{"id":29850,"date":"2025-04-20T13:31:14","date_gmt":"2025-04-20T05:31:14","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/29850.html"},"modified":"2025-04-20T13:31:14","modified_gmt":"2025-04-20T05:31:14","slug":"android%e4%b8%8e%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%9e%e6%97%b6%e4%ba%a4%e4%ba%92%e6%8a%80%e6%9c%af%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/29850.html","title":{"rendered":"Android\u4e0e\u670d\u52a1\u5668\u5b9e\u65f6\u4ea4\u4e92\u6280\u672f\u8be6\u89e3"},"content":{"rendered":"

\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\"<\/p>\n

\u7b80\u4ecb：Android\u5f00\u53d1\u4e2d，\u8bbe\u5907\u4e0e\u670d\u52a1\u5668\u7684\u4ea4\u4e92\u4e3b\u8981\u7528\u4e8e\u5b9e\u73b0\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536，\u5982\u767b\u5f55\u9a8c\u8bc1\u548c\u5b9e\u65f6\u901a\u4fe1\u7b49\u3002\u672c\u6587\u4e3b\u8981\u63a2\u8ba8\u901a\u8fc7Socket\u7f16\u7a0b\u5b9e\u73b0Android\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5185\u5bb9\u5305\u62ecHTTP\/HTTPS\u534f\u8bae\u548cSocket\u7f16\u7a0b\u57fa\u7840，Android\u4e2dSocket\u7684\u5b9e\u73b0\u7ec6\u8282，\u4ee5\u53caSocket\u8fde\u63a5\u7684\u5f02\u5e38\u5904\u7406\u3001\u6743\u9650\u8bbe\u7f6e\u3001\u5f02\u6b65\u5904\u7406\u548c\u5b89\u5168\u901a\u4fe1\u7b49\u4f18\u5316\u63aa\u65bd\u3002 \"android\"<\/p>\n

1. HTTP\/HTTPS\u534f\u8bae\u57fa\u7840 <\/h2>\n

1.1 HTTP\u534f\u8bae\u7b80\u4ecb <\/h3>\n

\u8d85\u6587\u672c\u4f20\u8f93\u534f\u8bae（HTTP）\u662f\u4e92\u8054\u7f51\u4e0a\u5e94\u7528\u6700\u5e7f\u6cdb\u7684\u4e00\u79cd\u7f51\u7edc\u534f\u8bae，\u8d1f\u8d23\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u3002HTTP\u534f\u8bae\u8bbe\u8ba1\u4e4b\u521d\u662f\u4e3a\u4e86\u4f20\u8f93HTML\u9875\u9762，\u5982\u4eca\u5b83\u7684\u5e94\u7528\u8303\u56f4\u5df2\u7ecf\u6269\u5c55\u5230\u4e86\u6570\u636e\u4ea4\u6362\u3001\u56fe\u7247\u3001\u89c6\u9891\u7b49\u5185\u5bb9\u7684\u4f20\u8f93\u3002HTTP\u4f7f\u7528\u4e86\u8bf7\u6c42-\u54cd\u5e94\u6a21\u578b，\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u540e，\u670d\u52a1\u5668\u4f1a\u8fd4\u56de\u54cd\u5e94\u6570\u636e\u3002 <\/p>\n

1.2 HTTPS\u534f\u8bae\u7684\u5f15\u5165 <\/h3>\n

\u968f\u7740\u7f51\u7edc\u5b89\u5168\u610f\u8bc6\u7684\u589e\u5f3a，HTTP\u7684\u4e0d\u8db3\u4e4b\u5904\u9010\u6e10\u66b4\u9732，\u5c24\u5176\u662f\u6570\u636e\u4f20\u8f93\u7684\u4e0d\u5b89\u5168\u6027\u3002HTTPS\u662fHTTP\u7684\u5b89\u5168\u7248\u672c，\u5b83\u5728HTTP\u7684\u57fa\u7840\u4e0a\u52a0\u5165\u4e86SSL\/TLS\u534f\u8bae，\u901a\u8fc7\u52a0\u5bc6\u901a\u9053\u4f20\u8f93\u6570\u636e，\u4fdd\u8bc1\u4e86\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u3002HTTPS\u5728\u4e92\u8054\u7f51\u4e2d\u7684\u666e\u53ca\u7387\u9010\u5e74\u4e0a\u5347，\u5c24\u5176\u662f\u5728\u5904\u7406\u654f\u611f\u4fe1\u606f（\u5982\u5728\u7ebf\u4ea4\u6613）\u65f6，\u6210\u4e3a\u6807\u51c6\u505a\u6cd5\u3002 <\/p>\n

1.3 HTTP\/HTTPS\u534f\u8bae\u7684\u7279\u70b9 <\/h3>\n

HTTP\u548cHTTPS\u534f\u8bae\u5404\u6709\u7279\u70b9，\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u662f\u5426\u5bf9\u4f20\u8f93\u7684\u6570\u636e\u8fdb\u884c\u4e86\u52a0\u5bc6\u3002HTTP\u4f20\u8f93\u901f\u5ea6\u8f83\u5feb，\u4f46\u5b58\u5728\u6570\u636e\u6cc4\u9732\u7684\u98ce\u9669；\u800cHTTPS\u867d\u7136\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u51cf\u6162\u4e86\u6570\u636e\u4f20\u8f93\u901f\u5ea6，\u4f46\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u3002\u6b64\u5916，HTTPS\u9700\u8981CA\u8bc1\u4e66，\u4ee5\u786e\u4fdd\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u662f\u88ab\u7b2c\u4e09\u65b9\u9a8c\u8bc1\u7684\u5b89\u5168\u7684\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u9009\u62e9\u4f7f\u7528HTTP\u8fd8\u662fHTTPS\u534f\u8bae\u3002 <\/p>\n

2. Socket\u7f16\u7a0b\u6982\u5ff5\u4e0e\u5b9e\u8df5 <\/h2>\n

2.1 Socket\u7f16\u7a0b\u6982\u5ff5 <\/h3>\n

2.1.1 Socket\u7684\u57fa\u672c\u539f\u7406 <\/h4>\n

Socket\u7f16\u7a0b\u662f\u7f51\u7edc\u5e94\u7528\u5f00\u53d1\u4e2d\u7684\u57fa\u7840，\u5b83\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u901a\u8fc7\u7f51\u7edc\u8fde\u63a5\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002Socket\u53ef\u4ee5\u88ab\u770b\u4f5c\u662f\u5728\u7f51\u7edc\u901a\u4fe1\u4e2d，\u5e94\u7528\u7a0b\u5e8f\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u7f51\u7edc\u534f\u8bae\u6808\u4e4b\u95f4\u7684\u63a5\u53e3\u6216\u62bd\u8c61\u5c42\u3002\u5728\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e2d，\u5bf9Socket\u7684\u5b9e\u73b0\u5404\u6709\u5dee\u5f02，\u4f46\u57fa\u672c\u539f\u7406\u662f\u76f8\u540c\u7684\u3002 <\/p>\n

\u57fa\u672c\u539f\u7406\u53ef\u4ee5\u6982\u62ec\u4e3a：\u901a\u8fc7\u521b\u5efa\u4e00\u4e2aSocket\u5b9e\u4f8b，\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u6253\u5f00\u4e00\u4e2a\u7f51\u7edc\u901a\u4fe1\u901a\u9053，\u7136\u540e\u901a\u8fc7\u8fd9\u4e2a\u901a\u9053\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002\u6839\u636e\u4f20\u8f93\u5c42\u534f\u8bae\u7684\u4e0d\u540c，Socket\u53ef\u4ee5\u5206\u4e3a\u4e24\u5927\u7c7b：\u57fa\u4e8eTCP（Transmission Control Protocol）\u7684Socket，\u63d0\u4f9b\u9762\u5411\u8fde\u63a5\u7684\u3001\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u670d\u52a1；\u57fa\u4e8eUDP（User Datagram Protocol）\u7684Socket，\u63d0\u4f9b\u65e0\u8fde\u63a5\u7684\u3001\u5c3d\u6700\u5927\u52aa\u529b\u4ea4\u4ed8\u7684\u6570\u636e\u4f20\u8f93\u670d\u52a1\u3002 <\/p>\n

\u5728TCP\/IP\u7f51\u7edc\u6a21\u578b\u4e2d，Socket\u5de5\u4f5c\u5728\u5e94\u7528\u5c42\u4e0e\u4f20\u8f93\u5c42\u4e4b\u95f4\u3002\u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7Socket\u63a5\u53e3\u6765\u8bbf\u95ee\u4f20\u8f93\u5c42\u534f\u8bae，\u4f20\u8f93\u5c42\u534f\u8bae\u5219\u8d1f\u8d23\u6570\u636e\u7684\u4f20\u8f93\u3002\u7531\u4e8e\u8fd9\u79cd\u62bd\u8c61，\u7a0b\u5e8f\u5458\u53ef\u4ee5\u4e0d\u5fc5\u5173\u5fc3\u590d\u6742\u7684\u7f51\u7edc\u534f\u8bae\u7ec6\u8282，\u800c\u4e13\u6ce8\u4e8e\u7f16\u5199\u5177\u4f53\u7684\u5e94\u7528\u903b\u8f91\u3002 <\/p>\n

2.1.2 Socket\u4e0eHTTP\/HTTPS\u7684\u533a\u522b\u548c\u8054\u7cfb <\/h4>\n

Socket\u662f\u5b9e\u73b0\u7f51\u7edc\u901a\u4fe1\u7684\u5e95\u5c42\u6280\u672f，\u800cHTTP（Hypertext Transfer Protocol）\u548cHTTPS（Hypertext Transfer Protocol Secure）\u662f\u57fa\u4e8eSocket\u901a\u4fe1\u7684\u5e94\u7528\u5c42\u534f\u8bae\u3002HTTP\u534f\u8bae\u4f7f\u7528\u7684\u662f\u9762\u5411\u8fde\u63a5\u7684\u3001\u57fa\u4e8e\u8bf7\u6c42-\u54cd\u5e94\u6a21\u5f0f\u7684TCP\u534f\u8bae\u4f5c\u4e3a\u4f20\u8f93\u5c42\u534f\u8bae，\u800cHTTPS\u662fHTTP\u7684\u5b89\u5168\u7248\u672c，\u5b83\u5728HTTP\u7684\u57fa\u7840\u4e0a\u901a\u8fc7SSL\/TLS\u534f\u8bae\u63d0\u4f9b\u4e86\u6570\u636e\u52a0\u5bc6\u548c\u8eab\u4efd\u9a8c\u8bc1\u7684\u5b89\u5168\u4fdd\u969c\u3002 <\/p>\n

\u5728\u8054\u7cfb\u4e0a，\u65e0\u8bba\u662fHTTP\/HTTPS\u8fd8\u662f\u5176\u4ed6\u57fa\u4e8eTCP\u7684\u7f51\u7edc\u5e94\u7528，\u5b83\u4eec\u5e95\u5c42\u90fd\u662f\u901a\u8fc7Socket\u8fdb\u884c\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536\u3002HTTP\/HTTPS\u534f\u8bae\u53ef\u4ee5\u770b\u4f5c\u662f\u5bf9Socket\u901a\u4fe1\u7684\u4e00\u79cd\u5c01\u88c5\u548c\u7b80\u5316，\u63d0\u4f9b\u4e86\u4e00\u5957\u6807\u51c6\u7684\u8bf7\u6c42\u548c\u54cd\u5e94\u683c\u5f0f，\u4f7f\u5f97\u5f00\u53d1\u7f51\u7edc\u5e94\u7528\u66f4\u52a0\u65b9\u4fbf\u5feb\u6377\u3002 <\/p>\n

