前言
最近在系统学习vue3的项目实战，这里是对学习过程中的总结，包括一些库，框架的网站。
项目介绍
本项目基于Vue3 + ElementPlus + Vite实战开发商城后台管理系统，其中包括Vite的使用，Vue3全新的
node.js的搭建
1.node官网下载
https://nodejs.org/zh-cn/
2.npm 淘宝镜像安装
npm install -g cnpm --registry=https://registry.npm.taobao.org
cnpm -v //查看版本号
vite项目搭建
1.vite官网和介绍
http://www.vitejs.net/
Vite 需要 Node.js 版本 >= 12.0.0。，通过
npm init vite@latest //查看版本号
2.创建vue3项目
#npm 7+, 需要额外的双横线：
npm init vite@latest my-vue-app -- --template vue
#npm 6.x
npm init vite@latest my-vue-app --template vue
再按要求勾选相关需要， npm run dev 运行。
Element Plus UI库引入
1. Element Plus网站
https://element-plus.gitee.io/zh-CN/
Element Plus 是用于vue3的element库，vue2是element-ui 注意一下
2.库安装
npm install element-plus --save
3.引入UI库文件
main.js文件
import { createApp } from 'vue'
import './style.css'
// 引入element依赖文件
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
import App from './App.vue'
const app = createApp(App)
app.use(ElementPlus)
app.mount('#app')
windicss 框架
1.网站
https://windicss.org/
2.安装
npm i -D vite-plugin-windicss windicss
3.Vite 配置中添加插件 ，和Vite 入口文件中导入
vite.config.js 文件
import vue from '@vitejs/plugin-vue'
import { defineConfig } from 'vite'
import WindiCSS from 'vite-plugin-windicss'
// https://vitejs.dev/config/
export default defineConfig({
plugins: [
vue(),
WindiCSS()
],
})
main.js 文件
import { createApp } from 'vue'
import './style.css'
// 引入element依赖文件
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
import App from './App.vue'
const app = createApp(App)
app.use(ElementPlus)
// 引入windi.css
import 'virtual:windi.css'
app.mount('#app')
vue-router 路由
1.网站
https://router.vuejs.org/zh/
2.安装
npm install vue-router@4
全局配置
router/index.js 文件
//1. 导入vue-router相关函数
import { createRouter, createWebHashHistory } from "vue-router"
// 2.路由规则
const routes = [
{
path:"路由地址",
name:"路由名称",
component:组件名称
}
]
// 3.路由对象实例化
const router = createRouter({
history: createWebHashHistory(),
routes
})
// 暴露导出
export default router
main.js 文件
import { createApp } from 'vue'
import './style.css'
// 引入element依赖文件
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
// 导入router配置文件
import router from "./router"
import App from './App.vue'
const app = createApp(App)
// 挂载文件
app.use(ElementPlus)
app.use(router)
// 引入windi.css
import 'virtual:windi.css'
app.mount('#app')
路径别名设置
vite.config.js 文件
import vue from '@vitejs/plugin-vue'
import { defineConfig } from 'vite'
import WindiCSS from 'vite-plugin-windicss'
// 1.导入node的path路径模块
import path from "path"
// https://vitejs.dev/config/
export default defineConfig({
resolve: {
alias: {
// 配置别名
"~": path.resolve(__dirname, "src")
}
},
plugins: [vue(), WindiCSS()]
})
添加404页面
建好一个404页面组件，再路由index.js里
//1. 导入vue-router相关函数
import { createRouter, createWebHashHistory } from "vue-router"
// 导入页面组件
import Home from "~/views/Home.vue"
import NotFound from "~/views/Page404.vue"
// 2.路由规则
const routes = [
{
path: "/",
redirect: "/home"
},
{
path: "/home",
component: Home
},
// 404页面设置
{
path: '/:pathMatch(.*)*',
name: 'NotFound',
component: NotFound
},
]
// 3.路由对象实例化
const router = createRouter({
history: createWebHashHistory(),
routes
})
// 暴露导出
export default router
登录页面布局
1.创建Login.vue组件并配置路由
配置路由
//1. 导入vue-router相关函数
