{"id":5508,"date":"2024-04-14T12:44:28","date_gmt":"2024-04-14T04:44:28","guid":{"rendered":"http:\/\/zyg.luchers.cn\/?p=5508"},"modified":"2024-04-14T12:44:28","modified_gmt":"2024-04-14T04:44:28","slug":"%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e3%80%90%e6%a6%82%e5%bf%b5%e3%80%81inetaddress%e7%b1%bb%e3%80%81socket%e7%b1%bb%e3%80%81udp%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e3%80%91","status":"publish","type":"post","link":"http:\/\/zyg.luchers.cn\/index.php\/2024\/04\/14\/%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e3%80%90%e6%a6%82%e5%bf%b5%e3%80%81inetaddress%e7%b1%bb%e3%80%81socket%e7%b1%bb%e3%80%81udp%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e3%80%91\/","title":{"rendered":"\u7f51\u7edc\u7f16\u7a0b\u3010\u6982\u5ff5\u3001InetAddress\u7c7b\u3001Socket\u7c7b\u3001UDP\u7f51\u7edc\u7f16\u7a0b\u3011"},"content":{"rendered":"

\u7b2c\u4e8c\u5341\u4e00\u7ae0\u3001\u7f51\u7edc\u7f16\u7a0b<\/h1>\n

1\u3001\u7f51\u7edc\u7684\u76f8\u5173\u6982\u5ff5<\/h2>\n

1.1\u3001\u7f51\u7edc\u901a\u4fe1<\/h3>\n

1\u3001\u6982\u5ff5\uff1a\u4e24\u53f0\u8bbe\u5907\u4e4b\u95f4\u901a\u8fc7\u7f51\u7edc\u5b9e\u73b0\u6570\u636e\u4f20\u8f93<\/p>\n

2\u3001\u7f51\u7edc\u6982\u5ff5\uff1a\u5c06\u6570\u636e\u901a\u8fc7\u7f51\u7edc\u4ece\u4e00\u53f0\u8bbe\u5907\u4f20\u8f93\u5230\u53e6\u4e00\u53f0\u8bbe\u5907\u3002<\/p>\n

3\u3001java.net\u5305\u4e0b\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u5217\u6216\u63a5\u53e3\uff0c\u4f9b\u7a0b\u5e8f\u5458\u4f7f\u7528\uff0c\u5b8c\u6210\u7f51\u7edc\u901a\u4fe1<\/p>\n

1.2\u3001\u7f51\u7edc<\/h3>\n

1\u3001\u6982\u5ff5\uff1a\u4e24\u53f0\u6216\u591a\u53f0\u8bbe\u5907\u901a\u8fc7\u4e00\u5b9a\u7269\u7406\u8bbe\u5907\u94fe\u63a5\u8d77\u6765\u6784\u6210\u4e86\u7f51\u7edc<\/p>\n

2\u3001\u6839\u636e\u7f51\u7edc\u7684\u8986\u76d6\u8303\u56f4\u4e0d\u540c\uff0c\u5bf9\u7f51\u7edc\u673a\u82af\u5206\u7c7b<\/p>\n

\uff081\uff09\u5c40\u57df\u7f51\uff1a\u8986\u76d6\u8303\u56f4\u6700\u5c0f\uff0c\u4ec5\u4ec5\u8986\u76d6\u4e00\u4e2a\u6559\u5ba4\u6216\u4e00\u4e2a\u673a\u623f<\/p>\n

\uff082\uff09\u57ce\u57df\u7f51\uff1a\u8986\u76d6\u8303\u56f4\u8f83\u5927\uff0c\u53ef\u4ee5\u8986\u76d6\u4e00\u4e2a\u57ce\u5e02<\/p>\n

\uff083\uff09\u5e7f\u57df\u7f51\uff1a\u798f\u560e\u8303\u56f4\u6700\u5927\uff0c\u53ef\u4ee5\u8986\u76d6\u5168\u56fd\uff0c\u751a\u81f3\u5168\u7403\uff0c\u4e07\u7ef4\u7f51\u662f\u5e7f\u57df\u7f51\u7684\u4ee3\u8868<\/p>\n

1.3\u3001ip\u5730\u5740<\/h3>\n

1\u3001\u6982\u5ff5\uff1a\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u7f51\u7edc\u4e2d\u7684\u6bcf\u53f0\u8ba1\u7b97\u673a\/\u4e3b\u673a<\/p>\n

2\u3001\u67e5\u770bip\u5730\u5740\uff1aipconfig<\/p>\n

3\u3001ip\u5730\u5740\u7684\u6807\u8bc6\u5f62\u5f0f\uff1a\u70b9\u5206\u5341\u8fdb\u5236 xx.xx.xx.xx<\/p>\n

4\u3001\u6bcf\u4e00\u4e2a\u5341\u8fdb\u5236\u6570\u7684\u8303\u56f4\uff1a0~255<\/p>\n

5\u3001ip\u5730\u5740\u7684\u7ec4\u6210=\u7f51\u7edc\u5730\u5740+\u4e3b\u673a\u5730\u5740\uff0c\u4f8b\u5982192.168.16.69<\/p>\n

6\u3001IPv6 \u662fIPv4\u7684\u8865\u5145<\/p>\n

7\u3001ip\u5730\u5740\u7684<\/p>\n

1.4\u3001IP\u5730\u5740\u5206\u7c7b<\/h3>\n

\"\"<\/div><\/p>\n

1.5\u3001\u57df\u540d<\/h3>\n

1\u3001www.baidu.con<\/p>\n

2\u3001\u6982\u5ff5\uff1a\u5c06ip\u5730\u5740\u6620\u5c04\u6210\u57df\u540d<\/p>\n

3\u3001\u597d\u5904\uff1a\u4e3a\u4e86\u65b9\u4fbf\u8bb0\u5fc6\uff0c\u89e3\u51b3\u8bb0ip\u56f0\u96be\u7684\u95ee\u9898<\/p>\n

1.6\u3001\u7aef\u53e3\u53f7<\/h3>\n

1\u3001\u6982\u5ff5\uff1a\u7528\u4e8e\u8868\u793a\u8ba1\u7b97\u673a\u4e0a\u67d0\u4e2a\u7279\u5b9a\u7684<\/p>\n

2\u3001\u8868\u793a\uff1a\u6574\u6570\u5f62\u5f0f\uff0c0\u201465535<\/p>\n

3\u30010~1024\u5df2\u7ecf\u88ab\u5360\u7528\uff0c\u4f8b\u5982ssh 22\u7b49<\/p>\n

4\u3001\u5e38\u89c1\u7aef\u53e3<\/p>\n

\uff081\uff09mysql\uff1a3306<\/p>\n

\uff082\uff09tomcat\uff1a8080<\/p>\n

1.7\u3001\u7f51\u7edc\u901a\u4fe1\u534f\u8bae<\/h3>\n

1\u3001\u534f\u8bae\uff08tcp\/ip\uff09\uff1a\u4e2d\u6587\u540d\u4e3a\u4f20\u8f93\u63a7\u5236\u534f\u8bae\uff0c\u56e0\u7279\u7f51\u4e92\u8054\u534f\u8bae\uff0c\u7f51\u7edc\u901a\u4fe1\u534f\u8bae\u3002<\/p>\n

