网页图片收集

import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;


public class CollectData {
private static String fileName="d:\\temp.html";
public static String sourceCode(String urlStr)
{
      StringBuffer buf = new StringBuffer();
  try {
      URL url = new URL(urlStr);
      HttpURLConnection connection=(HttpURLConnection)url.openConnection();
      connection.setConnectTimeout(30000);
      connection.setReadTimeout(30000);
      connection.connect();
      InputStream in = connection.getInputStream();
      BufferedReader read = new BufferedReader(new InputStreamReader(in));
      OutputStreamWriter osw=new OutputStreamWriter(new FileOutputStream(fileName));
      String line = null;
      while ((line = read.readLine()) != null) {
        //buf.append(line);
        osw.write(line);
      }
      in.close();
      read.close();
      osw.flush();
      connection.disconnect();
      System.out.println("文件写入完毕");
    } catch(Exception ex)
    {
    ex.printStackTrace();
    }
      return buf.toString();
  }
  public static void main(String []args)
  {
  sourceCode("http://www.baidu.com");
  //String a="a中文boooi地区性";
  //System.out.println(a.length());
  }
}