浅谈java的TCP和UDP编程(附实例讲解)

TCP

客户端：

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.Socket;

public class MyClient {

public static void main(String[] args) throws Exception{

Socket socket = null;

BufferedReader in = null;

PrintWriter out = null;

BufferedReader input = null;

// 请求指定ip和端口号的服务器

socket = new Socket("127.0.0.1",3333);

while(true){

in = new BufferedReader(new InputStreamReader(socket.getInputStream()));

out = new PrintWriter(socket.getOutputStream(), true);

// 接收控制台的输入

input = new BufferedReader(new InputStreamReader(System.in));

// out.println("this is client info!");

String info = input.readLine();

out.println(info);

String str = in.readLine();

System.out.println("客户端显示--》服务器的信息：" + str);

}

//in.close();

//out.close();

}

服务端：

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.ServerSocket;

import java.net.Socket;

public class MyServices {

public static void main(String[] args) throws Exception{

ServerSocket ss = null;

Socket socket = null;

BufferedReader in = null;

PrintWriter out = null;

BufferedReader input = null;

// 监听3333端口

ss = new ServerSocket(3333);

// 等待接收客户端的请求

socket = ss.accept();

while(true){

// 获取连接对象的输入流

in = new BufferedReader(new InputStreamReader(socket.getInputStream()));

// 获取客户端的输入信息

String str = in.readLine();

input = new BufferedReader(new InputStreamReader(System.in));

System.out.println("服务器显示-->客户端输入数据：" + str);

out = new PrintWriter(socket.getOutputStream(),true);

// 将数据输出到客户端

// out.println("hehe");

String info = input.readLine();

out.println(info);

}

// in.close();

// out.flush();

// out.close();

}

UDP

客户端：

浅谈java的TCP和UDP编程(附实例讲解)

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