Problems after @PathVariable parameter value containing the '/' character

[howsun]

Hi,all:
I have a use case. Spring MVC REST Url receive content using the GET method code is as follows:

@RequestMapping("/q/{key}")
public String query(@PathVariable() String key, Model model){
    //todo
}

But the front end of such a request :"/q/SiGeC%2FSi%E5%BC%82%E8%B4%A8%E7%BB%93". '%2F' decoded character '/'. The controller can not match mapping request. How should I do?

by Howsun.
Thanks!

[howsun]

Annotations of @ PathVariable may not be able to solve this problem.Last use the workaround is resolved.Code is as follows:

@RequestMapping("/q/**")