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目前，关于vue中使用axios的作为前端和后端接口交互工具的用法文章，网络某博客上数不胜数。因为项目从0到1开始需要基于vite+vue3.0+ts中封装axios，所以今天让小编来给大家安排axios整合vite+vue3.0+ts的具体封装步骤。记录一下自己封装步骤，跟着我的步伐，撸起来。。。（学习视频分享：vue视频教程）

以下内容均基于下方视频完结后的扩展：

2021最新最详细的Vite+vue3+Volar+Ts+Element-plus框架学习项目视频

npm i axios

注意：这里的安装命令就是默认安装最新版本的axios

export const errorCodeType = function(code:string):string{    let errMessage:string = "未知错误"    switch (code) {        case 400:         errMessage = '错误的请求'         break         case 401:         errMessage = '未授权，请重新登录'         break        case 403:         errMessage = '拒绝访问'         break         case 404:         errMessage = '请求错误,未找到该资源'         break         case 405:         errMessage = '请求方法未允许'         break         case 408:         errMessage = '请求超时'         break         case 500:         errMessage = '服务器端出错'         break         case 501:         errMessage = '网络未实现'         break         case 502:         errMessage = '网络错误'         break         case 503:         errMessage = '服务不可用'         break         case 504:         errMessage = '网络超时'         break         case 505:         errMessage = 'http版本不支持该请求'         break         default:         errMessage = `其他连接错误 --${code}`    }    return errMessage}

这里用到的element-plus大家可以参考其官网安装即可，传送门：

element-plus官网

安装命令：npm install element-plus --save

import axios from 'axios';import { errorCodeType } from '@/script/utils/error-code-type';import { ElMessage, ElLoading } from 'element-plus';// 创建axios实例const service = axios.create({    // 服务接口请求    baseURL: import.meta.env.VITE_APP_BASE_API,    // 超时设置    // timeout: 15000,    headers:{'Content-Type':'application/json;charset=utf-8'}})let loading:any;//正在请求的数量let requestCount:number = 0//显示loadingconst showLoading = () => {    if (requestCount === 0 && !loading) {        //加载中显示样式可以自行修改        loading = ElLoading.service({            text: "拼命加载中，请稍后...",            background: 'rgba(0, 0, 0, 0.7)',            spinner: 'el-icon-loading',        })    }    requestCount++;}//隐藏loadingconst hideLoading = () => {    requestCount--    if (requestCount == 0) {        loading.close()    }}// 请求拦截service.interceptors.request.use(config => {    showLoading()    // 是否需要设置 token放在请求头    // config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改    // get请求映射params参数    if (config.method === 'get' && config.params) {        let url = config.url + '?';        for (const propName of Object.keys(config.params)) {            const value = config.params[propName];            var part = encodeURIComponent(propName) + "=";            if (value !== null && typeof(value) !== "undefined") {                 // 对象处理                if (typeof value === 'object') {                    for (const key of Object.keys(value)) {                        let params = propName + '[' + key + ']';                        var subPart = encodeURIComponent(params) + "=";                        url += subPart + encodeURIComponent(value[key]) + "&";                    }                } else {                    url += part + encodeURIComponent(value) + "&";                }            }        }        url = url.slice(0, -1);        config.params = {};        config.url = url;    }    return config}, error => {    console.log(error)    Promise.reject(error)})// 响应拦截器service.interceptors.response.use((res:any) => {        hideLoading()        // 未设置状态码则默认成功状态        const code = res.data['code'] || 200;        // 获取错误信息        const msg = errorCodeType(code) || res.data['msg'] || errorCodeType('default')        if(code === 200){            return Promise.resolve(res.data)        }else{            ElMessage.error(msg)            return Promise.reject(res.data)        }    },    error => {        console.log('err' + error)        hideLoading()        let { message } = error;        if (message == "Network Error") {            message = "后端接口连接异常";        }        else if (message.includes("timeout")) {            message = "系统接口请求超时";        }        else if (message.includes("Request failed with status code")) {            message = "系统接口" + message.substr(message.length - 3) + "异常";        }        ElMessage.error({            message: message,            duration: 5 * 1000        })        return Promise.reject(error)    })export default service;

