/**
* 判断ajax请求
* @param request
* @return
*/
boolean
isAjax(HttpServletRequest request){
return
(request.getHeader(
"X-Requested-With"
) !=
null
&&
"XMLHttpRequest"
.equals( request.getHeader(
"X-Requested-With"
).toString()) ) ;
}
ajax返回值有<pre>标签时,ajax添加属性dataType为text类型即可!