{"id":74619,"date":"2026-02-10T08:57:44","date_gmt":"2026-02-10T00:57:44","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/74619.html"},"modified":"2026-02-10T08:57:44","modified_gmt":"2026-02-10T00:57:44","slug":"tcp%e5%92%8cudp%e7%9a%84%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e6%9e%84%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/74619.html","title":{"rendered":"TCP\u548cUDP\u7684\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u6784\u5efa"},"content":{"rendered":"

UDP\u7f51\u7edc\u534f\u8bae\u4e0eTCP\u7f51\u7edc\u534f\u8bae\u7684\u533a\u522b<\/h2>\n

UDP\u548cTCP\u662f\u4f20\u8f93\u5c42\u7684\u4e24\u79cd\u91cd\u8981\u7684\u7f51\u7edc\u4f20\u8f93\u534f\u8bae，\u5979\u4e24\u6709\u7740\u76f8\u4f3c\u4e4b\u5904，\u4f46\u4e5f\u6709\u7740\u4e0d\u540c\u4e4b\u5904，\u5728\u4f20\u8f93\u5c42\u7684\u4f20\u8f93\u4e2d\u5404\u81ea\u8d77\u7740\u4e0d\u540c\u7684\u4f5c\u7528<\/p>\n

\u4e3b\u8981\u6982\u62ec<\/h3>\n

TCP：\u6709\u8fde\u63a5，\u53ef\u9760\u4f20\u8f93，\u9762\u5411\u5b57\u8282\u6d41，\u5168\u53cc\u5de5；<\/p>\n

UDP：\u65e0\u8fde\u63a5，\u4e0d\u53ef\u9760\u4f20\u8f93，\u9762\u5411\u6570\u636e\u62a5，\u5168\u53cc\u5de5；<\/p>\n

\u6982\u5ff5\u4ecb\u7ecd<\/h3>\n

\u8fde\u63a5<\/h4>\n

\u8fd9\u91cc\u7684\u8fde\u63a5\u53ea\u662f\u4e00\u4e2a\u62bd\u8c61\u7684\u6982\u5ff5，\u5c31\u597d\u6bd4\u4f60\u548c\u4f60\u8001\u5a46\u7684\u7ed3\u5a5a\u8bc1，\u8fde\u63a5\u7740\u4f60\u4eec\u5f7c\u6b64\u4e00\u6837 \u3002<\/p>\n

\u5bf9\u4e8eTCP\u7684\u8fde\u63a5\u800c\u8a00，\u4e5f\u662f\u5982\u6b64\u7684\u62bd\u8c61\u8fde\u63a5，A\u548cB\u901a\u4fe1，A\u548cB\u5148\u5efa\u7acb\u8fde\u63a5，\u8ba9A\u4fdd\u5b58B\u7684\u4fe1\u606f，B\u4fdd\u5b58A\u7684\u4fe1\u606f（\u5f7c\u6b64\u4e4b\u95f4\u77e5\u9053，\u8c01\u548c\u4ed6\u5efa\u7acb\u4e86\u8fde\u63a5\u5173\u7cfb），\u7b80\u5355\u70b9\u6765\u8bf4\u5c31\u662fTCP\u7684\u8fde\u63a5\u9700\u8981 \u201d\u4e09\u6b21\u63e1\u624b\u201c\u540e\u624d\u786e\u5b9a\u4f60\u80fd\u53d1\u9001\u6570\u636e，\u5f53\u5bf9\u65b9\u65ad\u5f00\u8fde\u63a5\u5c31\u4e0d\u80fd\u53d1\u9001\u6d88\u606f\u4e86<\/p>\n

UDP\u662f\u65e0\u8fde\u63a5\u7684，\u4ed6\u5e76\u4e0d\u4fdd\u5b58\u5bf9\u65b9\u7684\u4fe1\u606f，\u5c31\u662f\u6211\u53d1\u6211\u7684，\u4e0d\u7ba1\u5bf9\u65b9\u662f\u5426\u8fde\u63a5，\u60f3\u53d1\u5c31\u53d1，\u4e0d\u7ba1\u5bf9\u65b9\u72b6\u6001\u600e\u4e48\u6837\u3002<\/p>\n

