simple question from newbie

[paulychips]

I've been asked to write a servlet to monitor web services, and I am new to servlets.
Here's my question:

How can I test the HTML output of a URL request?

For example, when visiting the URL to a web service, it returns a simple HTML page that reads "And now...some services"

I need to write a servlet on an application server that runs frequently to make sure that the URL has this message.

[sjalle]

Use the class below like:

String urlStr="http://www.thesite.com/";
URL url=new URL(urlStr);
SiteConn sC=new SiteConn(url);
StringBuffer sb=sC.getContents();
if (sb.toString.equals("And now...some services")) {
  // well well...
}

(note: it returns the entire html code for the url)

SiteConn class:

public class SiteConn {
  URL url=null;
  public SiteConn(URL  url) {
    this.url=url;
  }
  public StringBuffer getContents() throws Exception {
    StringBuffer buffer;
    String line;
    int responseCode;
    HttpURLConnection connection;

    BufferedReader dataInput;
    connection = (HttpURLConnection)url.openConnection();
    responseCode = connection.getResponseCode();
    if (responseCode != HttpURLConnection.HTTP_OK) {
      throw new Exception("HTTP response code: " +
         String.valueOf(responseCode));
    }
    try {
      buffer = new StringBuffer();
      InputStream input = connection.getInputStream();
      dataInput = new BufferedReader(new InputStreamReader(input));

      while ( (line = dataInput.readLine()) != null) {
        buffer.append(line);
        buffer.append('\n');
        //System.out.println("line: " + line);
      }
      input.close();
    } catch (Exception ex) {
      ex.printStackTrace(System.err);
      return null;
    }
   return buffer;
  }
}