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+<template>
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+ <el-dialog v-model="dialogVisible" title="批量导入" width="780px" destroy-on-close append-to-body @close="handleClose">
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+ <div class="describe-content">
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+ <div class="title">操作说明：</div>
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+ <div class="step-container">
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+ <el-steps direction="vertical">
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+ <el-step status="process" title="首先点击“模板下载，下载录入模板”。" />
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+ <el-step status="process" :title="'在模板空白处中填写' + stepsText + '。'" />
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+ <el-step status="process" title="通过点击“导入按钮，浏览选择导入文件”，完成导入。" />
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+ <el-step
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+ status="process"
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+ :title="'导入成功，对于系统中没有的' + stepsText + '，进行新增操作对于原本系统已存在的' + stepsText + '，进行信息合并操作。'"
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+ />
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+ </el-steps>
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+ </div>
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+ </div>
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+ <template #footer>
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+ <div class="dialog-footer">
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+ <el-upload
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+ ref="fileUploadRef"
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+ multiple
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+ action="#"
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+ :before-upload="handleBeforeUpload"
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+ :file-list="fileList"
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+ :limit="limit"
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+ :on-error="handleUploadError"
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+ :on-exceed="handleExceed"
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+ :on-success="handleUploadSuccess"
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+ :show-file-list="false"
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+ :headers="headers"
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+ :http-request="uploadFile"
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+ class="upload-file-uploader"
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+ >
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+ <el-button type="primary" :icon="Upload">导入</el-button>
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+ </el-upload>
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+ <el-button type="primary" :icon="Download" style="margin-left: 16px" @click="handleDownload">模板下载</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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+
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+<script lang="ts" setup name="DataImport">
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+import { Upload, Download } from '@element-plus/icons-vue';
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+import { download2, globalHeaders } from '@/utils/request';
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+import { propTypes } from '@/utils/propTypes';
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+import { v1 as uuidv1 } from 'uuid';
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+import axios from 'axios';
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+import { getToken } from '@/utils/auth';
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+import { importDataManagerInfo } from '@/api/dataManagement/dataManagement';
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+
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+const baseUrl = import.meta.env.VITE_APP_BASE_API;
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+const props = defineProps({
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+ modelValue: Boolean,
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+ // 数量限制
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+ limit: propTypes.number.def(1),
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+ // 大小限制(MB)
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+ fileSize: propTypes.number.def(100),
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+ fileType: propTypes.array.def(['xls', 'xlsx']),
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+ stepsText: String,
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+ url: String,
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+ fileName: String,
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+ dataType: String
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+});
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+
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+const { proxy } = getCurrentInstance() as ComponentInternalInstance;
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+const emits = defineEmits(['update:modelValue', 'success']);
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+const dialogVisible = computed({
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+ get() {
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+ return props.modelValue;
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+ },
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+ set(newValue) {
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+ emits('update:modelValue', newValue);
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+ }
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+});
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+
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+const handleClose = () => {
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+ emits('update:modelValue', false);
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+};
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+const number = ref(0);
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+const uploadList = ref<any[]>([]);
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+
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+const headers = ref(globalHeaders());
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+
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+const fileList = ref<any[]>([]);
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+const fileUploadRef = ref<ElUploadInstance>();
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+// 隐藏清空数据
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+watch(
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+ () => props.modelValue,
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+ async (val) => {
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+ if (!val) {
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+ fileList.value = [];
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+ }
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+ },
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+ { deep: true, immediate: true }
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+);
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+
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+// 进入导入界面
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+const handleImport = () => {};
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+// 上传前校检格式和大小
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+const handleBeforeUpload = (file: any) => {
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+ // 校检文件类型
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+ if (props.fileType.length) {
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+ const fileName = file.name.split('.');
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+ const fileExt = fileName[fileName.length - 1];
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+ const isTypeOk = props.fileType.indexOf(fileExt) >= 0;
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+ if (!isTypeOk) {
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+ proxy?.$modal.msgError(`文件格式不正确, 请上传${props.fileType.join('/')}格式文件!`);
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+ return false;
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+ }
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+ }
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+ // 校检文件大小
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+ if (props.fileSize) {
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+ const isLt = file.size / 1024 / 1024 < props.fileSize;
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+ if (!isLt) {
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+ proxy?.$modal.msgError(`上传文件大小不能超过 ${props.fileSize} MB!`);
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+ return false;
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+ }
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+ }
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+ proxy?.$modal.loading('正在上传文件，请稍候...');
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+ number.value++;
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+ return true;
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+};
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+
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+// 文件个数超出
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+const handleExceed = () => {
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+ proxy?.$modal.msgError(`上传文件数量不能超过 ${props.limit} 个!`);
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+};
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+
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+// 上传失败
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+const handleUploadError = () => {
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+ proxy?.$modal.msgError('上传文件失败');
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+};
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+
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+const uploadFile = async ({ data, file }) => {
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+ // data是上传时附带的额外参数，file是文件