\u5728\u533a\u522b\u4e0a，\u76f4\u63a5\u4f7f\u7528Socket\u7f16\u7a0b\u53ef\u4ee5\u66f4\u52a0\u7075\u6d3b\u5730\u63a7\u5236\u6570\u636e\u4f20\u8f93\u7684\u5404\u4e2a\u65b9\u9762，\u6bd4\u5982\u8fde\u63a5\u7684\u5efa\u7acb\u3001\u6570\u636e\u7684\u5c01\u88c5\u683c\u5f0f\u3001\u9519\u8bef\u5904\u7406\u7b49\u3002\u800cHTTP\/HTTPS\u534f\u8bae\u5219\u662f\u5728Socket\u7684\u57fa\u7840\u4e0a，\u589e\u52a0\u4e86\u66f4\u591a\u5e94\u7528\u5c42\u7684\u89c4\u5219\u548c\u7ea6\u5b9a，\u56e0\u6b64\u901a\u5e38\u5f00\u53d1\u4f1a\u66f4\u7b80\u5355，\u4f46\u540c\u65f6\u4e5f\u727a\u7272\u4e86\u4e00\u5b9a\u7684\u7075\u6d3b\u6027\u3002\u5728\u67d0\u4e9b\u5bf9\u6027\u80fd\u548c\u63a7\u5236\u6709\u7279\u6b8a\u8981\u6c42\u7684\u573a\u666f\u4e0b，\u76f4\u63a5\u4f7f\u7528Socket\u7f16\u7a0b\u53ef\u80fd\u66f4\u4e3a\u5408\u9002\u3002 <\/p>\n

2.2 \u521b\u5efaSocket\u8fde\u63a5\u65b9\u6cd5 <\/h3>\n

2.2.1 TCP\/IP\u534f\u8bae\u548cSocket\u8fde\u63a5 <\/h4>\n

TCP\/IP\u534f\u8bae\u662f\u4e92\u8054\u7f51\u4e0a\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u534f\u8bae\u65cf，\u5b83\u5b9a\u4e49\u4e86\u6570\u636e\u5982\u4f55\u5728\u7f51\u7edc\u4e0a\u4f20\u8f93\u3001\u5982\u4f55\u8def\u7531\u5230\u76ee\u7684\u5730\u5740\u4ee5\u53ca\u5982\u4f55\u5728\u63a5\u6536\u7aef\u88ab\u7ec4\u88c5\u3002TCP\/IP\u534f\u8bae\u6808\u5c06\u7f51\u7edc\u5206\u5272\u4e3a\u591a\u4e2a\u5c42\u6b21，\u6bcf\u4e00\u5c42\u90fd\u6709\u5176\u7279\u5b9a\u7684\u529f\u80fd\u548c\u534f\u8bae\u3002\u5176\u4e2d，\u4f20\u8f93\u5c42\u4e3b\u8981\u901a\u8fc7TCP\u548cUDP\u534f\u8bae，\u4e3a\u7f51\u7edc\u5e94\u7528\u63d0\u4f9b\u7aef\u5230\u7aef\u7684\u6570\u636e\u4f20\u8f93\u670d\u52a1\u3002 <\/p>\n

Socket\u8fde\u63a5\u5efa\u7acb\u5728TCP\/IP\u534f\u8bae\u6808\u7684\u4f20\u8f93\u5c42\u4e4b\u4e0a\u3002\u5f53\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7Socket\u63a5\u53e3\u521b\u5efa\u8fde\u63a5\u65f6，\u5b83\u5b9e\u9645\u4e0a\u662f\u5728\u64cd\u4f5c\u7cfb\u7edf\u5185\u90e8\u5efa\u7acb\u8d77\u4e00\u6761\u4e13\u7528\u7684\u3001\u53ef\u9760\u7684\u901a\u4fe1\u4fe1\u9053\u3002\u8fde\u63a5\u5efa\u7acb\u540e，\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u901a\u8fc7Socket\u63a5\u53e3\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002TCP\u534f\u8bae\u4f1a\u4fdd\u8bc1\u6570\u636e\u7684\u987a\u5e8f\u3001\u5b8c\u6574\u6027\u548c\u53ef\u9760\u6027，\u5373\u4f7f\u5728\u7f51\u7edc\u6761\u4ef6\u590d\u6742\u7684\u60c5\u51b5\u4e0b\u3002 <\/p>\n

\u521b\u5efaSocket\u8fde\u63a5\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u6b65\u9aa4： 1. \u521b\u5efaSocket\u5bf9\u8c61\u3002 2. \u6307\u5b9a\u76ee\u6807\u670d\u52a1\u5668\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u3002 3. \u5efa\u7acb\u8fde\u63a5\u5230\u76ee\u6807\u670d\u52a1\u5668\u3002 4. \u8fdb\u884c\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536\u3002 5. \u5173\u95ed\u8fde\u63a5\u3002 <\/p>\n

\u5728\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u4e2d，\u6211\u4eec\u5c06\u8be6\u7ec6\u63a2\u8ba8\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u5982\u4f55\u5efa\u7acbSocket\u8fde\u63a5\u3002 <\/p>\n

2.2.2 \u670d\u52a1\u5668\u7aefSocket\u8fde\u63a5\u7684\u5efa\u7acb <\/h4>\n

\u670d\u52a1\u5668\u7aefSocket\u8fde\u63a5\u7684\u5efa\u7acb\u662f\u4e3a\u4e86\u76d1\u542c\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42，\u5e76\u5bf9\u8fd9\u4e9b\u8bf7\u6c42\u505a\u51fa\u54cd\u5e94\u3002\u4ee5\u4e0b\u662f\u670d\u52a1\u5668\u7aef\u5efa\u7acbSocket\u8fde\u63a5\u7684\u57fa\u672c\u6b65\u9aa4\u548c\u4ee3\u7801\u793a\u4f8b： <\/p>\n

  • \n

    \u521b\u5efa\u670d\u52a1\u5668\u7aefSocket\u5b9e\u4f8b ： java ServerSocket serverSocket = new ServerSocket(port); \u8fd9\u91cc ServerSocket \u7c7b\u662fJava\u63d0\u4f9b\u7684\u7528\u4e8e\u521b\u5efa\u670d\u52a1\u5668\u7aefSocket\u7684\u7c7b， port \u662f\u670d\u52a1\u5668\u76d1\u542c\u7684\u7aef\u53e3\u53f7\u3002 <\/p>\n<\/li>\n

  • \n

    \u76d1\u542c\u7aef\u53e3 ： java Socket clientSocket = serverSocket.accept(); \u8c03\u7528 accept() \u65b9\u6cd5\u7b49\u5f85\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u4e00\u65e6\u63a5\u6536\u5230\u8bf7\u6c42， accept() \u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684 Socket \u5b9e\u4f8b，\u8fd9\u4e2a\u5b9e\u4f8b\u7528\u4e8e\u4e0e\u8bf7\u6c42\u8fde\u63a5\u7684\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u4fe1\u3002 <\/p>\n<\/li>\n

  • \n

    \u6570\u636e\u7684\u63a5\u6536\u4e0e\u53d1\u9001 ： \u901a\u8fc7\u5f97\u5230\u7684 clientSocket \u5b9e\u4f8b，\u670d\u52a1\u5668\u53ef\u4ee5\u4f7f\u7528\u8f93\u5165\u8f93\u51fa\u6d41（InputStream \u548c OutputStream）\u6765\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002 <\/p>\n<\/li>\n

  • \n

    \u5173\u95edSocket\u8fde\u63a5 ： java clientSocket.close(); serverSocket.close(); \u6570\u636e\u4f20\u8f93\u5b8c\u6210\u540e，\u5e94\u5173\u95ed\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7684Socket\u8fde\u63a5，\u4ee5\u91ca\u653e\u8d44\u6e90\u3002 <\/p>\n<\/li>\n

    2.2.3 \u5ba2\u6237\u7aefSocket\u8fde\u63a5\u7684\u5efa\u7acb <\/h4>\n

    \u5ba2\u6237\u7aefSocket\u8fde\u63a5\u7684\u5efa\u7acb\u662f\u4e3a\u4e86\u5411\u670d\u52a1\u5668\u7aef\u53d1\u8d77\u8fde\u63a5\u8bf7\u6c42，\u5e76\u901a\u8fc7\u8be5\u8fde\u63a5\u4e0e\u670d\u52a1\u5668\u4ea4\u6362\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u5ba2\u6237\u7aef\u5efa\u7acbSocket\u8fde\u63a5\u7684\u6b65\u9aa4\u548c\u4ee3\u7801\u793a\u4f8b： <\/p>\n

  • \n

    \u521b\u5efa\u5ba2\u6237\u7aefSocket\u5b9e\u4f8b ： java Socket socket = new Socket(host, port); \u5728\u8fd9\u91cc， Socket \u7c7b\u7528\u4e8e\u521b\u5efa\u5ba2\u6237\u7aefSocket， host \u662f\u670d\u52a1\u5668\u7684IP\u5730\u5740， port \u662f\u670d\u52a1\u5668\u76d1\u542c\u7684\u7aef\u53e3\u53f7\u3002 <\/p>\n<\/li>\n

  • \n

    \u6570\u636e\u7684\u53d1\u9001\u4e0e\u63a5\u6536 ： \u7c7b\u4f3c\u4e8e\u670d\u52a1\u5668\u7aef，\u5ba2\u6237\u7aef\u540c\u6837\u4f7f\u7528\u8f93\u5165\u8f93\u51fa\u6d41\u4e0e\u670d\u52a1\u5668\u7aef\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002 <\/p>\n<\/li>\n

  • \n

    \u5173\u95edSocket\u8fde\u63a5 ： java socket.close(); \u6570\u636e\u4ea4\u6362\u5b8c\u6210\u540e，\u5173\u95ed\u5ba2\u6237\u7aefSocket\u8fde\u63a5\u91ca\u653e\u8d44\u6e90\u3002 <\/p>\n<\/li>\n

    \u4ee5\u4e0a\u6b65\u9aa4\u5c55\u793a\u4e86\u5982\u4f55\u5728Java\u4e2d\u521b\u5efa\u57fa\u4e8eTCP\u7684Socket\u8fde\u63a5，\u8fd9\u662fSocket\u7f16\u7a0b\u4e2d\u6700\u57fa\u672c\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u5728Socket\u6570\u636e\u4ea4\u6362\u6d41\u7a0b\u4e2d\u7684\u8f93\u5165\u8f93\u51fa\u6d41\u64cd\u4f5c，\u4ee5\u53ca\u5982\u4f55\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002 <\/p>\n

    3. Socket\u6570\u636e\u4ea4\u6362\u6d41\u7a0b <\/h2>\n

    3.1 \u8f93\u5165\u8f93\u51fa\u6d41\u64cd\u4f5c <\/h3>\n

    3.1.1 Java\u4e2d\u7684\u6d41\u64cd\u4f5c\u57fa\u7840 <\/h4>\n

    \u5728Java\u7f16\u7a0b\u8bed\u8a00\u4e2d，\u6d41（Stream）\u662f\u6570\u636e\u4f20\u8f93\u7684\u4e00\u79cd\u62bd\u8c61\u6982\u5ff5，\u5b83\u5141\u8bb8\u7a0b\u5e8f\u4ee5\u987a\u5e8f\u7684\u65b9\u5f0f\u8bfb\u53d6\u548c\u5199\u5165\u6570\u636e\u3002\u6d41\u53ef\u4ee5\u7528\u4e8e\u6570\u636e\u7684\u8f93\u5165\u548c\u8f93\u51fa，\u5206\u522b\u88ab\u79f0\u4e3a\u8f93\u5165\u6d41\u548c\u8f93\u51fa\u6d41\u3002\u6240\u6709\u7684\u6d41\u7c7b\u90fd\u4f4d\u4e8e java.io \u5305\u4e2d，\u662f\u8fdb\u884cI\/O\u64cd\u4f5c\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002 <\/p>\n

