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How do I forward a request to another page?

Jim Brown

How do I forward a request to another page?

JSP forward action tag is used for forwarding a request to the another resource (It can be a JSP, static page such as html or Servlet). Request can be forwarded with or without parameter. In this tutorial we will see examples of action tag.

How do I forward a JSP request to a servlet?

Passing Data Between a JSP Page and a Servlet

  1. You can append a query string to the URL when you obtain the request dispatcher, using “?” syntax with name = value pairs. Here is an example: RequestDispatcher rd = sc.
  2. You can use the setAttribute() method of the HTTP request object. Here is an example: request.

How can we use JSP variable in another JSP?

5 Answers

  1. Store it in the session. // Memorise any passed in user.
  2. Store it as a hidden field in the form.
  3. Store it in a cookie.
  4. Persist it on the client side in sessionStorage.
  5. Not really another option but a mechanism – pass it in the URL:

How do I forward a Java request?

Example of using getRequestDispatcher method

  1. RequestDispatcher rd=request.getRequestDispatcher(“servlet2”);
  2. //servlet2 is the url-pattern of the second servlet.
  3. rd.forward(request, response);//method may be include or forward.

Why use RequestDispatcher to forward a request to another resource instead of sendRedirect?

A RequestDispatcher forward() is used to forward the same request to another resource whereas ServletResponse sendRedirect() is a two step process. In sendRedirect(), web application returns the response to client with status code 302 (redirect) with URL to send the request.

What is difference between redirect and forward method?

The Forward method forwards a request from one servlet to another resource in a web application and this resource can be another servlet, JSP page, or HTML file. The Redirect method, on the other hand, redirects the request to a different application.

Which object is used to forward the request processing from one servlet to another?

javax.servlet Interface RequestDispatcher

Method Summary
void forward(ServletRequest request, ServletResponse response) Forwards a request from a servlet to another resource (servlet, JSP file, or HTML file) on the server.

How do I share data between two jsp pages?

There are several ways to pass data from one webpage to another:

  1. Put a form on Login. jsp and let it post to Details.
  2. Redirect to Details. jsp?
  3. Put the username in a cookie. The cookie will be submitted to Details.
  4. Put the username in the session.

How can I pass values from one jsp page to another jsp without submit button?

You could do one thing either use sessions or use hidden fields that has the submit button. You could use javascript/jquery to pass the values from the first form to the hidden fields of the second form. Then you could submit the form. Or else the easiest you could do is use sessions.

What is the difference between forwarding a request and redirecting a request?

The difference between forward and redirect is that the forward command in web-based systems and applications is used to process the request of the client from one JSP or servlet to another JSP or servlet, the process under the forward command remains within the same server, on the other hand, the redirect command in …

How to forward a page in JSP without parameters?

1) Forwarding along with parameters. 2) Forwarding without parameters. Relative_URL_of_Page: If page is in the same directory where the main page resides then use page name itself as I did in the below examples. In this example we are having two JSP pages – index.jsp and display.jsp.

Which is an example of a forward tag in JSP?

In this tutorial we will see examples of <jsp:forward> action tag. 1) Forwarding along with parameters. 2) Forwarding without parameters. Relative_URL_of_Page: If page is in the same directory where the main page resides then use page name itself as I did in the below examples.

What’s the difference between forward and redirect in JSP?

c) In forward, control is forwarded by container and browser is not involved where as in redirect, browser takes the responsibility. To validate this , in case of forward, browser URL is not changed but gets changed while redirect. 18.6.1 – Write a program that explains the JSP request forward concept.

When to use relative URL of page in JSP?

Relative_URL_of_Page: If page is in the same directory where the main page resides then use page name itself as I did in the below examples. In this example we are having two JSP pages – index.jsp and display.jsp. We have used <jsp:forward> action tag in index.jsp for forwarding the request to display.jsp.