java爬虫标准流程（简约版）

　　import com.sun.xml.internal.messaging.saaj.util.ByteOutputStream; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL;   class a1{     public static void main(String[] args) {          String add = ＂http://www.weather.com.cn/data/sk/101010100.html＂;         try {             URL url = new URL(add);             HttpURLConnection httpUrlconn = (HttpURLConnection)url.openConnection();             httpUrlconn.setReadTimeout(3000);             httpUrlconn.connect();             if(httpUrlconn.getResponseCode()==200){                 InputStream insp = httpUrlconn.getInputStream();                 ByteOutputStream ops = new ByteOutputStream();                 int intRet = -1;                 while((intRet=insp.read())!=-1){                     ops.write(intRet);                 }                 byte[] bytes = ops.getBytes();                 String   ret = new String(bytes,＂utf-8＂);                 System.out.println(ret);                 httpUrlconn.disconnect();             }          }catch (Exception e){             System.out.print(e);         }      } }