@ControllerAdvice异常处理程序方法不被调用 | ControllerAdvice异常处理程序方法

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问题描述

我正在使用Spring MVC中的异常处理示例演示应用程序。我正在尝试使用@ControllerAdvice执行异常处理

我遵循此url

但是我得到以下异常

  org.springframework.web.util.NestedServletException：Request处理失败;嵌套异常是com.test.core.ApplicationException 
 org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:894）
 org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet。 java：778）
 javax.servlet.http.HttpServlet.service（HttpServlet.java:621）
 javax.servlet.http.HttpServlet.service（HttpServlet.java:722）
 
根本原因
 
 com.test.core.ApplicationException 
 com.test.controller.ApplicationExceptionController.helloException（ApplicationExceptionController.java:19）
 sun.reflect.NativeMethodAccessorImpl.invoke0 （Native Method）
 sun.reflect.NativeMethodAccessorImpl.invoke（Unknown Source）
 sun.reflect.DelegatingMethodAccessorImpl.invoke（Unknown Source）
 java.lang.reflect.Method.invoke（Unknown Source ）
 org.springframework.web.method.support.InvocableHandlerMethod.invoke（InvocableHandlerMethod.java:214）
 org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest（Invocabl eHandlerMethod.java:132）
 org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle（ServletInvocableHandlerMethod.java:100）
 org.springframework.web.servlet.mvc.method。 annotation.RequestMappingHandlerAdapter.invokeHandlerMethod（RequestMappingHandlerAdapter.java:604）
 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal（RequestMappingHandlerAdapter.java:565）
 org.springframework.web。 servlet.mvc.method.AbstractHandlerMethodAdapter.handle（AbstractHandlerMethodAdapter.java:80）
 org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:923）
 org.springframework.web.servlet。 DispatcherServlet.doService（DispatcherServlet.java:852）
 org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:882）
 org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet。 java：778）
 javax.servlet.http.HttpServlet.service（HttpS ervlet.java:621）
 javax.servlet.http.HttpServlet.service（HttpServlet.java:722）

我通过这个链接，但仍然坚持同样的问题
请帮助我得到解决方案。我没有得到这个例外的实际原因。

解决方案

您的异常处理程序中缺少 @EnableWebMvc 注释。您的异常处理程序应该是这样的。

  @EnableWebMvc 
 @ControllerAdvice 
 public class GlobalExceptionHandler {
 
 @ExceptionHandler（{ApplicationException.class}）
 public void notFount（）{
 System.out.println（---------- CaughtApplicationException --- --------）; 
} 
 
 @ExceptionHandler（{Exception.class}）
 public void notFountGlobal（）{
 System.out.println（------- --- ----------- CaughtApplicationException）; 
} 
 
}

还需要告诉异常处理程序方法你想要捕获哪个方法在哪个方法。最后你可以指定一个可以捕获所有其他异常传递它的方法Exception.class。
您为我发布的代码段。希望能解决您的问题。

I am working on sample demo application for Exception Handling in Spring MVC.I am trying Exception Handling With @ControllerAdvice

I followed steps as describe in this link.

But when i run my application i get the following error

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is com.test.core.ApplicationException

For more details following are the classes I am working on

ApplicationException.java

public class ApplicationException extends RuntimeException{


/**
 *
 */
private static final long serialVersionUID = -9061684361606685158L;
private ErrorStatus errorStatus;
private int msgNumber;
private Object []args;

public ApplicationException(){}

public ApplicationException(ErrorStatus errorStatus, int msgNumber,
        Object[] args) {
    this.errorStatus = errorStatus;
    this.msgNumber = msgNumber;
    this.args = args;
  }
    //getter setters
}

Controller class

ApplicationExceptionController.java

 @Controller
@RequestMapping("/exception")
public class ApplicationExceptionController {

@RequestMapping(value="/error",method=RequestMethod.GET)
@ResponseBody
public void helloException()
{
    throw new ApplicationException(ErrorStatus.NotFound,1,new Object[]{"Website"});

  //here ErrorStatus is a enum class
}
}

And here is the GlobalExceptionHandler class

GlobalExceptionHandler.java

@ControllerAdvice
public class GlobalExceptionHandler {

@ExceptionHandler
public void notFount(){
    System.out.println("----------CaughtApplicationException-----------");
}
}

dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
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
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">


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

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

 <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    <property name="messageConverters">
     <list> <ref bean="jsonConverter"/></list>
    </property>
</bean>

<bean id="jsonConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
     <property name="supportedMediaTypes" value="application/json" />
</bean>

I run above application with http://localhost:8080/SpringExceptionHandling/exception/error this url

But I get the following Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is com.test.core.ApplicationException
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

root cause

com.test.core.ApplicationException
com.test.controller.ApplicationExceptionController.helloException(ApplicationExceptionController.java:19)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:214)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:100)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:604)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:565)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

I go through @ControllerAdvice exception handler method are not get called this link but still stuck with the same problemPlease help me to get the solution.I am not getting the actual cause for this exception.

解决方案

You are missing @EnableWebMvc annotation in your Exception handler. Your Exception handler should be like this.

@EnableWebMvc
@ControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler({ApplicationException.class})
    public void notFount(){
        System.out.println("----------CaughtApplicationException-----------");
    }

    @ExceptionHandler({Exception.class})
    public void notFountGlobal(){
        System.out.println("----------CaughtApplicationException-----------");
    }

}

Also you need to tell exception handler method which exception you want to catch in which method. At last you can specify a method which can caught all other exception passing it Exception.class.The code snippet you post work for me. Hopefully it will resolve your problem.

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