Two ways to jump JSP

JS//Note: Chinese file names such as "Destination page. JSP" are not recommended here only for tutorial needs

With session, without request of the jump
Responst.sendredirect ("Destination page. jsp");


With session, the jump with request
You need to add parameters to the request: Request.setattribute ("MyVar", "value");
Get parameters in Destination page: String MyVar = Request.getattribute ("myVar") = = null? "": (String) Request.getattribute ("MyVar");
Request.getrequestdispatcher ("Destination page. jsp"). Forward (request, response);