Java socket模拟聊天程序

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根据TCP/IP协议，通过socket实现网络聊天，分为服务器端和客户端，一下是参考程序。

服务器端程序：

package com.michael.contact;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.ServerSocket;import java.net.Socket;public class Server {public static void main(String args[]) throws IOException {String reces = null;int len;Socket socket = null;OutputStream outputstream = null;InputStream inputstream = null;byte[] rece = new byte[1000];try {ServerSocket serversocket = new ServerSocket(8888); // 服务器的套接字，端口为8888while (true) {socket = serversocket.accept();inputstream = socket.getInputStream();// 得到输入流outputstream = socket.getOutputStream();// 得到输出流len = inputstream.read(rece);// 接受客户端消息if (len != 0)reces = new String(rece, 0, len);System.out.println(reces);BufferedReader bufferreader = new BufferedReader(new InputStreamReader(System.in));outputstream.write(("服务器....." + bufferreader.readLine()).getBytes());// 返回给客户端的欢迎信息}} catch (Exception e) {e.printStackTrace();} finally {inputstream.close();outputstream.close();socket.close();// 记住一定要关闭这些输入，输出流和套接字}}}

客户端程序：

package com.michael.contact;import java.io.BufferedReader;  import java.io.IOException;  import java.io.InputStream;  import java.io.InputStreamReader;  import java.io.OutputStream;  import java.net.InetAddress;  import java.net.Socket;  public class Client {      public static void main(String[] args) throws IOException {          String ServerIpAddress = "127.0.0.1";// 对方的IP          String words = "Hello";// 对方的话          String temp = null;          byte[] serverSay = new byte[1000];// 读取<1KB          InputStreamReader read = null;          int len = 0;          Socket s = null;          OutputStream outputstream = null;          InputStream inputstream = null;          // 取得你给他的IP          System.out.println("请输入对方的IP(默认发给自己):");          read = new InputStreamReader(System.in);          try {              temp = new BufferedReader(read).readLine();              if (!temp.equals(""))                  ServerIpAddress = temp;          } catch (IOException e1) {          }          // 取得你各他的Message          System.out.println("请输入想对他(她)说的话----输入QUIT 退出!!:");          read = new InputStreamReader(System.in);          while (true) {              try {                  temp = "Hello";                  temp = new BufferedReader(read).readLine();                  words = temp;                  if (words.equals("quit"))                      break;                  temp = "客户端....." + words;                  // 发起通信                  s = new Socket(InetAddress.getByName(ServerIpAddress), 8888);// 套接字的IP地址和端口号                  outputstream = s.getOutputStream();                  inputstream = s.getInputStream();                  outputstream.write(temp.getBytes("gbk"));// 向服务器发送消息                  len = inputstream.read(serverSay);// 接受服务器消息                  System.out.println( new String(serverSay, 0, len));// 客户端控制台显示服务器返回的信息              } catch (Exception e) {              } finally {                  inputstream.close();                  outputstream.close();                  s.close();// 记住一定要关闭这些输入，输出流和套接字              }          }// end while      }  }

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