lcw
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<!-- 文件上传导入组件 -->
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<template>
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<el-dialog v-model="modelValue" :title="title" :width="width" top="5vh" @close="close" append-to-body>
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<!-- 上传区域 -->
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<div class="upload-section">
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<el-upload class="upload-demo" drag :auto-upload="false" :limit="1" :file-list="fileList"
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:before-upload="beforeUpload" :on-change="handleFileChange" :on-exceed="handleExceed">
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<el-icon class="el-icon--upload"><upload-filled /></el-icon>
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<div class="el-upload__text">
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<em>点击或拖拽文件到此处上传</em>
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</div>
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<template #tip>
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<div class="el-upload__tip">
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只能上传 xlsx/xls 文件，且不超过 {{ fileSizeLimit }}MB
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</div>
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</template>
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</el-upload>
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<!-- 操作按钮 -->
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<div class="upload-actions">
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<el-button type="primary" @click="handleImport" :disabled="!canImport">导入数据</el-button>
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<el-button @click="handleTemplate">下载模板</el-button>
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</div>
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</div>
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<!-- 数据预览区域 -->
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<div v-if="previewData.length > 0" class="preview-section">
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<h4 style="margin-bottom: 16px;">数据预览</h4>
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<el-table :data="previewData" style="width: 100%;" :max-height="300">
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<el-table-column v-for="col in tableColumns" :key="col.prop" :prop="col.prop" :label="col.label"
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show-overflow-tooltip></el-table-column>
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</el-table>
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</div>
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<!-- 加载状态 -->
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<!-- <el-dialog v-model="loadingVisible" title="导入中" :show-close="false">
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<div style="text-align: center; padding: 20px;">
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<el-loading :fullscreen="false" text="正在处理数据，请稍候..." :visible="true"></el-loading>
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</div>
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</el-dialog> -->
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<!-- <template #footer>
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<div class="dialog-footer">
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<el-button @click="close">关闭</el-button>
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</div>
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</template> -->
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</el-dialog>
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</template>
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<script setup>
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import * as XLSX from 'xlsx'
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import { ref, computed, defineProps, defineEmits } from 'vue'
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import { UploadFilled } from '@element-plus/icons-vue'
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import { ElMessage } from 'element-plus'
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import { qcckPost } from '@/api/qcckApi'
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// Props 定义
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const props = defineProps({
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modelValue: {
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type: Boolean,
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default: false
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},
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width: {
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type: String,
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default: '30%'
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},
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title: {
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type: String,
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default: '导入数据'
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},
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// 文件大小限制(MB)
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fileSizeLimit: {
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type: Number,
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default: 10
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},
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// 表格列配置
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tableColumns: {
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type: Array,
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default: () => []
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},
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// 模板下载地址
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templateUrl: {
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type: String,
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default: ''
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},
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// 图标地址
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aiconUrl: {
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type: String,
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default: ''
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},
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isUrl: {
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type: Boolean,
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default: false
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}
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})
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// Emits 定义
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const emit = defineEmits(['update:modelValue', 'import-success', 'import-error', 'vSocial'])
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// 响应式数据
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const fileList = ref([])
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const previewData = ref([])
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const loadingVisible = ref(false)
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// 计算属性：是否可以导入
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const canImport = computed(() => {
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return fileList.value.length > 0 && !loadingVisible.value
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})
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// 关闭对话框
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const close = () => {
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resetState()
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emit('update:modelValue', false)
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}
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// 重置状态
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const resetState = () => {
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fileList.value = []
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previewData.value = []
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loadingVisible.value = false
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}
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// 处理文件选择变化
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const handleFileChange = (file) => {
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// 清空之前的预览数据
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previewData.value = []
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// 只保留最后一个文件
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fileList.value = [file]
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// 读取文件内容进行预览
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const reader = new FileReader()
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reader.onload = (e) => {
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try {
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const data = e.target.result
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const workbook = XLSX.read(data, { type: 'binary' })
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const firstSheetName = workbook.SheetNames[0]
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const worksheet = workbook.Sheets[firstSheetName]
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// 转换为JSON数据
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const jsonData = XLSX.utils.sheet_to_json(worksheet)
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// 如果有表格列配置，过滤和格式化数据
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if (props.tableColumns && props.tableColumns.length > 0) {
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previewData.value = jsonData.slice(0, 10).map(row => {
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const formattedRow = {}
