Java：讀取網站的源碼方法

package com.happy.url;

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

/**
 * Java read web resource
 * @author Happy
 *
 */
public class GetWebContent {
 public static void main(String[] args) {
  System.out.println(GetWebContent.getWebCon("http://www.google.com"));
 }
 
 public static String getWebCon(String domain) {
  System.out.println("開始讀取內容...("+domain+")");
  StringBuffer sb = new StringBuffer();
  try {
   URL url = new URL(domain);
   BufferedReader in = new BufferedReader(new InputStreamReader(url
     .openStream()));
   String line;
   while ((line = in.readLine()) != null) {
    sb.append(line);
    sb.append(in.readLine());
   }
   in.close();
  } catch (Exception e) { // Report any errors that arise
   sb.append(e.toString());
   System.err.println(e);
   System.err.println("Usage: java HttpClient <URL> [<filename>]");
  }
  return sb.toString();
 }

}