RESTController

就是RESTful api吧,大概…
大概比较核心的就是 @RestController ,显然是继承的 Controller

@RestController
@RequestMapping("/person")
public class PersonController {
    @RequestMapping(method = RequestMethod.GET)
    public List<Person> getAllPerson() {
        List<Person> l = new ArrayList<>();
        l.add(new Person(1, "Chester"));
        return l;
    }
    @RequestMapping(value = "/{id:[\\d]+}", method = RequestMethod.GET)
    public Person getPerson(
            @PathVariable(value = "id") int id
    )
    {
        return new Person(id, "Chester");
    }
}

它的作用是不用你写 ResponseBody , 可以直接返回Java对象