Spring端设置请求@ResponseBody时，Axios如何正确发送请求体？
const body = {};
axios.post('url',body)
.then()
.catch()
其他方式均不行
Using application/x-www-form-urlencoded format
By default, axios serializes JavaScript objects to JSON. To send data in the application/x-www-form-urlencoded format instead, you can use one of the following options.
使用Axios传参时，传统的后端Spring MVC是无法获取到参数的
var qs = require('qs');
axios.post('/foo', qs.stringify({ 'bar': 123 }));
了解更多 Axios Readme
呃，非webpack的项目怎么require('qs')？非webpack为什么不用JQuery的ajax呢……
