bf9\u5e94\u7aef\u53e3\u7684\u8fdb\u7a0b\u5efa\u7acb\u8fde\u63a5<\/span><br \/>\n            <span class=\"token class-name\">Socket<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">(<\/span>SERVER_HOST<span class=\"token punctuation\">,<\/span> SERVER_PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 4.\u53d1\u9001TCP\u6570\u636e&#xff0c;\u662f\u901a\u8fc7socket\u4e2d\u7684\u8f93\u51fa\u6d41\u8fdb\u884c\u53d1\u9001<\/span><br \/>\n            <span class=\"token class-name\">OutputStream<\/span> os <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e3a\u4e86\u65b9\u4fbf\u8f93\u51fa\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53d1\u9001\u7684\u5185\u5bb9&#xff0c;\u53ef\u4ee5\u5c06\u4ee5\u4e0a\u5b57\u8282\u6d41\u5305\u88c5\u4e3a\u5b57\u7b26\u6d41<\/span><br \/>\n            <span class=\"token class-name\">PrintWriter<\/span> pw <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">OutputStreamWriter<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 4-1.\u53d1\u9001\u6570\u636e&#xff1a;<\/span><br \/>\n            pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 4-2.\u6709\u7f13\u51b2\u533a\u7684IO\u64cd\u4f5c&#xff0c;\u771f\u6b63\u4f20\u8f93\u6570\u636e&#xff0c;\u9700\u8981\u5237\u65b0\u7f13\u51b2\u533a<\/span><br \/>\n            pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">flush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 8.\u63a5\u6536\u8fd4\u56de\u7684\u54cd\u5e94\u6570\u636e&#xff1a;\u901a\u8fc7socket\u4e2d\u7684\u8f93\u5165\u6d41\u83b7\u53d6<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u63a5\u6536\u5230\u670d\u52a1\u7aef\u54cd\u5e94&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">InputStream<\/span> is <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e3a\u4e86\u65b9\u4fbf\u83b7\u53d6\u5b57\u7b26\u4e32\u5185\u5bb9&#xff0c;\u53ef\u4ee5\u5c06\u4ee5\u4e0a\u5b57\u8282\u6d41\u5305\u88c5\u4e3a\u5b57\u7b26\u6d41<\/span><br \/>\n            <span class=\"token class-name\">BufferedReader<\/span> br <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BufferedReader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InputStreamReader<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> line<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u4e00\u76f4\u8bfb\u53d6\u5230\u6d41\u7ed3\u675f&#xff1a;TCP\u662f\u57fa\u4e8e\u6d41\u7684\u6570\u636e\u4f20\u8f93&#xff0c;\u4e00\u5b9a\u8981\u670d\u52a1\u7aef\u5173\u95edSocket\u8f93\u51fa\u6d41\u624d\u8868\u793a\u5ba2\u6237\u7aef\u63a5\u6536\u7684IO\u8f93\u5165\u6d41\u7ed3\u675f<\/span><br \/>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>line <span class=\"token operator\">&#061;<\/span> br<span class=\"token punctuation\">.<\/span><span class=\"token function\">readLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">!&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>line<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n           <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token comment\">\/\/ 9.\u53cc\u65b9\u5173\u95ed\u8fde\u63a5&#xff1a;\u5ba2\u6237\u7aef\u5173\u95edsocket\u8fde\u63a5<\/span><br \/>\n            socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5ba2\u6237\u7aef\u542f\u52a8\u540e\u4f1a\u7b49\u5f85\u8f93\u5165\u8981\u5c55\u793a\u7684\u8def\u5f84&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023743-68103b77f0836.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u5728\u8f93\u5165\u60f3\u67e5\u770b\u7684\u76ee\u5f55\u8def\u5f84\u540e&#xff0c;\u4f1a\u63a5\u6536\u5e76\u6253\u5370\u670d\u52a1\u7aef\u54cd\u5e94\u7684\u6587\u4ef6\u5217\u8868\u6570\u636e&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023744-68103b7824ef7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u6b64\u65f6\u670d\u52a1\u7aef\u4e5f\u4f1a\u6253\u5370\u63a5\u6536\u5230\u7684\u5ba2\u6237\u7aef\u8bf7\u6c42\u6570\u636e&#xff1a; <img decoding=\"async\" src=\"2025-04-29r1ml1o3bqwz.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u76ee\u524dTCP\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u5b9e\u73b0\u7684\u529f\u80fd\u548cUDP\u5dee\u4e0d\u591a&#xff0c;\u4f46\u90fd\u5b58\u5728\u51e0\u4e2a\u95ee\u9898&#xff1a;<\/p>\n<p>\u5bf9\u4e8e\u670d\u52a1\u7aef\u6765\u8bf4&#xff0c;\u5904\u7406\u4e00\u6b21\u8bf7\u6c42\u5e76\u8fd4\u56de\u54cd\u5e94\u540e&#xff0c;\u624d\u80fd\u518d\u6b21\u5904\u7406\u4e0b\u4e00\u6b21\u8bf7\u6c42\u548c\u54cd\u5e94&#xff0c;\u6548\u7387\u662f\u6bd4\u8f83\u4f4e\u7684\u3002\u8fd9\u4e2a\u95ee\u9898\u6bd4\u8f83\u597d\u89e3\u51b3&#xff1a;\u53ef\u4ee5\u4f7f\u7528\u591a\u7ebf\u7a0b&#xff0c;\u6bcf\u6b21\u7684\u8bf7\u6c42\u4e0e\u54cd\u5e94\u90fd\u5728\u7ebf\u7a0b\u4e2d\u5904\u7406\u3002\u8fd9\u6837\u591a\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u8bdd&#xff0c;\u53ef\u4ee5\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e2d\u5e76\u53d1\u5e76\u884c\u7684\u6267\u884c\u3002<\/p>\n<p>\u670d\u52a1\u7aef\u89e3\u6790\u8bf7\u6c42&#xff0c;\u662f\u53ea\u8bfb\u53d6\u4e86\u4e00\u884c&#xff0c;\u800c\u5ba2\u6237\u7aef\u89e3\u6790\u54cd\u5e94&#xff0c;\u662f\u4e00\u76f4\u8bfb\u53d6\u5230\u6d41\u7ed3\u675f\u3002\u53ef\u4ee5\u60f3\u60f3\u4e3a\u4ec0\u4e48\u89e3\u6790\u8bf7\u6c42\u65f6&#xff0c;\u6ca1\u6709\u8bfb\u53d6\u5230\u6d41\u7ed3\u675f&#xff1f; \u76ee\u524d\u7684\u4e1a\u52a1&#xff0c;\u53cc\u65b9\u90fd\u5df2\u7ea6\u5b9a\u597d\u4e1a\u52a1\u662f\u5c55\u793a\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u5217\u8868&#xff0c;\u4e14\u90fd\u53ea\u9700\u8981\u4e00\u79cd\u6570\u636e&#xff1a;\u8bf7\u6c42\u4f20\u8f93\u7684\u6570\u636e\u4ee3\u8868\u8981\u5c55\u793a\u7684\u76ee\u5f55&#xff1b;\u54cd\u5e94\u4f20\u8f93\u7684\u6570\u636e\u4ee3\u8868\u6587\u4ef6\u5217\u8868&#xff1a;\u6bcf\u4e00\u884c\u4e3a\u4e00\u4e2a\u6587\u4ef6\u540d\u3002\u5982\u8981\u63d0\u4f9b\u66f4\u591a\u7684\u4e1a\u52a1&#xff0c;\u5982\u6587\u4ef6\u91cd\u547d\u540d&#xff0c;\u6587\u4ef6\u5220\u9664\u7b49\u64cd\u4f5c\u65f6&#xff0c;\u5c31\u4e0d\u80fd\u4e86\u3002\u6b64\u65f6\u5c31\u9700\u8981\u63d0\u4f9b\u66f4\u591a\u7684\u5b57\u6bb5\u6765\u6807\u8bc6\u3002\u4e00\u822c\u6211\u4eec\u9700\u8981\u8bbe\u8ba1\u66f4\u5f3a\u5927\u7684\u534f\u8bae\u3002<\/p>\n<h2>\u4e94 \u3001 \u534f\u8bae<\/h2>\n<h3>1. \u56de\u987e\u5e76\u7406\u89e3\u4e3a\u4ec0\u4e48\u9700\u8981\u534f\u8bae<\/h3>\n<p>\u4ee5\u4e0a\u6211\u4eec\u5b9e\u73b0\u7684UDP\u548cTCP\u6570\u636e\u4f20\u8f93&#xff0c;\u9664\u4e86UDP\u548cTCP\u534f\u8bae\u5916&#xff0c;\u7a0b\u5e8f\u8fd8\u5b58\u5728\u5e94\u7528\u5c42\u81ea\u5b9a\u4e49\u8bae&#xff0c;\u53ef\u4ee5\u60f3\u60f3\u5206\u522b\u90fd\u662f\u4ec0\u4e48\u6837\u7684\u534f\u8bae\u683c\u5f0f\u3002<\/p>\n<p>\u5bf9\u4e8e\u5ba2\u6237\u7aef\u53ca\u670d\u52a1\u7aef\u5e94\u7528\u7a0b\u5e8f\u6765\u8bf4&#xff0c;\u8bf7\u6c42\u548c\u54cd\u5e94&#xff0c;\u9700\u8981\u7ea6\u5b9a\u4e00\u81f4\u7684\u6570\u636e\u683c\u5f0f&#xff1a;<\/p>\n<p>\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u548c\u670d\u52a1\u7aef\u89e3\u6790\u8bf7\u6c42\u8981\u4f7f\u7528\u76f8\u540c\u7684\u6570\u636e\u683c\u5f0f\u3002 \u670d\u52a1\u7aef\u8fd4\u56de\u54cd\u5e94\u548c\u5ba2\u6237\u7aef\u89e3\u6790\u54cd\u5e94\u4e5f\u8981\u4f7f\u7528\u76f8\u540c\u7684\u6570\u636e\u683c\u5f0f\u3002 \u8bf7\u6c42\u683c\u5f0f\u548c\u54cd\u5e94\u683c\u5f0f\u53ef\u4ee5\u76f8\u540c&#xff0c;\u4e5f\u53ef\u4ee5\u4e0d\u540c\u3002 \u7ea6\u5b9a\u76f8\u540c\u7684\u6570\u636e\u683c\u5f0f&#xff0c;\u4e3b\u8981\u76ee\u7684\u662f\u4e3a\u4e86\u8ba9\u63a5\u6536\u7aef\u5728\u89e3\u6790\u7684\u65f6\u5019\u660e\u786e\u5982\u4f55\u89e3\u6790\u6570\u636e\u4e2d\u7684\u5404\u4e2a\u5b57\u6bb5\u3002 \u53ef\u4ee5\u4f7f\u7528\u77e5\u540d\u534f\u8bae&#xff08;\u5e7f\u6cdb\u4f7f\u7528\u7684\u534f\u8bae\u683c\u5f0f&#xff09;&#xff0c;\u5982\u679c\u60f3\u81ea\u5df1\u7ea6\u5b9a\u6570\u636e\u683c\u5f0f&#xff0c;\u5c31\u5c5e\u4e8e\u81ea\u5b9a\u4e49\u534f\u8bae\u3002<\/p>\n<h3>2. \u5c01\u88c5\/\u5206\u7528 vs \u5e8f\u5217\u5316\/\u53cd\u5e8f\u5217\u5316<\/h3>\n<p>\u4e00\u822c\u6765\u8bf4&#xff0c;\u5728\u7f51\u7edc\u6570\u636e\u4f20\u8f93\u4e2d&#xff0c;\u53d1\u9001\u7aef\u5e94\u7528\u7a0b\u5e8f&#xff0c;\u53d1\u9001\u6570\u636e\u65f6\u7684\u6570\u636e\u8f6c\u6362&#xff08;\u5982java\u4e00\u822c\u5c31\u662f\u5c06\u5bf9\u8c61\u8f6c\u6362\u4e3a\u67d0\u79cd\u534f\u8bae\u683c\u5f0f&#xff09;&#xff0c;\u5373\u5bf9\u53d1\u9001\u6570\u636e\u65f6\u7684\u6570\u636e\u5305\u88c5\u52a8\u4f5c\u6765\u8bf4&#xff1a;<\/p>\n<p>\u5982\u679c\u662f\u4f7f\u7528\u77e5\u540d\u534f\u8bae&#xff0c;\u8fd9\u4e2a\u52a8\u4f5c\u4e5f\u79f0\u4e3a\u5c01\u88c5 \u5982\u679c\u662f\u4f7f\u7528\u5c0f\u4f17\u534f\u8bae&#xff08;\u5305\u62ec\u81ea\u5b9a\u4e49\u534f\u8bae&#xff09;&#xff0c;\u8fd9\u4e2a\u52a8\u4f5c\u4e5f\u79f0\u4e3a\u5e8f\u5217\u5316&#xff0c;\u4e00\u822c\u662f\u5c06\u7a0b\u5e8f\u4e2d\u7684\u5bf9\u8c61\u8f6c\u6362\u4e3a\u7279\u5b9a\u7684\u6570\u636e\u683c\u5f0f\u3002<\/p>\n<p>\u63a5\u6536\u7aef\u5e94\u7528\u7a0b\u5e8f&#xff0c;\u63a5\u6536\u6570\u636e\u65f6\u7684\u6570\u636e\u8f6c\u6362&#xff0c;\u5373\u5bf9\u63a5\u6536\u6570\u636e\u65f6\u7684\u6570\u636e\u89e3\u6790\u52a8\u4f5c\u6765\u8bf4&#xff1a;<\/p>\n<p>\u5982\u679c\u662f\u4f7f\u7528\u77e5\u540d\u534f\u8bae&#xff0c;\u8fd9\u4e2a\u52a8\u4f5c\u4e5f\u79f0\u4e3a\u5206\u7528 \u5982\u679c\u662f\u4f7f\u7528\u5c0f\u4f17\u534f\u8bae&#xff08;\u5305\u62ec\u81ea\u5b9a\u4e49\u534f\u8bae&#xff09;&#xff0c;\u8fd9\u4e2a\u52a8\u4f5c\u4e5f\u79f0\u4e3a\u53cd\u5e8f\u5217\u5316&#xff0c;\u4e00\u822c\u662f\u57fa\u4e8e\u63a5\u6536\u6570\u636e\u7279\u5b9a\u7684\u683c\u5f0f&#xff0c;\u8f6c\u6362\u4e3a\u7a0b\u5e8f\u4e2d\u7684\u5bf9\u8c61<\/p>\n<p>\u5982\u4f55\u8bbe\u8ba1\u534f\u8bae&#xff1a;<\/p>\n<p>\u5bf9\u4e8e\u534f\u8bae\u6765\u8bf4&#xff0c;\u91cd\u70b9\u9700\u8981\u7ea6\u5b9a\u597d\u5982\u4f55\u89e3\u6790&#xff0c;\u4e00\u822c\u662f\u6839\u636e\u5b57\u6bb5\u7684\u7279\u70b9\u6765\u8bbe\u8ba1\u534f\u8bae&#xff1a; \u5bf9\u4e8e\u5b9a\u957f\u7684\u5b57\u6bb5&#xff1a;\u53ef\u4ee5\u57fa\u4e8e\u957f\u5ea6\u7ea6\u5b9a&#xff0c;\u5982int\u5b57\u6bb5&#xff0c;\u7ea6\u5b9a\u597d4\u4e2a\u5b57\u8282\u5373\u53ef \u5bf9\u4e8e\u4e0d\u5b9a\u957f\u7684\u5b57\u6bb5&#xff1a;\u53ef\u4ee5\u7ea6\u5b9a\u5b57\u6bb5\u4e4b\u95f4\u7684\u95f4\u9694\u7b26&#xff0c;\u6216\u6700\u540e\u4e00\u4e2a\u5b57\u6bb5\u7684\u7ed3\u675f\u7b26&#xff0c;\u5982\u6362\u884c\u7b26\u95f4\u9694&#xff0c;\\\\3\u7b26\u53f7\u7ed3\u675f\u7b49\u7b49 \u9664\u4e86\u8be5\u5b57\u6bb5\u201c\u6570\u636e\u201d\u672c\u8eab&#xff0c;\u518d\u52a0\u4e00\u4e2a\u957f\u5ea6\u5b57\u6bb5&#xff0c;\u7528\u6765\u6807\u8bc6\u8be5\u201c\u6570\u636e\u201d\u957f\u5ea6&#xff1b;\u5373\u603b\u5171\u4f7f\u7528\u4e24\u4e2a\u5b57\u6bb5&#xff1a;<\/p>\n<p>\u201c\u6570\u636e\u201d\u5b57\u6bb5\u672c\u8eab&#xff0c;\u4e0d\u5b9a\u957f&#xff0c;\u9700\u8981\u901a\u8fc7\u201c\u957f\u5ea6\u201d\u5b57\u6bb5\u6765\u89e3\u6790&#xff1b; \u201c\u957f\u5ea6\u201d\u5b57\u6bb5&#xff0c;\u6807\u8bc6\u8be5\u201c\u6570\u636e\u201d\u7684\u957f\u5ea6&#xff0c;\u5373\u7528\u4e8e\u8f85\u52a9\u89e3\u6790\u201c\u6570\u636e\u201d\u5b57\u6bb5&#xff1b;<\/p>\n<p>\u793a\u4f8b\u4e09&#xff1a;\u591a\u7ebf\u7a0b&#043;\u81ea\u5b9a\u4e49\u534f\u8bae<\/p>\n<p>\u4ee5\u4e0b\u6211\u4eec\u5c06\u793a\u4f8b\u4e8c\u7684\u4e1a\u52a1\u505a\u4ee5\u4e0b\u6269\u5c55&#xff1a; \u63d0\u4f9b\u591a\u79cd\u64cd\u4f5c&#xff1a;\u5c55\u793a\u76ee\u5f55\u4e0b\u6587\u4ef6\u5217\u8868&#xff0c;\u6587\u4ef6\u91cd\u547d\u540d&#xff0c;\u5220\u9664\u6587\u4ef6&#xff0c;\u4e0a\u4f20\u6587\u4ef6&#xff0c;\u4e0b\u8f7d\u6587\u4ef6 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\u6570\u636e\\\\3<\/p>\n<p>\u8bf4\u660e\u5982\u4e0b&#xff1a;<\/p>\n<p>\u4ee5\u4e0a\u603b\u5171\u5305\u542b3\u4e2a\u5b57\u6bb5&#xff0c;\u524d2\u4e2a\u5b57\u6bb5\u9700\u8981\u6309\u6362\u884c\u7b26\u8bfb\u53d6&#xff0c;\u6700\u540e\u4e00\u4e2a\u5b57\u6bb5\u9700\u8981\u6309\u7ed3\u675f\u7b26\u8bfb\u53d6 \u8bf7\u6c42\u7c7b\u578b\u6807\u8bc6\u662f\u4ec0\u4e48\u64cd\u4f5c&#xff1a;\u5c55\u793a\u76ee\u5f55\u4e0b\u6587\u4ef6\u5217\u8868&#xff0c;\u6587\u4ef6\u91cd\u547d\u540d&#xff0c;\u5220\u9664\u6587\u4ef6&#xff0c;\u4e0a\u4f20\u6587\u4ef6&#xff0c;\u4e0b\u8f7d\u6587\u4ef6 \u91cd\u547d\u540d\u3001\u4e0a\u4f20\u6587\u4ef6\u64cd\u4f5c&#xff0c;\u9700\u8981\u201c\u6570\u636e\u201d\u5b57\u6bb5&#xff0c;\u5176\u4ed6\u64cd\u4f5c\u53ef\u4ee5\u7f6e\u4e3a\u7a7a\u5b57\u7b26\u4e32 \u201c\u6570\u636e\u201d\u5b57\u6bb5\u4e3a\u6700\u540e\u4e00\u4e2a\u5b57\u6bb5&#xff0c;\u4f7f\u7528\\\\3\u7ed3\u675f\u7b26&#xff0c;\u8fd9\u6837\u5728\u6570\u636e\u672c\u8eab\u6709\u6362\u884c\u7b26\u4e5f\u80fd\u6b63\u786e\u5904\u7406<\/p>\n<p>\u4ee5\u4e0b\u4e3a\u54cd\u5e94\u6570\u636e\u7684\u534f\u8bae\u683c\u5f0f&#xff1a;<\/p>\n<p>\u72b6\u6001\u7801&#xff08;\u6807\u8bc6\u662f\u5426\u64cd\u4f5c\u6210\u529f&#xff09; \u6570\u636e&#xff08;\u5c55\u793a\u5217\u8868\u65f6&#xff0c;\u8fd4\u56de\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u5217\u8868&#xff0c;\u6216\u4e0b\u8f7d\u6587\u4ef6\u7684\u6570\u636e&#xff09;\\\\3<\/p>\n<p>\u4ee5\u4e0b\u4e3a\u5c55\u793a\u6587\u4ef6\u5217\u8868\u64cd\u4f5c\u7684\u81ea\u5b9a\u4e49\u534f\u8bae&#xff08;\u8bf7\u6c42\u3001\u54cd\u5e94\u683c\u5f0f&#xff09;<\/p>\n<p>\u4ee5\u4e0b\u64cd\u4f5c\u5c06\u5c55\u793a\u670d\u52a1\u7aef\u6839\u76ee\u5f55\u4e0b\u7684\u5b50\u6587\u4ef6\u53ca\u5b50\u6587\u4ef6\u5939<\/p>\n<p><img decoding=\"async\" src=\"2025-04-29jqwyk4sf2fp.