vue3集成axios，添加拦截器

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npm install axios --save

在main.ts中引入

import { createApp } from 'vue'
import axios from 'axios' // 1、引入
import router from './router'
import store from './store'

import App from './App.vue'
axios.defaults.baseURL = 'http://localhost:7001/api/' // 2、配置基础API
axios.interceptors.request.use(config => { // 3、添加拦截器
  store.commit('setLoading', true)
  store.commit('setError', { status: false, message: '' })
  return config
})

axios.interceptors.response.use(config => { // 4、添加拦截器
  setTimeout(() => {
    store.commit('setLoading', false)
  }, 1000)
  return config
}, e => {
  const { error } = e.response.data
  store.commit('setError', { status: true, message: error })
  store.commit('setLoading', false)
  return Promise.reject(e.response.data)
})
const app = createApp(App)
app.use(router)
app.use(store)
app.mount('#app')

官方配置Interceptors拦截器示例

// Add a request interceptor
axios.interceptors.request.use(function (config) {
    // Do something before request is sent
    return config;
  }, function (error) {
    // Do something with request error
    return Promise.reject(error);
  });

// Add a response interceptor
axios.interceptors.response.use(function (response) {
    // Any status code that lie within the range of 2xx cause this function to trigger
    // Do something with response data
    return response;
  }, function (error) {
    // Any status codes that falls outside the range of 2xx cause this function to trigger
    // Do something with response error
    return Promise.reject(error);
  });