1、关于action中解决跨域请求问题：

（1）、action中使用ajax传值时
HttpServletRequest request = ServletActionContext.getRequest();
String origin = request.getHeader("Origin");
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html;charset=GBK");// 解决中文乱码
response.setHeader("Access-Control-Allow-Origin", origin);
response.addHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE");
response.setHeader("Access-Control-Allow-Credentials", "true");

　　

（2）、ajax请求示例
$.ajax({type:"POST",url:getUrl()+"minehome!mineform.do",dataType:"JSON",data : {'start' : start++,'end' : end,'nickName' : nickName},xhrFields: {withCredentials: true},success:mineUser,error:function(){elert("AAAAA");}
});function mineUser(data){alert("aaaaaa");
}