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u8bf7\u6c42\u6570\u636e\u683c\u5f0f\u5982\u4e0b&#xff1a; 1 \/ \\\\3 \u54cd\u5e94\u6570\u636e\u683c\u5f0f\u5982\u4e0b&#xff1a; 200 \\\\1 \\\\2 \\\\3 \\\\1.txt \\\\2.txt\\\\3 \u4ee5\u4e0b\u4e3a\u4e0a\u4f20\u6587\u4ef6\u64cd\u4f5c\u7684\u81ea\u5b9a\u4e49\u534f\u8bae&#xff08;\u8bf7\u6c42\u3001\u54cd\u5e94\u683c\u5f0f&#xff09; \u9700\u8981\u5148\u5728\u5ba2\u6237\u7aef\u6307\u5b9a\u4e0a\u4f20\u7684\u670d\u52a1\u7aef\u76ee\u5f55&#xff0c;\u53ca\u5ba2\u6237\u7aef\u8981\u4e0a\u4f20\u7684\u6587\u4ef6\u8def\u5f84&#xff0c;\u4ee5\u4e0b\u64cd\u4f5c\u5c06\u4f1a\u628a\u5ba2\u6237\u7aefMain.java \u6587\u4ef6\u5185\u5bb9\u4e0a\u4f20\u5230\u670d\u52a1\u7aef\u6839\u76ee\u5f55 E:\/TMP \u4e0b\u7684 \/1 \u76ee\u5f55\u4e0b<\/p>\n<p><img decoding=\"async\" src=\"2025-04-29szpi2pznepz.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u8bf7\u6c42\u6570\u636e\u683c\u5f0f\u5982\u4e0b&#xff1a; 4 \/1 package org.example; public class Main { \u2026 } \\\\3<\/p>\n<p>\u54cd\u5e94\u6570\u636e\u683c\u5f0f\u5982\u4e0b&#xff1a;<\/p>\n<p>200 \\\\3<\/p>\n<p>\u6267\u884c\u6d41\u7a0b&#xff1a;<\/p>\n<p>\u7ea6\u5b9a\u597d\u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u6570\u636e\u683c\u5f0f&#xff0c;\u4e5f\u5c31\u662f\u5e94\u7528\u5c42\u534f\u8bae&#xff0c;\u5927\u5bb6\u6309\u7167\u7ea6\u5b9a\u597d\u7684\u683c\u5f0f\u6765\u53d1\u9001\u548c\u63a5\u6536&#xff0c;\u4ee5\u4e0b\u4e3a\u6267\u884c\u6d41\u7a0b&#xff1a; <img decoding=\"async\" src=\"2025-04-29kv21vxccjf4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4ee3\u7801\u5b9e\u73b0\u5982\u4e0b&#xff1a; \u8bf7\u6c42\u7c7b \u5148\u6309\u7167\u7ea6\u5b9a\u7684\u8bf7\u6c42\u534f\u8bae\u5c01\u88c5\u8bf7\u6c42\u7c7b&#xff1a; \u6bcf\u4e2a\u5b57\u6bb5\u4e3a\u4e00\u4e2a\u5c5e\u6027&#xff1a;\u64cd\u4f5c\u7c7b\u578b&#xff0c;\u64cd\u4f5c\u8def\u5f84&#xff0c;\u6570\u636e \u5b8c\u6210\u670d\u52a1\u7aef\u89e3\u6790\u8bf7\u6c42\u5c01\u88c5&#xff1a;\u6309\u7ea6\u5b9a\u7684\u65b9\u5f0f\u8bfb&#xff0c;\u5148\u6309\u884c\u8bfb\u53d6\u524d2\u4e2a\u5b57\u6bb5&#xff0c;\u518d\u6309\u7ed3\u675f\u7b26\u8bfb\u7b2c3\u4e2a\u5b57\u6bb5 \u5b8c\u6210\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u5c01\u88c5&#xff1a;\u6309\u7ea6\u5b9a\u7684\u65b9\u5f0f\u5199&#xff0c;\u524d2\u4e2a\u5b57\u6bb5\u6309\u884c\u8f93\u51fa&#xff0c;\u7b2c3\u4e2a\u5b57\u6bb5\u4ee5\\\\3\u7ed3\u675f<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo3<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ArrayList<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Request<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u64cd\u4f5c\u7c7b\u578b&#xff1a;1&#xff08;\u5c55\u793a\u76ee\u5f55\u6587\u4ef6\u5217\u8868&#xff09;&#xff0c;2&#xff08;\u6587\u4ef6\u91cd\u547d\u540d&#xff09;&#xff0c;3&#xff08;\u5220\u9664\u6587\u4ef6&#xff09;&#xff0c;4&#xff08;\u4e0a\u4f20\u6587\u4ef6&#xff09;&#xff0c;5&#xff08;\u4e0b\u8f7d<\/span><br \/>\n\u6587\u4ef6&#xff09;<br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Integer<\/span> type<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u64cd\u4f5c\u7684\u76ee\u5f55\u8def\u5f84<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> url<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aef\u89e3\u6790\u8bf7\u6c42\u65f6&#xff1a;\u6839\u636e\u7ea6\u5b9a\u597d\u7684\u683c\u5f0f\u6765\u89e3\u6790<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Request<\/span> <span class=\"token function\">serverParse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InputStream<\/span> is<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">BufferedReader<\/span> br <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BufferedReader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InputStreamReader<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">Request<\/span> request <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Request<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u524d2\u884c\u5206\u522b\u4e3a\u64cd\u4f5c\u7c7b\u578b\u548c\u64cd\u4f5c\u8def\u5f84<\/span><br \/>\n        request<span class=\"token punctuation\">.<\/span>type <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parseInt<\/span><span class=\"token punctuation\">(<\/span>br<span class=\"token punctuation\">.<\/span><span class=\"token function\">readLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        request<span class=\"token punctuation\">.<\/span>url <span class=\"token operator\">&#061;<\/span> br<span class=\"token punctuation\">.<\/span><span class=\"token function\">readLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u4f7f\u7528list\u4fdd\u5b58\u5b57\u7b26<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Character<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> list <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u6570\u636e&#xff1a;\u5faa\u73af\u8bfb\u53d6<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/\u4e00\u4e2a\u5b57\u7b26\u4e00\u4e2a\u5b57\u7b26\u7684\u8bfb<\/span><br \/>\n            <span class=\"token keyword\">char<\/span> c <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span><span class=\"token punctuation\">)<\/span> br<span class=\"token punctuation\">.