Java TCP编程

Java编写TCP编程--回射信息实例

注：简单的tcp联系，还存在问题，readUTF()为阻塞型，如果之前的用户一直不输入，则一直阻塞，之后的用户再连接会出现问题。

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

//TCPServer.java
public class TCPServer {
    public static void main(String[] args) throws IOException {
        ServerSocket ss = new ServerSocket(6666);
        while (true) {
            Socket s = ss.accept();
            DataInputStream dis = new DataInputStream(s.getInputStream());
            System.out.println("Server:" + dis.readUTF());
            dis.close();
            s.close();
        }
    }
}

 

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

//TCPClient.java
public class TCPClient {
    public static void main(String[] args) throws IOException {
        Socket s = new Socket("127.0.0.1", 6666);
        OutputStream os = s.getOutputStream();
        DataOutputStream dos = new DataOutputStream(os);
        dos.writeUTF("hello server");
        dos.flush();
        dos.close();
        s.close();
    }
}