vue与struct2的通信

import VueResource from 'vue-resource'
...
Vue.use(VueResource)
//以下代码必须写在Vue.use(VueResource)后面
Vue.http.options.emulateHTTP = true;
Vue.http.options.emulateJSON = true;

Vue.http.headers.common['Content-Type'] = 'application/json'
Vue.http.headers.common['Access-Control-Allow-Origin'] = '*'
Vue.http.headers.common['Accept'] = 'application/json, text/plain, */*'
Vue.http.headers.common['Access-Control-Allow-Headers'] = 'Origin, Accept, Content-Type, Authorization, Access-Control-Allow-Origin'

...
<script>
export default{
  ...
   methods:{
    	login(){
            let data = {}
            this.$http.jsonp(this.url,{
				params:data,
				jsonp: 'callBackParam',
				jsonpCallback: "success_jsonpCallback"
				}
			).then((res)=>{
				if(res.data){
				       console.log(res)
				}
			},(err)=>{				
				console.log(err)
			});
        }
   }
}
</script>
...

...
public string hello(){
     JSONObject result = new JSONObject();
    result.put("status", "ok");
    ...
    try {
        HttpServletResponse response = ServletActionContext.getResponse();
        response.setContentType("text/html;charset=utf-8");
        Object o = "success_jsonpCallback("+result+")";
        PrintWriter out=response.getWriter();
	if(null!=o){
		out.print(o.toString());
	}
	out.flush();
	out.close();
    } catch (Exception e) {			
	e.printStackTrace();
    }
}
...