基于连接的Java网络编程

实现了基于TCP的Java Socket编程，功能很简单：客户端向服务器端输出一名话"connect"，服务器端接收输出到控制台并向客户端输出一名话"Hello",客户端接收并输出。

1.服务器端

package javase.net.socket;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class TCPServer {
    public static void main(String[] args) {
        try {
            ServerSocket serverSocket = new ServerSocket(8888);
            Socket socket = serverSocket.accept();
            // 读取客户端数据
            InputStream info = socket.getInputStream();
            DataInputStream dis = new DataInputStream(info);
            System.out.println(dis.readUTF());

            // 向客户端输出数据
            OutputStream os = socket.getOutputStream();
            DataOutputStream dos = new DataOutputStream(os);
            dos.writeUTF("Hello!");
            dos.flush();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

 

 

2.客户端：

package javase.net.socket;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;

public class TCPClient {
    public static void main(String[] args) {
        try {
            Socket socket = new Socket("192.168.1.123", 8888);
            // 向服务器端发送数据
            OutputStream os =  socket.getOutputStream();
            DataOutputStream bos = new DataOutputStream(os);
            bos.writeUTF("Connect");
            bos.flush();

            // 接收服务器端数据
            InputStream is = socket.getInputStream();
            DataInputStream dis = new DataInputStream(is);
            System.out.println(dis.readUTF());
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}