\u53ef\u9760\u4f20\u8f93<\/h4>\n

TCP\u662f\u53ef\u9760\u4f20\u8f93\u7684，\u662f\u7f51\u7edc\u5c42\u515c\u5e95\u7684\u4fdd\u969c\u673a\u5236，\u4e5f\u5c31\u662f\u8bf4\u5b83\u4e0d\u4f1a\u53d1\u9001\u5b8c\u6570\u636e\u5c31\u7acb\u5373\u7ed3\u675f，\u800c\u662f\u7b49\u5bf9\u65b9\u56de\u590d\u4e86\u201d\u6536\u5230\u4e86\u201c\u624d\u4f1a\u7ed3\u675f，\u800c\u4e14\u5982\u679c\u6570\u636e\u53d1\u9001\u7684\u6df7\u4e71\u4e86\u8fd8\u4f1a\u6392\u597d\u5e8f\u5728\u9001\u5230\u5bf9\u65b9\u624b\u4e0a；<\/p>\n

UDP\u662f\u4e0d\u53ef\u9760\u4f20\u8f93，\u4f20\u8f93\u51fa\u53bb\u7684\u6570\u636e\u4ed6\u5c31\u4e0d\u7ba1\u4e86，\u5373\u4f7f\u5bf9\u65b9\u672a\u63a5\u6536\u5230\u4e5f\u505c\u6b62\u53d1\u9001\u4e86\u3002<\/p>\n

\u9762\u5411\u5b57\u8282\u6d41\u548c\u9762\u5411\u6570\u636e\u62a5<\/h4>\n

TCP\u4f7f\u7528\u7684\u662f\u9762\u5411\u5b57\u8282\u6d41，\u9762\u5411\u5b57\u8282\u6d41\u5c31\u662f\u53d1\u9001100\u4e2a\u5b57\u8282\u6570\u636e，\u53ef\u4ee5\u5411\u6d41\u6c34\u4e00\u6837\u5148 10\u4e2a10\u4e2a\u7684\u53d1\u9001\u4e5f\u53ef\u4ee5100\u4e2a\u76f4\u63a5\u5168\u90e8\u53d1\u9001\u3002<\/p>\n

UDP\u662f\u9762\u5411\u6570\u636e\u62a5\u53d1\u9001\u7684，\u4e5f\u5c31\u662f\u8bf4UDP\u662f\u4ee5\u6570\u636e\u62a5\u7684\u65b9\u5f0f\u628a\u6bcf\u6b21\u53d1\u4e00\u4e2a\u6570\u636e\u5305\u7684\u5355\u4f4d\u6570\u636e，\u63a5\u6536\u65b9\u4e5f\u662f\u4ee5\u4e00\u4e2a\u6570\u636e\u62a5\u4e3a\u5355\u4f4d\u7684\u63a5\u6536<\/p>\n

\u5168\u53cc\u5de5<\/h4>\n

TCP\u548cUDP\u90fd\u4e3a\u5168\u53cc\u5de5，\u5168\u53cc\u5de5\u7684\u610f\u601d\u662f\u53d1\u9001\u6570\u636e\u548c\u63a5\u6536\u6570\u636e\u662f\u53ef\u4ee5\u4e00\u8d77\u5b8c\u6210\u7684，\u8fd8\u6709\u4e00\u4e2a\u534a\u5168\u53cc\u5de5，\u534a\u5168\u53cc\u5de5\u5c31\u548c\u5168\u53cc\u5de5\u76f8\u53cd，\u5b83\u53ea\u80fd\u5b8c\u6210\u53d1\u9001\u6570\u636e\u6216\u8005\u63a5\u6536\u6570\u636e，\u4e8c\u8005\u4e0d\u80fd\u76f8\u4e92\u5b8c\u6210\u3002<\/p>\n

\u670d\u52a1\u5668\u7684\u6784\u5efa<\/h3>\n

UDP\u7684\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u6784\u5efa<\/h3>\n

\u9996\u5148\u8bb2\u8bb2UDP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7684\u6784\u5efa\u7684\u4e24\u4e2a\u7c7b：DatagramSocket（）\u548cDatagramPacket（）<\/p>\n<\/p>\n

