Spring mvc3中的@ControlAdvice

在spring 3 mvc中，对于异常的处理，可以使用@ExceptionHandler，例如：

import org.springframework.web.bind.annotation.ExceptionHandler;
 
//..
@ExceptionHandler(IOException.class)
public String exception(Exception e) {
         
    //..
    return "error";
}

  用@ExceptionHandler的一个问题是，每个controller中都要这样用，重复了，如果多个controler中都要抛出同样的异常，则麻烦，因此可以使用全局异常@ControlAdvice

@ControllerAdvice
public class ExceptionControllerAdvice {
 
    @ExceptionHandler(Exception.class)
    public ModelAndView exception(Exception e) {
         
        ModelAndView mav = new ModelAndView("exception");
        mav.addObject("name", e.getClass().getSimpleName());
        mav.addObject("message", e.getMessage());
 
        return mav;
    }

  这里定义了全局的异常，那么在controller中；

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.servlet.ModelAndView;
 
@ControllerAdvice
public class ExceptionControllerAdvice {
 
    @ExceptionHandler(Exception.class)
    public ModelAndView exception(Exception e) {
         
        ModelAndView mav = new ModelAndView("exception");
        mav.addObject("name", e.getClass().getSimpleName());
        mav.addObject("message", e.getMessage());
 
        return mav;
    }

 

评论

1 楼 mensyli 2016-11-21  

import org.springframework.web.bind.annotation.ControllerAdvice;  
import org.springframework.web.bind.annotation.ExceptionHandler;  
import org.springframework.web.servlet.ModelAndView;  
   
@ControllerAdvice  
public class ExceptionControllerAdvice {  
   
    @ExceptionHandler(Exception.class)  
    public ModelAndView exception(Exception e) {  
           
        ModelAndView mav = new ModelAndView("exception");  
        mav.addObject("name", e.getClass().getSimpleName());  
        mav.addObject("message", e.getMessage());  
   
        return mav;  
    }