1.   
2. package com.hyq.src;   
3.   
4. import java.io.InputStream;   
5. import java.net.URL;   
6.   
7.   
8. public class Test {   
9.        
10.     /**  
11.      * @param args  
12.      */  
13.     public static void main(String[] args) {   
14.         try{   
15.             Test.testNetStream();   
16.         }catch(Exception e){   
17.             e.printStackTrace();   
18.         }   
19.     }    
20.     public static void testNetStream()throws Exception{   
21.         URL url=new URL("http://www.imust.cn/");   
22.         InputStream in=url.openStream();   
23.         byte[] b=new byte[100000];   
24.         in.read(b);   
25.         in.close();   
26.         String s=new String(b);   
27.         System.out.println(s);   
28.     }   
29. }  

package com.hyq.src;import java.io.InputStream;import java.net.URL;public class Test {		/**	 * @param args	 */	public static void main(String[] args) {		try{			Test.testNetStream();		}catch(Exception e){			e.printStackTrace();		}	} 	public static void testNetStream()throws Exception{		URL url=new URL("http://www.imust.cn/");		InputStream in=url.openStream();		byte[] b=new byte[100000];		in.read(b);		in.close();		String s=new String(b);		System.out.println(s);	}}

package com.hyq.src;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;



public class Test {

    public static void main(String[] args)
    {
        System.out.println(Test.getHtmlSource("http://sports.163.com/zc/"));
    }

    public static String getHtmlSource(String url){
        StringBuffer stb=new StringBuffer();
        try{
            URLConnection uc=new URL(url).openConnection();
            BufferedReader br=new BufferedReader(new InputStreamReader(uc.getInputStream(),"gb2312"));
            String temp=null;
            while((temp=br.readLine())!=null){
                stb.append(temp).append("\n");
            }
            br.close();

        }catch(Exception e){
            e.printStackTrace();
        }
        return stb.toString();

    }


}