    \u5bf9\u4e8e\u6570\u636e\u7684\u8f93\u5165\u64cd\u4f5c，\u6211\u4eec\u901a\u5e38\u4f7f\u7528 InputStream \u548c Reader \u53ca\u5176\u6d3e\u751f\u7c7b，\u5b83\u4eec\u8d1f\u8d23\u4ece\u6e90\u5934（\u5982\u6587\u4ef6\u3001\u7f51\u7edc\u8fde\u63a5）\u8bfb\u53d6\u6570\u636e\u5230\u7a0b\u5e8f\u4e2d\u3002\u8f93\u51fa\u64cd\u4f5c\u5219\u4f7f\u7528 OutputStream \u548c Writer \u53ca\u5176\u6d3e\u751f\u7c7b，\u5b83\u4eec\u5c06\u6570\u636e\u4ece\u7a0b\u5e8f\u5199\u5165\u5230\u76ee\u7684\u5730\u3002 <\/p>\n

    Java\u4e2d\u6570\u636e\u6d41\u7684\u64cd\u4f5c\u4e3b\u8981\u5206\u4e3a\u4e24\u79cd\u7c7b\u578b： <\/p>\n

      \n
    • \u5b57\u8282\u6d41：\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\u8fdb\u884c\u8f93\u5165\u8f93\u51fa\u7684\u6d41，\u5305\u62ec InputStream \u3001 OutputStream \u3001 FileInputStream \u3001 FileOutputStream \u7b49\u3002 <\/li>\n
    • \u5b57\u7b26\u6d41：\u4ee5\u5b57\u7b26\u4e3a\u5355\u4f4d\u8fdb\u884c\u8f93\u5165\u8f93\u51fa\u7684\u6d41，\u5305\u62ec Reader \u3001 Writer \u3001 FileReader \u3001 FileWriter \u7b49\u3002 <\/li>\n<\/ul>\n

      \u5728\u5904\u7406\u4e8c\u8fdb\u5236\u6570\u636e\u65f6，\u5b57\u8282\u6d41\u662f\u66f4\u4f73\u7684\u9009\u62e9，\u56e0\u4e3a\u5b83\u4eec\u63d0\u4f9b\u4e86\u5bf9\u539f\u59cb\u5b57\u8282\u6570\u636e\u7684\u8bbf\u95ee\u80fd\u529b，\u800c\u4e0d\u8fdb\u884c\u4efb\u4f55\u8f6c\u6362\u3002\u800c\u5b57\u7b26\u6d41\u5728\u5904\u7406\u6587\u672c\u6570\u636e\u65f6\u66f4\u4e3a\u65b9\u4fbf，\u56e0\u4e3a\u5b83\u4eec\u81ea\u52a8\u5904\u7406\u4e86\u5b57\u7b26\u7f16\u7801\u548c\u5b57\u7b26\u96c6\u8f6c\u6362\u7684\u95ee\u9898\u3002 <\/p>\n

      3.1.2 \u5b57\u8282\u6d41\u4e0e\u5b57\u7b26\u6d41\u7684\u4f7f\u7528 <\/h4>\n

      \u5b57\u8282\u6d41\u548c\u5b57\u7b26\u6d41\u5728\u4f7f\u7528\u4e0a\u6709\u660e\u663e\u7684\u4e0d\u540c\u3002\u5b57\u8282\u6d41\u662f\u5904\u7406\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u57fa\u672c\u5355\u4f4d，\u6bd4\u5982\u6587\u4ef6\u548c\u7f51\u7edc\u6570\u636e\u7684\u8bfb\u5199\u3002\u5b57\u7b26\u6d41\u5219\u5904\u7406\u7684\u662f\u5b57\u7b26\u6570\u636e，\u6bd4\u5982\u6587\u672c\u6587\u4ef6\u3002 <\/p>\n

      \u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528\u5b57\u8282\u6d41\u548c\u5b57\u7b26\u6d41\u7684\u57fa\u672c\u793a\u4f8b\u4ee3\u7801，\u5176\u4e2d\u89e3\u91ca\u4e86\u5b83\u4eec\u5728\u6587\u4ef6\u64cd\u4f5c\u4e2d\u7684\u5e94\u7528\u3002 <\/p>\n

      \u5b57\u8282\u6d41\u4f7f\u7528\u793a\u4f8b： <\/p>\n

      import java.io.FileInputStream;
      \nimport java.io.FileOutputStream;
      \nimport java.io.IOException;<\/p>\n

      public class ByteStreamExample {
      \n public static void main(String[] args) {
      \n FileInputStream in = null;
      \n FileOutputStream out = null;
      \n try {
      \n in = new FileInputStream("input.txt");
      \n out = new FileOutputStream("output.txt");
      \n \/\/ \u8bfb\u53d6\u5b57\u8282\u6570\u636e
      \n int i;
      \n while ((i = in.read()) != -1) {
      \n out.write(i);
      \n }
      \n } catch (IOException e) {
      \n e.printStackTrace();
      \n } finally {
      \n \/\/ \u5173\u95ed\u8d44\u6e90
      \n try {
      \n if (in != null) in.close();
      \n if (out != null) out.close();
      \n } catch (IOException e) {
      \n e.printStackTrace();
      \n }
      \n }
      \n }
      \n}<\/p>\n

      \u5b57\u7b26\u6d41\u4f7f\u7528\u793a\u4f8b： <\/p>\n

      import java.io.FileReader;
      \nimport java.io.FileWriter;
      \nimport java.io.IOException;<\/p>\n

      public class CharStreamExample {
      \n public static void main(String[] args) {
      \n FileReader reader = null;
      \n FileWriter writer = null;
      \n try {
      \n reader = new FileReader("input.txt");
      \n writer = new FileWriter("output.txt");
      \n \/\/ \u8bfb\u53d6\u5b57\u7b26\u6570\u636e
      \n int i;
      \n while ((i = reader.read()) != -1) {
      \n writer.write(i);
      \n }
      \n } catch (IOException e) {
      \n e.printStackTrace();
      \n } finally {
      \n \/\/ \u5173\u95ed\u8d44\u6e90
      \n try {
      \n if (reader != null) reader.close();
      \n if (writer != null) writer.close();
      \n } catch (IOException e) {
      \n e.printStackTrace();
      \n }
      \n }
      \n }
      \n}<\/p>\n

      \u5728\u4f7f\u7528\u6d41\u65f6，\u901a\u5e38\u9700\u8981\u6355\u83b7 IOException \u5f02\u5e38，\u56e0\u4e3a\u5728I\/O\u64cd\u4f5c\u4e2d\u5f02\u5e38\u60c5\u51b5\u8f83\u4e3a\u5e38\u89c1\u3002\u540c\u65f6，\u8981\u786e\u4fdd\u5728\u64cd\u4f5c\u5b8c\u6210\u540e\u5173\u95ed\u6d41，\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\u3002 <\/p>\n

      3.2 \u6570\u636e\u53d1\u9001\u4e0e\u63a5\u6536\u5b9e\u73b0 <\/h3>\n

      3.2.1 \u6570\u636e\u7684\u5c01\u88c5\u4e0e\u53d1\u9001 <\/h4>\n

      \u5728Socket\u7f16\u7a0b\u4e2d，\u6570\u636e\u53d1\u9001\u548c\u63a5\u6536\u662f\u901a\u4fe1\u7684\u6838\u5fc3\u3002\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u901a\u8fc7\u521b\u5efaSocket\u5bf9\u8c61，\u4f7f\u7528\u5176 getOutputStream() \u548c getInputStream() \u65b9\u6cd5\u5206\u522b\u83b7\u53d6\u8f93\u51fa\u6d41\u548c\u8f93\u5165\u6d41\u6765\u8fdb\u884c\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536\u3002 <\/p>\n

      \u6570\u636e\u53d1\u9001\u4e4b\u524d，\u901a\u5e38\u9700\u8981\u8fdb\u884c\u9002\u5f53\u7684\u5c01\u88c5\u3002\u4f8b\u5982，\u4e3a\u4e86\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027，\u53ef\u80fd\u9700\u8981\u5728\u6570\u636e\u5305\u4e2d\u6dfb\u52a0\u5934\u90e8\u4fe1\u606f，\u5982\u6570\u636e\u957f\u5ea6\u3001\u6570\u636e\u7c7b\u578b\u6807\u8bc6\u7b49\u3002 <\/p>\n

      \u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b，\u5c55\u793a\u4e86\u5728Java\u4e2d\u5982\u4f55\u901a\u8fc7Socket\u53d1\u9001\u5b57\u7b26\u4e32\u6570\u636e\u3002 <\/p>\n

      \u670d\u52a1\u5668\u7aef\u63a5\u6536\u6570\u636e： <\/p>\n

      import java.io.BufferedReader;
      \nimport java.io.IOException;
      \nimport java.io.InputStreamReader;
      \nimport java.net.ServerSocket;
      \nimport java.net.Socket;<\/p>\n

      public class Server {
      \n public static void main(String[] args) throws IOException {
      \n ServerSocket serverSocket = new ServerSocket(12345);
      \n System.out.println("Server is running…");
      \n Socket socket = serverSocket.accept();
      \n System.out.println("New connection accepted: " + socket.getInetAddress());
      \n BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
      \n String inputLine;
      \n while ((inputLine = in.readLine()) != null) {
      \n System.out.println("Server received: " + inputLine);
      \n }
      \n in.close();
      \n socket.close();
      \n serverSocket.close();
      \n }
      \n}<\/p>\n

      \u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e： <\/p>\n

      import java.io.PrintWriter;
      \nimport java.net.Socket;<\/p>\n

      public class Client {
      \n public static void main(String[] args) throws IOException {
      \n Socket socket = new Socket("localhost", 12345);
      \n PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
      \n out.println("Hello, this is a test message.");
      \n out.close();
      \n socket.close();
      \n }
      \n}<\/p>\n

      \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d，\u670d\u52a1\u5668\u7aef\u521b\u5efa\u4e86 ServerSocket \u6765\u76d1\u542c\u7279\u5b9a\u7aef\u53e3\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u4e00\u65e6\u63a5\u6536\u5230\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42，\u5b83\u5c31\u4f1a\u4ece\u8be5\u8fde\u63a5\u4e2d\u83b7\u53d6\u8f93\u5165\u6d41，\u5e76\u4f7f\u7528 BufferedReader \u6765\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u3002 <\/p>\n

      \u5ba2\u6237\u7aef\u901a\u8fc7 Socket \u8fde\u63a5\u5230\u670d\u52a1\u5668，\u5e76\u901a\u8fc7\u83b7\u53d6\u7684\u8f93\u51fa\u6d41\u53d1\u9001\u5b57\u7b26\u4e32\u6570\u636e\u7ed9\u670d\u52a1\u5668\u3002\u53d1\u9001\u5b8c\u6bd5\u540e，\u5173\u95ed\u6d41\u548cSocket\u8fde\u63a5\u662f\u4e00\u4e2a\u597d\u4e60\u60ef，\u4ee5\u91ca\u653e\u76f8\u5173\u8d44\u6e90\u3002 <\/p>\n

      3.2.2 \u6570\u636e\u7684\u63a5\u6536\u4e0e\u89e3\u6790 <\/h4>\n

      \u63a5\u6536\u6570\u636e\u7684\u8fc7\u7a0b\u662f\u53d1\u9001\u7684\u9006\u8fc7\u7a0b\u3002\u670d\u52a1\u5668\u7aef\u901a\u8fc7\u4ece\u8fde\u63a5\u7684Socket\u5bf9\u8c61\u4e2d\u83b7\u53d6\u8f93\u5165\u6d41\u6765\u63a5\u6536\u6570\u636e，\u7136\u540e\u89e3\u6790\u8fd9\u4e9b\u6570\u636e\u4ee5\u4fbf\u540e\u7eed\u5904\u7406\u3002 <\/p>\n