\"\"<\/p>\n

DatagramSocket\u7c7b\u6709\u4e24\u4e2a\u6784\u9020\u65b9\u6cd5，\u7b2c\u4e00\u4e2a\u662f\u65e0\u53c2\u7248\u672c\u7684\u6784\u9020\u65b9\u6cd5，\u8fd9\u4e2a\u65e0\u53c2\u7248\u672c\u7684\u6784\u9020\u65b9\u6cd5\u662f\u4ee3\u8868\u8ba9\u7cfb\u7edf\u7ed9\u4f60\u4e00\u4e2a\u6ca1\u6709\u4f7f\u7528\u7684\u7aef\u53e3，\u7b2c\u4e8c\u4e2a\u662f\u6709\u53c2\u7248\u672c\u7684，\u662f\u81ea\u5df1\u6307\u5b9a\u4e00\u4e2a\u7aef\u53e3\"\"<\/p>\n

DatagramSocket\u4e3b\u8981\u6709\u4e09\u4e2a\u65b9\u6cd5，\u7b2c\u4e09\u4e2a\u5c31\u65e0\u9700\u591a\u8a00\u4e86，\u5173\u95ed\u8d44\u6e90；receive\u65b9\u6cd5\u5462\u662f\u7528\u6765\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\u7684（\u65e0\u6570\u636e\u4f20\u5165\u65f6\u4f1a\u4ea7\u751f\u5835\u585e），\u5f53\u7136\u4ed6\u62ff\u5230\u7684\u6570\u636e\u5c31\u662f\u4e8c\u8fdb\u5236\u7684；send\u65b9\u6cd5\u5c31\u662f\u53d1\u9001\u6570\u636e\u7684（\u65e0\u5835\u585e）\u3002<\/p>\n

\"\"<\/p>\n

\u8fd9\u4e2aDatagramPacket\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\u5f88\u591a，\u8fd9\u91cc\u5148\u8bb2\u4e24\u4e2a，\u7b2c\u4e00\u4e2a\u662fnew\u4e00\u4e2abyte\u6570\u7ec4\u5e76\u6307\u5b9aint length\u7684\u957f\u5ea6\u3002\u7b2c\u4e8c\u4e2a\u5c31\u662f\u6784\u9020\u4e00\u4e2abyte\u6570\u7ec4，\u5e76\u628a\u76ee\u7684\u7aef\u53e3\u7684\u7aef\u53e3\u53f7\u548cIP\u4f20\u7ed9\u4f20\u7ed9DatagramPacket<\/p>\n

UDP\u7684\u670d\u52a1\u5668\u6784\u5efa<\/h3>\n

\"\"<\/p>\n

\u9996\u5148\u662f\u8fd9\u6784\u9020\u65b9\u6cd5\u7684\u6784\u5efa，\u8fd9\u91cc\u4e3a\u4ec0\u4e48\u8981\u6307\u5b9a\u7aef\u53e3\u53f7\u5462？\u4e3a\u4e86\u8ba9\u5ba2\u6237\u7aef\u901a\u8fc7\u8fd9\u4e2a\u7aef\u53e3\u53f7\u627e\u5230\u8fd9\u4e2a\u670d\u52a1\u5668\u3002<\/p>\n

\"\"<\/p>\n

\u8fd9\u4e2a\u662f\u8fd9\u4e2a\u670d\u52a1\u5668\u7684\u6838\u5fc3\u4ee3\u7801，\u6211\u4eec\u6765\u4e00\u4e00\u8bb2\u89e3：<\/p>\n

while（true）\u5faa\u73af\u662f\u4e3a\u4e86\u8ba9\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e8c\u8005\u80fd\u4ea4\u4e92\u591a\u6b21，\u800c\u4e0d\u662f\u4ea4\u4e92\u4e00\u6b21\u5c31\u7ed3\u675f\u3002<\/p>\n

DatagramPacket requestPacker = new DatagramPacket(new byte[4096],4096);
\nsocket.receive(requestPacker);<\/p>\n

\u8fd9\u4e2a\u65b9\u6cd5\u5148\u6784\u5efa\u4e86\u4e00\u4e2a\u5e26\u6709byte[]\u7684\u5bf9\u8c61，\u662f\u4e3a\u4e86\u8ba9socket.receive(requestPacker)\u628a\u63a5\u6536\u5230\u7684\u6570\u636e\u4f20\u7ed9requestPacker\u7c7b\u4e2d\u7684byte[]\u91cc\u8fb9\u53bb；\u524d\u8fb9\u6211\u4eec\u4e5f\u8bf4\u8fc7receive\u662f\u7528\u6765\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u8fc7\u6765\u7684\u8bf7\u6c42\u7684\u3002<\/p>\n