declare global {  const computed: typeof import('vue')['computed']  const createApp: typeof import('vue')['createApp']  const customRef: typeof import('vue')['customRef']  const defineAsyncComponent: typeof import('vue')['defineAsyncComponent']  const defineComponent: typeof import('vue')['defineComponent']  const effectScope: typeof import('vue')['effectScope']  const EffectScope: typeof import('vue')['EffectScope']  const getCurrentInstance: typeof import('vue')['getCurrentInstance']  const getCurrentScope: typeof import('vue')['getCurrentScope']  const h: typeof import('vue')['h']  const inject: typeof import('vue')['inject']  const isReadonly: typeof import('vue')['isReadonly']  const isRef: typeof import('vue')['isRef']  const markRaw: typeof import('vue')['markRaw']  const nextTick: typeof import('vue')['nextTick']  const onActivated: typeof import('vue')['onActivated']  const onBeforeMount: typeof import('vue')['onBeforeMount']  const onBeforeUnmount: typeof import('vue')['onBeforeUnmount']  const onBeforeUpdate: typeof import('vue')['onBeforeUpdate']  const onDeactivated: typeof import('vue')['onDeactivated']  const onErrorCaptured: typeof import('vue')['onErrorCaptured']  const onMounted: typeof import('vue')['onMounted']  const onRenderTracked: typeof import('vue')['onRenderTracked']  const onRenderTriggered: typeof import('vue')['onRenderTriggered']  const onScopeDispose: typeof import('vue')['onScopeDispose']  const onServerPrefetch: typeof import('vue')['onServerPrefetch']  const onUnmounted: typeof import('vue')['onUnmounted']  const onUpdated: typeof import('vue')['onUpdated']  const provide: typeof import('vue')['provide']  const reactive: typeof import('vue')['reactive']  const readonly: typeof import('vue')['readonly']  const ref: typeof import('vue')['ref']  const resolveComponent: typeof import('vue')['resolveComponent']  const shallowReactive: typeof import('vue')['shallowReactive']  const shallowReadonly: typeof import('vue')['shallowReadonly']  const shallowRef: typeof import('vue')['shallowRef']  const toRaw: typeof import('vue')['toRaw']  const toRef: typeof import('vue')['toRef']  const toRefs: typeof import('vue')['toRefs']  const triggerRef: typeof import('vue')['triggerRef']  const unref: typeof import('vue')['unref']  const useAttrs: typeof import('vue')['useAttrs']  const useCssModule: typeof import('vue')['useCssModule']  const useCssVars: typeof import('vue')['useCssVars']  const useSlots: typeof import('vue')['useSlots']  const watch: typeof import('vue')['watch']  const watchEffect: typeof import('vue')['watchEffect']}export {}

import '@vue/runtime-core'declare module '@vue/runtime-core' {  export interface GlobalComponents {    ElCard: typeof import('element-plus/es')['ElCard']    ElCol: typeof import('element-plus/es')['ElCol']    ElContainer: typeof import('element-plus/es')['ElContainer']    ElFooter: typeof import('element-plus/es')['ElFooter']    ElHeader: typeof import('element-plus/es')['ElHeader']    ElMain: typeof import('element-plus/es')['ElMain']    ElOption: typeof import('element-plus/es')['ElOption']    ElPagination: typeof import('element-plus/es')['ElPagination']    ElRadioButton: typeof import('element-plus/es')['ElRadioButton']    ElRadioGroup: typeof import('element-plus/es')['ElRadioGroup']    ElRow: typeof import('element-plus/es')['ElRow']    ElSelect: typeof import('element-plus/es')['ElSelect']    ElTable: typeof import('element-plus/es')['ElTable']    ElTableColumn: typeof import('element-plus/es')['ElTableColumn']    Loading: typeof import('element-plus/es')['ElLoadingDirective']  }}export {}

