CODEWITHSUNDEEP
springrestspring-mvcspring-boot
Sachin Sharma
Sachin Sharma

Reputation: 1496

How can I inject HttpServletRequest attributes (set in interceptor) in my controller?

I want to add an attribute to all my requests before they reach the controller.

What I am using : 

@Component
public class SessionValidatorInterceptor implements HandlerInterceptor {

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
        throws Exception {
    .... some code ....
    request.setAttribute("validRequest","true");
    .... more code ...
    return true;
}

Now to get this attribute in my rest controller I am doing :

public ResponseEntity<?> someMethod(HttpServletRequest request){
    request.getAttribute("validSession");
    ...

My question is can I do this more elegantly like @RequestParam("validSession") or @PathVariable or something else? Can Spring do this for me ?

Appreciate any help.

Upvotes: 0

Views: 2137

Answers (2)

M. Deinum
M. Deinum

Reputation: 124526

In Spring 4.3 the @RequestAttribute annotation was added just for this. 

public void yourMethod(@RequestAttribute("validRequest") boolean valid)

something like that should do the trick.

If you are on an earlier version of Spring you can implement your own HandlerMethodArgumentResolver to do the same.

Upvotes: 4

Tahir Hussain Mir
Tahir Hussain Mir

Reputation: 2626

Simply use @RequestAttribute Like this 

public ResponseEntity<?> someMethod(HttpServletRequest request,
@RequestAttribute("validSession") String xyz){
}

Since, Mr. Denim didn't post answer, i thought why not me. ^_^

Upvotes: 1

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