String request = new String(requestPacker.getData(),0,requestPacker.getLength());<\/p>\n

\u8fd9\u4e2a\u5462\u662f\u628a\u63a5\u6536\u5230\u7684\u6570\u636e\u8d4b\u503c\u7ed9request，\u4e3a\u4ec0\u4e48\u8981\u8fd9\u6837\u5b50\u5462？\u6211\u4eec\u77e5\u9053\u6570\u636e\u53d1\u9001\u8fc7\u6765\u7684\u662f\u4e8c\u8fdb\u5236\u6570\u636e，\u800c\u6211\u4eec\u8981\u628a\u4e8c\u8fdb\u5236\u6570\u636e\u8f6c\u6362\u6210\u5b57\u7b26\u4e32，\u8fd9\u6837\u8d4b\u503cString\u53ef\u4ee5\u628a\u4e8c\u8fdb\u5236\u7684\u6570\u636e\u8f6c\u6362\u672a\u5b57\u7b26\u4e32\u3002requestPacker.getData()\u8fd9\u4e2a\u662f\u8bfb\u53d6\u6570\u636e\u7684\u56e0\u4e3abyte\u6709\u53ef\u80fd\u4f1a\u6709\u5f88\u591a\u7a7a\u503c\u5168\u90e8\u63a5\u6536\u4f1a\u5360\u7a7a\u95f4\u6240\u4ee5\u4f7f\u7528\u4e86\u201d0,requestPacker.getLength()\u201c<\/p>\n

String response = process(request);
\nprivate String process(String request) {
\n return request;
\n}<\/p>\n

\u8fd9\u4e2a\u5462\u56e0\u4e3a\u6211\u4eec\u53ea\u662f\u7b80\u5355\u7684\u505a\u4e00\u4e2a\u56de\u58f0，\u6240\u4ee5\u76f4\u63a5\u8fd4\u56de，\u4f46\u5982\u679c\u60f3\u8981\u589e\u52a0\u4e1a\u52a1\u7684\u903b\u8f91\u8fd9\u91cc\u662f\u6700\u590d\u6742\u7684，\u670d\u52a1\u5668\u7684\u4e1a\u52a1\u4e5f\u662f\u5728\u8fd9\u91cc\u5199\u7684\u3002<\/p>\n

DatagramPacket datagramPacket = newDatagramPacket(response.getBytes(),response.getBytes().length,
\n requestPacker.getSocketAddress());<\/p>\n

\u8fd9\u4e2a\u5bf9\u8c61\u662fDatagramPacket\u7684\u53e6\u4e00\u79cd\u4f20\u53c2\u65b9\u5f0f，response.getBytes()\u8fd9\u4e2a\u662f\u628aresponse\u7684\u6570\u636e\u4f20\u7ed9datagramPacket，response.getBytes().length\u8fd9\u4e2a\u662f\u786e\u4fdd\u4f20\u7684\u6570\u636e\u957f\u5ea6， requestPacker.getSocketAddress()\u8fd9\u4e2a\u662f\u4f20\u5165\u6e90\u7aef\u53e3\u548c\u6e90IP，\u8fd9\u91cc\u7684\u6e90\u7aef\u53e3\u548c\u6e90IP\u90fd\u662f\u5168\u7ed9\u4ed6\u7684\u5ba2\u6237\u7aef\u7684，\u56e0\u4e3a\u6211\u4eec\u662f\u628a\u6570\u636e\u4f20\u56de\u53bb\u7ed9\u4ed6！！！<\/p>\n

System.out.printf("[%s:%d] req: %s, resp: %s\\\\n", requestPacker.getAddress().toString(), requestPacker.getPort(),
\n request, response);<\/p>\n

\u6700\u540e\u8fd9\u4e2a\u5c31\u5f88\u7b80\u5355\u4e86，\u5c31\u662f\u6253\u5370\u4e00\u4e0b\u5ba2\u6237\u7aef\u7684IP\u548c\u7aef\u53e3\u7b49<\/p>\n