\"image-20220704091442254\"<\/div><\/p>\n

2\u3001\u7f51\u7edc\u901a\u4fe1\u534f\u8bae<\/p>\n

3\u3001TCP\u548cUDP\u534f\u8bae<\/p>\n

2\u3001InetAddress\u7c7b<\/h2>\n

2.1\u3001\u76f8\u5173\u65b9\u6cd5<\/h3>\n

1\u3001eg<\/p>\n

import java.net.InetAddress;\nimport java.net.UnknownHostException;\n\n\/**\n * \u6f14\u793aINetAddress\u65b9\u6cd5\n *\/\npublic class API {\n    public static void main(String[] args) throws UnknownHostException {\n\/\/        1\u3001\u83b7\u53d6\u672c\u673a\u7684IntAddress\u5bf9\u8c61\n        InetAddress localHost = InetAddress.getLocalHost();\n        System.out.println(localHost);\/\/LAPTOP-AUKJ3KMV\/192.168.1.4\n\n\/\/        2\u3001\u6839\u636e\u6307\u5b9a\u4e3b\u673a\u540d \u83b7\u53d6InetAddress\u5bf9\u8c61\n        InetAddress host1 = InetAddress.getByName("LAPTOP-AUKJ3KMV");\n        System.out.println("host1="+host1);\n\n\/\/        3\u3001\u901a\u8fc7InetAddress\u5bf9\u8c61\u83b7\u53d6\u5bf9\u5e94\u7684ip\n        String hostAddress = host1.getHostAddress();\n        System.out.println("host1\u5bf9\u5e94\u7684ip\u4e3a\uff1a"+hostAddress);\n\n\/\/        \u901a\u8fc7InetA\u5bf9\u8c61\u83b7\u53d6\u57df\u540d\n        String hostname = host1.getHostName();\n        System.out.println("host1\u5bf9\u5e94\u7684ip\u4e3a\uff1a"+hostname);\n    }\n}<\/code><\/pre>\n
3\u3001Socket<\/h2>\n
3.1\u3001\u57fa\u672c\u4ecb\u7ecd<\/h3>\n
1\u3001\u4ecb\u7ecd<\/p>\n
\uff081\uff09\u5957\u63a5\u5b57\uff08Socket\uff09\u5f00\u53d1\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u88ab\u5e7f\u6cdb\u91c7\u7528\uff0c\u4ee5\u81f3\u4e8e\u6210\u4e3a\u4e8b\u5b9e\u4e0a\u7684\u6807\u51c6\uff1b<\/p>\n
\uff082\uff09\u901a\u8baf\u7684\u4e24\u7aef\u90fd\u8981\u6709Socket\uff0c\u662f\u4e24\u53f0\u673a\u5668\u4e4b\u95f4\u7684\u901a\u8baf\u7aef\u70b9\uff1b<\/p>\n
\uff083\uff09\u7f51\u7edc\u901a\u4fe1\u5176\u5b9e\u5c31\u662fSocket\u95f4\u7684\u901a\u4fe1\uff1b<\/p>\n
\uff084\uff09Socket\u5141\u8bb8\u7a0b\u5e8f\u628a\u7f51\u7edc\u8fde\u63a5\u5f53\u6210\u4e00\u4e2a\u6d41\uff0c\u6570\u636e\u5728\u4e24\u4e2aSocket\u95f4\u901a\u8fc7IO\u4f20\u8f93\uff1b<\/p>\n
\uff085\uff09\u4e00\u822c\u4e3b\u52a8\u53d1\u8d77\u901a\u4fe1\u7684\u5e94\u7528\u7a0b\u5e8f\u5c5e\u4e8e\u5ba2\u6237\u7aef\uff0c\u7b49\u5f85\u901a\u4fe1\u8bf7\u6c42\u7684\u4e3a\u670d\u52a1\u7aef\u3002<\/p>\n
2\u3001\u793a\u610f\u56fe<\/p>\n
\"image-20230322225854838\"<\/div><\/p>\n
3.2\u3001TCP\u7f51\u7edc\u901a\u4fe1\u7f16\u7a0b<\/h3>\n
1\u3001\u4f8b\u5b50\u4e00<\/p>\n
\uff081\u670d\u52a1\u5668\u7aef\u7684socket\uff09<\/p>\n
import java.io.IOException;\nimport java.io.InputStream;\nimport java.net.ServerSocket;\nimport java.net.Socket;\n\npublic class SocketTCP01Server {\n    public static void main(String[] args) throws IOException {\n        \/\/\u601d\u8def\n\/\/        1\u3001\u5728\u672c\u673a\u76849999\u7aef\u53e3\u53f7\u76d1\u542c\uff0c\u7b49\u5f85\u8fde\u63a5\n        \/\/\u8981\u6c42\u5728\u672c\u673a\u6ca1\u6709\u5176\u4ed6\u670d\u52a1\u5728\u76d1\u542c9999\n        ServerSocket serverSocket = new ServerSocket(9999);\n        System.out.println("\u670d\u52a1\u7aef\uff0c\u57289999\u7aef\u53e3\u53f7\u76d1\u542c\uff0c\u7b49\u5f85\u8fde\u63a5");\n        \/\/2\u3001\u6ca1\u6709\u8fde\u63a5\u7684\u8bdd\u4f1a\u963b\u585e\uff0c\u5982\u679c\u6709\u8fde\u63a5\u5219\u7ee7\u7eed\n        Socket socket1 = serverSocket.accept();\n\n        System.out.println("socket="+socket1.getClass());\n\/\/        3\u3001\u901a\u8fc7scoket.getInputStream()\u8bfb\u53d6\u5ba2\u6237\u7aef\u5199\u5165\u7684\u6570\u636e\n        InputStream inputStream = socket1.getInputStream();\n\/\/        4\u3001IO\u8bfb\u53d6\n        byte [] buf = new byte[1024];\n        int readLen =0;\n        while ((readLen=inputStream.read(buf))!=-1){\n            System.out.println(new String(buf,0,readLen));\/\/\u6839\u636e\u8bfb\u53d6\u5230\u7684\u5b9e\u9645\u957f\u5ea6\n        }\n\/\/        5\u3001\u5173\u95ed\u6d41\n        inputStream.close();\n        socket1.close();\n        serverSocket.close();\n    }\n}<\/code><\/pre>\n
\uff082\u5ba2\u6237\u7aef\u7684socket\uff09<\/p>\n
import java.io.IOException;\nimport java.io.OutputStream;\nimport java.net.InetAddress;\nimport java.net.Socket;\nimport java.nio.charset.StandardCharsets;\n\npublic class SocketTCP01Client {\n    public static void main(String[] args) throws IOException {\n        \/\/\u601d\u8def\n\/\/        1\u3001\u8fde\u63a5\u670d\u52a1\u5668\uff08ip\uff0c\u7aef\u53e3\u53f7\uff09\n\/\/        \u8fde\u63a5\u672c\u673a\u76849999\u7aef\u53e3\u53f7\n        Socket socket = new Socket(InetAddress.getLocalHost(),9999);\n        System.out.println("\u5ba2\u6237\u7aefsocket\u8fd4\u56de="+socket.getClass());\n\/\/        2\u3001\u8fde\u63a5\u540e\u901a\u8fc7\uff0csocket.getOutputStream()\u8f93\u51fa\u6d41\n        OutputStream outputStream =socket.getOutputStream();\n        outputStream.write("adasab".getBytes(StandardCharsets.UTF_8));\n\/\/        3\u3001\u5173\u95ed\u6d41\n        outputStream.close();\n        socket.close();\n\/\/        \u6d41\u5173\u95ed\n        System.out.println("\u5ba2\u6237\u7aef\u9000\u51fa");\n\n    }\n}<\/code><\/pre>\n
2\u3001\u4f8b\u5b50\u4e8c<\/p>\n
\uff081\uff09\u5ba2\u6237\u7aef<\/p>\n
import java.io.IOException;\nimport java.io.InputStream;\nimport java.io.OutputStream;\nimport java.net.InetAddress;\nimport java.net.Socket;\nimport java.nio.charset.StandardCharsets;\npublic class SocketTCP02Client {\n    public static void main(String[] args) throws IOException {\n        \/\/\u601d\u8def\n\/\/        1\u3001\u8fde\u63a5\u670d\u52a1\u5668\uff08ip\uff0c\u7aef\u53e3\u53f7\uff09\n\/\/        \u8fde\u63a5\u672c\u673a\u76849999\u7aef\u53e3\u53f7\n        Socket socket = new Socket(InetAddress.getLocalHost(),9999);\n        System.out.println("\u5ba2\u6237\u7aefsocket\u8fd4\u56de="+socket.getClass());\n\/\/        2\u3001\u8fde\u63a5\u540e\u901a\u8fc7\uff0csocket.getOutputStream()\u8f93\u51fa\u6d41\n        OutputStream outputStream =socket.getOutputStream();\n        outputStream.write("My is Client I send a adasab to you".getBytes(StandardCharsets.UTF_8));\n\/\/        \u8bbe\u7f6e\u7ed3\u675f\u6807\u7b7e\n        socket.shutdownOutput();\n\/\/        4\u3001\u83b7\u53d6\u548csocket\u5173\u8054\u7684\u8f93\u5165\u6d41\uff0c\u8bfb\u53d6\u6570\u636e\uff08\u5b57\u7b26\uff09\n        InputStream inputStream = socket.getInputStream();\n        byte [] buf = new byte[1024];\n        int readLen = 0;\n        while ((readLen=inputStream.read(buf))!=-1){\n            System.out.println(new String (buf,0,readLen));\n        }\n\n\/\/        5\u3001\u6d41\u5173\u95ed\n        inputStream.close();\n        outputStream.close();\n        socket.close();\n        System.out.println("\u5ba2\u6237\u7aef\u9000\u51fa");\n\n    }\n}<\/code><\/pre>\n
\uff082\uff09\u670d\u52a1\u7aef<\/p>\n
import java.io.IOException;\nimport java.io.InputStream;\nimport java.io.OutputStream;\nimport java.net.ServerSocket;\nimport java.net.Socket;\npublic class SocketTCP02Server {\n    public static void main(String[] args) throws IOException {\n        \/\/\u601d\u8def\n\/\/        1\u3001\u5728\u672c\u673a\u76849999\u7aef\u53e3\u53f7\u76d1\u542c\uff0c\u7b49\u5f85\u8fde\u63a5\n        \/\/\u8981\u6c42\u5728\u672c\u673a\u6ca1\u6709\u5176\u4ed6\u670d\u52a1\u5728\u76d1\u542c9999\n        ServerSocket serverSocket = new ServerSocket(9999);\n        System.out.println("\u670d\u52a1\u7aef\uff0c\u57289999\u7aef\u53e3\u53f7\u76d1\u542c\uff0c\u7b49\u5f85\u8fde\u63a5");\n        \/\/2\u3001\u6ca1\u6709\u8fde\u63a5\u7684\u8bdd\u4f1a\u963b\u585e\uff0c\u5982\u679c\u6709\u8fde\u63a5\u5219\u7ee7\u7eed\n\/\/        \u5982\u679c\u6709\u5ba2\u6237\u7aef\uff0c\u8fde\u63a5\uff0c\u5219\u4f1a\u7ee7\u7eed\u5f80\u4e0b\u6267\u884c\n        Socket socket = serverSocket.accept();\n\n        System.out.println("\u670d\u52a1\u5668\u7aefsocket="+socket.getClass());\n\/\/        3\u3001\u901a\u8fc7scoket.getInputStream()\u8bfb\u53d6\u5ba2\u6237\u7aef\u5199\u5165\u7684\u6570\u636e\n        InputStream inputStream = socket.getInputStream();\n\/\/        4\u3001IO\u8bfb\u53d6\n        byte [] buf = new byte[1024];\n        int readLen =0;\n        while ((readLen=inputStream.read(buf))!=-1){\n            System.out.println(new String(buf,0,readLen));\/\/\u6839\u636e\u8bfb\u53d6\u5230\u7684\u5b9e\u9645\u957f\u5ea6\n        }\n\/\/        5\u3001\u83b7\u53d6socket\u76f8\u5173\u7684\u8f93\u51fa\u6d41\n        OutputStream outputStream = socket.getOutputStream();\n        outputStream.write("My is Server I send a sssss to you ".getBytes());\n\n\/\/        6\u3001\u5173\u95ed\u6d41\n        outputStream.close();\n        inputStream.close();\n        socket.close();\n        serverSocket.close();\n    }\n}<\/code><\/pre>\n
3\u3001\u4f8b\u5b50\u4e09<\/p>\n
\uff081\uff09\u793a\u610f\u56fe<\/p>\n
\"image-20230322225933276\"<\/div><\/p>\n
\"image-20230322225946717\"<\/div><\/p>\n
\uff082\uff09\u5ba2\u6237\u7aef\u4ee3\u7801<\/p>\n
import java.io.*;\nimport java.net.InetAddress;\nimport java.net.Socket;\nimport java.nio.charset.StandardCharsets;\n\/**\n * \u5ba2\u6237\u7aef\uff0c\u4f7f\u7528\u5b57\u7b26\u6d41\u65b9\u5f0f\n *\/\npublic class SocketTCP03Client {\n    public static void main(String[] args) throws IOException {\n        \/\/\u601d\u8def\n\/\/        1\u3001\u8fde\u63a5\u670d\u52a1\u5668\uff08ip\uff0c\u7aef\u53e3\u53f7\uff09\n\/\/        \u8fde\u63a5\u672c\u673a\u76849999\u7aef\u53e3\u53f7\n        Socket socket = new Socket(InetAddress.getLocalHost(),9999);\n        System.out.println("\u5ba2\u6237\u7aefsocket\u8fd4\u56de="+socket.getClass());\n\/\/        2\u3001\u8fde\u63a5\u540e\u901a\u8fc7\uff0csocket.getOutputStream()\u8f93\u51fa\u6d41\n        OutputStream outputStream =socket.getOutputStream();\n\/\/        3\u3001\u901a\u8fc7\u8f93\u51fa\u6d41\uff0c\u5199\u5165\u6570\u636e\u5230\u6570\u636e\u901a\u9053\uff0c\u4f7f\u7528\u5b57\u7b26\u6d41\n        BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream));\n        bufferedWriter.write("\u6211\u662f\u5ba2\u6237\u7aef\uff0c\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60,\u670d\u52a1\u7aef");\n        bufferedWriter.newLine();\/\/\u6362\u884c\u4f5c\u7528\uff0c\u8868\u793a\u5199\u5165\u5185\u5bb9\u7ed3\u675f\uff0c\u6ce8\u610f\uff0c\u9700\u8981\u5bf9\u65b9\u4f7f\u7528readLine()\u8fdb\u884c\u8bfb\u53d6\n        bufferedWriter.flush();\/\/\u5b57\u7b26\u6d41\uff0c\u9700\u8981\u624b\u52a8\u5237\u65b0\n\/\/        \u8bbe\u7f6e\u7ed3\u675f\u6807\u7b7e\n        socket.shutdownOutput();\n\/\/        4\u3001\u83b7\u53d6\u548csocket\u5173\u8054\u7684\u8f93\u5165\u6d41\uff0c\u8bfb\u53d6\u6570\u636e\uff08\u5b57\u7b26\uff09\n        InputStream inputStream = socket.getInputStream();\n        byte [] buf = new byte[1024];\n        int readLen = 0;\n        while ((readLen=inputStream.read(buf))!=-1){\n            System.out.println(new String (buf,0,readLen));\n        }\n\/\/        5\u3001\u6d41\u5173\u95ed\n        inputStream.close();\n        outputStream.close();\n        socket.close();\n        System.out.println("\u5ba2\u6237\u7aef\u9000\u51fa");\n    }\n}<\/code><\/pre>\n
