How to Retrieve Parameters from a URL in JSP?

Retrieving Parameters from URL in JSP

Understanding how to retrieve parameters from the URL is crucial in JSP development. Suppose you have a URL like www.somesite.com/Transaction_List.jsp?accountID=5, and you want to extract the "5" value for "accountID."

In JSP, there are several ways to achieve this parameter retrieval. One approach is to utilize the Unified Expression Language (EL) implicit objects, which provide a mechanism for accessing request information directly. Specifically, the param implicit object maps request parameter names to their respective values.

To access the value of "accountID" using EL, you can leverage the following syntax:

${param.accountID}

Alternatively, you can employ JSP Scriptlets (although this practice is less recommended) by inserting the following code into your JSP:

<%
    String accountId = request.getParameter("accountID");
%>

By using these methods, you can effectively retrieve parameters from the URL in your JSP application, enabling dynamic content and functionality.

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