[FIXED] GetMapping returning error 405 in spring boot

Issue

I have a system that uses Spring Boot in the server side. I'm getting an error that I can't see what is happening here.

That's my controller with the following end point:

@GetMapping("/api/getAge")
public int getAge (@RequestParam("person") Person p) {
    return this.computeAge(p);
}

The method compute age returns (obviously) the person's age. The thing is: when I use postman to this route, the method runs but I get a http error 405.

Solution

You're missing the @ResponseBody annotation:

@GetMapping("/api/getAge")
@ResponseBody
public int getAge (@RequestParam("person") Person p) {
    return this.computeAge(p);
}

Answered By - André Pacheco
Answer Checked By - Cary Denson (JavaFixing Admin)