Question

我有一个Spring Boot应用程序，其REST端点定义如下

/usermanagement/v1/access/ldap
/usermanagement/v1/access/db

我创建了一个Spring Interceptor，用以下模式拦截所有传入的请求

@Override
public void addInterceptors(InterceptorRegistry registry) {
   registry.addInterceptor(new RequestInterceptor()).addPathPatterns("/usermanagement/v1/**");
}

RequestInterceptor

@Component
public class RequestInterceptor extends HandlerInterceptorAdapter {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
        throws Exception {
        return true;
    }

    @Override
    public void postHandle(
        HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView)
        throws Exception {
        System.out.println("This is Post Handling the request");
    }
}

此拦截器仅在客户端访问完整端点时才有效，即

/ usermanagement / V1 /访问/ LDAP

如果访问了部分端点，

/ usermanagement / V1 /接入

拦截器未被调用，404被返回给客户端。

有没有办法改变这种行为？我这样做的原因是因为我不希望公开特定的端点，而是公共端点，并对服务进行内部调用，并通过公共端点返回结果。

Answer 1

您使用的是错误的方法。尝试使用afterCompletion代替postHandle

new HandlerInterceptor() {

        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //This is called before handeling any request
        }

        @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        //This is called after successfully handeling a request. It will not be called in case of an exception
        }

        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        //This will always be called after a request, even in case of an exception
        }
}

请求未定义的端点/usermanagement/v1/access Spring将抛出异常。因此，它永远不会进入postHandle。

Spring拦截器不适用于部分REST端点

1 个答案: