Vue2與Vue3如何利用install自定義全局確認(rèn)框組件編寫
眾所周知,vue.js框架在提供豐富的插件的前提下,還提供了自定義組件的方式。
在Vue2中使用時(shí)可以直接引用Vue實(shí)例中的extends方法來(lái)生成一個(gè)新的未掛載組件,在需要的時(shí)候再掛載顯示即可。
而Vue3中取消了extends的方法,我們沒(méi)法使用這一方式來(lái)實(shí)現(xiàn)。
所以在升級(jí)到Vue3后這一組件也是閑置了比較長(zhǎng)一段時(shí)間。
這陣子空下來(lái)查閱資料后,找到了相應(yīng)的解決方法。
Vue2中使用install方法注冊(cè)全局組件
1.新建vue-cli項(xiàng)目,這個(gè)作為入門內(nèi)容在此不過(guò)多贅述。
2.在根目錄新建plugin文件夾,打開后新建message文件夾,在此文件夾中新建message.vue和index.js文件,結(jié)構(gòu)目錄如圖所示。

文件結(jié)構(gòu)(忽略box哈)
3.在box.vue中添加代碼,跟平常添加組件類似,這里我們添加的是一個(gè)通知信息的內(nèi)容。
<template>
<transition name="slide-top">
<section id="message" v-if="msgOueue.length > 0">
<transition-group name="slide-top">
<div
class="message"
v-for="item in msgOueue"
:key="item.uid"
:style="
'color:' +
item.config.color +
';background:' +
item.config.background +
';border:1px solid ' +
item.config.borderColor +
';'
"
>
<span class="message-icons" :class="item.config.icon"></span>
<div class="messagebox">{{ item.config.content }}</div>
</div>
</transition-group>
</section>
</transition>
</template><script>
export default {
data() {
return {
msgOueue: [],
config: {
uid: "",
content: "內(nèi)容", // 內(nèi)容
background: "#909399",
color: "#303133",
borderColor: "#303133",
icon: "el-icon-info",
},
};
},
methods: {
// 關(guān)閉方法
onClose() {
this.msgOueue.shift();
this.type = 0;
},
},
};
</script><style scoped>
#message {
width: 60rem;
height: 5rem;
position: absolute;
top: 5rem;
left: 30rem;
}
.message {
width: 56rem;
height: 3rem;
border-radius: 0.5rem;
margin-bottom: 2rem;
padding: 1rem 2rem;
display: flex;
justify-content: center;
align-items: center;
}
.message-icons {
display: inline-block;
font-size: 2rem;
}
.messagebox {
width: 100%;
height: 100%;
display: inline-block;
margin-left: 2rem;
font-size: 1.5rem;
line-height: 3rem;
}
.slide-top-enter-active,
.slide-top-leave-active {
will-change: transform;
transition: all 0.8s;
}
.slide-top-enter {
overflow: hidden;
opacity: 0;
transform: translateY(-100%);
height: 0;
margin-bottom: 0;
padding: 0;
width: 0;
}
.slide-top-leave-to {
overflow: hidden;
opacity: 0;
transform: translateY(-100%);
height: 0;
margin-bottom: 0;
padding: 0;
width: 0;
}
</style>4.在index.js中添加以下代碼
import MESSage from "./message";
var counts = 10;
export default {
install (Vue) {
const MESSage_EXTEND = Vue.extend(MESSage);
const MESSage_CREATE_EL = new MESSage_EXTEND({
el: document.createElement("div"),
});
document.body.appendChild(MESSage_CREATE_EL.$el);
const PUBLIC_FN = {
hexToRgb (hex, opacity = 1) {
return 'rgba(' + parseInt('0x' + hex.slice(1, 3)) + ',' + parseInt('0x' + hex.slice(3, 5))
+ ',' + parseInt('0x' + hex.slice(5, 7)) + ',' + opacity + ') ';
},
success (content) {
const UID = String(counts)
var config = {}
config.uid = UID;
config.color = "#67C23A";
config.background = this.hexToRgb("#e1f3d8");
config.icon = "el-icon-success";
config.borderColor = "#67C23A"
config.content = content;
this.show(config)
},
error (content) {
var config = {}
const UID = String(counts)
config.uid = UID;
config.color = "#F56C6C";
config.background = this.hexToRgb("#fde2e2");
config.icon = "el-icon-error";
config.content = content;
config.borderColor = "#F56C6C"
this.show(config)
},
warning (content) {
var config = {}
const UID = String(counts)
config.uid = UID;
config.color = "#E6A23C";
config.background = this.hexToRgb("#ffdaa4");
config.icon = "el-icon-warning";
config.content = content;
config.borderColor = "#E6A23C"
this.show(config)
},
normal (content) {
var config = {}
const UID = String(counts)
config.uid = UID;
config.color = "#303133";
config.background = this.hexToRgb("#909399");
config.icon = "el-icon-info";
config.content = content;