import { defineConfig } from 'vite';import vue from '@vitejs/plugin-vue';import Icons from "unplugin-icons/vite";import IconsResolver from "unplugin-icons/resolver";import AutoImport from "unplugin-auto-import/vite";import Components from "unplugin-vue-components/vite";import { ElementPlusResolver } from "unplugin-vue-components/resolvers";import { loadEnv } from 'vite';import path from 'path';// 路径const pathSrc = path.resolve(__dirname,'src')// https://vitejs.dev/config/export default({ command, mode }) => {    return defineConfig({        plugins: [            vue(),            AutoImport({                // Auto import functions from Vue, e.g. ref, reactive, toRef...                // 自动导入 Vue 相关函数，如：ref, reactive, toRef 等                imports: ["vue"],                // Auto import functions from Element Plus, e.g. ElMessage, ElMessageBox... (with style)                // 自动导入 Element Plus 相关函数，如：ElMessage, ElMessageBox... (带样式)                resolvers: [                    ElementPlusResolver(),                    // Auto import icon components                    // 自动导入图标组件                    IconsResolver({                        prefix: "Icon",                    }),                ],                dts: path.resolve(pathSrc, "auto-imports.d.ts"),            }),                        // 自动导入 Element Plus 组件            Components({                resolvers: [                    // Auto register icon components                    // 自动注册图标组件                    IconsResolver({                        enabledCollections: ["ep"],                    }),                    // Auto register Element Plus components                                       ElementPlusResolver(),                ],                dts: path.resolve(pathSrc, "components.d.ts"),            }),            // 图标            Icons({                autoInstall: true,            }),        ],        server:{            host: '127.0.0.1',            //port: Number(loadEnv(mode, process.cwd()).VITE_APP_PORT),            port: 3000,            strictPort: true, // 端口被占用直接退出            https: false,            open: true,// 在开发服务器启动时自动在浏览器中打开应用程序            proxy: {                // 字符串简写写法                '^/api': {                    target: mode==='development'?loadEnv(mode, process.cwd()).VITE_APP_DEV_URL:loadEnv(mode, process.cwd()).VITE_APP_PROD_URL,                    changeOrigin: true,                    rewrite: (path) => path.replace(/^\/api/, '')                }            },            hmr:{                overlay: false // 屏蔽服务器报错            }        },        resolve:{            alias:{                '@': pathSrc,            }        },        css:{            // css预处理器            /*preprocessorOptions: {                scss: {                    additionalData: '@import "@/assets/styles/global.scss";'                }            }*/             preprocessorOptions: {               less: {                 charset: false,                 additionalData: '@import "./src/assets/style/global.less";',                },            },        },        build:{            chunkSizeWarningLimit: 1500, // 分块打包，分解块，将大块分解成更小的块            rollupOptions: {                output:{                    manualChunks(id) {                        if (id.includes('node_modules')) {                            return id.toString().split('node_modules/')[1].split('/')[0].toString();                        }                    }                }            }        }    })}

完整的环境变量配置文件.env.production和.env.development

7.1、项目根目录的development文件内容如下

# 开发环境VITE_APP_TITLE = "阿绵" # 端口号 VITE_APP_PORT = "3000" # 请求接口 VITE_APP_DEV_URL = "http://localhost:8088" # 前缀 VITE_APP_BASE_API = "/api"

7.2、项目根目录下的production文件内容如下

# 开发环境 VITE_APP_TITLE = "阿绵" # 端口号 VITE_APP_PORT = "3000" # 请求接口 VITE_APP_DEV_URL = "http://localhost:8088" # 前缀 VITE_APP_BASE_API = "/api"

注意：这里还有一个PageParams全局分页对象：

page-params.ts

代码如下：

// 全局统一分页参数类型声明 declare interface PageParams {    pageNum: number, pageSize: number, type?: Model, // 可选参数     readonly sort?: string // 只读可选参数 } interface Model { type?: string }export default PageParams;

本篇讨论的主要内容是：

（学习视频分享：web前端开发、编程基础视频）

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