package net;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.ServerSocket;

import java.net.Socket;

/**

* @author ： CodeWater

* @create ：2022-02-28-14:40

* @Function Description ：简单的TCP网络程序；实现从客户端向服务器端写入数据

* 服务器端

*/

public class ServerTCP {

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

System.out.println("服务器端启动，等待连接中.......");

ServerSocket ss = new ServerSocket(6666);

//接收连接accept方法，返回socket对象

Socket server = ss.accept();

InputStream is = server.getInputStream();

byte[] b = new byte[1024];

int len = is.read(b);

// read方法返回的是读取的数据长度；参数是写入数据的存储地方

// System.out.println("InputStrean流read方法返回的数据: " + len );

String msg = new String(b, 0, len);

System.out.println(msg);

//----------向客户端回写数据--------------

OutputStream out = server.getOutputStream();

out.write("我很好，谢谢你".getBytes());

out.close();

is.close();

server.close();

}

}