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Forwarding the request from one jsp to another jsp with all request parameters?

i have this scenario. User enter some stuff on jsp form in browser and submit. In servlet i process the request and show the jsp page1 to client which has just continue
button. Now on click of continue, i want to forward this request to another jsp page2 with all request parameter present on page1. basically i want to get all request parameters which were present in first request on page 2 also? I am not getting how should i go
for this? I dont think i can use jsp forward as per my understanding it would work only when both when we want to forward from jsp (on server side) not on client side?

There are two ways to implement that:
output all parameters in hidden fields, and submit them in the 2nd request
store everything in the session

Following are a pair of ways to achieve this
Put the information in session object in first request and access it from session object in second.
On the intermediate page displayed, have hidden form elements which will carry the values and send it back on continuing.

You can use Servlet Forward to pass all request parameters to another JSP or Servlet:
getServletContext().getRequestDispatcher("/yourJSP.jsp").forward(request, response);
Servlet forward will forward the existing request to another JSP or Servlet, so all the request parameters and attributes will be available to the destination JSP or Servlet (The reason you can use the Servlet forward is that JSP is also a Servlet after translation).
You may find following resources useful:
Pass data from servlet to jsp
Servlet Redirect vs Forward

Pass parameters from one jsp to another using post method

I want to pass parameters from one jsp to another.
I have tried using the post method, <jsp:forward/>, but it doesn't work.
I have created a <form> in html (parameters passed using POST), which is submitted to a servlet which processes the request and forwards it to another servlet that displays a page.
From this servlet i have created links to another jsp, passing through the parameters as GETs in the URL. However, I actually want to pass the parameters to another jsp using POST, and then pass it on to another jsp.
What solutions do you have or this problem?

Check out the Request Dispatcher. You need to forward the request to the landing JSP.
http://docs.oracle.com/javaee/6/api/javax/servlet/RequestDispatcher.html

Sounds like you are creating a multipage form that gathers information from the user across several distinct pages. In that case one option is to use hidden fields on a form to store the previous values. This of course means that as the pages progress the amount of data passing back and forth from client to server increases.
You may consider a server side approach by storing the interim values in a database for instance, then only passing a token back to the client. When the next JSP page is submitted, use the token to look up the values in the database.

JSP has built-in request object.when one jsp redirect to another jsp with some parameter, you can get parameter value using this request object.
<%
String param1 = request.getParameter("parameter_name");
%>
you can find example here -
http://www.roseindia.net/jsp/RequestObjectInJSP.shtml

Why don't you call a page on the click of a submit button by creating
an url in the below format (in javascript):- var
url="your_page_name.jsp?value1="+encodeURIComponent(document.getElementById("your_text_field_or_any_other_field_id"));
and then call the page by using your url
document.your_form_name.action=url;
document.your_form_name.submit();
and then use request.getParameter() method either in servlet
or in the jsp that u'v metioned in the url (servlet or the jsp u'll be
calling thorugh u'r jsp).

HTML page as AJAX response?

Can I send an entire HTML page with an AJAX response? If so, how to render that HTML page and what are the pros and cons doing that. The reason why I am asking this question is I found out that if we use response.sendRedirect("index.html") as a reply to an AJAX request in servlet we get the indx.html as AJAX response XML.

Your question doesn't make much sense and I can't quite tell what you're asking - the response to an ajax request will be whatever the server sends back. It could be plain text, XML, HTML, a fragment of an HTML/XML document etc. What you can do with depends on your script. If you're using a library like jQuery, what happens on the client side and what you can do with the response can also depend on how the library interprets the response (Is it a script? It it HTML/XML or JSON?).
if we use response.sendRedirect("index.html") as a reply to ajax request in servlet we get the indx.html as ajax response xml. Can some one pls explain this
An ajax request will behave much like a 'regular' HTTP request. So when you send back a redirect from your server (HTTPServletResponse#sendRedirect), the browser follows the redirect just like it would for any other request. If your ajax request was to a resource that required HTTP BASIC authentication, you'd see a prompt to login, just like you would if you visited the URL directly in a new browser window.

If you want to send HTML as a response, because you want to update divs, tables or other elements, but still want to use the same css or javascript files then it can make sense.
What you can do is to just send it as plain/text back to the javascript function, it can then take that and put it into the inner html element that you want to replace, but, don't do this if you want to replace the entire page, then doing what you want is pointless.
When you make the http request for your ajax call, it has its own response stream, and so when you redirect you are just telling the browser to have that http request go to index.html, as #no.good.at.coding mentioned.