      \u5728\u4e0a\u8ff0\u670d\u52a1\u5668\u7aef\u4ee3\u7801\u793a\u4f8b\u4e2d，\u4f7f\u7528\u4e86 BufferedReader \u7684 readLine() \u65b9\u6cd5\u6765\u6309\u884c\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u5b57\u7b26\u4e32\u6570\u636e\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u6570\u636e\u53ef\u80fd\u4ee5\u4e8c\u8fdb\u5236\u5f62\u5f0f\u53d1\u9001，\u8fd9\u65f6\u9700\u8981\u4f7f\u7528\u5b57\u8282\u6d41\u8bfb\u53d6，\u5e76\u5bf9\u6570\u636e\u8fdb\u884c\u76f8\u5e94\u7684\u89e3\u6790\u3002 <\/p>\n

      \u4f8b\u5982，\u5982\u679c\u53d1\u9001\u7684\u6570\u636e\u5305\u542b\u591a\u4e2a\u5b57\u6bb5，\u63a5\u6536\u65b9\u53ef\u80fd\u9700\u8981\u6839\u636e\u5206\u9694\u7b26\u6765\u89e3\u6790\u8fd9\u4e9b\u5b57\u6bb5\u3002\u5982\u679c\u6570\u636e\u662f\u4ee5\u7279\u5b9a\u7684\u534f\u8bae\u683c\u5f0f\u53d1\u9001，\u63a5\u6536\u65b9\u8fd8\u9700\u8981\u6839\u636e\u534f\u8bae\u89c4\u5b9a\u7684\u683c\u5f0f\u6765\u89e3\u6790\u6570\u636e，\u8fd9\u53ef\u80fd\u6d89\u53ca\u5230\u5b57\u8282\u7684\u89e3\u6790\u3001\u6574\u6570\u7684\u8f6c\u6362\u3001\u5b57\u7b26\u4e32\u7684\u7ec4\u5408\u7b49\u3002 <\/p>\n

      \u6570\u636e\u89e3\u6790\u65f6\u9700\u8981\u6ce8\u610f\u5b57\u8282\u5e8f（endianess）\u7684\u95ee\u9898，\u56e0\u4e3a\u4e0d\u540c\u5e73\u53f0\u4f7f\u7528\u7684\u5b57\u8282\u5e8f\u53ef\u80fd\u4e0d\u540c，\u8fd9\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u89e3\u6790\u9519\u8bef\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5，\u6570\u636e\u53d1\u9001\u548c\u63a5\u6536\u65f6\u5fc5\u987b\u660e\u786e\u4f7f\u7528\u5927\u7aef\u6216\u5c0f\u7aef\u5e8f，\u5e76\u5728\u89e3\u6790\u65f6\u8fdb\u884c\u76f8\u5e94\u7684\u8c03\u6574\u3002 <\/p>\n

      \u9700\u8981\u6ce8\u610f\u7684\u662f，\u5728\u5b9e\u9645\u7684\u7f51\u7edc\u901a\u4fe1\u4e2d，\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536\u901a\u5e38\u4e0d\u662f\u4e00\u6b21\u6027\u5b8c\u6210\u7684，\u5f80\u5f80\u9700\u8981\u5728\u5faa\u73af\u4e2d\u8fdb\u884c，\u76f4\u5230\u6240\u6709\u6570\u636e\u88ab\u5b8c\u5168\u63a5\u6536\u6216\u53d1\u9001\u3002\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b，\u8fd8\u9700\u8981\u8003\u8651\u7ebf\u7a0b\u5b89\u5168\u548c\u540c\u6b65\u95ee\u9898，\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002 <\/p>\n

      4. Socket\u5f02\u5e38\u5904\u7406\u4e0e\u7f51\u7edc\u4f18\u5316 <\/h2>\n

      \u5728\u5b9e\u9645\u7684\u7f51\u7edc\u7f16\u7a0b\u5b9e\u8df5\u4e2d，Socket\u7f16\u7a0b\u4e0d\u53ef\u907f\u514d\u5730\u4f1a\u9047\u5230\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\u3002\u56e0\u6b64，\u5982\u4f55\u6709\u6548\u5730\u5904\u7406\u8fd9\u4e9b\u5f02\u5e38，\u5e76\u4f18\u5316\u7f51\u7edc\u6027\u80fd，\u662f\u63d0\u5347\u5e94\u7528\u7a33\u5b9a\u6027\u548c\u7528\u6237\u4f53\u9a8c\u7684\u5173\u952e\u3002\u5728\u672c\u7ae0\u4e2d，\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8Socket\u5f02\u5e38\u5904\u7406\u7684\u7b56\u7565\u548c\u65b9\u6cd5，\u4ee5\u53ca\u5982\u4f55\u901a\u8fc7\u5f02\u6b65\u5904\u7406\u548c\u6027\u80fd\u4f18\u5316\u6765\u63d0\u9ad8\u7f51\u7edc\u901a\u4fe1\u7684\u6548\u7387\u3002 <\/p>\n

      4.1 Socket\u5f02\u5e38\u5904\u7406 <\/h3>\n

      4.1.1 \u5e38\u89c1Socket\u5f02\u5e38\u53ca\u5904\u7406\u7b56\u7565 <\/h4>\n

      \u5728\u8fdb\u884cSocket\u7f16\u7a0b\u65f6，\u5e38\u89c1\u7684\u5f02\u5e38\u60c5\u51b5\u5305\u62ec\u8fde\u63a5\u5931\u8d25\u3001\u6570\u636e\u4f20\u8f93\u5f02\u5e38\u3001\u8d44\u6e90\u8017\u5c3d\u7b49\u3002\u5904\u7406\u8fd9\u4e9b\u5f02\u5e38\u9700\u8981\u5f00\u53d1\u8005\u5177\u5907\u5bf9\u7f51\u7edc\u7f16\u7a0b\u5f02\u5e38\u7c7b\u578b\u53ca\u5176\u53d1\u751f\u539f\u56e0\u7684\u6df1\u523b\u7406\u89e3\u3002 <\/p>\n

        \n
      • java.net.ConnectException ：\u8fde\u63a5\u88ab\u62d2\u7edd，\u53ef\u80fd\u662f\u56e0\u4e3a\u670d\u52a1\u7aef\u672a\u8fd0\u884c\u6216\u7aef\u53e3\u88ab\u5360\u7528\u3002 <\/li>\n
      • java.net.SocketTimeoutException ：\u8fde\u63a5\u8d85\u65f6，\u901a\u5e38\u662f\u56e0\u4e3a\u5728\u6307\u5b9a\u65f6\u95f4\u5185\u672a\u80fd\u5b8c\u6210\u7f51\u7edc\u64cd\u4f5c\u3002 <\/li>\n
      • java.io.EOFException ：\u8fdc\u7a0b\u4e3b\u673a\u5f3a\u5236\u5173\u95ed\u4e86\u4e00\u4e2a\u73b0\u6709\u7684\u8fde\u63a5，\u8fd9\u53ef\u80fd\u53d1\u751f\u5728\u5ba2\u6237\u7aef\u6216\u8005\u670d\u52a1\u7aef\u3002 <\/li>\n
      • java.net.NoRouteToHostException ：\u627e\u4e0d\u5230\u5230\u4e3b\u673a\u7684\u8def\u7531，\u53ef\u80fd\u662f\u56e0\u4e3a\u7f51\u7edc\u914d\u7f6e\u9519\u8bef\u6216\u8005\u7f51\u7edc\u6545\u969c\u3002 <\/li>\n<\/ul>\n

        \u6bcf\u79cd\u5f02\u5e38\u90fd\u6709\u5176\u7279\u5b9a\u7684\u5904\u7406\u7b56\u7565，\u4f8b\u5982： <\/p>\n

        try {
        \n \/\/ \u5efa\u7acb\u8fde\u63a5\u6216\u6570\u636e\u4ea4\u6362\u7684\u64cd\u4f5c
        \n} catch (ConnectException e) {
        \n \/\/ \u5904\u7406\u8fde\u63a5\u88ab\u62d2\u7edd\u7684\u5f02\u5e38，\u5982\u53ef\u4ee5\u8fdb\u884c\u91cd\u8bd5\u6216\u901a\u77e5\u7528\u6237
        \n} catch (SocketTimeoutException e) {
        \n \/\/ \u5904\u7406\u8fde\u63a5\u8d85\u65f6\u7684\u5f02\u5e38，\u5982\u53ef\u4ee5\u8fdb\u884c\u91cd\u8bd5\u6216\u8c03\u6574\u8d85\u65f6\u65f6\u95f4
        \n} catch (EOFException e) {
        \n \/\/ \u5904\u7406\u8fdc\u7a0b\u4e3b\u673a\u5173\u95ed\u8fde\u63a5\u7684\u5f02\u5e38，\u5982\u53ef\u4ee5\u5c1d\u8bd5\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5
        \n} catch (NoRouteToHostException e) {
        \n \/\/ \u5904\u7406\u627e\u4e0d\u5230\u8def\u7531\u7684\u5f02\u5e38，\u5982\u53ef\u4ee5\u68c0\u67e5\u7f51\u7edc\u914d\u7f6e\u6216\u8def\u7531\u8868
        \n} catch (Exception e) {
        \n \/\/ \u5904\u7406\u5176\u4ed6\u672a\u9884\u89c1\u7684\u5f02\u5e38\u60c5\u51b5
        \n}<\/p>\n

        4.1.2 \u5f02\u5e38\u6355\u83b7\u4e0e\u8d44\u6e90\u7ba1\u7406 <\/h4>\n

        \u5728\u5f02\u5e38\u5904\u7406\u4e2d，\u8d44\u6e90\u7ba1\u7406\u5c24\u4e3a\u5173\u952e\u3002\u8d44\u6e90\u7ba1\u7406\u5305\u62ec\u5bf9Socket\u8fde\u63a5\u3001\u8f93\u5165\u8f93\u51fa\u6d41\u7b49\u8fdb\u884c\u6709\u6548\u7ba1\u7406，\u907f\u514d\u8d44\u6e90\u6cc4\u9732\u3002\u4f7f\u7528 try-catch-finally \u7ed3\u6784\u662f\u8d44\u6e90\u7ba1\u7406\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u3002 <\/p>\n

        Socket socket = null;
        \nOutputStream out = null;
        \nInputStream in = null;
        \ntry {
        \n socket = new Socket("host", port);
        \n out = socket.getOutputStream();
        \n in = socket.getInputStream();
        \n \/\/ \u8fdb\u884c\u6570\u636e\u4ea4\u6362
        \n} catch (IOException e) {
        \n \/\/ \u5904\u7406\u5f02\u5e38
        \n} finally {
        \n if (out != null) try { out.close(); } catch (IOException e) { \/* \u65e5\u5fd7\u8bb0\u5f55 *\/ }
        \n if (in != null) try { in.close(); } catch (IOException e) { \/* \u65e5\u5fd7\u8bb0\u5f55 *\/ }
        \n if (socket != null) try { socket.close(); } catch (IOException e) { \/* \u65e5\u5fd7\u8bb0\u5f55 *\/ }
        \n}<\/p>\n

        \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u5373\u4f7f\u5728\u53d1\u751f\u5f02\u5e38\u7684\u60c5\u51b5\u4e0b，\u6211\u4eec\u4e5f\u80fd\u786e\u4fdd\u6240\u6709\u7684\u8d44\u6e90\u90fd\u88ab\u6b63\u786e\u5173\u95ed\u3002 <\/p>\n

        4.2 \u5f02\u6b65\u5904\u7406\u4e0e\u6027\u80fd\u4f18\u5316 <\/h3>\n

        4.2.1 \u5f02\u6b65Socket\u901a\u4fe1\u7684\u4f18\u52bf <\/h4>\n

        \u76f8\u5bf9\u4e8e\u540c\u6b65\u901a\u4fe1，\u5f02\u6b65\u901a\u4fe1\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf： <\/p>\n

