将值从.jsp传递到新页面.jsp

Question

I want to ask you , how to pass variable, there's the example:

I have variable String X in pageone.jsp then i open a new tab page to pagetwo.jsp (using JavaScript window.open) , Is it possible to use the variable X (from pageone.jsp) in pagetwo.jsp ? Please Explain, thank you verymuch!

Answer 1

You should store the variable name and value in a cookie.
And fetch the cookie value in the pagetwo.jsp.

OR

You can store the variable value in session.

Answer 2

Just put the data in the URI, probably as a query string. Make sure you encodeURIComponent it to make the data safe for URIs.

It sounds like the data starts out life in Java, so you'll need to include it in the page you send to the client for pageone. This is probably done most simply by setting up a data structure, encoding it using JSON , and then assigning it to a variable in a <script> element.

Answer 3

Set the varaible into the session in Page1.jsp and access the same in Page2.jsp.

In Page1.jsp

session.setAttribute("X", "value");

In Page2.jsp

String x = session.getAttribute("X");

Answer 4

use request.setAttribute("attribute_x", x); to store the value of x in request in page1.jsp and then use request.getAttribute("attribute_x").toString(); in the page2.jsp to retrieve the value.

You can also use session for this purpose ( session.setAttribute() and session.getAttribute() )