<\/span><span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/\u4e00\u76f4\u8bfb\u53d6\u5230\u7ed3\u675f\u7b26\\\\3<\/span><br \/>\n            <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>c <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#039;\\\\3&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            list<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token comment\">\/\/\u62fc\u63a5\u6570\u636e<\/span><br \/>\n        <span class=\"token class-name\">StringBuilder<\/span> sb <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">StringBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span> c <span class=\"token operator\">:<\/span> list<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            sb<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n        request<span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#061;<\/span> sb<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> request<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u5230\u670d\u52a1\u7aef<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">clientWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">OutputStream<\/span> os<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">PrintWriter<\/span> pw <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintWriter<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>type<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token operator\">&#043;<\/span><span class=\"token string\">&#034;\\\\3&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 4-2.\u6709\u7f13\u51b2\u533a\u7684IO\u64cd\u4f5c&#xff0c;\u771f\u6b63\u4f20\u8f93\u6570\u636e&#xff0c;\u9700\u8981\u5237\u65b0\u7f13\u51b2\u533a<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">flush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;Request{&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;type&#061;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> type <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, url&#061;&#039;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> url <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\&#039;&#039;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, data&#061;&#039;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> data <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\&#039;&#039;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n  <span class=\"token string\">&#039;}&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Integer<\/span> <span class=\"token function\">getType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> type<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Integer<\/span> type<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>type <span class=\"token operator\">&#061;<\/span> type<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getUrl<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> url<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setUrl<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> url<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>url <span class=\"token operator\">&#061;<\/span> url<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u54cd\u5e94\u7c7b&#xff1a;<\/p>\n<p>\u6309\u7167\u7ea6\u5b9a\u7684\u54cd\u5e94\u534f\u8bae\u5c01\u88c5\u54cd\u5e94\u7c7b&#xff1a;<\/p>\n<p>\u6bcf\u4e2a\u5b57\u6bb5\u4e3a\u4e00\u4e2a\u5c5e\u6027&#xff1a;\u54cd\u5e94\u72b6\u6001\u7801 \u5b8c\u6210\u5ba2\u6237\u7aef\u89e3\u6790\u54cd\u5e94\u5c01\u88c5&#xff1a;\u6309\u7ea6\u5b9a\u7684\u65b9\u5f0f\u8bfb&#xff0c;\u5148\u6309\u884c\u8bfb\u53d6\u7b2c1\u4e2a\u5b57\u6bb5&#xff0c;\u518d\u6309\u7ed3\u675f\u7b26\u8bfb\u7b2c2\u4e2a\u5b57\u6bb5 \u5b8c\u6210\u670d\u52a1\u7aef\u53d1\u9001\u54cd\u5e94\u5c01\u88c5&#xff1a;\u6309\u7ea6\u5b9a\u7684\u65b9\u5f0f\u5199&#xff0c;\u7b2c1\u4e2a\u5b57\u6bb5\u6309\u884c\u8f93\u51fa&#xff0c;\u7b2c2\u4e2a\u5b57\u6bb5\u4ee5\\\\3\u7ed3\u675f<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo3<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ArrayList<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Response<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u54cd\u5e94\u7684\u72b6\u6001\u7801&#xff0c;200\u8868\u793a\u64cd\u4f5c\u6210\u529f&#xff0c;404\u8868\u793a\u6ca1\u6709\u627e\u5230\u8be5\u8def\u5f84\u7684\u6587\u4ef6\u6216\u76ee\u5f55<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> status<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u5ba2\u6237\u7aef\u89e3\u6790\u670d\u52a1\u7aef\u8fd4\u56de\u7684\u54cd\u5e94\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Response<\/span> <span class=\"token function\">clientParse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InputStream<\/span> is<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">BufferedReader<\/span> br <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">BufferedReader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">InputStreamReader<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">Response<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Response<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span>status <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parseInt<\/span><span class=\"token punctuation\">(<\/span>br<span class=\"token punctuation\">.<\/span><span class=\"token function\">readLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u4f7f\u7528list\u4fdd\u5b58\u5b57\u7b26<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Character<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> list <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u6570\u636e&#xff1a;\u5faa\u73af\u8bfb\u53d6<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/\u4e00\u4e2a\u5b57\u7b26\u4e00\u4e2a\u5b57\u7b26\u7684\u8bfb<\/span><br \/>\n            <span class=\"token keyword\">char<\/span> c <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span><span class=\"token punctuation\">)<\/span> br<span class=\"token punctuation\">.