var url = "http://localhost:8003/login";
var params = new URLSearchParams();
params.append('name', 'admin');       //你要傳給後臺的引數值 key/value
params.append('password', '123456');
this.$ajax({
  method: 'post',
  url:url,
  data:params
}).then((res)=>{

});

main.js檔案：

import Vue from 'vue'
import App from './App'
import router from './router'

import ElementUI from 'element-ui' //引入餓了麼UI框架
import 'element-ui/lib/theme-chalk/index.css'

// import axios from './axios';//通過import引入
import axios from 'axios';//通過import引入
axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
 


Vue.prototype.$ajax = axios




Vue.config.productionTip = false

Vue.use(ElementUI)


/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})
// new Vue({
//   el: '#app',
//   router,
//   axios,//通過import引入，然後在這裡呼叫
//   components: { App },
//   template: '<App/>'
// })