How to get Path Variables inside a Spring interceptor.[This post assumes that you have an Interceptor registered and set up using XML or Java config]

SomeInterceptor.java

public class SomeInterceptor extends HandlerInterceptorAdapter{
    @Override
  	public boolean preHandle(final HttpServletRequest request,final HttpServletResponse response,final Object handler)
  		throws Exception
  		{
      	      /*Assume the URI is user/{userId}/post/{postId} and our interceptor is registered for this URI.
      	       * This map would then be a map of two elements,with keys 'userId' and 'postId'
      	       */
  	  	 final Map<String, String> pathVariables = (Map<String, String>) request
  	  		                                                                .getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
            
               //You'll have to convert the String to Long or Integer or any other type manually. For instance..
               //final Integer userId = Integer.valueOf(pathVariables.get("userId"));
               //final Long postId = Long.valueOf(pathVariables.get("postId"));
            
  		}
}

This was helpful. Thank you.

Is it possible to get pathvariable with data types?

Get the Method from the handler, then use reflection to find the annotations and types of the matching parameter.

AnnotatedType[] at = method.getAnnotatedParameterTypes();
// ... code to find the param you want ...  assume n has the target index
// or you can loop through AnnotateType list matching the 
String paramName = at[n].getAnnotation(PathVariable.class).value();
Type type = at[n].getType();

Helpful - thanks!

Awesome!

thanks :)

How can i get these parameters in order, as this is unordered map so it will not provide me ordered keys according to the url?
for eg: i have "http://localhost:8080/url/123/234/xyz/123" which should map to "http://localhost:8080/url/{id}/{deptId}/{code}/{empId}".
Now how can i know that first 123 maps to id or empId ???