java实现一个helloworld版的http服务器

package hellohb;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

//java里创建线程的方法是new一个Thread的子类，子类里重写run方法，里面写要做的事
//每一个http连接 动用一个线程处理
class ProcessThread extends Thread{
    Socket mConn;
    public ProcessThread(Socket conn) {
        mConn = conn;
    }
    public void run() {
        try {
            char [] rbuf = new char[512];
            BufferedReader br = new BufferedReader(new InputStreamReader(mConn.getInputStream()));
            int rlen;
            while((rlen=br.read(rbuf)) != -1){
                System.out.println(String.valueOf(rbuf, 0, rlen));
            }
            br.close();
            mConn.close();
            System.out.println("thread quit..");
        }
        catch(Exception e){
            throw new Error(e);
        }
    }
}


public class MyHttpServer extends Thread{
    int mCount = 0;
    public MyHttpServer(int port) {
        try {
            ServerSocket serverSock = new ServerSocket(port);
            System.out.println("listen on " + port);
            //最多处理1000个请求退出
            for(int i = 0; i < 1000; i++) {
                //accept是阻塞的,等待tcp连接
                Socket sock = serverSock.accept();
                //收到tcp连接后，立刻开一个线程处理，随即回到accept
                var th = new ProcessThread(sock);
                th.start();
                System.out.println("kick: " + (mCount++));
            }

            System.out.println("server quit..");
            serverSock.close();
        }
        catch(Exception e){
            throw new Error(e);
        }
        
    }
}