问题
I am testing with axios within a Vue application and the CLI. I've been using vue-resource and I could access it on all my components by simply passing it to Vue.use (VueResource). How can I achieve this with axios, so I do not have to import it into a component, but simply define it once in the main.js file?
回答1:
In main.js you can just assign Axios to $http.
main.js
import Axios from 'axios'
Vue.prototype.$http = Axios;
By modifying the vue prototype, any vue instance will have the ability to call $http on this. (e.g. this.$http.get('https://httpbin.org/get')
Note: $http is the axios object now, so any method you can call on axios object, you can call on this.$http.
来源：https://stackoverflow.com/questions/48650107/use-axios-globally-in-all-my-components-vue