Question

isPostBack???

Asked by: vikram_1982

Hai,

Is there any function similar to the isPostBack of ASP.Net in JSP?

Vikram.V

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Asked On
2004-04-23 at 05:43:19ID20964933
Tags

ispostback

,

jsp

Topic

Java Server Pages (JSP)

Participating Experts
3
Points
20
Comments
4

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Answers

 

by: Nick_72Posted on 2004-04-23 at 05:43:51ID: 10898940

what does that function do?

 

by: searlasPosted on 2004-04-23 at 07:42:11ID: 10900245

Not exactly, but a reasonable replacement for
if isPostBack...

would be:
if ( "POST".equals(request.getMethod()) ) {
...
}

 

by: TimYatesPosted on 2004-04-23 at 07:52:03ID: 10900336

 

by: Nick_72Posted on 2004-04-23 at 07:59:29ID: 10900414

ah ok, the IsPostBack property can be used to determine if the page is submitted to itself. In that case, you can use both getMethod and getRequestURL to determine if the call came from the same page:

Lets say your pageURL is "http://somesite.com/page.html"

if ( "POST".equalsIgnoreCase(request.getMethod()) &&
   ((request.getRemoteURL() != null &&
      request.getRemoteURL().toString().equalsIgnoreCase("http://somesite.com/page.html")) {

    //you have a postback call :)
}

20120131-EE-VQP-002

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