如何用java语言获取某个网页的源代码

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;public class WebPageResource {/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stubWebPageResource t6 = new WebPageResource();
String htmls = t6.getPageResource("http://www.keyanhome.com/", "UTF-8");
System.out.println(htmls);
}public String getPageResource(String pageURL,String encoding){StringBuffer sbBuffer = new StringBuffer();
try {
URL url = new URL(pageURL);
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream(),encoding));
String lineString;
while((lineString=in.readLine())!=null)
{
sbBuffer.append(lineString);
sbBuffer.append("\n");
}
in.close();
} catch (Exception e) {
// TODO: handle exception
}
return sbBuffer.toString();}}