Springmvc异常映射2种实现方法

请求出现 想要跳转到错误页面

就需要对springmvc进行配置

方法1:基于xml的配置

springmvc.xml配置类

  
  
    
      erroe
    
  

2.方法2：基于@ControllerAdvice

@ControllerAdvice
public class ExceptionResolver {
  @ExceptionHandler(value = NullPointerException.class)
public ModelAndView nullPointerExceptionResovler(NullPointerException e, HttpServletRequest request, HttpServletResponse response) throws IOException {
   String viewName="erroe";
    return commonReslover(viewName,response,request,e);
  }
  private ModelAndView commonReslover(String viewName,HttpServletResponse response,HttpServletRequest request,Exception e) throws IOException {
    boolean judgeResult = CrowdUtil.judgeRequestType(request);
    if(judgeResult){
      ResultEntity