          \n
        • \u51cf\u5c11\u7ebf\u7a0b\u963b\u585e ：\u5f02\u6b65\u901a\u4fe1\u4e0d\u4f9d\u8d56\u4e8e\u963b\u585e\u6a21\u5f0f\u7684Socket，\u80fd\u591f\u5728\u7b49\u5f85I\/O\u64cd\u4f5c\u5b8c\u6210\u65f6\u91ca\u653e\u7ebf\u7a0b\u8d44\u6e90\u3002 <\/li>\n
        • \u63d0\u9ad8\u541e\u5410\u91cf ：\u53ef\u4ee5\u540c\u65f6\u5904\u7406\u591a\u4e2a\u8fde\u63a5\u6216\u6570\u636e\u4ea4\u6362，\u4ece\u800c\u63d0\u9ad8\u6574\u4f53\u7684\u7f51\u7edc\u901a\u4fe1\u541e\u5410\u91cf\u3002 <\/li>\n
        • \u66f4\u597d\u7684\u7528\u6237\u4f53\u9a8c ：\u54cd\u5e94\u65f6\u95f4\u66f4\u77ed，\u80fd\u591f\u8fc5\u901f\u5730\u5904\u7406\u7528\u6237\u8bf7\u6c42，\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002 <\/li>\n<\/ul>\n

          4.2.2 \u4f18\u5316\u7b56\u7565\u4e0e\u6027\u80fd\u5206\u6790 <\/h4>\n

          \u4f18\u5316Socket\u901a\u4fe1\u7684\u7b56\u7565\u5305\u62ec： <\/p>\n

            \n
          • \u4f7f\u7528\u7f13\u51b2\u533a ：\u5408\u7406\u8bbe\u7f6e\u7f13\u51b2\u533a\u5927\u5c0f，\u907f\u514d\u9891\u7e41\u7684\u6570\u636e\u590d\u5236\u3002 <\/li>\n
          • \u8bfb\u5199\u4f18\u5316 ：\u51cf\u5c11\u6570\u636e\u8bfb\u5199\u7684\u6b21\u6570，\u5408\u5e76\u6570\u636e\u5305，\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u8bfb\u5199\u65b9\u5f0f\u3002 <\/li>\n
          • \u534f\u8bae\u4f18\u5316 ：\u4f7f\u7528\u8f7b\u91cf\u7ea7\u534f\u8bae，\u51cf\u5c11\u534f\u8bae\u5f00\u9500\u3002 <\/li>\n<\/ul>\n

            \u6027\u80fd\u5206\u6790\u901a\u5e38\u9700\u8981\u5de5\u5177\u7684\u652f\u6301，\u4f8b\u5982JProfiler\u3001VisualVM\u7b49\u3002\u6027\u80fd\u5206\u6790\u7684\u8fc7\u7a0b\u5305\u62ec： <\/p>\n

          • \u76d1\u63a7CPU\u4f7f\u7528\u60c5\u51b5，\u67e5\u627eCPU\u70ed\u70b9\u3002 <\/li>\n
          • \u76d1\u63a7\u5185\u5b58\u4f7f\u7528\u60c5\u51b5，\u5bfb\u627e\u5185\u5b58\u6cc4\u6f0f\u6216\u5927\u91cf\u7684\u5bf9\u8c61\u521b\u5efa\u3002 <\/li>\n
          • \u76d1\u63a7\u7f51\u7edcI\/O，\u67e5\u770b\u7f51\u7edc\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\u3002 <\/li>\n
          • \u5206\u6790\u7ebf\u7a0b\u72b6\u6001，\u627e\u51fa\u963b\u585e\u6216\u6b7b\u9501\u3002 <\/li>\n

            graph TD
            \n A[\u5f00\u59cb\u6027\u80fd\u5206\u6790] –> B[\u76d1\u63a7CPU\u4f7f\u7528\u60c5\u51b5]
            \n B –> C[\u76d1\u63a7\u5185\u5b58\u4f7f\u7528\u60c5\u51b5]
            \n C –> D[\u76d1\u63a7\u7f51\u7edcI\/O]
            \n D –> E[\u5206\u6790\u7ebf\u7a0b\u72b6\u6001]
            \n E –> F[\u786e\u5b9a\u4f18\u5316\u65b9\u5411]
            \n F –> G[\u5b9e\u65bd\u4f18\u5316\u7b56\u7565]
            \n G –> H[\u518d\u6b21\u6027\u80fd\u5206\u6790]
            \n H –> I{\u662f\u5426\u6ee1\u8db3\u6027\u80fd\u8981\u6c42}
            \n I — \u662f –> J[\u4f18\u5316\u5b8c\u6210]
            \n I — \u5426 –> B<\/p>\n

            \u4ee5\u4e0a\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u6027\u80fd\u5206\u6790\u6d41\u7a0b\u56fe，\u901a\u8fc7\u53cd\u590d\u8fed\u4ee3\u6b64\u6d41\u7a0b，\u53ef\u4ee5\u9010\u6b65\u63d0\u5347\u7cfb\u7edf\u7684\u7f51\u7edc\u6027\u80fd\u3002 <\/p>\n

            \u5728\u672c\u7ae0\u8282\u4e2d，\u6211\u4eec\u901a\u8fc7\u6df1\u5165\u5206\u6790\u548c\u5b9e\u4f8b\u5c55\u793a，\u5b66\u4e60\u4e86\u5982\u4f55\u5904\u7406Socket\u7f16\u7a0b\u4e2d\u9047\u5230\u7684\u5e38\u89c1\u5f02\u5e38，\u5e76\u63a2\u8ba8\u4e86\u5982\u4f55\u901a\u8fc7\u5f02\u6b65\u5904\u7406\u548c\u6027\u80fd\u4f18\u5316\u6765\u63d0\u5347\u7f51\u7edc\u901a\u4fe1\u7684\u6548\u7387\u3002\u8fd9\u4e9b\u77e5\u8bc6\u5bf9\u4e8e\u5f00\u53d1\u8005\u6765\u8bf4\u81f3\u5173\u91cd\u8981，\u5b83\u4eec\u80fd\u591f\u5e2e\u52a9\u5f00\u53d1\u8005\u6784\u5efa\u66f4\u52a0\u5065\u58ee\u548c\u9ad8\u6548\u7684\u7f51\u7edc\u5e94\u7528\u3002 <\/p>\n

            5. Android\u7f51\u7edc\u6743\u9650\u4e0e\u5b89\u5168 <\/h2>\n

            5.1 Android\u7f51\u7edc\u6743\u9650\u914d\u7f6e <\/h3>\n

            5.1.1 AndroidManifest.xml\u4e2d\u7684\u7f51\u7edc\u6743\u9650\u914d\u7f6e <\/h4>\n

            \u5728Android\u5e94\u7528\u5f00\u53d1\u4e2d，\u7f51\u7edc\u6743\u9650\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6743\u9650\u914d\u7f6e，\u5b83\u5141\u8bb8\u5e94\u7528\u8bbf\u95ee\u7f51\u7edc\u3002\u5728 AndroidManifest.xml \u6587\u4ef6\u4e2d，\u9700\u8981\u58f0\u660e\u7f51\u7edc\u8bbf\u95ee\u6743\u9650，\u4ee5\u4fbf\u5e94\u7528\u53ef\u4ee5\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\u3002 <\/p>\n

            <uses-permission android:name="android.permission.INTERNET" \/><\/p>\n

            \u8fd9\u884c\u4ee3\u7801\u544a\u8bc9Android\u7cfb\u7edf，\u5e94\u7528\u9700\u8981\u8bbf\u95ee\u4e92\u8054\u7f51\u7684\u6743\u9650\u3002\u6ca1\u6709\u8fd9\u4e2a\u6743\u9650，\u5e94\u7528\u5c06\u65e0\u6cd5\u8fdb\u884c\u4efb\u4f55\u7f51\u7edc\u64cd\u4f5c\u3002 <\/p>\n

            5.1.2 \u52a8\u6001\u6743\u9650\u8bf7\u6c42\u673a\u5236 <\/h4>\n

            \u968f\u7740Android 6.0（API \u7ea7\u522b 23）\u7684\u53d1\u5e03，\u5f15\u5165\u4e86\u8fd0\u884c\u65f6\u6743\u9650\u7684\u6982\u5ff5\u3002\u5e94\u7528\u5728\u4f7f\u7528\u67d0\u4e9b\u5371\u9669\u6743\u9650（\u5982\u7f51\u7edc\u8bbf\u95ee）\u65f6，\u9700\u8981\u5728\u5e94\u7528\u8fd0\u884c\u65f6\u5411\u7528\u6237\u8bf7\u6c42\u8fd9\u4e9b\u6743\u9650\u3002\u8fd9\u4e00\u6b65\u9aa4\u5bf9\u4e8e\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u548c\u5e94\u7528\u5b89\u5168\u6027\u81f3\u5173\u91cd\u8981\u3002 <\/p>\n

            \u5f00\u53d1\u8005\u9700\u8981\u5728\u4ee3\u7801\u4e2d\u52a8\u6001\u68c0\u67e5\u548c\u8bf7\u6c42\u6743\u9650，\u7528\u6237\u6388\u6743\u540e，\u5e94\u7528\u624d\u80fd\u8bbf\u95ee\u7f51\u7edc\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u8bf7\u6c42\u7f51\u7edc\u6743\u9650\u7684\u793a\u4f8b\u4ee3\u7801： <\/p>\n

            if (ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.INTERNET)
            \n != PackageManager.PERMISSION_GRANTED) {
            \n \/\/ Permission is not granted
            \n ActivityCompat.requestPermissions(thisActivity,
            \n new String[]{Manifest.permission.INTERNET},
            \n MY_PERMISSIONS_REQUEST_INTERNET);
            \n}<\/p>\n

            \/\/ Result received from app user
            \n@Override
            \npublic void onRequestPermissionsResult(int requestCode,
            \n String permissions[], int[] grantResults) {
            \n switch (requestCode) {
            \n case MY_PERMISSIONS_REQUEST_INTERNET: {
            \n \/\/ If request is cancelled, the result arrays are empty.
            \n if (grantResults.length > 0
            \n && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            \n \/\/ permission was granted, yay! Do the
            \n \/\/ contacts-related task you need to do.
            \n } else {
            \n \/\/ permission denied, boo! Disable the
            \n \/\/ functionality that depends on this permission.
            \n }
            \n return;
            \n }<\/p>\n

            \/\/ other 'case' lines to check for other
            \n \/\/ permissions this app might request
            \n }
            \n}<\/p>\n

            \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u9996\u5148\u901a\u8fc7 checkSelfPermission \u65b9\u6cd5\u68c0\u67e5\u7f51\u7edc\u6743\u9650\u662f\u5426\u5df2\u7ecf\u88ab\u6388\u4e88\u3002\u5982\u679c\u6ca1\u6709，\u901a\u8fc7 requestPermissions \u65b9\u6cd5\u8bf7\u6c42\u6743\u9650\u3002\u7528\u6237\u540c\u610f\u6216\u62d2\u7edd\u540e，\u5e94\u7528\u4f1a\u6536\u5230\u4e00\u4e2a\u56de\u8c03，\u5728 onRequestPermissionsResult \u65b9\u6cd5\u4e2d\u5904\u7406\u7528\u6237\u7684\u9009\u62e9\u3002 <\/p>\n

