Open and close web browser

[ali_sakar]

Hi all,

My requirement is to fire a particular URL through my java program. I am able to achieve the same but the problem is it opens up my IE but doesnt closes it. I call this java program in a loop.

How do i open a web browser(platform independent), fire the URL and then close the web browser.

Thanking in advance.

Ali.

[travishein]

i don't know of any way to have the external to the browser Java program close the browser. the browser would be opened from your program by an operating system dependent manner too right.

does the web browser display anything ? it might be possible to have the page that is displayed contain some javascript to do a kind of 'window.close()' thing. that might still only prompt the user to ask if they are sure they want the script to close the window.

if your program just needs to invoke a url to have the server do something because that url got invoked, would it be possible to do this directly from your code instead of opening a browser in the first place ?

for example,

/**
* performs a HTTP GET to a url
* @param response if not null, the HTTP GET response is read into this.
* @return the http response code.
*/
int invokeUrl(URL url, StringBuffer response) {
    int statusCode = 0;
    HttpURLConnection connection = null;  
    try {
      //Create connection
      connection = (HttpURLConnection)url.openConnection();
      connection.setRequestMethod("GET");

      connection.setUseCaches (false);
      connection.setDoInput(true);
      connection.setDoOutput(true);

      //Get Response  
      if (response != null) {
        InputStream is = connection.getInputStream();
        BufferedReader rd = new BufferedReader(new InputStreamReader(is));
        String line;
        StringBuffer response = new StringBuffer(); 
        while((line = rd.readLine()) != null) {
          response.append(line);
          response.append('\r');
        }
        rd.close();
      }
      
      statusCode = connection.getResponseCode();

    } catch (Exception e) {
      statusCode = 500;
      e.printStackTrace();
  
    } finally {

      if(connection != null) {
        connection.disconnect(); 
      }
    }
    return statusCode;
  }

[ali_sakar]

Thanx for the reply.

I cannot have a javascript on that page coz its a link provided by a third party. I just have to call this link after changing a couple of values. I have used

Process p = Runtime.getRuntime().exec("C:\\Program Files\\Internet Explorer\\iexplore.exe" +" " + Url);
//Thread.sleep(5000);
System.out.println("Hello 5" + " " + Url);
p.destroy();

If i dont use

sleep

statement in between then i dont see anything happening on my screen. But if i use sleep then multiple instances of IE opens up, fires the URL passed to it but doesnt closes it.


Ali