“XMLHttpRequest”.equals(request.getHeader(“X-Requested-With”));详解编程语言

 public ModelAndView resolveException(HttpServletRequest request, 

 HttpServletResponse response, Object handler, Exception exception) { 

 boolean isAjax = "XMLHttpRequest".equals(request.getHeader("X-Requested-With")); 

 logger.error(getTrace(exception)); 

 //如果是ajax请求 

 if (isAjax) { 

 第二种写法：参考CSDN 
shenzhenNBA 作者的

if (request.getHeader("x-requested-with") != null 

 request.getHeader("x-requested-with").equalsIgnoreCase("XMLHttpRequest")) { 

 out.print("该请求是 AJAX 异步HTTP请求。"); 

}else{ 

 out.print("该请求是传统的 同步HTTP请求。"); 

13129.html