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");
}