vue-resouce设置请求头的三种方法

var vm = new Vue({
  el:'#rrapp',
  data:{
   showList: true,
   title: null
  },
  http: {
    root: '/',
    headers: {
      token: token
    }
  }
})

Vue.http.headers.common['token'] = 'YXBpOnBhc3N3b3Jk';

Vue.http.interceptors.push((request, next) => {
    request.headers.set('token', token); //setting request.headers
    next((response) => {
      return response
   })
})

Vue.http.interceptors.push((request,next)=>{
 //request.credentials = true; // 接口每次请求会跨域携带cookie
 //request.method= 'POST'; // 请求方式（get,post）
 //request.headers.set('token','111') // 请求headers携带参数

 next(function(response){
  return response;

 });
})