import { createRouter, createWebHashHistory } from "vue-router"
// 导入页面组件
import Home from "~/views/Home.vue"
import Login from "~/views/Login.vue"
import NotFound from "~/views/Page404.vue"
// 2.路由规则
const routes = [
{
path: "/",
redirect: "/home"
},
{
path: "/home",
name: Home,
component: Home
},
{
path: "/login",
name: Login,
component: Login
},
{
path: '/:pathMatch(.*)*',
name: 'NotFound',
component: NotFound
},
]
// 3.路由对象实例化
const router = createRouter({
history: createWebHashHistory(),
routes
})
// 暴露导出
export default router
Login.vue组件布局源代码
<!-- 视图层 -->
<template>
<el-row class="min-h-screen bg-indigo-500">
<el-col :span="16" class="flex items-center justify-center">
<div>
<div class="font-bold text-5xl text-light-50 mb-4">欢迎光临
</div>
<div class="text-gray-200 text-sm">《vue3商城后台管理系统》
</div>
<el-icon><Lock /></el-icon>
</div>
</el-col>
<el-col
:span="8"
class="bg-light-50 flex items-center justify-center flex-col"
>
<h2 class="font-bold text-3xl text-gray-800">欢迎回来</h2>
<div
class="flex items-center justify-center my-5 text-gray-300
space-x-2"
>
<span class="h-[1px] w-16 bg-gray-200"></span>
<span>账号密码登录</span>
<span class="h-[1px] w-16 bg-gray-200"></span>
</div>
<el-form :model="form" class="w-[250px]">
<el-form-item>
<el-input v-model="form.username" placeholder="请输入用户
名">
<template #prefix>
<el-icon><UserFilled /></el-icon>
</template>
</el-input>
</el-form-item>
<el-form-item>
<el-input v-model="form.password" placeholder="请输入密
码">
<template #prefix>
<el-icon><Lock /></el-icon>
</template>
</el-input>
</el-form-item>
<el-form-item>
<el-button
round
color="#626aef"
class="w-[250px]"
type="primary"
@click="onSubmit"
>登 录</el-button
>
></el-form-item>
</el-form>
</el-col>
</el-row>
</template>
<!-- 逻辑层 -->
<script setup>
import { reactive } from "vue";
// 导入icon图标
// import { Lock, UserFilled } from "@element-plus/icons-vue";
// do not use same name with ref
const form = reactive({
username: "",
password: "",
});
const onSubmit = () => {
console.log("submit!");
};
</script>
<!-- 样式层 -->
<style lang="" scoped>
</style>
2.表单验证
:rules=“rules” 绑定规则
ref=“formRef” 获取el-form表单组件实例对象
prop=“username” 关联指定对象
show-password 密码显示图标—–小眼睛
<el-form :rules="rules" ref="formRef" :model="form" class="w-[250px]">
<el-form-item prop="username">
<el-input v-model="form.username" placeholder="请输入用户
名">
<template #prefix>
<el-icon><UserFilled /></el-icon>
</template>
</el-input>
</el-form-item>
<el-form-item prop="password">
<el-input
type="password"
v-model="form.password"
placeholder="请输入密码"
show-password
>
<template #prefix>
<el-icon><Lock /></el-icon>
</template>
</el-input>
</el-form-item>
<el-form-item>
<el-button
round
color="#626aef"
class="w-[250px]"
type="primary"
@click="onSubmit"
>登 录</el-button
>
</el-form-item>
</el-form>
import { reactive, ref } from "vue";
const form = reactive({
username: "",
password: "",
});
// 验证规则
const rules = {
username: [
{
required: true,
message: "用户名不能为空",
trigger: "blur",
},
],
password: [
{
required: true,
message: "密码不能为空",
trigger: "blur",
},
],
};
// 获取form元素节点对象
const formRef = ref(null);
const onSubmit = () => {
formRef.value.validate((valid) => {
if (!valid) {
return false;
}
console.log("验证通过");
});
};