[Java] URL

import java.io.InputStream;    
import java.io.InputStreamReader;    
import java.io.BufferedReader;    
import java.io.IOException;    
import java.net.URL;    
import java.net.MalformedURLException;    
public class URLTest{    
        public static void main(String[] args){    
                //設置系統網絡代理服務器    
                //System.setProperty("http.proxyHost","192.168.1.1");    
                //System.setProperty("http.proxyHost","80");    
                try{    
                        //實例化一個URL    
                        URL tirc = new URL("http://www.google.cn/");    
                        //得到遠程主機網頁的字符流信息並封裝給BufferedReader    
                        BufferedReader br = new BufferedReader(new InputStreamReader(tirc.openStream()));    
                        //將信息輸出到屏幕上    
                        while(br.readLine()!= null){    
                                String s = br.readLine();    
                                System.out.println(s);    
                        }    
                                br.close();    
                }    
                catch(MalformedURLException e){    
                        System.out.println(e);    
                }    
                catch(IOException e){    
                        System.out.println(e);    
                }    
        }    
}