Question

I have a spring (3.1) controller action method like this:

@RequestMapping(value="/{id}")
public String myAction(@PathVariable("id") long someId) { ... }

I want to introduce a boolean:

public String myAction(@PathVariable("id") long someId, boolean doBranch) { ... }

However, I want the boolean to be set based on which URL the method is accessed. In other words, I want

/foo/123 => myAction(123,false)
/debug/foo/123 => myAction(123,true)

I know I can add multiple urls to the RequestMapping annotation, but I haven’t seen a way to have the mapping itself impact a parameter, short of passing in the parameter or course (/foo/123?doBranch=true").

Can I somehow easily extend Spring to do that? Or is there something already in there that would do that?

Answer 1

I know this isn’t the most elegant way but:

@RequestMapping("/foo/{id}")
public String myActionA(@PathVariable("id") long someId) {
   return myAction(someId, true);
}
@RequestMapping("/debug/foo/{id}")
public String myActionB(@PathVariable("id") long someId) {
   return myAction(someId, false);
}

public String myAction(@PathVariable("id") long someId, boolean doBranch) { ... }

Simply map the URLs to 2 different methods that call a third method with either true or false.