SpringMVC源码-异常处理机制

定义一个异常处理类TestErrorController:

@Controller
public class TestErrorController {
   
   
  
    @RequestMapping("/exception")
    public ModelAndView exception(ModelAndView view) throws ClassNotFoundException {
   
   
        view.setViewName("index");
        throw new ClassNotFoundException("class not found");
    }

    @RequestMapping("/nullpointer")
    public ModelAndView nullpointer(ModelAndView view) {
   
   
        view.setViewName("index");
        String str = null;
        str.length();
        return view