UDP\u5ba2\u6237\u7aef\u7684\u6784\u5efa<\/h3>\n

\"\"<\/p>\n

\u9996\u5148\u662f\u6784\u9020\u65b9\u6cd5\u7684\u6784\u5efa，\u56e0\u4e3a\u5ba2\u6237\u7aef\u9700\u8981\u63d0\u4f9b\u76ee\u7684IP\u548c\u8981\u8bbf\u95ee\u7684\u670d\u52a1\u5668\u7684\u76ee\u7684\u7aef\u53e3，\u6240\u4ee5\u5728\u8fd9\u91cc\u8981\u5148\u628a\u8fd9\u4e24\u4e2a\u7ed9\u8bbe\u8ba1\u597d，\u5ba2\u6237\u7aef\u7684\u7aef\u53e3\u53f7\u5c31\u7531\u7cfb\u7edf\u968f\u673a\u4ea7\u751f\u4e00\u4e2a\u5c31\u597d\u4e86，\u6bd5\u7adf\u5ba2\u6237\u7aef\u662f\u7ed9\u5ba2\u6237\u7528\u7684，\u6ca1\u5fc5\u8981\u8ba9\u7528\u6237\u8f93\u5165，\u7aef\u53e3\u53f7\u91cd\u590d\u9020\u6210\u6ca1\u5fc5\u8981\u7684\u95ee\u9898\u3002\"\"<\/p>\n

\u8fd9\u91cc\u5462\u662f\u5ba2\u6237\u7aef\u7684\u6838\u5fc3\u4ee3\u7801，\u4e0b\u9762\u6211\u4eec\u4e00\u4e00\u89e3\u91ca：<\/p>\n

while（true）\u6b7b\u5faa\u73af\u548c\u670d\u52a1\u5668\u4e00\u6837，\u8ba9\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u8fde\u63a5\u4e00\u6b21\u5373\u53ef\u91cd\u590d\u4f7f\u7528<\/p>\n

System.out.println("\u8bf7\u8f93\u5165\u8981\u53d1\u9001\u7684\u5185\u5bb9：");
\nif(!sc.hasNext()){
\n break;
\n}
\nString request = sc.next();<\/p>\n

\u8fd9\u4e2a\u5462\u5c31\u662f\u8ba9\u5ba2\u6237\u8f93\u5165\u5185\u5bb9，\u5982\u679c\u5ba2\u6237\u6ca1\u8f93\u5165\u5219\u9000\u51fa\u3002<\/p>\n

DatagramPacket requestPacket = new DatagramPacket(request.getBytes(), request.getBytes().length
\n , InetAddress.getByName(serverIP), serverPort);<\/p>\n

\u8fd9\u4e2a\u5462\u5c31\u662f\u76f8\u5f53\u4e8e\u628a\u5ba2\u6237\u8f93\u5165\u7684\u6570\u636e\u6253\u5305，request.getBytes(), request.getBytes().length\u8fd9\u4e2a\u662f\u83b7\u53d6\u7528\u6237\u8f93\u5165\u7684\u6570\u636e，\u5e76\u6307\u5b9a\u957f\u5ea6\u81f3\u6709\u6548\u6570\u636e，InetAddress.getByName(serverIP)\u8fd9\u4e2a\u662f\u628a\u76ee\u7684IP\u4f20\u7ed9requestPacket，serverPort\u8fd9\u4e2a\u662f\u628a\u76ee\u7684\u7aef\u53e3\u4f20\u7ed9requestPacket<\/p>\n

socket.send(requestPacket);<\/p>\n

\u8fd9\u4e2a\u662f\u628a\u6570\u636e\u53d1\u9001\u51fa\u53bb<\/p>\n

DatagramPacket datagramPacket = new DatagramPacket(new byte[4096], 4096);
\nsocket.receive(datagramPacket);<\/p>\n

\u8fd9\u4e2a\u662f\u628a\u63a5\u6536\u6570\u636e\u5e76\u628a\u6570\u636e\u4f20\u7ed9byte[]\u6570\u7ec4\u3002<\/p>\n

String str = new String(datagramPacket.getData(), 0, datagramPacket.getLength());<\/p>\n

\u8fd9\u4e2a\u662f\u628a\u63a5\u6536\u5230\u7684\u6570\u636e\u8f6c\u5316\u6210\u5b57\u7b26\u4e32，\u8f6c\u5316\u7684\u89c4\u5b9a\u548c\u670d\u52a1\u5668\u4e00\u6837\u3002<\/p>\n

