vite2 + vue3 + vue-router4 + vuex4 + element-plus 实战(三)-axios和vuex

女爷i 2021-09-10 07:48 300阅读 0赞

### 安装axios和vuex ###

yarn add axios vuex@next

### 简单封装axios ###

1.  在src目录下新建utils文件夹
2.  utils文件夹下新建request.js

*  request.js

import axios from 'axios'
    import { ElMessage } from 'element-plus'
    import store from '@/store'
    import { getToken, removeToken } from '@/utils/auth'
    import router from '@/router'
    
    const service = axios.create({
      baseURL: '/admin/', // url = base url + request url
      timeout: 10000 // request timeout
    })
    
    // request interceptor
    service.interceptors.request.use(
      config => {
        // do something before request is sent
        if (store.getters.token) {
          config.headers['Authorization'] = 'Bearer ' + getToken()
        }
        config.headers['Accept'] = 'application/json'
    
        return config
      },
      error => {
        // do something with request error
        return Promise.reject(error)
      }
    )
    
    // response interceptor
    service.interceptors.response.use(
      response => {
        const res = response.data
        // if the custom code is not 20000, it is judged as an error.
        if (res.code === 1) {
          ElMessage({
            message: res.message || 'Error',
            type: 'error',
            duration: 5 * 1000,
            showClose: true
          })
          return Promise.reject(new Error(res.message || 'Error'))
        } else {
          return res
        }
      },
      error => {
        if (error.response && error.response.status !== 400 && error.response.status !== 401 && error.response.status !== 409) {
          ElMessage({
            message: error.response && error.response.data && error.response.data.message || error.message,
            type: 'error',
            duration: 5 * 1000,
            showClose: true
          })
        }
        if (error.response && error.response.status === 401) {
          ElMessage({
            message: '登录已经失效!',
            type: 'error',
            duration: 5 * 1000,
            showClose: true
          })
          setTimeout(removeToken(), 2000)
          setTimeout(router.push('/login'), 1000);
        }
        if (error.response && error.response.status === 400) {
          ElMessage({
            message: error.response.data.message,
            type: 'error',
            duration: 5 * 1000,
            showClose: true
          })
        }
        return Promise.reject(error)
      }
    )
    
    export default service

### 状态管理vuex ###

1.  在src目录下新建store文件夹
2.  store文件夹下新建index.js, getters.js,以及modules文件夹

*  index.js

import { createStore } from 'vuex'
    
    import getters from './getters'
    // 导入模块
    const moduleFiles = import.meta.globEager('./modules/*.js')
    
    var modules = {}
    
    for (const path in moduleFiles) {
      const moduleName = path.replace(/^\.\/(.*)\.\w+$/, '$1').split('/')[1]
      modules[moduleName] = moduleFiles[path].default
    }
    
    export default createStore({
      modules,
      getters
    })

*  getters.js

const getters = {
      token: (state) => state.user.token,
      name: (state) => state.user.name,
      avatar: (state) => state.user.avatar,
    };
    
    export default getters;

### 修改src/main.js,使用状态管理 ###

import { createApp } from "vue";
    import App from "@/App.vue";
    import router from "@/router";
    import store from "@/store";
    import installElementPlus from "@/plugins/element";
    
    import "@/styles/index.scss";
    
    const app = createApp(App);
    
    installElementPlus(app);
    
    app.use(router).use(store).mount("#app");

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