\uff083\uff09\u670d\u52a1\u7aef\u4ee3\u7801<\/p>\n
import java.io.*;\nimport java.net.ServerSocket;\nimport java.net.Socket;\n\n\/**\n * \u670d\u52a1\u7aef\uff0c\u4f7f\u7528\u5b57\u7b26\u6d41\u65b9\u5f0f\n *\/\npublic class SocketTCP03Server {\n    public static void main(String[] args) throws IOException {\n        \/\/\u601d\u8def\n\/\/        1\u3001\u5728\u672c\u673a\u76849999\u7aef\u53e3\u53f7\u76d1\u542c\uff0c\u7b49\u5f85\u8fde\u63a5\n        \/\/\u8981\u6c42\u5728\u672c\u673a\u6ca1\u6709\u5176\u4ed6\u670d\u52a1\u5728\u76d1\u542c9999\n        ServerSocket serverSocket = new ServerSocket(9999);\n        System.out.println("\u670d\u52a1\u7aef\uff0c\u57289999\u7aef\u53e3\u53f7\u76d1\u542c\uff0c\u7b49\u5f85\u8fde\u63a5");\n        \/\/2\u3001\u6ca1\u6709\u8fde\u63a5\u7684\u8bdd\u4f1a\u963b\u585e\uff0c\u5982\u679c\u6709\u8fde\u63a5\u5219\u7ee7\u7eed\n\/\/        \u5982\u679c\u6709\u5ba2\u6237\u7aef\uff0c\u8fde\u63a5\uff0c\u5219\u4f1a\u7ee7\u7eed\u5f80\u4e0b\u6267\u884c\n        Socket socket = serverSocket.accept();\n        System.out.println("\u670d\u52a1\u5668\u7aefsocket="+socket.getClass());\n\/\/        3\u3001\u901a\u8fc7scoket.getInputStream()\u8bfb\u53d6\u5ba2\u6237\u7aef\u5199\u5165\u7684\u6570\u636e\n        InputStream inputStream = socket.getInputStream();\n\/\/        4\u3001IO\u8bfb\u53d6\uff0c\u5b57\u7b26\u8def\n        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));\n        String s  =bufferedReader.readLine();\n        System.out.println(s);\/\/\u8f93\u51fa\n\/\/        5\u3001\u83b7\u53d6socket\u76f8\u5173\u7684\u8f93\u51fa\u6d41\n        OutputStream outputStream = socket.getOutputStream();\n\/\/        \u4f7f\u7528\u5b57\u7b26\u8f93\u51fa\u6d41\u7684\u65b9\u5f0f\u56de\u590d\u4fe1\u606f\n        BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream));\n        bufferedWriter.write("\u6211\u662f\u670d\u52a1\u7aef\uff0c\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60,\u5ba2\u6237\u7aef");\n        bufferedWriter.newLine();\/\/\u6362\u884c\u7b26\uff0c\u8868\u793a\u5185\u5bb9\u7ed3\u675f\n        bufferedWriter.flush();\/\/\u5237\u65b0\u4f5c\u7528\n\/\/        6\u3001\u5173\u95ed\u6d41\n        bufferedWriter.close();\n        bufferedReader.close();\n        socket.close();\n        serverSocket.close();\n    }\n}                                                                                                                                                                                                        <\/code><\/pre>\n
4\u3001\u4f8b\u5b50<\/p>\n
\uff081\uff09\u9898\u76ee<\/p>\n
\"image-20230322230013589\"<\/div><\/p>\n
\uff082\uff09\u5206\u6790\u56fe<\/p>\n
\"image-20230322230028220\"<\/div><\/p>\n
\uff083\uff09\u5ba2\u6237\u7aef\u4ee3\u7801\u5b9e\u73b0<\/p>\n
package upload;\n\nimport java.io.*;\nimport java.net.InetAddress;\nimport java.net.Socket;\nimport java.net.UnknownHostException;\n\n\/**\n * \u6587\u4ef6\u4e0a\u4f20\u7684\u5ba2\u6237\u7aef\n *\n *\/\npublic class TCPFileUploadClient {\n    public static void main(String[] args) throws Exception {\n\/\/        1.\u521b\u5efa\u5ba2\u6237\u7aef,\u5f97\u5230socket\u5bf9\u8c61\n        Socket socket = new Socket(InetAddress.getLocalHost(),8888);\n\/\/        2.\u521b\u5efa\u8bfb\u53d6\u78c1\u76d8\u6587\u4ef6\u7684\u8f93\u5165\u6d41\n        String filePath ="D:\\\\smillPicture\\\\leimu.jpg";\n        BufferedInputStream bis =new BufferedInputStream(new FileInputStream(filePath));\n\/\/      bytes \u5c31\u662ffilePath \u5bf9\u5e94\u7684\u5b57\u8282\u6570\u7ec4\n        byte[] bytes = StreamUtil.streamToByTeArray(bis);\n\n\/\/      \u901a\u8fc7socket\u83b7\u53d6\u5230\u8f93\u51fa\u6d41\uff0c\u8bb2bytes\u6570\u636e\u53d1\u9001\u7ed9\u670d\u52a1\u7aef\n        BufferedOutputStream bos = new BufferedOutputStream(socket.getOutputStream());\n        bos.write(bytes);\/\/\u8bb2\u6587\u4ef6\u5bf9\u5e94\u7684\u5b57\u8282\u6570\u7ec4\u5199\u5165\u5230\u6570\u636e\u901a\u9053\n        bis.close();\n        socket.shutdownOutput();\/\/\u8bbe\u7f6e\u5199\u5165\u6570\u636e\u7684\u7ed3\u675f\u6807\u8bb0\n        \/\/\u63a5\u6536\u4ece\u670d\u52a1\u7aef\u53d1\u6765\u7684\u6d88\u606f\n        InputStream inputStream = socket.getInputStream();\n        String s = StreamUtil.streamToString(inputStream);\n        System.out.println(s);\n\/\/        \u5173\u95ed\u76f8\u5173\u6d41\n        inputStream.close();\n        System.out.println("\u5ba2\u6237\u7aef\u9000\u51fa");\n        bis.close();\n        socket.close();\n    }\n}<\/code><\/pre>\n
\uff084\uff09\u670d\u52a1\u7aef\u4ee3\u7801\u5b9e\u73b0<\/p>\n
