JAVA 服务端和客户端Socket通信的简单例子

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/Cyan1614/article/details/78253177

服务端：

package socketTest;

import java.net.*;
import java.io.*;

public class GreetingSocket {
    public static void main(String[] args) {
        try {
            ServerSocket serverSocket = new ServerSocket(6066);
            while (true) {
                //wait Client connect
                Socket client = serverSocket.accept();
                //get Client message
                DataInputStream input = new DataInputStream(client.getInputStream());
                String clientInputStr = input.readUTF();
                System.out.println(clientInputStr);
                //send Client message
                DataOutputStream output = new DataOutputStream(client.getOutputStream());
                String clientOutputStr = "Server";
                output.writeUTF(clientOutputStr);
                //close input output
                input.close();
                output.close();
            }
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
} 

客户端：

package socketTest;

import java.io.*;
import java.net.*;

public class ClientSocket {
    public static void main(String[] args) {
        Socket socket = null;
        while (true) {
            try {
                //connect Server
                socket = new Socket("localhost", 6066);
                //send Server message
                DataOutputStream out = new DataOutputStream(socket.getOutputStream());
                String str = new BufferedReader(new InputStreamReader(System.in)).readLine();
                out.writeUTF(str);
                //get Server message
                DataInputStream input = new DataInputStream(socket.getInputStream());
                String serverInputStr = input.readUTF();
                System.out.println(serverInputStr);
                //close output input
                out.close();
                input.close();
            } catch (Exception e) {
                System.out.println(e.getMessage());
            }
        }
    }
}