Example : How to pass value from java script to jsp in same page [passing value from js to jsp].
<%--
Document : PassValuefromJavaScripttoJSP1
Created on : 3 Jun, 2019, 10:31:14 AM
Author : Codershelpline
--%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Pass Value from Java Script to JSP</title>
<script>
function getdata()
{
var m="Hello India";
window.location.replace("chartostring.jsp?store="+m);
}
</script>
</head>
<body>
<input type="button" onclick="getdata();" value="Click Me">
<%
String message=request.getParameter("store");
//out.println(message);
%>
</body>
</html>
NB :'chartostring.jsp' is the saved name of this page and 'store' is a variable where js value is
stored and used in JSP.Example : How to pass value from java script to jsp in another page [passing value from js to jsp].
<%--
Document : PassValuefromJavaScripttoJSP
Created on : 3 Jun, 2019, 10:31:14 AM
Author : Codershelpline
--%>
first.jsp (Source Page)
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Pass Value from Java Script to JSP2</title>
<script>
var msg="Hello World"
window.location.href="second.jsp?value=" + msg;
</script>
</head>
<body></body>
</html>
NB : Run this page first.
---------------------------------------------------------------
<%--
Document : PassValuefromJavaScripttoJSP
Created on : 3 Jun, 2019, 10:31:14 AM
Author : Codershelpline
--%>
second.jsp (Destination Page)
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>show</title>
</head>
<body>
<%
String message = request.getParameter("value");
//out.println("Message is: "+message);
%>
</body>
</html>
NB : 'value' is the variable to store js value and used in jsp. 
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