# 1.编辑线程类
~~~
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Socket;
public class ServerThread extends Thread{
private Socket socket;
public ServerThread(Socket socket){
this.socket=socket;
}
@Override
public void run() {
// 从socket中获取字节输入流对象
try (InputStream inputStream = socket.getInputStream()) {
//把字节输入流包装成缓存字节输入流
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
String msg;
while ((msg=bufferedReader.readLine())!=null){
System.out.println("服务器收到信息："+msg);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
~~~
# 2.编写Server类
~~~
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
public static void main(String[] args) {
System.out.println("服务端启动");
try {
// ServerSocket 对象进行服务器端口注册
ServerSocket serverSocket = new ServerSocket(9999);
while (true){
new ServerThread(serverSocket.accept()).start();
}
}catch (Exception e){
e.fillInStackTrace();
}
}
}
~~~
3.客户端
~~~
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
public class Client {
public static void main(String[] args) {
try {
// 创建socket链接请求
Socket socket = new Socket("127.0.0.1", 9999);
// 从socket中获取字节输出流对象
OutputStream socketOutputStream = socket.getOutputStream();
//把字节输出流包装成打印流
PrintStream printStream = new PrintStream(socketOutputStream);
// 扫描器
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("请说：");
printStream.println(scanner.nextLine());
printStream.flush();
}
} catch (Exception e) {
e.fillInStackTrace();
}
}
}
~~~
BIO是一个连接一个线程。
