Java Socket简单实现客户端与服务端通信

Java Socket简单实现客户端与服务端通信

实现Socket通信的步骤

1. 创建一个ServerSocket监听8888端口

2. 等待请求

3. 接收到请求之后使用socket进行通信，创建BufferedReader用于读取数据

4. 创建PrintWriter,用于发送数据

5. 关闭资源

服务端代码

 
package socket;
​
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
​
/**
 * Created by RogerLaw on 2016/10/10.
 */
public class Server2 {
​
    public static void main(String[] args) {
​
        try {
            //创建一个ServerSocket监听8888端口
            ServerSocket serverSocket=new ServerSocket(8888);
            //等待请求
            Socket socket=serverSocket.accept();
            //接收到请求之后使用socket进行通信，创建BufferedReader用于读取数据
            BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String line=is.readLine();
            System.out.println("received form client:"+line);
            //创建PrintWriter,用于发送数据
            PrintWriter printWriter=new PrintWriter(socket.getOutputStream());
            printWriter.println("received data"+line);
            printWriter.flush();
            //关闭资源
            printWriter.close();
            is.close();
            socket.close();
            serverSocket.close();
​
        } catch (IOException e) {
            e.printStackTrace();
        }
​
    }
}
​

客户端代码

 
package socket;
​
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
​
/**
 * Created by RogerLaw on 2016/10/10.
 */
public class Client2 {
    public static void main(String[] args) {
        String msg="Client Data";
​
​
        try {
            //创建一个Socket和本地的8888端口连接
            Socket socket=new Socket("127.0.0.1",8888);
            //使用Socket创建PrintWriter和PrintBufferedReader进行读写数据
            PrintWriter printWriter=new PrintWriter(socket.getOutputStream());
            BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
            //发送数据
            printWriter.println(msg);
            printWriter.flush();
            //接收数据
            String line=is.readLine();
            System.out.println("received from server:"+line);
            //关闭资源
            printWriter.close();
            is.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
​