RequestParam value in spring MVC to be case insensitive

Question

Am sending data from JSP to controller using query string.

My controller is annotation driven.

The value of the the request parameter should be case-insensitive.

The method which i use for welcome page is

public String welcome(@RequestParam("orgID") String orgID, ModelMap model)

The request parameter "orgID" should be case insensitive. How to do this ?.

I should be able to give the query-string as "orgid" or "orgId". The parameter should be completely case-insensitive. Looking for your help friends.

Thanks in Advance :-)

Answer 1

It might be nice for Spring to support this, but I can also understand why they wouldn't since it could result in a weakening of an interface contract between a supplier and consumer. In the meantime, here's a fairly straightforward way to take the first value using the parameter name regardless of its case.

    String myVal = null;
    for (String pname : request.getParameterMap().keySet() ) {
        if ( pname != null && pname.toLowerCase().equals("your_lc_pname") ) {
            for (String v : request.getParameterValues(pname) ) {
                // do something with your value(s)
            }
        }
    }

Answer 2

Another approach would be to have two parameters "orgId" and "orgid" and have the optional.

public String welcome(@RequestParam(value="orgID", required = false) String org_ID, @RequestParam(value="orgid", required=false, String orgid, ModelMap model) {
final String orgId = orgid == null ? org_ID : orgid;
...
}

But if you have control over the parameters I would strongly prefer to just have one consistent way, say org-id and follow it both in the client and the server side.