            5.2 SSL\/TLS\u52a0\u5bc6\u901a\u4fe1 <\/h3>\n

            5.2.1 \u52a0\u5bc6\u901a\u4fe1\u7684\u5fc5\u8981\u6027 <\/h4>\n

            \u7f51\u7edc\u5b89\u5168\u662f\u79fb\u52a8\u5e94\u7528\u5f00\u53d1\u4e2d\u4e0d\u53ef\u5ffd\u89c6\u7684\u4e00\u90e8\u5206\u3002SSL（\u5b89\u5168\u5957\u63a5\u5c42）\u548cTLS（\u4f20\u8f93\u5c42\u5b89\u5168\u6027）\u662f\u7528\u4e8e\u7f51\u7edc\u5b89\u5168\u7684\u52a0\u5bc6\u534f\u8bae，\u5b83\u4eec\u53ef\u4ee5\u5e2e\u52a9\u4fdd\u62a4\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5b89\u5168\u3002 <\/p>\n

            \u5f53\u6570\u636e\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u65f6，\u5982\u672a\u7ecf\u52a0\u5bc6，\u5c31\u5bb9\u6613\u906d\u53d7\u4e2d\u95f4\u4eba\u653b\u51fb（MITM）\u7b49\u5b89\u5168\u5a01\u80c1\u3002SSL\/TLS\u4e3a\u901a\u4fe1\u53cc\u65b9\u63d0\u4f9b\u8eab\u4efd\u9a8c\u8bc1\u548c\u6570\u636e\u52a0\u5bc6\u670d\u52a1，\u786e\u4fdd\u4e86\u6570\u636e\u7684\u673a\u5bc6\u6027\u548c\u5b8c\u6574\u6027\u3002 <\/p>\n

            5.2.2 \u5b9e\u73b0SSL\/TLS\u52a0\u5bc6\u8fde\u63a5\u7684\u6b65\u9aa4 <\/h4>\n

            \u5728Android\u5e94\u7528\u4e2d\u5b9e\u73b0SSL\/TLS\u52a0\u5bc6\u8fde\u63a5，\u901a\u5e38\u9700\u8981\u4ee5\u4e0b\u6b65\u9aa4： <\/p>\n

          • \u5bfc\u5165SSL\u8bc1\u4e66 ：\u5c06\u670d\u52a1\u5668\u7684SSL\u8bc1\u4e66\u5bfc\u5165\u5230Android\u5e94\u7528\u4e2d，\u53ef\u4ee5\u662f\u8bc1\u4e66\u6587\u4ef6\u6216\u8005\u662f\u8bc1\u4e66\u7684\u4e8c\u8fdb\u5236\u5f62\u5f0f\u3002 <\/li>\n
          • \u914d\u7f6eHttpClient\u6216HttpURLConnection ：\u4f7f\u7528\u652f\u6301SSL\/TLS\u7684 HttpClient \u6216 HttpURLConnection \u5bf9\u8c61\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\u3002 <\/li>\n
          • \u6267\u884cSSL\u63e1\u624b ：\u5efa\u7acb\u8fde\u63a5\u540e，\u6267\u884cSSL\u63e1\u624b\u8fc7\u7a0b，\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\u548c\u5bc6\u94a5\u4ea4\u6362\u3002 <\/li>\n

            \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 HttpsURLConnection \u8fdb\u884cHTTPS\u8bf7\u6c42\u7684\u793a\u4f8b\u4ee3\u7801： <\/p>\n

            URL url = new URL("https:\/\/www.example.com\/");
            \nHttpsURLConnection conn = (HttpsURLConnection) url.openConnection();<\/p>\n

            \/\/ \u8bbe\u7f6e\u9ed8\u8ba4\u7684\u8bf7\u6c42\u5c5e\u6027
            \nconn.setRequestMethod("GET");
            \nconn.setReadTimeout(10000);
            \nconn.setConnectTimeout(15000);<\/p>\n

            \/\/ \u8fde\u63a5\u5e76\u6267\u884cHTTPS\u8bf7\u6c42
            \nconn.connect();<\/p>\n

            \/\/ \u5904\u7406\u54cd\u5e94
            \nInputStream in = new BufferedInputStream(conn.getInputStream());
            \nBufferedReader reader = new BufferedReader(new InputStreamReader(in));
            \nStringBuilder response = new StringBuilder();
            \nString line;
            \nwhile ((line = reader.readLine()) != null) {
            \n response.append(line);
            \n}
            \nreader.close();
            \nin.close();<\/p>\n

            \/\/ \u83b7\u53d6\u54cd\u5e94\u7801
            \nint responseCode = conn.getResponseCode();
            \nLog.d("HTTPSExample", "Response Code: " + responseCode);<\/p>\n

            \/\/ \u6253\u5370\u54cd\u5e94\u5185\u5bb9
            \nLog.d("HTTPSExample", "Response: " + response.toString());
            \nconn.disconnect();<\/p>\n

            \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d，\u4f7f\u7528 HttpsURLConnection \u521b\u5efa\u4e86\u4e00\u4e2aHTTPS\u8fde\u63a5\u5230\u6307\u5b9a\u7684URL\u3002\u7531\u4e8e\u4f7f\u7528HTTPS\u534f\u8bae，\u8fd9\u4e2a\u8fde\u63a5\u9ed8\u8ba4\u542f\u7528\u4e86SSL\/TLS\u52a0\u5bc6\u3002\u4ee3\u7801\u5757\u6267\u884c\u4e86\u7f51\u7edc\u8bf7\u6c42，\u5e76\u6253\u5370\u4e86\u54cd\u5e94\u7801\u548c\u54cd\u5e94\u5185\u5bb9\u3002 <\/p>\n

            \u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u53ef\u80fd\u9700\u8981\u8fdb\u4e00\u6b65\u5904\u7406SSL\u8bc1\u4e66\u7684\u9a8c\u8bc1，\u4f8b\u5982\u81ea\u5b9a\u4e49 TrustManager \u548c HostnameVerifier \u6765\u5141\u8bb8\u5e94\u7528\u63a5\u53d7\u4e0d\u53d7\u4fe1\u4efb\u7684\u8bc1\u4e66\u3002\u4f46\u662f，\u8fd9\u79cd\u505a\u6cd5\u4e0d\u63a8\u8350\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4f7f\u7528，\u56e0\u4e3a\u5b83\u4f1a\u964d\u4f4e\u5e94\u7528\u7684\u5b89\u5168\u6027\u3002\u6b63\u786e\u7684\u505a\u6cd5\u662f\u59cb\u7ec8\u4f7f\u7528\u6709\u6548\u7684SSL\u8bc1\u4e66，\u5e76\u786e\u4fdd\u5e94\u7528\u6b63\u786e\u5730\u9a8c\u8bc1\u8bc1\u4e66\u94fe\u3002 <\/p>\n

            6. Socket\u5fc3\u8df3\u673a\u5236\u4e0e\u5e94\u7528 <\/h2>\n

            \u5fc3\u8df3\u673a\u5236\u5728\u957f\u8fde\u63a5\u901a\u4fe1\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5b83\u662f\u7528\u6765\u68c0\u6d4b\u957f\u65f6\u95f4\u7a7a\u95f2\u7684\u8fde\u63a5\u662f\u5426\u8fd8\u5b58\u6d3b，\u4ee5\u53ca\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u7528\u6765\u7ef4\u62a4\u8fde\u63a5\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u7528\u6027\u7684\u4e00\u79cd\u673a\u5236\u3002\u672c\u7ae0\u8282\u6df1\u5165\u5206\u6790\u5fc3\u8df3\u673a\u5236\u7684\u5de5\u4f5c\u539f\u7406，\u5e76\u63a2\u8ba8\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u5404\u79cd\u4f7f\u7528\u573a\u666f\u3002 <\/p>\n

            6.1 \u4f7f\u7528TCP\u5fc3\u8df3\u673a\u5236 <\/h3>\n

            6.1.1 \u5fc3\u8df3\u673a\u5236\u7684\u5de5\u4f5c\u539f\u7406 <\/h4>\n

            \u5728TCP\/IP\u7f51\u7edc\u901a\u4fe1\u4e2d，\u5fc3\u8df3\u673a\u5236\u4e3b\u8981\u901a\u8fc7\u5b9a\u671f\u53d1\u9001\u7279\u5b9a\u7684\u6570\u636e\u5305，\u6765\u7ef4\u6301\u8fde\u63a5\u7684\u5b58\u6d3b\u72b6\u6001\u3002\u8fd9\u4e9b\u6570\u636e\u5305\u901a\u5e38\u5f88\u5c0f，\u5982\u4e00\u4e2a\u7b80\u5355\u7684ACK\u5305，\u4ee5\u51cf\u5c11\u7f51\u7edc\u5e26\u5bbd\u7684\u6d88\u8017\u3002\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u53cc\u65b9\u90fd\u4f1a\u53d1\u9001\u5fc3\u8df3\u5305，\u5e76\u671f\u671b\u5bf9\u65b9\u80fd\u591f\u54cd\u5e94\u3002\u5982\u679c\u5728\u9884\u5b9a\u7684\u65f6\u95f4\u5185\u6ca1\u6709\u6536\u5230\u5fc3\u8df3\u54cd\u5e94，\u5c31\u8ba4\u4e3a\u5bf9\u65b9\u53ef\u80fd\u5df2\u7ecf\u65ad\u5f00\u8fde\u63a5，\u8fd9\u65f6\u4f1a\u6839\u636e\u5fc3\u8df3\u673a\u5236\u7684\u7b56\u7565\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406，\u5982\u91cd\u8fde\u6216\u8005\u5173\u95ed\u8fde\u63a5\u3002 <\/p>\n

            6.1.2 \u5b9e\u73b0\u5fc3\u8df3\u673a\u5236\u7684\u65b9\u6cd5 <\/h4>\n

            \u5b9e\u73b0TCP\u5fc3\u8df3\u673a\u5236\u7684\u65b9\u6cd5\u6709\u591a\u79cd，\u4f46\u901a\u5e38\u4f1a\u5728\u5e94\u7528\u5c42\u5b9e\u73b0，\u4f8b\u5982： <\/p>\n

              \n
            • \u4f7f\u7528\u5b9a\u65f6\u4efb\u52a1（\u4f8b\u5982 ScheduledExecutorService ）\u6765\u5b9a\u671f\u53d1\u9001\u5fc3\u8df3\u5305\u3002 <\/li>\n
            • \u5728TCP\u8fde\u63a5\u5efa\u7acb\u540e，\u901a\u8fc7\u8bbe\u7f6eSO_KEEPALIVE\u9009\u9879，\u8ba9\u7cfb\u7edf\u81ea\u52a8\u7ef4\u62a4\u5fc3\u8df3\u5305\u7684\u53d1\u9001\u4e0e\u54cd\u5e94\u3002 <\/li>\n
            • \u5728\u6570\u636e\u4ea4\u4e92\u7684\u8fc7\u7a0b\u4e2d，\u5229\u7528\u7a7a\u95f2\u8fde\u63a5\u53d1\u9001\u5fc3\u8df3\u5305，\u5373\u5229\u7528TCP\u534f\u8bae\u672c\u8eab\u7279\u6027\u6765\u5b9e\u73b0\u3002 <\/li>\n<\/ul>\n

              \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684Java\u4ee3\u7801\u793a\u4f8b，\u5c55\u793a\u5982\u4f55\u4f7f\u7528 ScheduledExecutorService \u6765\u5b9e\u73b0\u5fc3\u8df3\u673a\u5236： <\/p>\n

              import java.util.concurrent.Executors;
              \nimport java.util.concurrent.ScheduledExecutorService;
              \nimport java.util.concurrent.TimeUnit;<\/p>\n

              public class HeartbeatManager {
              \n private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
              \n private final Runnable heartbeatTask = new Runnable() {
              \n @Override
              \n public void run() {
              \n \/\/ \u53d1\u9001\u5fc3\u8df3\u6570\u636e\u5305\u5230\u670d\u52a1\u5668
              \n sendHeartbeatPacket();
              \n \/\/ \u6839\u636e\u5b9e\u9645\u4e1a\u52a1，\u53ef\u80fd\u9700\u8981\u68c0\u67e5\u54cd\u5e94\u5e76\u5904\u7406
              \n }
              \n };<\/p>\n

              public void startHeartbeat(long period, TimeUnit unit) {
              \n scheduler.scheduleAtFixedRate(heartbeatTask, period, period, unit);
              \n }<\/p>\n

              private void sendHeartbeatPacket() {
              \n \/\/ \u5b9e\u73b0\u5fc3\u8df3\u5305\u7684\u53d1\u9001\u903b\u8f91
              \n }<\/p>\n

