Ajax验证

import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class AjaxUtil

{

private static final Logger LOGGER = LoggerFactory.getLogger(AjaxUtil.class);

public static boolean checkIsAjax(HttpServletRequest request)

{

String requestType = request.getHeader("x-requested-with");

boolean isAjax = false;

if ((requestType != null) && (requestType.equals("XMLHttpRequest"))) {

isAjax = true;

}

request.setAttribute("isAjax", Boolean.valueOf(isAjax));

return isAjax;

}

}