Analyze the example of passing values between JSP pages and jsp

Analyze the example of passing values between JSP pages and jsp

This document analyzes the issue of passing values between JSP pages. We will share this with you for your reference. The details are as follows:

The simplest value is the href value in the <a> label,

Write in a. jsp:

<A href = "B. jsp? Name1 = value "> </a>

Then, receive the following in B. jsp:

<%   String name2 = new String(request.getParameter("name1").getBytes("ISO-8859-1"),"GBK");   request.setAttribute("name3",name2);%><input id="id1" value="${name3}"/>

This method is relatively simple, but I also found some problems. For example, it cannot be dynamically loaded. The value is attached when the page is loaded. Let's take an example,

I have a <select> label, which dynamically cascade some provinces and cities, so I want to get the values in <select>, and I cannot use href for them, because I chose the value in <select> to do this after page loading,

<script>  var href = "b.jsp?sd=";  var getV = function(){    var add = $("#ad").val();    href = href + add;  }  var h1 = function(){  　　window.location = href;　　}</script><select id="ad" onChange="getV()"></select><a id="h" href="#" onClick="hl()" ></a>

I hope this article will help you with JSP program design.

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