config.borderColor = "#303133"
this.show(config)
},
self (content, color = "#303133", background = "#909399", icon = "el-icon-info", bgop = 1) {
var config = {}
config.show = true;
config.color = color;
config.background = this.hexToRgb(background, bgop);
config.icon = icon;
config.content = content;
this.show(config)
},
show (config) {
const UID = String(counts)
MESSage_CREATE_EL.uid = UID;
if (MESSage_CREATE_EL.msgOueue.length > 5) {
MESSage_CREATE_EL.msgOueue.shift()
}
console.log(config)
counts++;
MESSage_CREATE_EL.msgOueue.push({ uid: counts, config: config });
setTimeout(() => {
MESSage_CREATE_EL.onClose();
}, 3000)
},
};
Vue.prototype.$message = PUBLIC_FN;
},
};4.在main.js中引入并使用Vue.use方法加載到全局,即可在全局調(diào)用
根據(jù)不同的調(diào)用方法顯示不同的通知欄如下:

Vue3中使用install方法注冊(cè)全局組件
前文說(shuō)到Vue3取消了extends方法,意味著install無(wú)法使用Vue2這一方式來(lái)進(jìn)行自定義組件掛載。
查閱資料可以知道Vue3新增了createApp方法來(lái)創(chuàng)建內(nèi)容,那么我們利用這個(gè)能否實(shí)現(xiàn)這一未掛載組件的功能呢?
1.按上一個(gè)步驟新建文件,message.vue的內(nèi)容也不需要進(jìn)行改變。
2.將index.js的代碼改為以下代碼:
import { createApp } from "vue";
import MESSage from "./message";
var counts = 10;
export default {
install (app) {
// 1.實(shí)例化并綁定組件
const MESSage_EXTEND = createApp(MESSage);
const MESSage_CREATE_EL = MESSage_EXTEND.mount(
document.createElement("div"),
);
document.body.appendChild(MESSage_CREATE_EL.$el);
// 3.調(diào)用顯示的方法
const PUBLIC_FN = {
hexToRgb (hex, opacity = 1) {
return 'rgba(' + parseInt('0x' + hex.slice(1, 3)) + ',' + parseInt('0x' + hex.slice(3, 5))
+ ',' + parseInt('0x' + hex.slice(5, 7)) + ',' + opacity + ') ';
},
success (content) {
const UID = String(counts)
var config = {}
config.uid = UID;
config.color = "#67C23A";
config.background = this.hexToRgb("#e1f3d8");
config.icon = "el-icon-success";
config.borderColor = "#67C23A"
config.content = content;
this.show(config)
},
error (content) {
var config = {}
const UID = String(counts)
config.uid = UID;
config.color = "#F56C6C";
config.background = this.hexToRgb("#fde2e2");
config.icon = "el-icon-error";
config.content = content;
config.borderColor = "#F56C6C"
this.show(config)
},
warning (content) {
var config = {}
const UID = String(counts)
config.uid = UID;
config.color = "#E6A23C";
config.background = this.hexToRgb("#ffdaa4");
config.icon = "el-icon-warning";
config.content = content;
config.borderColor = "#E6A23C"
this.show(config)
},
normal (content) {
var config = {}
const UID = String(counts)
config.uid = UID;
config.color = "#303133";
config.background = this.hexToRgb("#909399");
config.icon = "el-icon-info";
config.content = content;
config.borderColor = "#303133"
this.show(config)
},
self (content, color = "#303133", background = "#909399", icon = "el-icon-info", bgop = 1) {
var config = {}
config.show = true;
config.color = color;
config.background = this.hexToRgb(background, bgop);
config.icon = icon;
config.content = content;
this.show(config)
},
show (config) {
const UID = String(counts)
MESSage_CREATE_EL.uid = UID;
if (MESSage_CREATE_EL.msgOueue.length > 5) {
MESSage_CREATE_EL.msgOueue.shift()
}
console.log(config)
counts++;
MESSage_CREATE_EL.msgOueue.push({ uid: counts, config: config });
setTimeout(() => {
MESSage_CREATE_EL.onClose();
}, 3000)
},
};
// 4.掛載全局
app.config.globalProperties.$message = PUBLIC_FN;
},
};在main.js中使用use方法引入全局使用
import { createApp } from 'vue'
import App from './App.vue'
import message from './utils/plugin/message';
const app = createApp(App);
app.use(message)
app.mount("#app");在測(cè)試案例中使用以下代碼測(cè)試
this.$message.success("成功");
是的沒(méi)錯(cuò),我們?cè)谀7耬lement-ui中的消息通知嘿嘿
總結(jié)
以上為個(gè)人經(jīng)驗(yàn),希望能給大家一個(gè)參考,也希望大家多多支持腳本之家。
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