package upload;\n\nimport java.io.*;\nimport java.net.ServerSocket;\nimport java.net.Socket;\n\n\/**\n * \u6587\u4ef6\u4e0a\u4f20\u7684\u670d\u52a1\u7aef\n *\/\npublic class TCPFileUploadServer {\n    public static void main(String[] args) throws Exception {\n\/\/      1\u3001\u670d\u52a1\u7aef\u5728\u672c\u5730\u76d1\u542c8888\n        ServerSocket serverSocket = new ServerSocket(8888);\n        System.out.println("\u7aef\u53e38888\u7b49\u5f85\u8fde\u63a5\u3002\u3002\u3002\u3002\u3002\u3002");\n\/\/      2\u3001\u7b49\u5f85\u8fde\u63a5\n        Socket socket = serverSocket.accept();\n\n\/\/      3.\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\n        \/\/\u901a\u8fc7socket\u5f97\u5230\u8f93\u5165\u6d41\n        BufferedInputStream bis = new BufferedInputStream(socket.getInputStream());\n        byte [] bytes = StreamUtil.streamToByTeArray(bis);\n\/\/      4\u3001\u5c06bytes\u6570\u7ec4\uff0c\u5199\u5165\u5230\u6307\u5b9a\u7684\u8def\u5f84\uff0c\u5c31\u5f97\u5230\u4e00\u4e2a\u6587\u4ef6\n        String cpPath = "src\\\\niubi.jpg";\n        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(cpPath));\n        bos.write(bytes);\n        bos.close();\n\n\/\/        \u56de\u590d\u5ba2\u6237\u7aef\u6d88\u606f\u201c\u6536\u5230\u56fe\u7247\u201d\n\/\/        \u901a\u8fc7socket\u83b7\u53d6\u8f93\u51fa\u6d41\u5b57\u7b26\n        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));\n        writer.write("\u6211\u662f\u670d\u52a1\u7aef\u6211\u548c\u4f60\u8bf4\u6211\u5df2\u7ecf\u6536\u5230\u56fe\u7247\u4e86");\n        writer.flush();\/\/\u5237\u65b0\n        socket.shutdownOutput();\/\/\u8bbe\u7f6e\u5199\u5165\u7ed3\u675f\u7684\u6807\u8bb0\n\/\/        \u5173\u95ed\u5176\u4ed6\u8d44\u6e90\n        System.out.println("\u670d\u52a1\u7aef\u9000\u51fa");\n        writer.close();\n        bis.close();\n        socket.close();\n        serverSocket.close();\n    }\n}<\/code><\/pre>\n
3.3\u3001TCP\u79d8\u5bc6<\/h3>\n
1\u3001\u5f53\u5ba2\u6237\u7aef\u8fde\u63a5\u670d\u52a1\u7aef\u540e\uff0c\u5ba2\u6237\u7aef\u4e5f\u662f\u901a\u8fc7\u4e00\u4e2a\u7aef\u53e3\u548c\u670d\u52a1\u7aef\u8fdb\u884c\u901a\u8baf\u7684\uff0c\u8fd9\u4e2a\u7aef\u53e3\u662fTCP\/IP\u6765\u5206\u914d\u7684\uff0c\u662f\u4e0d\u786e\u5b9a\uff0c\u662f\u968f\u673a\u7684\u3002<\/p>\n
4\u3001UDP\u7f51\u7edc\u901a\u4fe1\u7f16\u7a0b<\/h2>\n
4.1\u3001\u57fa\u672c\u4ecb\u7ecd<\/h3>\n
\"image-20230322230120972\"<\/div><\/p>\n
4.2\u3001UDP\u7f51\u7edc\u7f16\u7a0b\u539f\u7406\u793a\u610f\u56fe<\/h3>\n
\"image-20230322230201100\"<\/div><\/p>\n
4.3\u3001\u57fa\u672c\u6d41\u7a0b<\/h3>\n
\"image-20230322230243566\"<\/div><\/p>\n
4.4\u3001\u5e94\u7528\u6848\u4f8b<\/h3>\n
1\u3001\u9700\u6c42<\/p>\n
\"image-20230322230317396\"<\/div><\/p>\n
2\u3001\u63a5\u6536\u7aef<\/p>\n
package udp;\n\nimport java.io.IOException;\nimport java.net.DatagramPacket;\nimport java.net.DatagramSocket;\nimport java.net.InetAddress;\nimport java.net.SocketException;\n\n\/**\n * UDP\u63a5\u6536\u7aef\n *\/\npublic class UDPReceiverA {\n    public static void main(String[] args) throws IOException {\n\/\/        1.\u521b\u5efa \u4e00\u4e2aDatagramSocket \u7c7b\n        DatagramSocket socket = new DatagramSocket(9999);\n\/\/        2.\u521b\u5efa\u4e00\u4e2aDatagramPacket\uff0c\u51c6\u5907\u63a5\u6536\u6570\u636e\n        byte [] buf = new byte[1024];\n        DatagramPacket packet = new DatagramPacket(buf,buf.length);\n\/\/        3.\u8c03\u7528\u63a5\u6536\u65b9\u6cd5\uff0c\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u7684DatagramPacket\u5bf9\u8c61\uff0c\u586b\u5145\u5230packet\n\/\/        \u5f53\u6570\u636e\u5305\u53d1\u9001\u5230\u672c\u673a9999\u7aef\u53e3\u65f6\uff0c\u4f1a\u63a5\u6536\u6570\u636e\n\/\/        \u5982\u679c\u6ca1\u6709\u6570\u636e\u5305\u53d1\u9001\u52309999\u7aef\u53e3\uff0c\u5219\u4f1a\u963b\u585e\n        System.out.println("\u63a5\u6536\u7aefA\uff0c\u7b49\u5f85\u63a5\u6536\u6570\u636e\u3002\u3002\u3002");\n        socket.receive(packet);\n\/\/        4.\u53ef\u4ee5packet\u8fdb\u884c\u62c6\u5305,\u53d6\u51fa\u6570\u636e\uff0c\u5e76\u663e\u793a\n        int length = packet.getLength();\/\/\u6570\u636e\u5b9e\u9645\u63a5\u6536\u5230\u7684\u6570\u636e\u957f\u5ea6\n         byte [] data = packet.getData();\/\/\u83b7\u53d6\u6570\u636e\n        String s = new String (data,0,length);\n        System.out.println(s);\n\n\/\/      ======================\u56de\u590d\u4fe1\u606f\u7ed9B\u7aef\n        data = "\u4f60\u597d\u6211\u662fA\uff0c\u660e\u5929\u5403\u706b\u9505\u4e0d\u54af".getBytes();\n\/\/      \u8bf4\u660e\uff1a\u5c01\u88c5DatagramPacket\u5bf9\u8c61\u7684data\u5185\u5bb9\u5b57\u8282\u6570\u7ec4\uff0cdata.length,IP,\u7aef\u53e3\n        packet = new DatagramPacket(data, data.length, InetAddress.getByName("192.168.1.2"),9998);\n        socket.send(packet);\n\n\/\/        5.\u5173\u95ed\u8d44\u6e90\n        socket.close();\n        System.out.println("A\u7aef\u9000\u51fa");\n    }\n}<\/code><\/pre>\n
3\u3001\u53d1\u9001\u7aef<\/p>\n
