一个简单的socket例子

package com.test.java;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.net.Socket;
/**
 * 客户端
 * @author Administrator
 *
 */
public class Client {
    public static void main(String args[]) throws Exception{
        Socket socket = new Socket("127.0.0.1", 8888);
        //获取输出流，向服务器端发送数据
        DataOutputStream dataOut = new DataOutputStream(socket.getOutputStream());
        //获取输入流，用于获取服务器端发送的数据
        DataInputStream dataIn = new DataInputStream(socket.getInputStream());
        dataOut.writeUTF("我是客户端：请求连接");
        System.out.println("客户端:"+dataIn.readUTF());
        socket.close();
        
    }
}

package com.test.java;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.net.ServerSocket;
import java.net.Socket;
/**
 * 服务器端
 * @author Administrator
 *
 */
public class Server {
    public static void main(String args[]) throws Exception{
        ServerSocket serverSocket = new ServerSocket(8888);
        Socket socket = serverSocket.accept();
        //获取用于向客户端发送数据的输出流
        DataOutputStream dataOut = new DataOutputStream(socket.getOutputStream());
        //获取用于接收客户端发送的数据
        DataInputStream dataIn = new DataInputStream(socket.getInputStream());
        System.out.println("服务器端"+dataIn.readUTF());
        dataOut.writeUTF("服务器端连接成功！");
        socket.close();
        serverSocket.close();
    }
}