<\/span><span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/\u4e00\u76f4\u8bfb\u53d6\u5230\u7ed3\u675f\u7b26\\\\3<\/span><br \/>\n            <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>c <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#039;\\\\3&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            list<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token comment\">\/\/\u62fc\u63a5\u6570\u636e<\/span><br \/>\n        <span class=\"token class-name\">StringBuilder<\/span> sb <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">StringBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">char<\/span> c <span class=\"token operator\">:<\/span> list<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            sb<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>c<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#061;<\/span> sb<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aef\u8fd4\u56de\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">serverWrite<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">OutputStream<\/span> os<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">PrintWriter<\/span> pw <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintWriter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">OutputStreamWriter<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;UTF-8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>status<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token operator\">&#043;<\/span><span class=\"token string\">&#034;\\\\3&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 4-2.\u6709\u7f13\u51b2\u533a\u7684IO\u64cd\u4f5c&#xff0c;\u771f\u6b63\u4f20\u8f93\u6570\u636e&#xff0c;\u9700\u8981\u5237\u65b0\u7f13\u51b2\u533a<\/span><br \/>\n        pw<span class=\"token punctuation\">.<\/span><span class=\"token function\">flush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;Response{&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;status&#061;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> status <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, data&#061;&#039;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> data <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\&#039;&#039;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#039;}&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">getStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> status<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> status<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>status <span class=\"token operator\">&#061;<\/span> status<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>TCP\u670d\u52a1\u7aef \u4ee5\u4e0b\u5b8c\u6210\u670d\u52a1\u7aef\u4ee3\u7801&#xff1a; ServerSocket.accept() \u4e3a\u5efa\u7acb\u5ba2\u6237\u7aef\u670d\u52a1\u7aef\u8fde\u63a5\u7684\u65b9\u6cd5&#xff0c;\u4e3a\u63d0\u9ad8\u6548\u7387&#xff0c;\u4f7f\u7528\u591a\u7ebf\u7a0b\u5148\u8981\u89e3\u6790\u8bf7\u6c42\u6570\u636e&#xff0c;\u5373 Request \u5df2\u5c01\u88c5\u597d\u7684\u670d\u52a1\u7aef\u89e3\u6790\u8bf7\u6c42&#xff0c;\u8fd4\u56de Request \u5bf9\u8c61\u8fd4\u56de\u54cd\u5e94\u6570\u636e&#xff0c;\u9700\u8981\u6839\u636e\u4e0d\u540c\u7684\u8bf7\u6c42\u5b57\u6bb5&#xff0c;\u505a\u4e0d\u540c\u7684\u4e1a\u52a1\u5904\u7406&#xff0c;\u5e76\u8fd4\u56de\u5bf9\u5e94\u7684\u54cd\u5e94\u5185\u5bb9 \u3002\u5982\u679c\u64cd\u4f5c\u7684url\u8def\u5f84\u518d\u670d\u52a1\u7aef\u6839\u76ee\u5f55 E:\/TMP \u4e0b\u627e\u4e0d\u5230&#xff0c;\u5219\u8fd4\u56de\u54cd\u5e94\u72b6\u6001\u7801404\u3002\u6b63\u5e38\u6267\u884c\u5b8c&#xff0c;\u8fd4\u56de200\u54cd\u5e94\u72b6\u6001\u7801&#xff1b;\u8981\u6ce8\u610f\u6839\u636e\u4e0d\u540c\u64cd\u4f5c\u7c7b\u578b\u6765\u6267\u884c\u4e0d\u540c\u7684\u4e1a\u52a1<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo3<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ServerSocket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>nio<span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Files<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span>UUID<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TcpServer<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u5668socket\u8981\u7ed1\u5b9a\u56fa\u5b9a\u7684\u7aef\u53e3<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u672c\u5730\u6587\u4ef6\u76ee\u5f55\u8981\u5c55\u793a\u7684\u6839\u8def\u5f84<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> BASE_PATH <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;E:\/TMP&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1.\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u7aefServerSocket&#xff0c;\u7528\u4e8e\u6536\u53d1TCP\u62a5\u6587<\/span><br \/>\n        <span class=\"token class-name\">ServerSocket<\/span> server <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ServerSocket<\/span><span class=\"token punctuation\">(<\/span>PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4e0d\u505c\u7684\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/ 2.\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5&#xff0c;\u6ce8\u610f\u8be5\u65b9\u6cd5\u4e3a\u963b\u585e\u65b9\u6cd5<\/span><br \/>\n            <span class=\"token class-name\">Socket<\/span> socket <span class=\"token operator\">&#061;<\/span> server<span class=\"token punctuation\">.<\/span><span class=\"token function\">accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Runnable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n                <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u5efa\u7acbTCP\u8fde\u63a5&#8230;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aefIP&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInetAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getHostAddress<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u7aef\u53e3\u53f7&#xff1a;%s%n&#034;<\/span><span class=\"token punctuation\">,<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getPort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token comment\">\/\/ 5.\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u6570\u636e&#xff0c;\u9700\u8981\u4ece\u5ba2\u6237\u7aefSocket\u4e2d\u7684\u8f93\u5165\u6d41\u83b7\u53d6<\/span><br \/>\n                        <span class=\"token class-name\">InputStream<\/span> is <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token comment\">\/\/ \u89e3\u6790\u4e3a\u8bf7\u6c42\u5bf9\u8c61<\/span><br \/>\n                        <span class=\"token class-name\">Request<\/span> request <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Request<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">serverParse<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u7aef\u6536\u5230\u8bf7\u6c42&#xff1a;&#034;<\/span><span class=\"token operator\">&#043;<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token comment\">\/\/ 6.