原文章:
https://blog.csdn.net/qq_44827865/article/details/115457445
element-plus官方网站:https://element-plus.gitee.io/#/zh-CN/component/installation
甲:为什么在vue3.0中不能使用Element UI了? 乙:由于vue3.0在插件install函数的入参从Vue原型(类)改成了app(vue实例),导致element-ui中Vue.prototype.* 这样的代码已经全都失效了。所以element-ui铁定是不兼容了。 甲:那有什么方法能解决吗? 乙:使用Element UI的升级版element-plus
1、element-plus 安装
npm install element-plus --save
2、引入 Element Plus
2.1 完整引入
在 main.js /ts中写入以下内容:
import { createApp } from 'vue' import ElementPlus from 'element-plus'; import 'element-plus/lib/theme-chalk/index.css'; import App from './App.vue'; const app = createApp(App) app.use(ElementPlus) app.mount('#app')
2.2 按需引入
(1)安装 babel-plugin-import:
npm install babel-plugin
(2)将 babel.config.js 修改为:
module.exports = { plugins: [ [ "import", { libraryName: 'element-plus', customStyleName: (name) => { name = name.slice(3) return `element-plus/packages/theme-chalk/src/${name}.scss`; }, }, ], ], };
(3)创建 src/plugins/elements.js
文件
文件内容如下:
1 import { 2 ElAlert, 3 ElAside, 4 ElAutocomplete, 5 ElAvatar, 6 ElBacktop, 7 ElBadge, 8 ElBreadcrumb, 9 ElBreadcrumbItem, 10 ElButton, 11 ElButtonGroup, 12 ElCalendar, 13 ElCard, 14 ElCarousel, 15 ElCarouselItem, 16 ElCascader, 17 ElCascaderPanel, 18 ElCheckbox, 19 ElCheckboxButton, 20 ElCheckboxGroup, 21 ElCol, 22 ElCollapse, 23 ElCollapseItem, 24 ElCollapseTransition, 25 ElColorPicker, 26 ElContainer, 27 ElDatePicker, 28 ElDialog, 29 ElDivider, 30 ElDrawer, 31 ElDropdown, 32 ElDropdownItem, 33 ElDropdownMenu, 34 ElFooter, 35 ElForm, 36 ElFormItem, 37 ElHeader, 38 ElIcon, 39 ElImage, 40 ElInput, 41 ElInputNumber, 42 ElLink, 43 ElMain, 44 ElMenu, 45 ElMenuItem, 46 ElMenuItemGroup, 47 ElOption, 48 ElOptionGroup, 49 ElPageHeader, 50 ElPagination, 51 ElPopconfirm, 52 ElPopover, 53 ElPopper, 54 ElProgress, 55 ElRadio, 56 ElRadioButton, 57 ElRadioGroup, 58 ElRate, 59 ElRow, 60 ElScrollbar, 61 ElSelect, 62 ElSlider, 63 ElStep, 64 ElSteps, 65 ElSubmenu, 66 ElSwitch, 67 ElTabPane, 68 ElTable, 69 ElTableColumn, 70 ElTabs, 71 ElTag, 72 ElTimePicker, 73 ElTimeSelect, 74 ElTimeline, 75 ElTimelineItem, 76 ElTooltip, 77 ElTransfer, 78 ElTree, 79 ElUpload, 80 ElInfiniteScroll, 81 ElLoading, 82 ElMessage, 83 ElMessageBox, 84 ElNotification, 85 } from "element-plus"; 86 87 88 const components = [ 89 ElAlert, 90 ElAside, 91 ElAutocomplete, 92 ElAvatar, 93 ElBacktop, 94 ElBadge, 95 ElBreadcrumb, 96 ElBreadcrumbItem, 97 ElButton, 98 ElButtonGroup, 99 ElCalendar, 100 ElCard, 101 ElCarousel, 102 ElCarouselItem, 103 ElCascader, 104 ElCascaderPanel, 105 ElCheckbox, 106 ElCheckboxButton, 107 ElCheckboxGroup, 108 ElCol, 109 ElCollapse, 110 ElCollapseItem, 111 ElCollapseTransition, 112 ElColorPicker, 113 ElContainer, 114 ElDatePicker, 115 ElDialog, 116 ElDivider, 117 ElDrawer, 118 ElDropdown, 119 ElDropdownItem, 120 ElDropdownMenu, 121 ElFooter, 122 ElForm, 123 ElFormItem, 124 ElHeader, 125 ElIcon, 126 ElImage, 127 ElInput, 128 ElInputNumber, 129 ElLink, 130 ElMain, 131 ElMenu, 132 ElMenuItem, 133 ElMenuItemGroup, 134 ElOption, 135 ElOptionGroup, 136 ElPageHeader, 137 ElPagination, 138 ElPopconfirm, 139 ElPopover, 140 ElPopper, 141 ElProgress, 142 ElRadio, 143 ElRadioButton, 144 ElRadioGroup, 145 ElRate, 146 ElRow, 147 ElScrollbar, 148 ElSelect, 149 ElSlider, 150 ElStep, 151 ElSteps, 152 ElSubmenu, 153 ElSwitch, 154 ElTabPane, 155 ElTable, 156 ElTableColumn, 157 ElTabs, 158 ElTag, 159 ElTimePicker, 160 ElTimeSelect, 161 ElTimeline, 162 ElTimelineItem, 163 ElTooltip, 164 ElTransfer, 165 ElTree, 166 ElUpload, 167 ] 168 const plugins = [ 169 ElInfiniteScroll, 170 ElLoading, 171 ElMessage, 172 ElMessageBox, 173 ElNotification, 174 ] 175 const installElement = (app) => { 176 components.forEach((component) => { 177 app.component(component.name, component) 178 }) 179 180 plugins.forEach((plugin) => { 181 app.use(plugin) 182 }) 183 } 184 185 export { 186 installElement 187 }
(4)在main.js导入
import { createApp } from 'vue' import App from './App.vue' import router from './router' import store from './store' // 导入Element import { installElement } from "./plugins/elements"; const app = createApp(App) // 调用installElement installElement(app) // 使用installElement createApp(App).use(store).use(router).use(installElement).mount('#app')