package udp;\n\nimport java.io.IOException;\nimport java.net.*;\nimport java.nio.charset.StandardCharsets;\n\npublic class UDPSenderB {\n    public static void main(String[] args) throws IOException {\n\/\/        1.\u51c6\u5907\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e,\u51c6\u5907\u57289998\u7aef\u53e3,\u63a5\u6536\u6570\u636e\n        DatagramSocket socket = new DatagramSocket(9998);\n\n\/\/        2.\u5c06\u9700\u8981\u53d1\u9001\u7684\u6570\u636e\uff0c\u5c01\u88c5\u5230DatagramPacket\u5bf9\u8c61\n        byte[] data = "\u6211\u662fB\uff0c\u597d\u7684\uff0c\u660e\u5929\u89c1".getBytes();\n\/\/        \u8bf4\u660e\uff1a\u5c01\u88c5DatagramPacket\u5bf9\u8c61\u7684data\u5185\u5bb9\u5b57\u8282\u6570\u7ec4\uff0cdata.length,IP,\u7aef\u53e3\n        DatagramPacket packet = new DatagramPacket(data, data.length, InetAddress.getByName("192.168.1.2"),9999);\n\n        socket.send(packet);\n\n        \/\/3.========\u63a5\u6536\u4eceA\u7aef\u56de\u590d\u7684\u4fe1\u606f\n        \/\/       (1)\u521b\u5efa\u4e00\u4e2aDatagramPacket\uff0c\u51c6\u5907\u63a5\u6536\u6570\u636e\n        byte [] buf = new byte[1024];\n        packet = new DatagramPacket(buf,buf.length);\n\/\/              (2)\u8c03\u7528\u63a5\u6536\u65b9\u6cd5\uff0c\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u7684DatagramPacket\u5bf9\u8c61\uff0c\u586b\u5145\u5230packet\n\/\/        \u5f53\u6570\u636e\u5305\u53d1\u9001\u5230\u672c\u673a9998\u7aef\u53e3\u65f6\uff0c\u4f1a\u63a5\u6536\u6570\u636e\n\/\/        \u5982\u679c\u6ca1\u6709\u6570\u636e\u5305\u53d1\u9001\u52309998\u7aef\u53e3\uff0c\u5219\u4f1a\u963b\u585e\n        socket.receive(packet);\n\/\/        (3)\u53ef\u4ee5packet\u8fdb\u884c\u62c6\u5305,\u53d6\u51fa\u6570\u636e\uff0c\u5e76\u663e\u793a\n        int length = packet.getLength();\/\/\u6570\u636e\u5b9e\u9645\u63a5\u6536\u5230\u7684\u6570\u636e\u957f\u5ea6\n        data = packet.getData();\/\/\u83b7\u53d6\u6570\u636e\n        String s = new String (data,0,length);\n        System.out.println(s);\n\/\/        3.\u5173\u95ed\u6d41\n        socket.close();\n        System.out.println("B\u7aef\u9000\u51fa");\n    }\n}<\/code><\/pre>\n
5\u3001\u8bfe\u540e\u7ec3\u4e60<\/h2>\n
1\u3001\u7b2c\u4e00\u9898\u3001\u7b2c\u4e8c\u9898<\/h3>\n
\"image-20230322231210757\"<\/div><\/p>\n
1\u7b2c\u4e00\u9898<\/h4>\n
\uff081\uff09\u5ba2\u6237\u7aef<\/p>\n
package homework;\n\nimport java.io.*;\nimport java.net.InetAddress;\nimport java.net.Socket;\nimport java.net.UnknownHostException;\nimport java.util.Scanner;\n\n\/**\n * \u5ba2\u6237\u7aef\n * \u76ee\u7684\uff1a\u53d1\u9001\u201cname"\n *      \u53d1\u9001\u201chobby"\n *\/\npublic class homework01Client {\n    public static void main(String[] args) throws IOException {\n\/\/        \u601d\u8def\n\/\/        1.\u8fde\u63a5\u670d\u52a1\u5668ip\n        Socket socket = new Socket(InetAddress.getLocalHost(),9999);\n\n\/\/        2.\u8fde\u63a5\u540e\u901a\u8fc7\uff0csocket.getOutputStream()\u8f93\u51fa\u6d41\n        OutputStream outputStream = socket.getOutputStream();\n\n\/\/        3.\u901a\u8fc7\u8f93\u51fa\u6d41\uff0c\u5199\u5165\u6570\u636e\u5230\u6570\u636e\u901a\u9053\uff0c\u4f7f\u7528\u5b57\u7b26\u6d41\n        BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream));\n\n        Scanner scan = new Scanner(System.in);\n        System.out.println("\u8bf7\u8f93\u5165\u4f60\u7684\u95ee\u9898");\n        String question = scan.next();\n        bufferedWriter.write(question);\n        bufferedWriter.newLine();\/\/\u6362\u884c\uff0c\u8868\u793a\u5199\u5165\u5185\u5bb9\u7ed3\u675f\n        bufferedWriter.flush();\/\/\u5237\u65b0\n        socket.shutdownOutput();\n\/\/        4.\u83b7\u53d6\u548csocket\u5173\u8054\u7684\u8f93\u5165\u6d41\uff0c\u8bfb\u53d6\u6570\u636e(\u5b57\u7b26\uff09\n        InputStream inputStream = socket.getInputStream();\n        byte [] buf = new byte[1024];\n        int readLen =0;\n        while ((readLen=inputStream.read(buf))!=-1){\n            System.out.println(new String(buf,0,readLen));\n        }\n\/\/        5.\u5173\u95ed\u6d41\n        inputStream.close();\n        outputStream.close();\n        socket.close();\n        System.out.println("\u5ba2\u6237\u7aef\u9000\u51fa");\n    }\n}<\/code><\/pre>\n
\uff082\uff09\u670d\u52a1\u7aef<\/p>\n
package homework;\n\nimport java.io.*;\nimport java.net.ServerSocket;\nimport java.net.Socket;\nimport java.nio.charset.StandardCharsets;\n\n\/**\n\u670d\u52a1\u7aef\n \u76ee\u7684\uff1a\u56de\u590d"\u6211\u662f\u79e6\u6d9b\u201c\n      \u56de\u590d\u201c\u7f16\u5199java\u201d\n *\/\npublic class Homework01Server {\n    public static void main(String[] args) throws IOException {\n\/\/        1.\u8bbe\u7f6e\u7aef\u53e3\u53f7\n        ServerSocket serverSocket = new ServerSocket(9999);\n\/\/        \u8f93\u51fa\u6211\u5728\u76d1\u542c\u4e86\n        System.out.println("\u5feb\u6765\u627e\u6211\uff0c\u6211\u57289999\u7aef\u53e3\u76d1\u542c\u4e86,\u7b49\u5f85\u8fde\u63a5");\n\/\/        2.\u6ca1\u6709\u8fde\u63a5\u5219\u4f1a\u963b\u585e\uff0c\u8fde\u63a5\u540e\u7ee7\u7eed\u6267\u884c\n        Socket socket = serverSocket.accept();\n\/\/        3.