[TOC]
转载地址:https://www.bilibili.com/video/av75603750?p=3 《Socket网络编程进阶与实战》系列视频
服务端
package networkdemo;
/*
* @Description: 请输入....
* @Author: 麦子
* @Date: 2020-01-06 20:28:09
* @LastEditTime : 2020-01-06 22:01:11
* @LastEditors : 麦子
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
public class TCPService {
public static void main(String[] args) throws IOException {
ServerSocket server = new ServerSocket(2000);
System.out.println("服务器准备就绪");
System.out.println("服务器信息: " + server.getInetAddress() + " P: " + server.getLocalPort());
// 等待客户端连接
for (;;) {
Socket client = server.accept();
ClientHandler clientHandler = new ClientHandler(client);
clientHandler.start();
}
}
/**
* 客户端消息处理
*/
private static class ClientHandler extends Thread {
private Socket socket;
private boolean flag = true;
ClientHandler(Socket socket) {
this.socket = socket;
}
@Override
public void run() {
System.out.println("新客户端连接: " + socket.getInetAddress() + " P:" + socket.getPort());
try {
PrintStream socketOutPut = new PrintStream(socket.getOutputStream());
// 得到输入流,用于接收数据
BufferedReader socketInput = new BufferedReader(new InputStreamReader(socket.getInputStream()));
do {
// 客户端拿到一条数据
String str = socketInput.readLine();
if ("bye".equalsIgnoreCase(str)) {
flag = false;
// 回送
socketOutPut.println("bye");
} else {
// 打印到屏幕,并回送数据长度
System.out.println(str);
socketOutPut.println("服务器回送: " + str.length());
}
} while (flag);
socketInput.close();
socketOutPut.close();
} catch (Exception e) {
System.out.println("连接异常断开");
} finally {
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
System.out.println("客户端已退出: " + socket.getInetAddress() + " P:" + socket.getPort());
}
}
}
客服端
package networkdemo;
/*
* @Description: 请输入....
* @Author: 麦子
* @Date: 2020-01-06 20:29:40
* @LastEditTime : 2020-01-06 22:02:45
* @LastEditors : 麦子
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.Inet4Address;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.concurrent.TimeUnit;
public class TCPClient {
public static void main(String[] args) throws UnknownHostException, IOException {
Socket socket = new Socket();
// 超时时间
socket.setSoTimeout(3_000);
// 连接本地, 端口2000,超时时间是3000
socket.connect(new InetSocketAddress(Inet4Address.getLocalHost(), 2_000), 3_000);
System.out.println("已发起服务器连接,并进入后续流程");
System.out.println("客户端信息: " + socket.getLocalAddress() + " P:" + socket.getLocalPort());
System.out.println("服务器信息: " + socket.getInetAddress() + " P:" + socket.getPort());
try {
// 发送接收数据
todo(socket);
} catch (Exception e) {
System.out.println("异常关闭");
}
socket.close();
System.out.println("客户端已退出");
}
//
private static void todo(Socket client) throws IOException, InterruptedException {
// 构建键盘输入流
InputStream in = System.in;
BufferedReader input = new BufferedReader(new InputStreamReader(in));
// 得到Socket输出流,并转换为打印流
OutputStream outputStream = client.getOutputStream();
PrintStream socketPrintStream = new PrintStream(outputStream);
// 从服务器获取数据
InputStream inputStream = client.getInputStream();
BufferedReader socketBufferedReader = new BufferedReader(new InputStreamReader(inputStream));
boolean flag = true;
do {
// 键盘读取一行
String str = input.readLine();
// 发送到服务器
socketPrintStream.println(str);
System.out.println("我在等待-----------------");
TimeUnit.SECONDS.sleep(2);
// 从服务器读取一行
String echo = socketBufferedReader.readLine();
if ("bye".equalsIgnoreCase(echo)) {
flag = false;
} else {
System.out.println(echo);
}
} while (flag);
// 资源释放
socketPrintStream.close();
socketBufferedReader.close();
}
}
运行结果
服务器准备就绪
服务器信息: 0.0.0.0/0.0.0.0 P: 2000
新客户端连接: /127.0.0.1 P:63223
我是麦子
已发起服务器连接,并进入后续流程
客户端信息: /127.0.0.1 P:63223
服务器信息: localhost/127.0.0.1 P:2000
我是麦子
我在等待-----------------
服务器回送: 4
注意
TCP上面的这种聊天是一种,发送信息, 然后等待服务器给的回复的模式。他是必须等待那边的返回。优化的在后面博客进行处理。
「真诚赞赏,手留余香」
真诚赞赏,手留余香
使用微信扫描二维码完成支付