Java Servlet retrieve Spring RequestMapping Url

Question

I wrote a Request Interceptor to add some Information to Requests in Test-Environment.

public boolean preHandle(HttpServletRequest request,
                         HttpServletResponse response, Object handler)
        throws Exception {
    ...
}

public void postHandle(
        HttpServletRequest request, HttpServletResponse response,
        Object handler, ModelAndView modelAndView)
        throws Exception {
        ...
}

Currently I'm retrieving the URLs like this:

String url = request.getServletPath();

For a Controller like this:

@RequestMapping(value = "/{id}",
        method = RequestMethod.GET)
public ResponseEntity<?> getByID(@PathVariable long ID) {
    ...
}

And for a Request like /1/ url would be /1/

Is there any way to get the Request-Mapping-Value ==> /{id}

Thanks in advance

id is a path variable so if you request /1 in url would be /1 and 1 ->id . change "/{id}" to "/{id}*" for accepting /1, /1/ — DHARMENDRA SINGH
– DHARMENDRA SINGH, Commented Jan 8, 2019 at 9:55
inside the interceptor i want to retriev /{id}/ as String i dont care about the id itself (1) — Barney Stinson
– Barney Stinson, Commented Jan 8, 2019 at 10:04
Inside preHandle use request.getRequestURL().toString() or equest.getQueryString() to retriev /{id}/ as string — DHARMENDRA SINGH
– DHARMENDRA SINGH, Commented Jan 8, 2019 at 10:16
getRequestURL returns the full link localhost:8080/1, querystring is null but i want /{id} — Barney Stinson
– Barney Stinson, Commented Jan 8, 2019 at 10:56
you can't achieve this because /{id} you have define in controller for path variable. Interceptor intercept what ever you pass in url like you pass /1 so how it will map with {id}. — DHARMENDRA SINGH
– DHARMENDRA SINGH, Commented Jan 8, 2019 at 11:45

Ken Chan · Accepted Answer · 2019-01-08 17:02:42Z

1

@RequestMapping and its composed annotation methods (i.e. @GetMapping , @PostMapping etc.) are handled by HandlerMethod. So cast the handler object to it and you can access the @RequestMapping information that you want:

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

    if (handler instanceof HandlerMethod) {
        HandlerMethod hm = (HandlerMethod) handler;
        RequestMapping mapping = hm.getMethodAnnotation(RequestMapping.class);
        if (mapping != null) {
            for(String val : mapping.value()) {

                //***This is the mapping value of @RequestMapping***
                System.out.println(val);
            }
        } 
    }
}

answered Jan 8, 2019 at 17:02

Ken Chan

91.4k26 gold badges157 silver badges189 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Java Servlet retrieve Spring RequestMapping Url

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related