How Do I Retrieve Parameters from URLs in JSP?

Retrieving Parameters from URLs in JSP

JSP provides convenient mechanisms for accessing parameters passed through the URL using implicit objects.

The request implicit object provides access to request-related information, including parameters. Within this object, the param implicit object maps request parameter names to their corresponding values.

To retrieve a parameter by its name, you can use the following syntax:

Using Expression Language (EL):

${param.parameterName}

Using JSP Scriptlets:

String parameterValue = request.getParameter("parameterName");

For example, to retrieve the accountID parameter from the URL www.somesite.com/Transaction_List.jsp?accountID=5, you could use the following code:

EL:

${param.accountID}

Scriptlets:

String accountId = request.getParameter("accountID");

This will result in the value 5 being retrieved and assigned to the variable accountId.

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