Doubt in sendRedirect()

[Senthil Kumar]

Hi all,
Consider i have two servlets(serv1 and serv2) and a JSP.
Initially the request from JSP to serv1 and in serv1,i have a code as
response.sendRedirect("/serv2.do");
In this case will i b able to access the form parameters in serv2?
Since the request to serv2 goes as new request from the client,wont i b able to access the Form Fields values?

[Vassili Vladimir]

Did you try a simple application that illustrates that ?

[Senthil Kumar]

Yes i hav tried it in an application.but am not able to access the request parameters.
But my doubt is since the request goes as a new one to the serv2 then y am not able to access the request Parameters(Form Field values)???

[Bosun Bello]

Senthil, you are correct. A new request is initiated with sendRedirect. Why don't you just forward the request?

[Varun Narang]

Hello there,
Since redirection of the request creates a new request and sends it to the path you specify in the sendRedirect method, you'll not be able to retrieve the request/form-field values in the next servlet. So, before you redirect you need to fetch all the necessary information you want to save and put it in session or application scope (setting session/application attributes may help), based on the requirement.
You can try putting the required values in a Map or something like that and store it in a session/application object by calling setAttribute() methods on them.

Hope this will help.

Regards,
VaruNarang.

[Ben Souther]

The sendRedirect method returns a 302 (moved temporarily) response code to the browser along with a "Location" header containing the URL for the page to which you want to redirect.

If your form's action attribute was 'get' then the form parameters would be appended to the URL as a querystring and, yes, they would be available to the next page. If, on the other hand, the action was 'post', then they would not.

There are some alternatives.
If both pages are part of the same application, you might want to look into RequestDispatcher.forward. With this method, the move to the other page takes place entirely on the server. The same HttpServletRequest object is passed to the next page and your parameters will be available.

[Senthil Kumar]

Thanks a lot for all of your replies.....