\u6839\u636e\u8bf7\u6c42\u5904\u7406\u4e1a\u52a1&#xff1a;\u5904\u7406\u5b8c\u6210\u8fd4\u56de\u54cd\u5e94\u5bf9\u8c61<\/span><br \/>\n                        <span class=\"token class-name\">Response<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token comment\">\/\/ 7.\u8fd4\u56de\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef&#xff1a;\u901a\u8fc7\u5ba2\u6237\u7aefsocket\u4e2d\u7684\u8f93\u51fa\u6d41\u53d1\u9001\u54cd\u5e94\u6570\u636e<\/span><br \/>\n                        <span class=\"token class-name\">OutputStream<\/span> os <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token comment\">\/\/ 7-1.\u8fd4\u56de\u7684\u54cd\u5e94\u5185\u5bb9&#xff1a;\u6309\u7167\u7ea6\u5b9a\u683c\u5f0f\u8f93\u51fa\u54cd\u5e94\u5bf9\u8c61\u4e2d\u7684\u5185\u5bb9<\/span><br \/>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u7aef\u8fd4\u56de\u54cd\u5e94&#xff1a;&#034;<\/span><span class=\"token operator\">&#043;<\/span>response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">serverWrite<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token comment\">\/\/ 7-3.\u53cc\u65b9\u5173\u95ed\u8fde\u63a5&#xff1a;\u670d\u52a1\u7aef\u662f\u5173\u95ed\u5ba2\u6237\u7aefsocket\u8fde\u63a5<\/span><br \/>\n                        socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                   <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IOException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                        e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                   <span class=\"token punctuation\">}<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n           <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/\u6839\u636e\u8bf7\u6c42\u5904\u7406\u4e1a\u52a1&#xff0c;\u8fd4\u56de\u54cd\u5e94\u5bf9\u8c61<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Response<\/span> <span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Request<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Response<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Response<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">File<\/span> url <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">(<\/span>BASE_PATH<span class=\"token operator\">&#043;<\/span>request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getUrl<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u8be5\u8def\u5f84\u7684\u6587\u4ef6\u6216\u76ee\u5f55\u4e0d\u5b58\u5728<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>url<span class=\"token punctuation\">.<\/span><span class=\"token function\">exists<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setStatus<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">404<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">switch<\/span> <span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token comment\">\/\/1\u5c55\u793a\u76ee\u5f55\u6587\u4ef6\u5217\u8868<\/span><br \/>\n                <span class=\"token keyword\">case<\/span> <span class=\"token number\">1<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> children <span class=\"token operator\">&#061;<\/span> url<span class=\"token punctuation\">.<\/span><span class=\"token function\">listFiles<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>children <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                   <span class=\"token punctuation\">}<\/span><span class=\"token keyword\">else<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                        <span class=\"token comment\">\/\/\u62fc\u63a5\u8981\u8fd4\u56de\u7684\u6570\u636e&#xff1a;\u6587\u4ef6\u5217\u8868<\/span><br \/>\n                        <span class=\"token class-name\">StringBuilder<\/span> sb <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">StringBuilder<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> children<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                            <span class=\"token class-name\">File<\/span> child <span class=\"token operator\">&#061;<\/span> children<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                            <span class=\"token comment\">\/\/\u6587\u4ef6\u8def\u5f84\u622a\u53d6\u6389\u670d\u52a1\u7aef\u672c\u5730\u8def\u5f84\u524d\u7f00<\/span><br \/>\n                           sb<span class=\"token punctuation\">.<\/span><span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>child<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAbsolutePath<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">substring<\/span><span class=\"token punctuation\">(<\/span>BASE_PATH<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#043;<\/span><span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                       <span class=\"token punctuation\">}<\/span><br \/>\n                        response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span>sb<span class=\"token punctuation\">.<\/span><span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                   <span class=\"token punctuation\">}<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n                <span class=\"token comment\">\/\/2\u6587\u4ef6\u91cd\u547d\u540d<\/span><br \/>\n                <span class=\"token keyword\">case<\/span> <span class=\"token number\">2<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    url<span class=\"token punctuation\">.<\/span><span class=\"token function\">renameTo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">.<\/span><span class=\"token function\">getParent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#043;<\/span><span class=\"token class-name\">File<\/span><span class=\"token punctuation\">.