Use JavaScript Variable in Java [duplicate]

Question

This question already has answers here:

Use javascript variables in JSP code [duplicate] (1 answer)

using javascript variable inside the java function (4 answers)

How do I pass JavaScript values to Scriptlet in JSP? (9 answers)

Closed 8 years ago.

I want to use this below variable reqID into my java code, and I want to submit this prompt with this value. And that value i want to use in update.

function approveReset(){
 var reqID = prompt("Enter Request ID : ", "Request ID");
 <%
 try{
 -- Here i want to call my variable reqID--
 PreparedStatement ps_approve_req = conn.prepareStatement("<Some update statement>");
 } 
 catch (Exception e) {
 System.out.println(e);
 System.out.println("Some issue happened hence rolling back.");
 conn.rollback();
 }
 %>
}

• QuakeCore: What do you mean when you say: "Call my variable"?
• Fady Saad: You must sent request to the server with the value in the QueryString or with request body? but how server-side can call client-side?
• seenukarthi: The scriptlet will be executed on the server-side when the jsp is loaded the way you are trying to execute the scriptlet inside a javascript function won't work the way you intended.
• Satender: I will be calling this function by clicking on a link, so please help me how i can do this.
• Satender: My requirement is if i click on link it will prompt for request ID and with that request ID i want to update the table in DB.