              \/\/ \u5176\u4ed6\u65b9\u6cd5
              \n}<\/p>\n

              \/\/ \u4f7f\u7528HeartbeatManager
              \nHeartbeatManager manager = new HeartbeatManager();
              \nmanager.startHeartbeat(30, TimeUnit.SECONDS); \/\/ \u6bcf30\u79d2\u53d1\u9001\u4e00\u6b21\u5fc3\u8df3<\/p>\n

              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a HeartbeatManager \u7c7b，\u5b83\u4f7f\u7528\u4e86\u4e00\u4e2a\u5b9a\u65f6\u4efb\u52a1\u6765\u5468\u671f\u6027\u5730\u53d1\u9001\u5fc3\u8df3\u5305\u3002\u8bf7\u6ce8\u610f，\u5b9e\u9645\u53d1\u9001\u5fc3\u8df3\u5305\u7684 sendHeartbeatPacket \u65b9\u6cd5\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u903b\u8f91\u6765\u5b9e\u73b0\u3002 <\/p>\n

              6.2 \u5b9e\u8df5\u4e2d\u7684\u5fc3\u8df3\u5e94\u7528 <\/h3>\n

              6.2.1 \u5fc3\u8df3\u673a\u5236\u5728Android\u4e2d\u7684\u5e94\u7528\u6848\u4f8b <\/h4>\n

              \u5728Android\u5f00\u53d1\u4e2d，\u5fc3\u8df3\u673a\u5236\u540c\u6837\u91cd\u8981，\u5c24\u5176\u662f\u5728\u4f7f\u7528WebSocket\u7b49\u957f\u8fde\u63a5\u6280\u672f\u65f6\u3002\u901a\u8fc7\u5b9a\u65f6\u53d1\u9001\u5fc3\u8df3\u5305，\u53ef\u4ee5\u5728\u7f51\u7edc\u73af\u5883\u4e0d\u7a33\u5b9a\u7684\u60c5\u51b5\u4e0b，\u53ca\u65f6\u53d1\u73b0\u5e76\u5904\u7406\u7f51\u7edc\u95ee\u9898，\u4ee5\u4fdd\u8bc1\u5e94\u7528\u7684\u7a33\u5b9a\u8fd0\u884c\u3002 <\/p>\n

              \u4e0b\u9762\u662f\u4e00\u4e2aAndroid\u4e2d\u7684\u5fc3\u8df3\u673a\u5236\u5b9e\u73b0\u793a\u4f8b： <\/p>\n

              import android.os.Handler;<\/p>\n

              public class TCPHeartbeat {
              \n private final Handler handler = new Handler();
              \n private final Runnable heartbeatRunnable = new Runnable() {
              \n @Override
              \n public void run() {
              \n \/\/ \u53d1\u9001\u5fc3\u8df3\u5305
              \n sendHeartbeatPacket();
              \n \/\/ \u91cd\u7f6e\u5b9a\u65f6\u5668
              \n resetHeartbeat();
              \n }
              \n };<\/p>\n

              public TCPHeartbeat() {
              \n resetHeartbeat();
              \n }<\/p>\n

              private void resetHeartbeat() {
              \n \/\/ \u6bcf30\u79d2\u53d1\u9001\u4e00\u6b21\u5fc3\u8df3
              \n handler.postDelayed(heartbeatRunnable, 30000);
              \n }<\/p>\n

              private void sendHeartbeatPacket() {
              \n \/\/ \u5b9e\u73b0\u5fc3\u8df3\u5305\u7684\u53d1\u9001\u903b\u8f91
              \n }<\/p>\n

              \/\/ \u9500\u6bc1\u65f6\u505c\u6b62\u5fc3\u8df3
              \n public void onDestroy() {
              \n handler.removeCallbacks(heartbeatRunnable);
              \n }<\/p>\n

              \/\/ \u5176\u4ed6\u65b9\u6cd5
              \n}<\/p>\n

              \u5728Android\u4e2d，\u901a\u5e38\u4f7f\u7528 Handler \u548c Runnable \u6765\u5b9e\u73b0\u5b9a\u65f6\u4efb\u52a1，\u5e76\u5728 onDestroy \u65b9\u6cd5\u4e2d\u53d6\u6d88\u5b9a\u65f6\u4efb\u52a1，\u4ee5\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u3002 <\/p>\n

              6.2.2 \u5fc3\u8df3\u9891\u7387\u7684\u8c03\u6574\u4e0e\u7f51\u7edc\u72b6\u51b5\u76d1\u6d4b <\/h4>\n

              \u5fc3\u8df3\u9891\u7387\u7684\u8bbe\u7f6e\u9700\u8981\u6839\u636e\u5b9e\u9645\u7684\u4e1a\u52a1\u9700\u6c42\u548c\u7f51\u7edc\u72b6\u51b5\u6765\u8c03\u6574\u3002\u5982\u679c\u5fc3\u8df3\u9891\u7387\u8bbe\u7f6e\u5f97\u8fc7\u9ad8，\u4f1a\u589e\u52a0\u7f51\u7edc\u7684\u8d1f\u8f7d；\u5982\u679c\u8bbe\u7f6e\u5f97\u8fc7\u4f4e，\u5219\u53ef\u80fd\u65e0\u6cd5\u53ca\u65f6\u53d1\u73b0\u8fde\u63a5\u95ee\u9898\u3002\u56e0\u6b64，\u5408\u7406\u7684\u5fc3\u8df3\u9891\u7387\u5bf9\u4e8e\u5fc3\u8df3\u673a\u5236\u7684\u6548\u7387\u548c\u7f51\u7edc\u8d44\u6e90\u7684\u5408\u7406\u5229\u7528\u81f3\u5173\u91cd\u8981\u3002 <\/p>\n

              \u53ef\u4ee5\u91c7\u7528\u52a8\u6001\u8c03\u6574\u5fc3\u8df3\u9891\u7387\u7684\u7b56\u7565，\u6839\u636e\u7f51\u7edc\u72b6\u51b5\u548c\u5386\u53f2\u8fde\u63a5\u7684\u7a33\u5b9a\u6027\u6765\u8c03\u6574\u5fc3\u8df3\u9891\u7387\u3002\u4f8b\u5982，\u5982\u679c\u4e00\u4e2a\u8fde\u63a5\u957f\u65f6\u95f4\u5904\u4e8e\u7a33\u5b9a\u7684\u7f51\u7edc\u73af\u5883\u4e0b，\u53ef\u4ee5\u9002\u5f53\u51cf\u5c11\u5fc3\u8df3\u9891\u7387；\u53cd\u4e4b，\u5982\u679c\u7f51\u7edc\u73af\u5883\u8f83\u5dee，\u53ef\u589e\u52a0\u5fc3\u8df3\u9891\u7387\u4ee5\u63d0\u9ad8\u8fde\u63a5\u7684\u53ef\u9760\u6027\u3002 <\/p>\n

              \u5fc3\u8df3\u673a\u5236\u7684\u5b9e\u65bd\u9700\u8981\u7efc\u5408\u8003\u8651\u591a\u65b9\u9762\u56e0\u7d20，\u5305\u62ec\u7f51\u7edc\u72b6\u51b5\u3001\u8bbe\u5907\u7535\u91cf\u3001\u6570\u636e\u4f20\u8f93\u91cf\u7b49，\u4ee5\u6b64\u6765\u5e73\u8861\u6027\u80fd\u4e0e\u8d44\u6e90\u6d88\u8017\u3002 <\/p>\n

              \u63a5\u4e0b\u6765，\u6211\u4eec\u5c06\u4f1a\u7ee7\u7eed\u6df1\u5165\u63a2\u8ba8Android\u4e2d\u7684\u7f51\u7edc\u6743\u9650\u4e0e\u5b89\u5168\u95ee\u9898\u3002 <\/p>\n

              7. \u7efc\u5408\u6848\u4f8b\u5206\u6790 <\/h2>\n

              7.1 \u7f51\u7edc\u8bf7\u6c42\u5e93\u7684\u9009\u62e9\u4e0e\u4f7f\u7528 <\/h3>\n

              7.1.1 \u7f51\u7edc\u8bf7\u6c42\u5e93\u7684\u5bf9\u6bd4 <\/h4>\n

              \u5728\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\u65f6，\u5f00\u53d1\u8005\u901a\u5e38\u4f1a\u9009\u62e9\u4e0d\u540c\u7684\u7f51\u7edc\u8bf7\u6c42\u5e93\u6765\u7b80\u5316\u5f00\u53d1\u5de5\u4f5c\u3002\u7f51\u7edc\u8bf7\u6c42\u5e93\u5982Apache HttpClient\u3001OkHttp\u3001Retrofit\u7b49\u5404\u6709\u7279\u70b9\u3002 <\/p>\n

                \n
              • Apache HttpClient \u662f\u4e00\u4e2a\u8f83\u4e3a\u4f20\u7edf\u7684HTTP\u5ba2\u6237\u7aef\u5e93，\u652f\u6301\u591a\u79cdHTTP\u534f\u8bae\u7684\u7279\u6027，\u4f46\u5176\u4f7f\u7528\u590d\u6742\u5ea6\u76f8\u5bf9\u8f83\u9ad8，\u4e14\u5728\u65b0\u7248\u672cJava\u4e2d\u4e0d\u662f\u9ed8\u8ba4\u652f\u6301\u3002 <\/li>\n
              • \n

                OkHttp \u662f\u4e00\u4e2a\u73b0\u4ee3\u7684\u7f51\u7edc\u8bf7\u6c42\u5e93，\u63d0\u4f9b\u4e86HTTP\/2\u652f\u6301\u4ee5\u53ca\u540c\u6b65\u3001\u5f02\u6b65\u8bf7\u6c42\u7684\u80fd\u529b\u3002\u5b83\u5728Android\u5f00\u53d1\u4e2d\u975e\u5e38\u53d7\u6b22\u8fce，\u6613\u4e8e\u4f7f\u7528，\u6027\u80fd\u4f18\u79c0\u3002 <\/p>\n<\/li>\n

              • \n

                Retrofit \u662f\u4e00\u4e2a\u7c7b\u578b\u5b89\u5168\u7684HTTP\u5ba2\u6237\u7aef，\u7531OkHttp\u63d0\u4f9b\u652f\u6301，\u4e3b\u8981\u4f18\u52bf\u662f\u5b83\u901a\u8fc7\u6ce8\u89e3\u7684\u65b9\u5f0f，\u5c06API\u63a5\u53e3\u548cHTTP\u8c03\u7528\u8fdb\u884c\u6620\u5c04，\u6781\u5927\u5730\u7b80\u5316\u4e86\u4ee3\u7801\u3002 <\/p>\n<\/li>\n<\/ul>\n

                \u6839\u636e\u9879\u76ee\u9700\u6c42\u3001\u5f00\u53d1\u5e73\u53f0\u548c\u56e2\u961f\u719f\u6089\u7a0b\u5ea6，\u5f00\u53d1\u8005\u53ef\u9009\u62e9\u9002\u5408\u7684\u7f51\u7edc\u8bf7\u6c42\u5e93\u3002\u4f8b\u5982\u5728Android\u5e73\u53f0\u4e0a，OkHttp\u548cRetrofit\u56e0\u5176\u7b80\u6d01\u7684API\u548c\u51fa\u8272\u7684\u6027\u80fd\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002 <\/p>\n

