使用HandlerExceptionResolver处理Spring MVC异常

Question

我目前正在尝试HandlerExceptionResolver在Spring MVC项目中使用异常处理.

我想通过resolveException404的via 来处理正常的异常handleNoSuchRequestHandlingMethod.

根据请求类型JSON或text/html,应该适当地返回异常响应.

resolveException 现在有效.

但handleNoSuchRequestHandlingMethod让我头疼.从未打过电话!

根据文档,该方法应该调用404错误

http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/web/servlet/mvc/support/DefaultHandlerExceptionResolver.html

我究竟做错了什么...

这就是我到目前为止所拥有的.

public class JsonExceptionResolver implements HandlerExceptionResolver {

  protected final Log logger = LogFactory.getLog(getClass());

  public ModelAndView resolveException(HttpServletRequest request,
    if (exception instanceof NoSuchRequestHandlingMethodException) {
              return handleNoSuchRequestHandlingMethod((NoSuchRequestHandlingMethodException)             exception, request, response, handler);
    }
    ...                
  }

  public ModelAndView handleNoSuchRequestHandlingMethod(NoSuchRequestHandlingMethodException ex,
      HttpServletRequest request,
      HttpServletResponse response,
      Object handler){

    logger.info("Handle my exception!!!");

    ModelAndView mav = new ModelAndView();
    boolean isJSON = request.getHeader("Accept").equals("application/json");

    if(isJSON){
    ...

    }else{
    ..
    }

    return mav;
  }

}

使用DefaultHandlerExceptionResolver编辑:

public class MyExceptionResolver extends  DefaultHandlerExceptionResolver {

  protected final Log logger = LogFactory.getLog(getClass());

  @Override
  protected ModelAndView doResolveException(HttpServletRequest request,  HttpServletResponse response, Object handler, Exception exception) {
    logger.warn("An Exception has occured in the application", exception);


    logger.info("exception thrown " + exception.getMessage() );
    if (exception instanceof NoSuchRequestHandlingMethodException) {
      return handleNoSuchRequestHandlingMethod((NoSuchRequestHandlingMethodException) exception, request, response, handler);
    }

    ...
    return mav;
  }

  public ModelAndView handleNoSuchRequestHandlingMethod(NoSuchRequestHandlingMethodException ex,
      HttpServletRequest request,
      HttpServletResponse response,
      Object handler){

    logger.info("Handle my exception!!!");

    ModelAndView mav = new ModelAndView();
    boolean isJSON = request.getHeader("Accept").equals("application/json");

    if(isJSON){

      ...
    }else{
      ...
    }

    return mav;
  }  
}

上面的代码仍无效.

还有其他想法吗？

Answer 1

根据 Spring 的 Juergen Hoeller 的说法，这是不可能的，HandlerExceptionResolver因为它只适用于子映射，例如

您有一个控制器映射到/account/**并从一个不存在映射的帐户访问一个方法，就像/acount/notExists它应该工作的那样。

我将为此功能开具 JIRA改进票

编辑：

关于此问题的 JIRA 票证

https://jira.springsource.org/browse/SPR-8837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=72648#comment-72648