java - RequestMapping 类级别和方法级别之间的继承

Question

鉴于下面的@Controller，即使我向 webApp 发送 Get 请求， Controller 也会运行 homePage 方法。

@RestController
@RequestMapping(method = RequestMethod.POST)
public class MyController {

        @GetMapping("/hello")
        public String homePage() {
            return "Hello, It is my first application";
        }
    }

怎么会发生这种事？通常，我会从类(class)层面限制这一点。

Answer 1

您的方法 @GetMapping("/hello")选择最具体的并启用带有 /hello 路径的 GET 请求

This annotation can be used both at the class and at the method level. In most cases, at the method level applications will prefer to use one of the HTTP method specific variants @GetMapping