If I get your question, you just want to know whether you could return whole entire HTML with AJAX and know the pro and cons.
The short answer to your question is yes, you could return the entire HTML page with your AJAX response as AJAX is just an http request to the server.
Why would you want to get the entire HTML? That's confusing to me and that is the part that I am not clear about. If you want to want to render the entire HTML (including tags like html, body, etc?), you might as well open it as a new page instead of calling it via Ajax.
If you are saying that you only want to get fragments of HTML to populate a placeholder in your page via AJAX then this is an acceptable practice. jQuery even provides load() function (http://api.jquery.com/load/) to make that task easy for you to use (check the section Loading Page Fragments).
Using this method, you could populate the placeholder using the HTML Fragments that is dictated by your server logic (i.e when the login fails or succeed) including the one via server redirect in your question.

access html components in servlet

so i am using java servlets to response to a request from a jsp page. and i want to change the html components name on that jsp page, like i change the buttons value or hide a label.i am wondering if there is any way to access jsp page's HTML components like button, text, ... in a servlet ?
i want to return the response in the same page that i have got the requests from. can i just simply write button1.name = "john" or text1.value = "ross geller" ?

Short answer is "no", longer answer is:
Firstly, you have to understand that HTTP and servlets is not an event-driven GUI like a desktop client, it's a lifecycle oriented, request/response paradigm. What this means is that the client (browser) makes a request for a page. The server (servlet) then responds with the HTML for that page. Once the servlet has sent the HTML to the browser, there is nothing that can be done on the server to change it, unless the browser makes a new request.
In this very basic paradigm, the lifecycle might look something like this:
A request is made by posting a form (browser) -> request is received (servlet) -> servlet does some processing based on request parameters -> HTML is generated (either by the servlet or by forwarding to a JSP page) -> HTML is sent back to the browser -> browser renders the page from the HTML
This is a very basic example, there are many variations on this based on which framework you use but they all boil down to something along these lines.
So, in your case, you have a page with, presumably, a form on it that has a button. You want to post that form and then return the same page but with some other label on the button. In the lifecycle abovem you would extract the parameters posted on the form from the request (paramters=all fields on the form). Then, in the HTML generation, you would use those request parameter values when building the HTML. I would advice you to search the web for some tutorials on servlet technology and look at some examples you might find and this will become clearer.

Call from one JSP file to another JSP

I need to call from one JSP to another, do some stuff over there..
I am inside the caller jsp, inside his handleReqeust(HttpServletReqeust request)
method I am trying to forward the request to another JSP, to call the other JSP file to his handleRequest(HttpServletReqeust request) off course with the request object
I tried it:
RequestDispatcher dispatcher = request.getRequestDispatcher("/theSecondJspFile.jsp");
if (dispatcher != null)
dispatcher.forward(request, response);
but to make it work I need for it the object response, but I don't have it,
I am sure I missed something basic, but what?
From my question you can see, I don't have solid backround in java, so please correct me, or refer me to good guide if you feel it necessary
Thanks.
-------------------Edit--------------------------------------
I don't need a redirect, I just want to call another JSP file to his handleRequest method
I think it relate to HTML

What I can make out of your question is that you need to redirect to a secondpage.html from firstpage.html with some data. You can use both GET or POST method to send the data.
For the GET method just redirect to secondpage,html?data=value. The data will be available in the HttpRequest parameter in the controller of the secondpage.html where it can be used as required.
For the POST method you would need to post the data (using a form on firstpage.html) to secondpage.html. In the controller of the secondpage.html the data should be available in a similar way as before.

To include another JSP in a jsp :
<jsp:include page="foo.jsp"/>
You can find some reference material here.

I can not be sure, but what I think you are trying to do is to include a jsp page on to your jsp page and use the the objects and other variables declared in the first jsp page in your second.
<%# include file="mypage.jsp" %> should help you do this.
If this is not what you are looking for, please make your question tad bit more clear. some code will help really.

JSPs are supposed to be used to present the final result. JSPs are not supposed to be part of business tasks leading to this result. There you use normal Java classes for, starting with a servlet class. Let the HTTP request (the one which you enter in browser address bar or specify in some HTML link or form) point to the URL of the servlet instead. This way you can write Java code in the servlet the usual way to invoke other Java classes/methods and finally forward the request to a certain JSP file based on the outcome of the result and then just let that JSP present the final result.
To start with servlets, I'd suggest to read our Servlets info page.

I just added empty Iframe, and set his URL when I needed to call him