如何在springboot中向一个特定的url添加拦截器？

Question

我有一个 UserController 类如下：

@RestController
@RequestMapping("/user")
public class UserController {
    @Resource
    UserService userService;

    @PostMapping("/create")
    public Map<String, Object> createAccount(User user) {
        return userService.createAccount(user);
    }

    @PostMapping("/login")
    public Map<String, Object> accountLogin(User user) {
        return userService.accountLogin(user);
    }

    @GetMapping("/activate")
    public Map<String, Object> activateAccount(String confirmationCode) {
        return userService.activateAccount(confirmationCode);
    }

    @PostMapping("/roleChange")
    public Map<String, Object> setUserRole(String uuid, String email, String roleId){
        return userService.setUserRole(uuid, email, roleId);
    }
}

现在我只想向/user/roleChange添加一个拦截器。 我知道您可以使用.excludePathPatterns()排除所有其他路径，但我只是好奇是否有办法为拦截器指定一个路径。 谢谢！

Answer 1

下面是拦截器的示例代码

@Configuration
public class AppConfig implements WebMvcConfigurer {

    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new CustomInterceptor()).addPathPatterns("/user");
    }
}

public class CustomInterceptor implements HandlerInterceptor {

    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("Hello..");
        return true;
    }
}

在此我为拦截器注册了“/user”。

registry.addInterceptor(new CustomInterceptor()).addPathPatterns("/user");