System.out.println(str);<\/p>\n

\u6700\u540e\u5728\u6253\u5370\u63a5\u6536\u7684\u6570\u636e\u3002<\/p>\n

TCP\u7684\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7684\u6784\u5efa<\/h3>\n

TCP\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7684\u6784\u5efa\u6d89\u53ca\u5230\u4e24\u4e2a\u65b9\u6cd5：ServerSocker\u548cSocker\u4e24\u4e2a\u65b9\u6cd5，\u5176\u4e2dServerSocker\u662f\u63d0\u4f9b\u7ed9\u670d\u52a1\u5668\u4f7f\u7528\u7684，Socker\u7c7b\u662f\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u5171\u540c\u4f7f\u7528\u7684\u3002<\/p>\n

ServerSocker<\/h4>\n

\"\"<\/p>\n

ServerSocker\u8fd9\u4e2a\u65b9\u6cd5\u7684\u6784\u9020\u65b9\u6cd5\u548cUDP\u7684DatagramSocket（）\u6709\u6240\u4e0d\u540c，\u56e0\u4e3aServerSocker\u662f\u63d0\u4f9b\u7ed9\u670d\u52a1\u5668\u4f7f\u7528\u7684\u6545\u800c\u5fc5\u987b\u6307\u5b9a\u4e00\u4e2a\u7aef\u53e3\u53f7\u3002<\/p>\n

\"\"<\/p>\n

ServerSocker\u6784\u5efa\u670d\u52a1\u5668\u65f6\u6709\u4e24\u4e2a\u65b9\u6cd5：accept\u548cclose，close\u65b9\u6cd5\u5c31\u4e0d\u518d\u591a\u8a00\u4e86，\u4ed6\u662f\u5173\u95ed\u8d44\u6e90\u7684，\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5f00\u652f；accept\u5c31\u548cDatagramSocket（）\u7684receive\u5dee\u4e0d\u591a\u7528\u6765\u4e0e\u5ba2\u6237\u7aef\u8fde\u63a5，\u8fd4\u56de\u4e00\u4e2aSocker\u7684\u6570\u636e\u3002<\/p>\n

Socker\"\"<\/h4>\n

Soker\u7684\u6784\u9020\u65b9\u6cd5\u5462\u4e3b\u8981\u7528\u4e8e\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668，\u4ed6\u7684\u6784\u9020\u65b9\u6cd5\u4e3b\u8981\u7528\u4e8e\u5ba2\u6237\u7aef，\u4f20\u5165\u670d\u52a1\u5668\u7684IP\u548c\u7aef\u53e3\u53f7，\u4e5f\u5c31\u662f\u76ee\u7684IP\u548c\u76ee\u7684\u7aef\u53e3\u53f7\u3002\"\"<\/p>\n

Socker\u6709\u4ee5\u4e0b\u4e09\u4e2a\u65b9\u6cd5，getInetAddress（）\u3001getINputStream\u548cgetOutStream\u4e09\u4e2a\u65b9\u6cd5，\u540e\u4e24\u4e2a\u4e2a\u65b9\u6cd5\u5462\u5c31\u662f\u7528\u4e8e\u63a5\u6536\u6570\u636e\u548c\u4f20\u8f93\u6570\u636e\u7684，\u7b2c\u4e00\u4e2a\u7528\u5230\u7684\u65f6\u5019\u5728\u8bb2\u3002<\/p>\n

TCP\u670d\u52a1\u5668\u7684\u6784\u5efa\"\"TCP\u670d\u52a1\u5668\u7684\u6784\u9020\u65b9\u6cd5\u8fd8\u662f\u548cUDP\u4e00\u6837，\u6307\u5b9a\u4e00\u4e2a\u7aef\u53e3\u53f7\u3002<\/p>\n