\u901a\u8fc7socket.getInputStream()\u63a5\u6536\u5ba2\u6237\u7aef\u5199\u5165\u7684\u6570\u636e\n        InputStream inputStream  = socket.getInputStream();\n\/\/        4.IO\u6d41\u8bfb\u53d6\u5b57\u7b26\u4e32\n        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));\n        String s = bufferedReader.readLine();\n        System.out.println(s);\n        String answer= "";\n        boolean flag =true;\n            if ("name".equals(s)) {\n                answer = "\u6211\u662f\u554a\u6d9b";\n            } else if ("hobby".equals(s)) {\n                answer = "\u7f16\u5199java\u7a0b\u5e8f";\n            } else {\n                answer = "\u4f60\u5728\u8bf4\u9e21\u6bdb,\u6eda\u86cb";\n                flag = false;\n            }\n\n\/\/        5.\u83b7\u53d6\u8f93\u51fa\u6d41\n        OutputStream outputStream = socket.getOutputStream();\n        BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream));\n        bufferedWriter.write(answer);\n\n        bufferedWriter.newLine();\/\/\u8868\u793a\u6362\u884c\uff0c\u7ed3\u675f\n        bufferedWriter.flush();\n\n\/\/        6.\u5173\u95ed\u6d41\n        bufferedWriter.close();\n        bufferedReader.close();\n        socket.close();\n        serverSocket.close();\n    }\n}<\/code><\/pre>\n
2\u7b2c\u4e8c\u9898<\/h4>\n
\"image-20230322231241283\"<\/div><\/p>\n
\uff081\uff09\u63a5\u6536\u7aef<\/p>\n
package homework;\n\nimport java.io.IOException;\nimport java.net.DatagramPacket;\nimport java.net.DatagramSocket;\nimport java.net.InetAddress;\nimport java.net.SocketException;\nimport java.nio.charset.StandardCharsets;\n\npublic class Homework02ReceiverA {\n    public static void main(String[] args) throws IOException {\n\/\/        1.\u521b\u5efa\u4e00\u4e2aDatagramPacket\uff0c\u51c6\u786e\u63a5\u6536\u6570\u636e\n        DatagramSocket socket = new DatagramSocket(8888);\n\/\/        2.\u521b\u5efa\u4e00\u4e2aDatagramPacket\u51c6\u5907\u63a5\u6536\u6570\u636e\n        byte [] buf = new byte[1024];\n        DatagramPacket packet = new DatagramPacket(buf,buf.length);\n\/\/        3.\u8c03\u7528\u63a5\u6536\u65b9\u6cd5\n        System.out.println("\u63a5\u6536\u7aefA\uff0c\u7b49\u5f85\u63a5\u6536\u6570\u636e\u3002\u3002\u3002");\n        socket.receive(packet);\n\n\/\/        4.\u53ef\u4ee5\u4ecepacket\u8fdb\u884c\u62c6\u5305\uff0c\u53d6\u51fa\u6570\u636e\uff0c\u5e76\u663e\u793a\n        int length = packet.getLength();\/\/\u6570\u636e\u5b9e\u9645\u63a5\u6536\u5230\u7684\u6570\u636e\u957f\u5ea6\n        byte [] data= packet.getData();\/\/\u83b7\u53d6\u6570\u636e\n        String s = new String(data,0,length);\n\n        String anser = "";\n\/\/        \u5bf9\u63a5\u6536\u5230\u7684\u6570\u636e\u8fdb\u884c\u5224\u65ad\n        if("\u56db\u5927\u540d\u8457\u662f\u54ea\u4e9b".equals(s)){\n            anser = "\u56db\u5927\u540d\u8457\u662f\u300a\u7ea2\u697c\u68a6\u300b\u3001\u300a\u6c34\u6d52\u4f20\u300b\u3001\u300a\u4e09\u56fd\u6f14\u4e49\u300b\u3001\u300a\u897f\u6e38\u8bb0\u300b";\n        }else{\n            anser="\u4e9a\u7ec6\u4e9a\u4f60";\n        }\n        data = anser.getBytes();\n\/\/        \u5c01\u88c5\n        packet = new DatagramPacket(data,data.length, InetAddress.getByName("127.0.0.1"),9998);\n        socket.send(packet);\n\n\/\/        \u5173\u95ed\u6d41\n        socket.close();\n        System.out.println("A\u7aef\u9000\u51fa");\n    }\n}<\/code><\/pre>\n
\uff082\uff09\u53d1\u9001\u7aef<\/p>\n
package homework;\n\nimport java.io.IOException;\nimport java.net.*;\nimport java.util.Scanner;\n\npublic class Homework02SenderB {\n    public static void main(String[] args) throws IOException {\n\/\/        1.\u51c6\u5907\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\uff0c\u51c6\u59079997\u7aef\u53e3\uff0c\u63a5\u6536\u6570\u636e\n        DatagramSocket socket = new DatagramSocket(9998);\n\n\/\/        2.\u5c06\u9700\u8981\u53d1\u9001\u7684\u6570\u636e\uff0c\u5c01\u88c5\u5230DatagramPacket\u5bf9\u8c61\n        Scanner scan = new Scanner(System.in);\n        System.out.println("\u8bf7\u8f93\u5165\u4f60\u7684\u95ee\u9898\uff1f");\n        String question = scan.next();\n        byte[] data = question.getBytes();\n\n        DatagramPacket packet = new DatagramPacket(data,data.length, InetAddress.getByName("127.0.0.1"),8888);\n        socket.send(packet);\n\n\/\/        3.\u63a5\u6536\u4eceA\u7aef\u53e3\u56de\u590d\u7684\u6d88\u606f\n        byte[] buf = new byte[1024];\n        packet = new DatagramPacket(buf,buf.length);\n        socket.receive(packet);\n\/\/        \u62c6\u5305\u53d6\u51fa\u6570\u636e\u5e76\u663e\u793a\n        int length = packet.getLength();\/\/\u83b7\u53d6\u63a5\u6536\u5230\u7684\u5b9e\u9645\u957f\u5ea6\n        data = packet.getData();\n        String  s= new String(data,0,length);\n        System.out.println(s);\n\/\/        4.\u5173\u95ed\u6d41\n        socket.close();\n        System.out.println("B\u7aef\u9000\u51fa");\n\n    }\n}<\/code><\/pre>\n
<\/h4>\n
3\u7b2c\u4e09\u9898<\/h4>\n
\"image-20230322231316876\"<\/div><\/p>\n
\uff081\uff09\u5ba2\u6237\u7aef<\/p>\n
