java socket 编程

场景：java Socket通讯编程

java Socket通信编程

客户端：Client.java

package learn;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

/**
 * @version 1.0
 * @date 2012-2-12 下午02:00:12 
 * @author lixunhui
 * @since JDK1.6
 */

public class Client {
	public static void main(String[] args) throws IOException, Exception {
		Socket client=null;
		BufferedReader br=null;
		PrintWriter out=null;
		client=new Socket("localhost",9999);
		br=new BufferedReader(new InputStreamReader(client.getInputStream()));
		out=new PrintWriter(client.getOutputStream(),true);
		
	}
}

 

服务器端：Server.java

 

package learn;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * @version 1.0
 * @date 2012-2-12 下午02:20:12 
 * @author lixunhui
 * @since JDK1.6
 */
 
public class Server {
	public static void main(String[] args) throws IOException {
		ServerSocket server = null;
		Socket client=null;
		BufferedReader read=null;
		PrintWriter write=null;
		server=new ServerSocket(9999);
		boolean flag=true;
		while(flag){
			System.out.println("服务器运行，等待客户端连接......");
			client=server.accept();
			read=new BufferedReader(new InputStreamReader(client.getInputStream()));
			write=new PrintWriter(client.getOutputStream(),true);
			boolean f=true;
			while(f){
				String str=read.readLine();
				System.out.println(str);
				if(str==null||"".equals(str)){
					f=false;
				}else{
					if(str.equalsIgnoreCase("bye")){
						f=false;
					}else{
						write.println("ECHO:"+str);
					}
				}
			}
		}
	}
}