<\/span>separator<span class=\"token operator\">&#043;<\/span>request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n                <span class=\"token comment\">\/\/3\u5220\u9664\u6587\u4ef6<\/span><br \/>\n                <span class=\"token keyword\">case<\/span> <span class=\"token number\">3<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    url<span class=\"token punctuation\">.<\/span><span class=\"token function\">delete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n                <span class=\"token comment\">\/\/\u4e0a\u4f20\u6587\u4ef6<\/span><br \/>\n                <span class=\"token keyword\">case<\/span> <span class=\"token number\">4<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token comment\">\/\/\u4e0a\u4f20\u5230\u8bf7\u6c42\u7684\u64cd\u4f5c\u8def\u5f84\u76ee\u5f55\u4e0b&#xff0c;\u4fdd\u5b58\u7684\u6587\u4ef6\u540d\u7b80\u5355\u7684\u4ee5\u968f\u673a\u5b57\u7b26\u4e32uuid\u751f\u6210\u5373\u53ef<\/span><br \/>\n                    <span class=\"token class-name\">FileWriter<\/span> upload <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">FileWriter<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAbsolutePath<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">&#043;<\/span><span class=\"token class-name\">File<\/span><span class=\"token punctuation\">.<\/span>separator<span class=\"token operator\">&#043;<\/span> UUID<span class=\"token punctuation\">.<\/span><span class=\"token function\">randomUUID<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    upload<span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">.<\/span><span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    upload<span class=\"token punctuation\">.<\/span><span class=\"token function\">flush<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    upload<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n                <span class=\"token comment\">\/\/\u4e0b\u8f7d\u6587\u4ef6<\/span><br \/>\n                <span class=\"token keyword\">case<\/span> <span class=\"token number\">5<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                    <span class=\"token class-name\">String<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Files<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">readAllBytes<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">.<\/span><span class=\"token function\">toPath<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    response<span class=\"token punctuation\">.<\/span><span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                    <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span><br \/>\n               <span class=\"token punctuation\">}<\/span><br \/>\n           <span class=\"token punctuation\">}<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IOException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>TCP\u5ba2\u6237\u7aef \u4ee5\u4e0b\u4e3a\u5ba2\u6237\u7aef\u4ee3\u7801&#xff1a; \u5148\u8981\u5efa\u7acb\u548c\u670d\u52a1\u7aef\u7684\u8fde\u63a5&#xff0c;\u8fde\u63a5\u670d\u52a1\u7aef\u7684IP\u548c\u7aef\u53e3\u3002\u6839\u636e\u8f93\u5165\u6765\u6784\u5efa\u8bf7\u6c42\u6570\u636e&#xff1a; 1 . \u5148\u63a5\u6536\u64cd\u4f5c\u7c7b\u578b\u548c\u64cd\u4f5c\u8def\u5f84 2 .\u91cd\u547d\u540d\u64cd\u4f5c\u65f6&#xff0c;\u9700\u8981\u6307\u5b9a\u4fee\u6539\u7684\u6587\u4ef6\u540d 3 .\u6587\u4ef6\u4e0a\u4f20\u64cd\u4f5c\u65f6&#xff0c;\u9700\u8981\u6307\u5b9a\u4e0a\u4f20\u7684\u5ba2\u6237\u7aef\u672c\u5730\u6587\u4ef6\u8def\u5f84 \u89e3\u6790\u54cd\u5e94\u6570\u636e&#xff0c;\u5e76\u6839\u636e\u54cd\u5e94\u6765\u6267\u884c\u76f8\u5e94\u7684\u4e1a\u52a1&#xff0c;\u6211\u4eec\u8fd9\u91cc\u6682\u65f6\u7b80\u5355\u7684\u89e3\u6790\u4e3a Response \u5bf9\u8c61&#xff0c;\u5e76\u6253\u5370\u5373\u53ef<\/p>\n<p><span class=\"token keyword\">package<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>tcp<span class=\"token punctuation\">.<\/span>demo3<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>net<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>nio<span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Files<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>nio<span class=\"token punctuation\">.<\/span>file<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Paths<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Scanner<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TcpClient<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aefIP\u6216\u57df\u540d<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">String<\/span> SERVER_HOST <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;localhost&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/\u670d\u52a1\u7aefSocket\u8fdb\u7a0b\u7684\u7aef\u53e3\u53f7<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token keyword\">int<\/span> SERVER_PORT <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">8888<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u51c6\u5907\u8981\u53d1\u9001\u7684\u6570\u636e&#xff1a;\u8fd9\u91cc\u8c03\u6574\u4e3a\u952e\u76d8\u8f93\u5165\u4f5c\u4e3a\u53d1\u9001\u7684\u5185\u5bb9<\/span><br \/>\n        <span class=\"token class-name\">Scanner<\/span> scanner <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Scanner<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>in<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token comment\">\/\/\u6839\u636e\u952e\u76d8\u8f93\u5165\u6784\u9020\u4e00\u4e2a\u8bf7\u6c42\u5bf9\u8c61&#xff0c;\u5305\u542b\u64cd\u4f5c\u7c7b\u578b&#xff0c;\u64cd\u4f5c\u8def\u5f84&#xff0c;\u957f\u5ea6\u548c\u6570\u636e<\/span><br \/>\n            <span class=\"token class-name\">Request<\/span> request <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span>scanner<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 3.\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u6d41\u5957\u63a5\u5b57Socket&#xff0c;\u5e76\u4e0e\u5bf9\u5e94IP\u7684\u4e3b\u673a\u4e0a&#xff0c;\u5bf9\u5e94\u7aef\u53e3\u7684\u8fdb\u7a0b\u5efa\u7acb\u8fde\u63a5<\/span><br \/>\n            <span class=\"token class-name\">Socket<\/span> socket <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Socket<\/span><span class=\"token punctuation\">(<\/span>SERVER_HOST<span class=\"token punctuation\">,<\/span> SERVER_PORT<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 4.