Java关闭Socket来终止线程详解编程语言

package Threads; 
 
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.net.Socket; 
 
/** 
 * Created by Frank 
 */ 
public class StopClose extends Thread { 
    protected Socket io; 
 
    public void run() { 
        try { 
            io = new Socket("java.sun.com", 80); 
            BufferedReader is = new BufferedReader(new InputStreamReader(io.getInputStream())); 
            System.out.println("StopClose reading"); 
 
            /** 
             * 死锁，因为读取响应之前，HTTP责成客户端发送一个请求（像GET/HTTP/1.0）和一个空行 
             */ 
            String line = is.readLine(); 
 
            /** 
             * 所以我们永远不可能到达这里 
             */ 
            System.out.printf("StopClose FINISHED after reading %s!", line); 
 
        } catch (IOException ex) { 
            System.out.println("StopClose terminating:" + ex); 
        } 
    } 
 
    public void shutDown() throws IOException { 
        if (io != null) { 
            synchronized (io) { 
                io.close(); 
            } 
        } 
        System.out.println("StopClose.shutDown() complete"); 
    } 
 
    public static void main(String[] args) throws InterruptedException, IOException { 
        StopClose t = new StopClose(); 
        t.start(); 
        sleep(1000*5); 
        t.shutDown(); 
    } 
}