uniapp实现远程组件加载
前言
在复杂的应用开发中,远程组件加载是一个非常实用的功能。它可以帮助我们实现应用的动态更新、按需加载,从而提升应用性能和用户体验。本文将详细介绍如何在UniApp中实现远程组件的动态加载。
实现原理
具体实现
// components/remote-loader.vue <template> <view class="remote-component"> <component v-if="dynamicComponent" :is="dynamicComponent" v-bind="componentProps" @click="handleClick" @custom-click="handleCustomClick" /> <view v-else-if="loading">加载中...</view> <view v-else-if="error">{{ error }}</view> </view> </template> <script setup> import { ref, watch } from 'vue' import { h, defineComponent, markRaw } from 'vue' // 导入 markRaw const props = defineProps({ componentUrl: String, componentProps: { type: Object, default: () => ({}) } }) const emit = defineEmits(['click', 'custom-click']) const dynamicComponent = ref(null) const loading = ref(false) const error = ref(null) const handleClick = (event) => { emit('click', event) } const handleCustomClick = (data) => { emit('custom-click', data) } async function fetchComponent(url) { const response = await uni.request({ url: url, method: 'GET' }) return response.data } function parseComponent(code) { try { code = code.replace(/\/\*[\s\S]*?\*\/|\/\/.*/g, '') const evalCode = ` var exports = {}; var module = { exports: {} }; ${code}; return module.exports; ` const fn = new Function('require', 'h', evalCode) return fn(null, h) } catch (err) { console.error('Parse error:', err) throw new Error('组件解析失败: ' + err.message) } } async function loadComponent() { if (!props.componentUrl) return loading.value = true error.value = null try { const code = await fetchComponent(props.componentUrl) const componentDef = parseComponent(code) // 使用 markRaw 包装组件定义 dynamicComponent.value = mark...
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