java - @ControllerAdvice 不处理异常

Question

我已经浏览了所有相关的帖子，但我的@ControllerAdvice似乎没有处理从 Controller 类抛出的自定义异常。但是@Controller类中的@ExceptionHandler确实处理了异常。我不知道出了什么错误。

web.xml:

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
      http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
      version="2.5">    
<display-name>Archetype Created Web Application</display-name>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>

<listener>
    <listener-class>
        org.springframework.web.context.ContextLoaderListener
    </listener-class>
</listener>

<servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>
        org.springframework.web.servlet.DispatcherServlet
    </servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

调度程序-servlet.xml:

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc" 
xsi:schemaLocation="
    http://www.springframework.org/schema/beans     
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">


<context:component-scan base-package="com.test.controller,com.test.exception"/>
 <mvc:annotation-driven />

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix">
        <value>/WEB-INF/views/</value>
    </property>
    <property name="suffix">
        <value>.jsp</value>
    </property>
</bean> 

@ControllerAdvice 类:

package com.test.controller;
import com.test.exception.EmployeeException;

@EnableWebMvc
@ControllerAdvice         
public class EmployeeExceptionController {

@ExceptionHandler(EmployeeException.class)
public ModelAndView employeeNotFound(EmployeeException ex){

    String msg="employee with the "+ex.getId()+" not found";
    ModelAndView mv=new ModelAndView("helloWorld");
    mv.addObject("message",msg);
    mv.addObject("name","boss");
    return mv;
   }

}

@ControllerAdvice 与 Controller 位于同一包中。

Answer 1

您需要对 @ControllerAdvice 异常实现“Ordered”，并使用 Ordered 接口(interface)的 getOrder 方法返回订单。

顺序越低，优先级越高。这样，您可以首先捕获响应实体异常并在全局异常处理程序捕获它们之前对其进行处理。