\"\"<\/p>\n

\u8fd9\u4e2a\u662f\u4f7f\u7528\u670d\u52a1\u5668\u7684\u65b9\u6cd5<\/p>\n

ExecutorService executorService = Executors.newCachedThreadPool();<\/p>\n

\u8fd9\u4e2a\u662f\u4f7f\u7528\u4e86\u7ebf\u7a0b\u6c60，\u800c\u8fd9\u4e2a\u7ebf\u7a0b\u6c60\u662f\u6ca1\u6709\u6307\u5b9a\u6838\u5fc3\u6570\u4e0e\u975e\u6838\u5fc3\u6570\u7b49\u53c2\u6570\u7684，\u5b83\u4ee3\u8868\u7740\u6709\u5ba2\u6237\u7aef\u53d1\u8d77\u8bf7\u6c42\u5c31\u4f1a\u521b\u5efa\u7ebf\u7a0b，\u5f53\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u7ec8\u6b62\u65f6\u7ebf\u7a0b\u4e5f\u4f1a\u8ddf\u7740\u9500\u6bc1\u3002<\/p>\n

while（true）\u6b7b\u5faa\u73af\u662f\u4e3a\u4e86\u8ba9\u670d\u52a1\u5668\u80fd\u7ed9\u591a\u4e2a\u5ba2\u6237\u7aef\u670d\u52a1，\u800c\u4e0d\u662f\u53ea\u5171\u7ed9\u51e0\u4e2a\u4eba\u4f7f\u7528\u3002<\/p>\n

Socket socket = serverSocket.accept();<\/p>\n

\u8fd9\u4e2a\u5462\u662f\u4f7f\u7528\u4e86ServerSocker\u7684accept\u65b9\u6cd5，\u7528\u4e8e\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u8bf7\u6c42\u3002\u5e76\u4ee5Socker\u6765\u63a5\u6536\u8bf7\u6c42\u3002<\/p>\n

executorService.submit(()->{
\n processConnection(socket);
\n});<\/p>\n

\u8fd9\u4e2a\u5c31\u5f88\u7b80\u5355\u4e86，\u628a\u8bf7\u6c42\u4f20\u7ed9 processConnection(socket);\u65b9\u6cd5，\u8fd9\u4e2a\u65b9\u6cd5\u4e5f\u662f\u670d\u52a1\u5668\u7684\u6838\u5fc3\u4ee3\u7801， processConnection(socket);\u91cc\u8fb9\u6267\u884c\u7684\u5185\u5bb9\u5728\u4f20\u7ed9\u7ebf\u7a0b\u6c60executorService，\u6267\u884c\u4ee3\u7801\u3002\"\"<\/p>\n

\u8fd9\u4e2aprocessConnection\u662f\u6574\u4e2a\u670d\u52a1\u5668\u7684\u5173\u952e\u3002\u4e0b\u9762\u6211\u4eec\u4e00\u4e00\u89e3\u91ca：<\/p>\n

try(InputStream inqutStream = socket.getInputStream();
\n OutputStream outputStream = socket.getOutputStream())<\/p>\n

\u5148\u89e3\u91ca\u89e3\u91ca\u4e3a\u5565\u4ee3\u7801\u8981\u653e\u5728try\u91cc\u8fb9：\u8fd9\u6837\u5373\u4f7f\u6211\u4eec\u4e0d\u5199close\u65b9\u6cd5try\u4e5f\u4f1a\u5e2e\u6211\u4eec\u6267\u884c，\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002<\/p>\n

InputStream inqutStream = socket.getInputStream();<\/p>\n

\u8fd9\u4e2a\u5bf9\u8c61\u7684\u5e94\u7528\u662f\u7528\u6765\u63a5\u6536\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\u7684，<\/p>\n

Scanner scanner = new Scanner(inqutStream);
\nString request = scanner.next();<\/p>\n

\u901a\u8fc7\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u63a5\u6536\u5e76\u628a\u4e8c\u8fdb\u5236\u6570\u636e\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u4f20\u7ed9request\u3002<\/p>\n

OutputStream outputStream = socket.getOutputStream()<\/p>\n

\u8fd9\u4e2a\u65b9\u6cd5\u76f8\u5f53\u4e8e\u6253\u901a\u4e86\u6570\u636e\u4f20\u8f93\u7684\u901a\u9053，\u7528\u4e8e\u540e\u7eed\u628a\u6570\u636e\u53d1\u9001\u51fa\u53bb\u3002<\/p>\n

PrintWriter writer = new PrintWriter(outputStream);<\/p>\n

\u8fd9\u4e2a\u65b9\u6cd5\u5c06\u5e95\u5c42\u7684\u5b57\u8282\u8f93\u51fa\u6d41（OutputStream）\u5305\u88c5\u6210\u4e00\u4e2a\u66f4\u65b9\u4fbf\u5199\u5165\u6587\u672c\u7684\u201c\u6253\u5370\u5199\u5165\u5668\u201d\u3002<\/p>\n

