Spring boot: Request method 'PUT' not supported

Question

I am getting a Request method \'PUT\' not supported error on hitting a PUT method on a restful API to upload a file.

Following is the

Answer 1

Chek you request mapping

if you declare request mapping in class level @RequestMapping("/api/users") then if you declare mapping in method level @RequestMapping("/api/users/{id}") this error could occur.

correct

@RequestMapping("/api/users")
 public class {.....

   @RequestMapping(value = "/{id}", method = RequestMethod.PUT)
   update(....)

} 

incorrect , might cause PUT not supported error

@RequestMapping("/api/users")
 public class {.....

   @RequestMapping(value = "/api/users/{id}", method = RequestMethod.PUT)
   update(....)

} 

Answer 2

To enable the PUT verb you have to add an interceptor that allows that method in the response header.

Something like that:

public class SasAllowOriginInterceptor extends HandlerInterceptorAdapter {

  @Override
  public boolean preHandle(HttpServletRequest request,
                           HttpServletResponse response, Object handler)
    throws Exception {
    response.setHeader("Access-Control-Allow-Origin", "*");
    response.setHeader("Access-Control-Allow-Methods",
                       "GET, POST, PUT, DELETE, OPTIONS");
    return true;
  }
}

I don't know how to add an interceptor using spring boot though, and I would be intersted in knowing it :)

Answer 3

Simply put: your @RequestMapping doesn't match the request. The regex probably needs some work.

Answer 4

This error happened with me too, I just restarted the server and the error disappeared, the RequestMapping that you've put match the request.

Answer 5

For adding Interceptor what you should do is implementing WebMvcConfigurer and overriding addInterceptors method.

@Configuration
public class WebMvcConfigAdapter implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new yourInterceptor());
    }
}