springboot-全局异常处理类

@ControllerAdvice
public class GlobalExceptionHandler(){
  @ExceptionHandler(value=Exception.class)
  @ResponseBody
  private Map<String, Object> exceptionHandler(HttpServletRequest req,Exception e) {
  　　Map<String,Object> modeMap = new HashMap<String,Object>();
  　　modeMap.put("success",false);
  　　modeMap.put("errmsg",e.getMessage());
 　　　return modeMap;
}
}

1、页面跳转形式；2、ajax；3、统一返回异常的形式

异常处理web请求或ajax请求

@ControllerAdvice
public class GlobalExceptionHandler(){
  @ExceptionHandler(value=Exception.class)
  @ResponseBody
  private Object exceptionHandler(HttpServletRequest req,Exception e) {
     e.printStackTrace();
    if(isAjax(req)){
        return RestltBean();//返回异常结果类
    }else{
        ModeAndView mav = new ModeAndView();
        mav.addObject("Exception",e);
        mav.addObject("url",req.getRequestURL());
        mav.setViewName("error");
        return mav;
    }
  　
}
}
    

判断是否是ajax请求

public static Boolean isAjax(HttpServletRequest req){
  return req.getHeader("X-Requested-With") != null && "XMLHttpRequest".equals(req.getHeader("X-Requested-With").toString());
}