Get the URL from mJSP page

Question

I would grab the URL of the current JSP web page with its settings example: index.jsp? param = 12

Have you any idea? Thank you

Answer 1

You can get it from the HttpServletRequest object which is in EL available by ${pageContext.request}. The part before the ? is available by getRequestURL() method and the part after the ? is available by getQueryString() method. So, in a nutshell:

Request URL: ${pageContext.request.requestURL}
Query string: ${pageContext.request.queryString}
Full URL: ${pageContext.request.requestURL}?${pageContext.request.queryString}

If you want to do this using normal Java code, you'd better use a Servlet for this.

String requestURL = request.getRequestURL().toString();
String queryString = request.getQueryString();
if (queryString != null) requestURL += "?" + queryString;
// ...