Spring 3.1如何将所有异常发送到一个页面？

Question

我有以下内容

web.xml中

<error-page>
    <error-code>500</error-code>
    <location>/WEB-INF/views/errorPages/500.jsp</location>
</error-page>

<error-page>
    <exception-type>java.lang.Exception</exception-type>
    <location>/WEB-INF/views/errorPages/error.jsp</location>
</error-page>

<error-page>
    <exception-type>java.lang.Throwable</exception-type>
    <location>/WEB-INF/views/errorPages/500.jsp</location>
</error-page>

弹簧的context.xml

<bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
    <property name="exceptionMappings">
    <props>
        <prop key="java.lang.Exception">error</prop>
    </props>
    </property>
</bean>

<bean id="exceptionResolver"
    class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">

    <property name="exceptionMappings">
        <props>
            <prop key="com.company.server.exception.GenericException">GenericExceptionPage</prop>
            <prop key="java.lang.Exception">error</prop>
        </props>
    </property>

    <property name="defaultErrorView" value="defaulterror"></property>
</bean>

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

GenericException.java

public class GenericException extends RuntimeException
{
  private static final long serialVersionUID = 1L;

  private String customMsg;
  public String message;

  public String getCustomMsg()
  {
    return customMsg;
  }

  public void setCustomMsg(String customMsg)
  {
    this.customMsg = customMsg;
  }

  public GenericException(String customMsg)
  {
    this.customMsg = customMsg;
  }

  @Override
  public String getMessage()
  {
    return message;
  }

}

myController.java

@Controller
@RequestMapping(value = "/admin/store")
public class AdminController
{


 //bunch of restful drivin requestMappings


}

问题:如何获取任何和所有内部服务器错误和异常以向单个页面显示异常/错误消息？

Answer 1

我会考虑@ExceptionHandler在我的控制器中的方法上使用注释.这个注释标记了一个方法,当一个Exception气泡向上通过控制器时,它将被Spring调用.

这样,当你的一个@RequestMapping方法抛出一个Exception,然后将调用此方法并返回您想要的任何错误消息.

public class BaseController {
    @ExceptionHandler(Throwable.class)
    public String handleException(Throwable t) {
        return "redirect:/errorPages/500.jsp";
    }

    @ExceptionHandler(Exception.class)
    public String handleException(Throwable t) {
        return "redirect:/errorPages/error.jsp";
    }
}

@Controller
@RequestMapping(value = "/admin/store")
public class AdminController extends BaseController
{
    @RequestMapping(...)
    //Some method

    @RequestMapping(...)
    //Another method
}