1、安装Qs依赖

npm install qs

2、js中引用Qs

import Qs from 'qs'

3、构造数据

var formData =  Qs.stringify({
    username:'test',
    password:'123456'
});

4、使用数据

axios.request({
    url: '/auth/login',
    method: 'POST',
    data: formData,
    headers: {
      'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
      'Authorization': 'Bearer ' + token
    }
})