解决Ajax跨域问题：Origin http://127.0.0.1:8080 is not allowed by Access-Control-Allow-Origin.
在服务端上设置一下header,如response.header("Access-Control-Allow-Origin","*");
文章来自：http://www.cnblogs.com/leehongee/p/3598317.html
在服务端上设置一下header,如response.header("Access-Control-Allow-Origin","*");