                7.1.2 \u5177\u4f53\u5e94\u7528\u5b9e\u4f8b\u5206\u6790 <\/h4>\n

                \u4ee5Retrofit\u4e3a\u4f8b，\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7f51\u7edc\u8bf7\u6c42\u793a\u4f8b： <\/p>\n

                \/\/ \u5b9a\u4e49\u4e00\u4e2aAPI\u63a5\u53e3
                \npublic interface ApiService {
                \n @GET("user\/{id}")
                \n Call<User> getUser(@Path("id") int userId);
                \n}<\/p>\n

                \/\/ \u521b\u5efaRetrofit\u5b9e\u4f8b
                \nRetrofit retrofit = new Retrofit.Builder()
                \n .baseUrl("https:\/\/api.example.com\/")
                \n .addConverterFactory(GsonConverterFactory.create())
                \n .build();<\/p>\n

                \/\/ \u521b\u5efaAPI\u63a5\u53e3\u5b9e\u4f8b
                \nApiService apiService = retrofit.create(ApiService.class);<\/p>\n

                \/\/ \u53d1\u8d77\u8bf7\u6c42\u83b7\u53d6\u7528\u6237\u4fe1\u606f
                \nCall<User> call = apiService.getUser(123);
                \ncall.enqueue(new Callback<User>() {
                \n @Override
                \n public void onResponse(Call<User> call, Response<User> response) {
                \n if (response.isSuccessful()) {
                \n User user = response.body();
                \n \/\/ \u5904\u7406\u83b7\u53d6\u5230\u7684\u7528\u6237\u4fe1\u606f
                \n }
                \n }<\/p>\n

                @Override
                \n public void onFailure(Call<User> call, Throwable t) {
                \n \/\/ \u5904\u7406\u8bf7\u6c42\u5931\u8d25\u60c5\u51b5
                \n }
                \n});<\/p>\n

                \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2aAPI\u63a5\u53e3，\u521b\u5efa\u4e86Retrofit\u5b9e\u4f8b，\u5e76\u6784\u5efa\u4e86\u4e00\u4e2aCall\u5bf9\u8c61\u6765\u53d1\u8d77\u7f51\u7edc\u8bf7\u6c42\u3002\u5229\u7528enqueue\u65b9\u6cd5\u8fdb\u884c\u5f02\u6b65\u8bf7\u6c42，\u5e76\u5728\u56de\u8c03\u63a5\u53e3\u4e2d\u5904\u7406\u54cd\u5e94\u7ed3\u679c\u3002 <\/p>\n

                7.2 \u5b8c\u6574\u7684Socket\u901a\u4fe1\u9879\u76ee\u6784\u5efa <\/h3>\n

                7.2.1 \u9879\u76ee\u9700\u6c42\u5206\u6790 <\/h4>\n

                \u6784\u5efa\u4e00\u4e2a\u57fa\u4e8eSocket\u7684\u7b80\u5355\u804a\u5929\u5e94\u7528，\u8be5\u5e94\u7528\u8981\u6c42\u5ba2\u6237\u7aef\u80fd\u591f\u8fde\u63a5\u670d\u52a1\u5668\u3001\u53d1\u9001\u6d88\u606f\u4ee5\u53ca\u63a5\u6536\u6765\u81ea\u670d\u52a1\u5668\u7684\u6d88\u606f\u3002\u8fd8\u9700\u8981\u8003\u8651\u5fc3\u8df3\u673a\u5236\u548c\u65ad\u7ebf\u91cd\u8fde\u7b49\u529f\u80fd\u4ee5\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002 <\/p>\n

                7.2.2 \u7cfb\u7edf\u8bbe\u8ba1\u4e0e\u5b9e\u73b0 <\/h4>\n

                \u7cfb\u7edf\u67b6\u6784 <\/h5>\n
                  \n
                • \u670d\u52a1\u5668\u7aef ：\u8d1f\u8d23\u76d1\u542c\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42，\u7ef4\u62a4\u5ba2\u6237\u7aef\u5217\u8868，\u8f6c\u53d1\u6d88\u606f\u7b49\u3002 <\/li>\n
                • \u5ba2\u6237\u7aef ：\u8d1f\u8d23\u7528\u6237\u754c\u9762\u5c55\u793a\u3001\u6d88\u606f\u53d1\u9001\u4e0e\u63a5\u6536\u5904\u7406\u7b49\u3002 <\/li>\n<\/ul>\n
                  \u5173\u952e\u7ec4\u4ef6\u5b9e\u73b0 <\/h5>\n

                  \u670d\u52a1\u5668\u7aef\u5b9e\u73b0 ： <\/p>\n

                  public class ChatServer {
                  \n private ServerSocket serverSocket;
                  \n private List<ClientHandler> clients = new ArrayList<>();<\/p>\n

                  public void start(int port) throws IOException {
                  \n serverSocket = new ServerSocket(port);
                  \n while (true) {
                  \n Socket clientSocket = serverSocket.accept();
                  \n ClientHandler handler = new ClientHandler(clientSocket);
                  \n clients.add(handler);
                  \n new Thread(handler).start();
                  \n }
                  \n }<\/p>\n

                  \/\/ \u5176\u4ed6\u65b9\u6cd5\u5982\u6d88\u606f\u5e7f\u64ad\u3001\u5fc3\u8df3\u68c0\u67e5\u7b49
                  \n}<\/p>\n

                  public class ClientHandler implements Runnable {
                  \n private Socket socket;
                  \n private PrintWriter out;
                  \n private BufferedReader in;<\/p>\n

                  public ClientHandler(Socket socket) throws IOException {
                  \n this.socket = socket;
                  \n out = new PrintWriter(socket.getOutputStream(), true);
                  \n in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                  \n }<\/p>\n

                  @Override
                  \n public void run() {
                  \n try {
                  \n String message;
                  \n while ((message = in.readLine()) != null) {
                  \n \/\/ \u5904\u7406\u63a5\u6536\u5230\u7684\u6d88\u606f
                  \n for(ClientHandler client : clients) {
                  \n client.out.println(message);
                  \n }
                  \n }
                  \n } catch (IOException e) {
                  \n \/\/ \u65ad\u7ebf\u5904\u7406\u903b\u8f91
                  \n } finally {
                  \n \/\/ \u5173\u95ed\u8d44\u6e90
                  \n }
                  \n }<\/p>\n

                  \/\/ \u53d1\u9001\u6d88\u606f\u65b9\u6cd5\u3001\u5fc3\u8df3\u68c0\u67e5\u7b49
                  \n}<\/p>\n

                  \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u670d\u52a1\u5668\u7aef\u901a\u8fc7 ServerSocket \u63a5\u6536\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42，\u5e76\u4e3a\u6bcf\u4e2a\u5ba2\u6237\u7aef\u521b\u5efa\u4e00\u4e2a ClientHandler \u7ebf\u7a0b\u6765\u5904\u7406\u6d88\u606f\u3002 ClientHandler \u5b9e\u73b0\u4e86 Runnable \u63a5\u53e3，\u5904\u7406\u6d88\u606f\u53d1\u9001\u4e0e\u63a5\u6536\u3002 <\/p>\n

                  \u5ba2\u6237\u7aef\u5b9e\u73b0 ： <\/p>\n

                  public class ChatClient {
                  \n private Socket socket;
                  \n private PrintWriter out;
                  \n private BufferedReader in;
                  \n private BufferedReader stdIn;<\/p>\n

                  public void connect(String host, int port) throws IOException {
                  \n socket = new Socket(host, port);
                  \n out = new PrintWriter(socket.getOutputStream(), true);
                  \n in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                  \n stdIn = new BufferedReader(new InputStreamReader(System.in));
                  \n \/\/ \u542f\u52a8\u8bfb\u53d6\u670d\u52a1\u5668\u6d88\u606f\u7684\u7ebf\u7a0b
                  \n new Thread(() -> {
                  \n try {
                  \n String message;
                  \n while ((message = in.readLine()) != null) {
                  \n \/\/ \u663e\u793a\u6d88\u606f\u5230\u754c\u9762\u4e0a
                  \n }
                  \n } catch (IOException e) {
                  \n \/\/ \u65ad\u7ebf\u5904\u7406\u903b\u8f91
                  \n }
                  \n }).start();
                  \n }<\/p>\n

                  public void sendMessage(String message) {
                  \n out.println(message);
                  \n }<\/p>\n

                  \/\/ \u53d1\u9001\u6d88\u606f\u3001\u5fc3\u8df3\u673a\u5236\u7b49\u5176\u4ed6\u529f\u80fd
                  \n}<\/p>\n

                  \u5728\u5ba2\u6237\u7aef\u4ee3\u7801\u4e2d，\u6211\u4eec\u521b\u5efa\u4e86\u4e0e\u670d\u52a1\u5668\u7aef\u901a\u4fe1\u7684Socket\u8fde\u63a5，\u5e76\u901a\u8fc7\u8f93\u5165\u8f93\u51fa\u6d41\u4e0e\u670d\u52a1\u5668\u4ea4\u6362\u6570\u636e\u3002\u540c\u65f6，\u542f\u52a8\u4e00\u4e2a\u5355\u72ec\u7684\u7ebf\u7a0b\u7528\u4e8e\u76d1\u542c\u670d\u52a1\u5668\u7684\u6d88\u606f\u3002 <\/p>\n

                  \u901a\u8fc7\u672c\u7ae0\u7684\u5b66\u4e60，\u8bfb\u8005\u4e0d\u4ec5\u80fd\u591f\u4e86\u89e3\u5230\u7f51\u7edc\u8bf7\u6c42\u5e93\u7684\u9009\u53d6\u4e0e\u5e94\u7528，\u8fd8\u80fd\u591f\u638c\u63e1\u5982\u4f55\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u57fa\u4e8eSocket\u7684\u901a\u4fe1\u5e94\u7528，\u4ece\u57fa\u7840\u7684\u7f16\u7a0b\u6280\u80fd，\u5230\u9762\u5bf9\u771f\u5b9e\u9879\u76ee\u4e2d\u7684\u5177\u4f53\u9700\u6c42，\u90fd\u9700\u8981\u6309\u7167\u9700\u6c42\u5206\u6790\u3001\u7cfb\u7edf\u8bbe\u8ba1\u3001\u7f16\u7801\u5b9e\u73b0\u7b49\u9010\u6b65\u8fdb\u884c\u3002 <\/p>\n

                  \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\"<\/p>\n

                  \u7b80\u4ecb：Android\u5f00\u53d1\u4e2d，\u8bbe\u5907\u4e0e\u670d\u52a1\u5668\u7684\u4ea4\u4e92\u4e3b\u8981\u7528\u4e8e\u5b9e\u73b0\u6570\u636e\u7684\u53d1\u9001\u548c\u63a5\u6536，\u5982\u767b\u5f55\u9a8c\u8bc1\u548c\u5b9e\u65f6\u901a\u4fe1\u7b49\u3002\u672c\u6587\u4e3b\u8981\u63a2\u8ba8\u901a\u8fc7Socket\u7f16\u7a0b\u5b9e\u73b0Android\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u5185\u5bb9\u5305\u62ecHTTP\/HTTPS\u534f\u8bae\u548cSocket\u7f16\u7a0b\u57fa\u7840，Android\u4e2dSocket\u7684\u5b9e\u73b0\u7ec6\u8282，\u4ee5\u53caSocket\u8fde\u63a5\u7684\u5f02\u5e38\u5904\u7406\u3001\u6743\u9650\u8bbe\u7f6e\u3001\u5f02\u6b65\u5904\u7406\u548c\u5b89\u5168\u901a\u4fe1\u7b49\u4f18\u5316\u63aa\u65bd\u3002 <\/p>\n

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