\u53d1\u9001TCP\u6570\u636e&#xff0c;\u662f\u901a\u8fc7socket\u4e2d\u7684\u8f93\u51fa\u6d41\u8fdb\u884c\u53d1\u9001<\/span><br \/>\n            <span class=\"token class-name\">OutputStream<\/span> os <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getOutputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 4-1.\u53d1\u9001\u8bf7\u6c42\u6570\u636e&#xff1a;\u6309\u7167\u7ea6\u5b9a\u7684\u683c\u5f0f\u8f93\u51fa\u8bf7\u6c42\u5bf9\u8c61\u4e2d\u7684\u5185\u5bb9<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42&#xff1a;&#034;<\/span><span class=\"token operator\">&#043;<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            request<span class=\"token punctuation\">.<\/span><span class=\"token function\">clientWrite<\/span><span class=\"token punctuation\">(<\/span>os<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 8.\u63a5\u6536\u8fd4\u56de\u7684\u54cd\u5e94\u6570\u636e&#xff1a;\u901a\u8fc7socket\u4e2d\u7684\u8f93\u5165\u6d41\u83b7\u53d6<\/span><br \/>\n            <span class=\"token class-name\">InputStream<\/span> is <span class=\"token operator\">&#061;<\/span> socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">getInputStream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ \u6839\u636e\u7ea6\u5b9a\u7684\u683c\u5f0f\u83b7\u53d6\u54cd\u5e94\u6570\u636e<\/span><br \/>\n            <span class=\"token class-name\">Response<\/span> response <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Response<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">clientParse<\/span><span class=\"token punctuation\">(<\/span>is<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5ba2\u6237\u7aef\u6536\u5230\u54cd\u5e94&#xff1a;&#034;<\/span><span class=\"token operator\">&#043;<\/span>response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/ 9.\u53cc\u65b9\u5173\u95ed\u8fde\u63a5&#xff1a;\u5ba2\u6237\u7aef\u5173\u95edsocket\u8fde\u63a5<\/span><br \/>\n            socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u65f6&#xff0c;\u6839\u636e\u952e\u76d8\u8f93\u5165\u6784\u9020\u4e00\u4e2a\u8bf7\u6c42\u5bf9\u8c61<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Request<\/span> <span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Scanner<\/span> scanner<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">IOException<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165\u8981\u64cd\u4f5c\u7684\u7c7b\u578b&#xff1a;1&#xff08;\u5c55\u793a\u76ee\u5f55\u6587\u4ef6\u5217\u8868&#xff09;&#xff0c;2&#xff08;\u6587\u4ef6\u91cd\u547d\u540d&#xff09;&#xff0c;3&#xff08;\u5220\u9664\u6587\u4ef6&#xff09;&#xff0c;4&#xff08;\u4e0a\u4f20\u6587\u4ef6&#xff09;&#xff0c;5&#xff08;\u4e0b\u8f7d\u6587\u4ef6&#xff09;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">Request<\/span> request <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Request<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> type <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parseInt<\/span><span class=\"token punctuation\">(<\/span>scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165\u8981\u64cd\u4f5c\u7684\u8def\u5f84&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> url <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u53ea\u9700\u8981\u64cd\u4f5c\u7c7b\u578b\u548c\u64cd\u4f5c\u8def\u5f84\u7684\u8bf7\u6c42&#xff0c;\u957f\u5ea6\u548c\u6570\u636e\u6784\u9020\u4e3a\u7a7a\u7684<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><span class=\"token comment\">\/\/\u91cd\u547d\u540d\u64cd\u4f5c&#xff0c;\u9700\u8981\u8f93\u5165\u91cd\u547d\u540d\u7684\u540d\u79f0<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165\u8981\u91cd\u547d\u540d\u7684\u540d\u79f0&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            data <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><span class=\"token comment\">\/\/\u6587\u4ef6\u4e0a\u4f20&#xff0c;\u9700\u8981\u63d0\u4f9b\u4e0a\u4f20\u7684\u6587\u4ef6\u8def\u5f84<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165\u8981\u4e0a\u4f20\u7684\u6587\u4ef6\u8def\u5f84&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> upload <span class=\"token operator\">&#061;<\/span> scanner<span class=\"token punctuation\">.<\/span><span class=\"token function\">nextLine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            data <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Files<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">readAllBytes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Paths<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span>upload<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>type <span class=\"token operator\">!&#061;<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">&amp;&amp;<\/span> type <span class=\"token operator\">!&#061;<\/span><span class=\"token number\">3<\/span> <span class=\"token operator\">&amp;&amp;<\/span> type<span class=\"token operator\">!&#061;<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u53ea\u80fd\u8f93\u51651-5\u7684\u6570\u5b57&#xff0c;\u8bf7\u91cd\u65b0\u8f93\u5165&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token function\">build<\/span><span class=\"token punctuation\">(<\/span>scanner<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token punctuation\">}<\/span><br \/>\n        request<span class=\"token punctuation\">.<\/span><span class=\"token function\">setType<\/span><span class=\"token punctuation\">(<\/span>type<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        request<span class=\"token punctuation\">.<\/span><span class=\"token function\">setUrl<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        request<span class=\"token punctuation\">.<\/span><span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> request<span class=\"token punctuation\">;<\/span><br \/>\n   <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>\u7ed3\u8bed<\/h2>\n<p>\u7ed3\u8bed \u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u4e86\u7f51\u7edc\u7f16\u7a0b\u57fa\u7840&#xff0c;\u5e76\u4ecb\u7ecd\u4e86Socket\u5957\u63a5\u5b57 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