package homework;\n\nimport java.io.*;\nimport java.net.InetAddress;\nimport java.net.Socket;\nimport java.net.UnknownHostException;\nimport java.util.Scanner;\n\n\/**\n * \u6587\u4ef6\u4e0b\u8f7d\u7684\u5ba2\u6237\u7aef\n *\/\npublic class Homework03Client {\n    public static void main(String[] args) throws Exception {\n\/\/        1.\u63a5\u6536\u7528\u6237\u8f93\u5165\uff0c\u6307\u5b9a\u4e0b\u8f7d\u6587\u4ef6\n        Scanner scan = new Scanner(System.in);\n        System.out.println("\u8bf7\u8f93\u5165\u4e0b\u8f7d\u6587\u4ef6\u540d");\n        String downLoadFileName= scan.next();\n\n\/\/        2.\u8fde\u63a5\u5ba2\u6237\u7aef\u51c6\u5907\u53d1\u9001\n        Socket socket = new Socket(InetAddress.getLocalHost(),8888);\n\/\/        3.\u63a5\u6536\u6570\u636eSocket \u5173\u8054\u7684\u8f93\u51fa\u6d41\n        OutputStream outputStream = socket.getOutputStream();\n        outputStream.write(downLoadFileName.getBytes());\n\/\/        \u5199\u5165\u7ed3\u675f\u7684\u6807\u8bb0\n        socket.shutdownOutput();\n\/\/        4.\u8bfb\u53d6\u670d\u52a1\u7aef\u8fd4\u56de\u7684\u6587\u4ef6\uff08\u5b57\u8282\u6570\u7ec4\uff09\n        BufferedInputStream bis = new BufferedInputStream(socket.getInputStream());\n        byte[] bytes= StreamUtil.streamToByTeArray(bis);\n\/\/        5.\u5f97\u5230\u4e00\u4e2a\u8f93\u51fa\u6d41\uff0c\u51c6\u5907\u5c06bytes \u5199\u5165\u5230\u78c1\u76d8\u6587\u4ef6\n        String filePath = "D:\\\\smillPicture"+downLoadFileName;\n        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));\n\n\/\/        6.\u5173\u95ed\u76f8\u5173\u8d44\u6e90\n        socket.close();\n        bis.close();\n        bos.close();\n        outputStream.close();\n        System.out.println("\u5ba2\u6237\u7aef\u4e0b\u8f7d\u5b8c\u6bd5");\n\n    }\n}<\/code><\/pre>\n
\uff082\uff09\u670d\u52a1\u7aef<\/p>\n
package homework;\n\nimport java.io.*;\nimport java.net.ServerSocket;\nimport java.net.Socket;\n\n\/**\n * \u670d\u52a1\u7aef,\u5148\u5199\u6587\u4ef6\u4e0b\u8f7d\u7684\u670d\u52a1\u5668\n *\/\npublic class Homework03Server {\n    public static void main(String[] args) throws Exception {\n\/\/        1.\u76d1\u542c8888\u7aef\u53e3\uff0c\u7b49\u5f85\u670d\u52a1\u5668\u8fde\u63a5,\u5e76\u4e0b\u8f7d\u6587\u4ef6\n        ServerSocket serverSocket = new ServerSocket(8888);\n\/\/        2.\u7b49\u5f85\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5\n        Socket socket = serverSocket.accept();\n\/\/        3.\u8bfb\u53d6\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u9700\u6c42\n        InputStream inputStream = socket.getInputStream();\n\/\/        \u5199\u5165\u5230\u5b57\u8282\u6570\u7ec4\u4e2d\n        byte[] buf = new byte[1024];\/\/\u6587\u4ef6\u540d\u7684\u5927\u5c0f\uff0c\u4e0d\u4e00\u5b9a\u8fd9\u4e48\u5927\n        int len =0;\n        String downLoadFileName ="";\n\/\/        \u4f7f\u7528while\u8003\u8651\u5c06\u6765\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u8f83\u5927\n        while((len=inputStream.read(buf))!=-1){\n            downLoadFileName +=new String(buf,0,len);\n        }\n        System.out.println("\u6587\u4ef6\u4e0b\u8f7d\u7684\u540d\u5b57\u4e3a\uff1a"+downLoadFileName);\n\/\/        \u670d\u52a1\u5668\u4e0a\u53f32\u4e2a\u6587\u4ef6\uff0c\u5176\u4e2d\u6709\u4f60\u5728\u8bf4\u6bdb\u7ebf\uff0c\u5df4\u5c71\u695a\u6c34\u51c4\u51c9\u5730.mp3,\n\/\/        \u5982\u679c\u8f93\u5165\u5176\u4ed6\uff0c\u8fd4\u56de\u4f60\u5728\u8bf4\u6bdb\u7ebf\n        String resFileName ="";\n        if("\u5df4\u5c71\u695a\u6c34\u51c4\u51c9\u5730".equals(downLoadFileName)){\n            resFileName = "src\\\\\u8d70\u9a6c.mp3";\n        }else {\n            resFileName = "src\\\\\u4f60\u5728\u8bf4\u6bdb\u7ebf.txt";\n        }\n\/\/        4.\u521b\u5efa\u4e00\u4e2a\u8f93\u5165\u6d41\uff0c\u8bfb\u53d6\u6587\u4ef6\n        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(resFileName));\n\n\/\/        5.\u4f7f\u7528\u5de5\u5177\u7c7bStreamUtils\uff0c\u8bfb\u53d6\u6587\u4ef6\u5230\u4e00\u4e2a\u5b57\u8282\u6570\u7ec4\u4e2d\n        byte[] bytes =   StreamUtil.streamToByTeArray(bis);\n\n\/\/        6.\u5f97\u5230Socket\u5173\u8054\u7684\u8f93\u51fa\u6d41\n        BufferedOutputStream bos = new BufferedOutputStream(socket.getOutputStream());\n\/\/        7.\u5199\u5165\u5230\u6570\u636e\u901a\u9053\n        bos.write(bytes);\n        socket.shutdownOutput();\n\/\/        8.\u5173\u95ed\u8d44\u6e90\n        bis.close();\n        inputStream.close();\n        bos.close();\n        socket.close();\n        serverSocket.close();\n        System.out.println("\u9000\u51fa");\n\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u7b2c\u4e8c\u5341\u4e00\u7ae0\u3001\u7f51\u7edc\u7f16\u7a0b 1\u3001\u7f51\u7edc\u7684\u76f8\u5173\u6982\u5ff5 1.1\u3001\u7f51\u7edc\u901a\u4fe1 1\u3001\u6982\u5ff5\uff1a\u4e24\u53f0\u8bbe\u5907\u4e4b\u95f4\u901a\u8fc7\u7f51\u7edc\u5b9e\u73b0\u6570\u636e\u4f20\u8f93 2\u3001\u7f51 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-5508","post","type-post","status-publish","format-standard","hentry","category-21"],"_links":{"self":[{"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/posts\/5508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/comments?post=5508"}],"version-history":[{"count":1,"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/posts\/5508\/revisions"}],"predecessor-version":[{"id":5509,"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/posts\/5508\/revisions\/5509"}],"wp:attachment":[{"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/media?parent=5508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/categories?post=5508"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/zyg.luchers.cn\/index.php\/wp-json\/wp\/v2\/tags?post=5508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}