\u914d\u5408\u5b83\u4f7f\u7528\u7684\u65b9\u6cd5\u8fd8\u6709<\/p>\n

writer.println(response);<\/p>\n

\u8fd9\u4e2a\u65b9\u6cd5\u662f\u628a\u00a0response\u00a0\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u5b57\u8282（\u57fa\u4e8e\u5b57\u7b26\u7f16\u7801），\u5199\u5165\u5185\u90e8\u7f13\u51b2\u533a，\u4f46\u00a0\u4e0d\u4f1a\u7acb\u5373\u53d1\u9001\u51fa\u53bb\u00a0，\u9700\u8981\u8c03\u7528<\/p>\n

writer.flush();<\/p>\n

\u8fd9\u4e2a\u65b9\u6cd5\u6765\u53d1\u9001\u6570\u636e\u3002<\/p>\n

\u6700\u540e\u5728\u901a\u8fc7finally\u5173\u952e\u5b57\u628asocket.close();\u4ee3\u7801\u6267\u884c\u4e86\u5173\u95ed\u8d44\u6e90\u3002<\/p>\n

TCP\u5ba2\u6237\u7aef\u7684\u6784\u5efa<\/h3>\n

\"\"<\/p>\n

\u4f9d\u65e7\u662f\u6784\u9020\u65b9\u6cd5\u7684\u7684\u521b\u5efa，\u524d\u9762\u6211\u4eec\u8bf4\u8fc7Sokcer\u7c7b\u53ef\u4ee5\u76f4\u63a5\u4f20\u76ee\u7684IP\u548c\u76ee\u7684\u7aef\u53e3\u53f7，\u6545\u800c\u76f4\u63a5\u5728\u8fd9\u91cc\u4f20\u5165\u53c2\u6570\u5373\u53ef\u3002\"\"<\/p>\n

\u5ba2\u6237\u7aef\u7684\u6838\u5fc3\u4ee3\u7801\u3002<\/p>\n

try(InputStream inputStream = socket.getInputStream();
\n OutputStream outputStream = socket.getOutputStream())<\/p>\n

\u8fd9\u4e2a\u548c\u670d\u52a1\u5668\u7684\u642d\u5efa\u4e00\u6837，\u4e3a\u4e86\u6709\u6548\u7684\u5173\u95ed\u8d44\u6e90\u548c\u63a5\u6536\u6570\u636e\u548c\u6253\u901a\u4f20\u8f93\u6570\u636e\u7684\u901a\u9053\u3002<\/p>\n

Scanner scannerNet = new Scanner(inputStream);
\nPrintWriter printWriter = new PrintWriter(outputStream);<\/p>\n

\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u4f9d\u65e7\u548c\u670d\u52a1\u5668\u7684\u529f\u80fd\u4e00\u6837，\u4e00\u4e2a\u662f\u63a5\u6536\u6570\u636e，\u4e00\u4e2a\u662f\u628a\u4f20\u9001\u7684\u6570\u636e\u201c\u6253\u5305\u201d\u597d\u3002<\/p>\n

System.out.println("\u8bf7\u8f93\u5165\u6570\u636e：");
\n\/\/\u8f93\u5165\u8981\u53d1\u9001\u7684\u6570\u636e ！！！
\nString request = scanner.next();
\nprintWriter.println(request);
\nprintWriter.flush();<\/p>\n

\u9700\u8981\u6ce8\u610f\u7684\u662f\u5ba2\u6237\u7aef\u80af\u5b9a\u662f\u5148\u53d1\u6570\u636e，\u670d\u52a1\u5668\u624d\u80fd\u63a5\u6536\u5230\u6570\u636e\u7136\u540e\u53d1\u9001\u7684\u3002<\/p>\n

String response = scannerNet.next();
\nSystem.out.println(response);<\/p>\n

\u7136\u540e\u628a\u63a5\u6536\u5230\u7684\u6570\u636e\u4f20\u7ed9response\u5728\u6253\u5370\u51fa\u6765\u3002<\/p>\n

\u5ba2\u6237\u7aef\u642d\u5efa\u5b8c\u6bd5！！！！<\/p>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

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