前端组件

1、安装pinia(Vue 的专属状态管理库)：

npm install pinia

2、安装pinia-plugin-persistedstate(持久存储插件):

npm install pinia-plugin-persistedstate

浏览器刷新时，有些数据希望是保存下来的。如用户登录后，用户信息会存储在全局状态中，如果不持久化状态，那么每次刷新用户都需要重新登录了，所以要用到pinia。

3、安装element-plus(基于Vue3的组件库,提供了一套现代、优雅的 UI 组件):

npm install element-plus

4、安装Axios(前端用于和后端交互)：

npm install axios

5、安装svg插件：

npm install vite-plugin-svg-icons -D

如果npm检测到漏洞使用npm audit查看详细信息，使用npm audit fix自动修复

6、安装nprogress进度条插件：

npm install nprogress

7、按照项目框架搭建目录、文件、代码：如router、views、store、api…

前端组件使用基本内容

pinia使用

src目录下创建store目录，store目录下创建文件index.ts

import {createPinia} from "pinia";
import piniaPluginPersistedstate from "pinia-plugin-persistedstate";

const pinia = createPinia();
pinia.use(piniaPluginPersistedstate)
export default pinia;

main.ts中引入pinia

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'
import router from './router'
import pinia from "./store";

const app = createApp(App)
app.use(router)
app.use(pinia)
app.mount('#app')

element-plus使用

main.ts中引入element-plus

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'
import router from './router'
import pinia from "./store";
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
//导入element-plus图标
import  * as ElementPlusIconsVue from '@element-plus/icons-vue'

const app = createApp(App)
app.use(router)
app.use(pinia)
//将图标进行全局注册
for (const [key,component] of Object.entries(ElementPlusIconsVue)) {
    app.component(key,component)
}
app.use(ElementPlus)
app.mount('#app')

Axios使用

src目录下创建api目录，api目录下创建文件request.ts文件

import axios from "axios"

const service = axios.create({
    baseURL: "http://localhost:8081",
    timeout:1000*100
})
export default service

svg插件使用

在vite.config.ts中配置vite-plugin-svg-icons插件

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import { createSvgIconsPlugin } from 'vite-plugin-svg-icons'
import path from 'path'


// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
      vue(),
      createSvgIconsPlugin({
        //指定需要缓存的图标文件夹
        iconDirs:[path.resolve(process.cwd(),"src/icons/svg")],
        //指定SymbolId格式
        symbolId:"icon-[dir]-[name]"
      })
  ],
})

在src/components创建SvgIcon目录，SvgIcon目录下创建Index.vue

<script  lang="ts" >
import {computed} from "vue"

export default {
  name: "baseSvgIcon",
  props: {
    iconClass: {type: String},
    className: {type: String}
  },
  setup(props){
    const iconName  = computed(()=>{
      return props.iconClass ?`#icon-${props.iconClass}` :'#icon'
    })

    const svgClass  = computed(()=>{
      return props.className ?`#icon-${props.className}` :'svg-icon'
    })
    return  {iconName, svgClass}
  }
}
</script>

<template>
<svg :class="svgClass" aria-haspopup="true">
  <use :xlink:href="iconName"></use>
</svg>
</template>

<style scoped>
.svg-icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}
</style>

创建src/icons/svg目录，在目录中放入任意图标

在main.ts全局注册组件

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'
import router from './router'
import pinia from "./store";
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
//导入element-plus图标
import  * as ElementPlusIconsVue from '@element-plus/icons-vue'
//svg-icons注册导入
import 'virtual:svg-icons-register'
import SvgIcon from "./components/SvgIcon/index.vue";


const app = createApp(App)
app.use(router)
app.use(pinia)
//将图标进行全局注册
for (const [key,component] of Object.entries(ElementPlusIconsVue)) {
    app.component(key,component)
}
app.use(ElementPlus)
app.component('svg-icon', SvgIcon)
app.mount('#app')

nprogress 插件使用

src目录下新建config目录，config目录下新建nprogress.ts文件

import NProgress from 'nprogress'
import 'nprogress/nprogress.css'

NProgress.configure({
    easing: 'ease',//动画方式
    speed: 500,//递增进度条速度
    showSpinner: true,//是否显示加载Icon
    trickleSpeed: 200,//自动递增间隔
    minimum:0.3//初始化时的最小百分比
})

export default NProgress

在src/router/index.ts文件中添加代码，针对路由跳转设置进度条

//导入vue-router模块
import {createRouter,createWebHashHistory} from "vue-router"
import Nprogress from "../config/nprogress.ts";

//定义路由
const routers = [{
    path:"/",
    name:"login",
    meta: {title:"后台登录管理系统"},
    component: ()=> import("../views/Login.vue")

}]

//创建路由实例并传递router配置
const router = createRouter({
    history: createWebHashHistory(),
    routes:routers

})
//路由拦截守卫
router.beforeEach(async (to, from, next) => {
    //1、Nprogress开始
    Nprogress.start()
    next()
})
//路由跳转结束
router.afterEach(async (to, from, next) => {
    Nprogress.done()
})
//路由跳转失败
router.onError(error => {
    console.warn("路由错误：",error.message)
})
export default router

style.css中修改进度条样式

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

.card {
  padding: 2em;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}

/* 使进度条显示为七彩渐变色 */
#nprogress .bar {
  height: 4px;  /* 设置进度条高度 */
  background: linear-gradient(
          to right,
          red,
          orange,
          yellow,
          green,
          blue,
          indigo,
          violet
  )!important; /* 使用线性渐变实现七彩效果 */
}

/* 修改进度条右侧的阴影颜色，使其匹配彩虹色 */
#nprogress .peg {
  box-shadow: 0 0 10px red, 0 0 5px orange, 0 0 5px yellow, 0 0 5px green, 0 0 5px blue, 0 0 5px indigo, 0 0 5px violet;
}
/* 修改右侧小圆圈为彩色 */
#nprogress .spinner-icon {
  border-top-color: red !important;
  border-right-color: orange !important;
  border-bottom-color: yellow !important;
  border-left-color: green !important;

  width: 18px !important;
  height: 18px !important;
  border-width: 3px !important;
}

/* 保持小圆圈的旋转动画 */
#nprogress .spinner-icon {
  animation: nprogress-spinner 400ms linear infinite !important;
}

/* 如果你希望小圆圈的背景透明，也可以添加以下代码 */
#nprogress .spinner {
  background: none !important;
}