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props.tableColumns.forEach(col => {
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formattedRow[col.prop] = row[col.label] !== undefined ? row[col.label] : row[col.prop]
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})
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return formattedRow
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})
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} else {
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// 否则直接使用前10条数据作为预览
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previewData.value = jsonData.slice(0, 10)
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}
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} catch (error) {
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ElMessage.error('文件解析失败，请检查文件格式')
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console.error('文件解析错误:', error)
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}
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}
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reader.readAsBinaryString(file.raw)
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}
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// 上传前校验
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const beforeUpload = (file) => {
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const isExcel = file.type === 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' ||
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file.type === 'application/vnd.ms-excel'
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const isLtLimit = file.size / 1024 / 1024 < props.fileSizeLimit
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if (!isExcel) {
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ElMessage.error('只能上传 Excel 文件！')
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return false
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}
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if (!isLtLimit) {
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ElMessage.error(`文件大小不能超过 ${props.fileSizeLimit}MB！`)
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return false
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}
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return true
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}
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// 处理文件超出限制
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const handleExceed = () => {
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ElMessage.error('只能上传一个文件')
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}
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// 处理导入
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const handleImport = async () => {
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if (!fileList.value[0]) {
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ElMessage.warning('请先选择文件')
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return
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}
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loadingVisible.value = true
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try {
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// 创建FormData对象
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const formData = new FormData()
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formData.append('file', fileList.value[0].raw)
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if (props.isUrl && props.aiconUrl) {
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// 调用上传接口
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qcckPost(formData, props.aiconUrl).then(res => {
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emit('import-success', res)
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close()
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}).catch(error => {
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ElMessage.error(error.message || '文件上传失败')
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emit('import-success', null)
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loadingVisible.value = false
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})
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} else {
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// 如果没有配置上传接口，只解析文件并返回数据
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const reader = new FileReader()
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reader.onload = (e) => {
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try {
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const data = e.target.result
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const workbook = XLSX.read(data, { type: 'binary' })
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const firstSheetName = workbook.SheetNames[0]
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const worksheet = workbook.Sheets[firstSheetName]
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const jsonData = XLSX.utils.sheet_to_json(worksheet)
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emit('import-success', { data: jsonData })
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close()
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} catch (error) {
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throw error
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}
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}
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reader.readAsBinaryString(fileList.value[0].raw)
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}
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} catch (error) {
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ElMessage.error(error.message || '导入失败')
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emit('import-error', error)
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loadingVisible.value = false
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}
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}
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// 处理模板下载
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const handleTemplate = () => {
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if (props.templateUrl) {
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window.open(props.templateUrl, '_blank')
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} else {
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// 如果没有提供模板下载地址，根据列配置生成简单模板
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try {
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const wb = XLSX.utils.book_new()
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// 创建表头数据
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const headerData = []
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if (props.tableColumns && props.tableColumns.length > 0) {
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const headerRow = {}
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props.tableColumns.forEach(col => {
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headerRow[col.prop] = col.label
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})
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headerData.push(headerRow)
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}
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const ws = XLSX.utils.json_to_sheet(headerData)
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XLSX.utils.book_append_sheet(wb, ws, '模板')
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// 下载模板
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XLSX.writeFile(wb, '导入模板.xlsx')
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} catch (error) {
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ElMessage.error('模板生成失败')
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}
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}
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}
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</script>
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<style scoped>
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.upload-section {
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padding: 20px 0;
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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.upload-demo {
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width: 100%;
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max-width: 600px;
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}
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.upload-actions {
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margin-top: 20px;
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text-align: center;
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}
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.upload-actions .el-button {
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margin: 0 10px;
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}
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.preview-section {
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margin-top: 20px;
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border-top: 1px solid #ebeef5;
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padding-top: 20px;
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width: 100%;
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max-width: 1000px;
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align-self: center;
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margin-left: auto;
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margin-right: auto;
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}
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.el-table {
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font-size: 14px;
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}
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</style>
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