javasocket客户端连接服务端简单示例

2019-11-14 15:30:22

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本例只做简单功能演示，代码并不严谨，只是说明客户端如何实现连接服务端简单代码。

代码在集成Eclipse工具下测试编译运行环境如下图所示：

客户端echoClient.java代码：

 1 package com.zhengzz.echo; 2  3 import java.io.BufferedReader; 4 import java.io.IOException; 5 import java.io.InputStreamReader; 6 import java.io.PRintWriter; 7 import java.net.Socket; 8 import java.net.UnknownHostException; 9 10 class EchoC{11     12     private Socket socket;13     14     public EchoC() {15         // TODO Auto-generated constructor stub16         try {17             socket = new Socket("localhost", 60000);18         } catch (UnknownHostException e) {19             e.printStackTrace();20         } catch (IOException e) {21             e.printStackTrace();22         }23     }24     25     public void Client() {26         try {27             BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));28             PrintWriter pw = new PrintWriter(socket.getOutputStream(), true);29             BufferedReader lbr = new BufferedReader(new InputStreamReader(System.in));30             31             String linestr = null;32             while ((linestr = lbr.readLine()) != null) {33                 34                 pw.println(linestr);35                 36                 System.out.println(br.readLine());37                 38                 if (linestr.equals("bye#")) {39                     break;40                 }41             }42             43             44         } catch (IOException e) {45             e.printStackTrace();46         }47     }48 }49 50 public class echoClient {51 52     public static void main(String[] args) {53         new EchoC().Client();54     }55 56 }

服务端echoServer.java代码：

 1 package com.zhengzz.echo; 2  3 import java.io.BufferedReader; 4 import java.io.IOException; 5 import java.io.InputStreamReader; 6 import java.io.PrintWriter; 7 import java.net.ServerSocket; 8 import java.net.Socket; 9 10 class EchoS{11     12     private ServerSocket serverSocket;13     14     public EchoS() {15         16         try {17             serverSocket = new ServerSocket(60000);18         } catch (IOException e) {19             e.printStackTrace();20         }21         22     }23     24     public void Server() {25         while (true) {26             try {27                 Socket socket = serverSocket.accept();28                 29                 System.out.println("client:" + socket.getInetAddress() + ":" + socket.getLocalPort());30 31                 BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));32                 PrintWriter pw = new PrintWriter(socket.getOutputStream(), true);33 34                 String linestr;35 36                 while ((linestr = br.readLine()) != null) {37 38                     System.out.println(linestr);39 40                     pw.println("--->" + linestr);41 42                 }43             } catch (IOException e) {44                 System.out.println("连接断开：（");45             }46 47         }48 }49 }50 51 public class echoServer {52 53     public static void main(String[] args) {54         new EchoS().Server();55     }56 57 }