本文主要介紹了Vue3實(shí)現(xiàn)刷新頁面局部內(nèi)容的示例代碼，文中通過示例代碼介紹的非常詳細(xì)，對(duì)大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價(jià)值，需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧

第一步：定義狀態(tài)標(biāo)識(shí)

在全局狀態(tài)中定義一個(gè)isRouterAlive 標(biāo)識(shí)刷新狀態(tài)，根據(jù)isRouterAlive 變化來重新渲染。isLoading 標(biāo)識(shí)加載狀態(tài)。

import { defineStore } from 'pinia'
export const useAppStore = defineStore({
  id: 'app',
  state: () =>
    ({
      isRouterAlive: true,
      isLoading: false
    } as { isRouterAlive: boolean; isLoading: boolean })
})

第二步、借用v-if 指令讓dom節(jié)點(diǎn)重新渲染

<template>
  <div class="common-layout">
    <el-container>
      <SideMenuView :collapse="isCollapse"></SideMenuView>
      <el-container>
        <NavMenuView v-model:collapse="isCollapse"></NavMenuView>
        <TabsView></TabsView>
        <!--核心 start-->
        <el-main
          v-loading="appStore.isLoading"
          element-loading-text="頁面加載中……"
          element-loading-background="rgba(0, 0, 0, 0.8)"
        >
          <router-view v-if="appStore.isRouterAlive"> </router-view>
        </el-main>
        <!--核心 end-->
        <el-footer>Footer</el-footer>
      </el-container>
    </el-container>
  </div>
</template>

<script setup lang="ts">
import SideMenuView from './SideMenuView.vue'
import NavMenuView from './NavMenuView.vue'
import TabsView from './TabsView.vue'
import { useAppStore } from '@/stores/app'
const appStore = useAppStore()
const isCollapse = ref(false)
</script>

<style lang="scss" scoped>
…… CSS樣式
</style>

第三步、修改isRouterAlive 值，實(shí)現(xiàn)dom的重新渲染

<template>
  <div
    class="tabs-item cursor-pointer arrow-down"
    ref="buttonRef"
    @click="onClickOutside"
  >
    <el-icon><ArrowDownBold /></el-icon>
  </div>
  <el-popover
    ref="popoverRef"
    trigger="hover"
    virtual-triggering
    :virtual-ref="buttonRef"
  >
    <div class="arrow-down-item" @click="handleCommand('refresh')">刷新</div>
    <div class="arrow-down-item" @click="handleCommand('closeOther')">
      關(guān)閉其他
    </div>
    <div class="arrow-down-item" @click="handleCommand('closeLeft')">
      關(guān)閉左側(cè)
    </div>
    <div class="arrow-down-item" @click="handleCommand('closeRight')">
      關(guān)閉右側(cè)
    </div>
  </el-popover>
</template>

<script setup lang="ts">
import { CloseBold, ArrowDownBold } from '@element-plus/icons-vue'
import type { MenuItem } from '@/interface/menu'
import { useMenuRouterStore } from '@/stores/menu-router'
import { useTabsStore } from '@/stores/tabs'
import { useAppStore } from '@/stores/app'
const router = useRouter()
const menuRouterStore = useMenuRouterStore()
const tabsStore = useTabsStore()
const appStore = useAppStore()
// tabs功能操作
const buttonRef = ref()
const popoverRef = ref()
const onClickOutside = () => {
  unref(popoverRef).popperRef?.delayHide?.()
}
const handleCommand = (command: string) => {
  if (command === 'refresh') {
    appStore.isLoading = true // 展示數(shù)據(jù)加載狀態(tài)
    appStore.isRouterAlive = false // 設(shè)置為false，卸載dom
    setTimeout(() => { // 此處采用了定時(shí)器，并沒有采用網(wǎng)上比較常見的nextTick
      appStore.isRouterAlive = true // 設(shè)置為true，重新掛載dom
      appStore.isLoading = false // 隱藏?cái)?shù)據(jù)加載狀態(tài)
    }, 500)
  } else if (command === 'closeOther') {
    tabsStore.closeOther()
  } else {
    tabsStore.closeLeftOrRight(command)
  }
}
// ……
</script>

<style lang="scss" scoped>
…… CSS樣式
</style>

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