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+ let url = baseUrl + '/file/upload/uploadfile'; //上传文件接口
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+ try {
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+ // 如果文件大于等于5MB，分片上传
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+ data.file = file;
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+ const res = await uploadByPieces(url, data);
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+ // 分片上传后操作
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+ return res;
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+ } catch (e) {
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+ return e;
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+ }
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+};
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+//分片上传
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+const uploadByPieces = async (url, { fileName, file }) => {
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+ // 上传过程中用到的变量
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+ const chunkSize = 5 * 1024 * 1024; // 5MB一片
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+ const chunkCount = Math.ceil(file.size / chunkSize); // 总片数
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+ // 获取当前chunk数据
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+ const identifier = uuidv1();
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+ const getChunkInfo = (file, index) => {
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+ let start = index * chunkSize;
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+ let end = Math.min(file.size, start + chunkSize);
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+ let chunknumber = file.slice(start, end);
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+ const fileName = file.name;
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+ return { chunknumber, fileName };
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+ };
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+ // 分片上传接口
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+ const uploadChunk = (data, params) => {
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+ return new Promise((resolve, reject) => {
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+ axios({
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+ url,
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+ method: 'post',
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+ data,
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+ params,
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+ headers: {
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+ 'Content-Type': 'multipart/form-data',
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+ 'Authorization': 'Bearer ' + getToken()
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+ }
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+ })
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+ .then((res) => {
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+ return resolve(res.data);
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+ })
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+ .catch((err) => {
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+ return reject(err);
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+ });
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+ });
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+ };
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+ // 针对单个文件进行chunk上传
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+ const readChunk = (index) => {
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+ const { chunknumber } = getChunkInfo(file, index);
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+ let fetchForm = new FormData();
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+ fetchForm.append('file', chunknumber);
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+ return uploadChunk(fetchForm, {
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+ chunknumber: index,
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+ identifier: identifier
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+ });
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+ };
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+ // 针对每个文件进行chunk处理
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+ const promiseList = [];
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+ try {
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+ for (let index = 0; index < chunkCount; ++index) {
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+ promiseList.push(readChunk(index));
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+ }
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+ await Promise.all(promiseList);
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+ // 文件分片上传完成后，调用合并接口
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+
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+ const res = await mergeChunks(identifier, file.name);
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+ res.originalName = file.name;
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+ const res2 = await importDataManagerInfo(props.dataType, res.filename);
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+ // const res3 = await customUpload(identifier, file.name);
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+ return res;
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+ } catch (e) {
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+ return e;
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+ }
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+};
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+const mergeChunks = async (identifier: string, filename: string) => {
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+ try {
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+ const response = await axios.post(baseUrl + '/file/upload/mergefile', null, {
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+ params: {
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+ identifier: identifier,
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+ filename: filename,
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+ chunkstar: 0 // 假设所有分片的开始序号为0
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+ },
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+ headers: {
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+ 'Authorization': 'Bearer ' + getToken()
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+ }
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+ });
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+
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+ return response.data;
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+ } catch (error) {
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+ throw new Error('合并请求失败');
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+ }
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+};
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+// 上传成功回调
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+const handleUploadSuccess = (res: any, file: UploadFile) => {
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+ if (res && res.code === 200) {
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+ uploadList.value.push({
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+ name: res.originalName,
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+ url: res.filename
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+ });
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+ uploadedSuccessfully();
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+ proxy.$modal.msgSuccess('导入成功');
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+ emits('update:modelValue', false);
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+ emits('success');
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+ } else {
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+ number.value--;
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+ proxy?.$modal.closeLoading();
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+ proxy?.$modal.msgError(res.msg);
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+ fileUploadRef.value?.handleRemove(file);
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+ uploadedSuccessfully();
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+ proxy.$modal.msgError('导入失败');
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+ }
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+};
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+
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+// 上传结束处理
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+const uploadedSuccessfully = () => {
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+ if (number.value > 0 && uploadList.value.length === number.value) {
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+ fileList.value = fileList.value.filter((f) => f.url !== undefined).concat(uploadList.value);
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+ uploadList.value = [];
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+ number.value = 0;
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+ proxy?.$modal.closeLoading();
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+ }
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+};
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+
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+// 下载模板
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+const handleDownload = () => {
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+ if (!props.url) return false;
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+ let downLoadUrl = baseUrl + props.url;
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+ download2(downLoadUrl, props.fileName);
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+};
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+</script>
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+
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+<style lang="scss" scoped>
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+.title {
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+ font-size: 18px;
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+ line-height: 36px;
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+ margin-bottom: 10px;
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+ color: rgba(0, 0, 0, 0.85);
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+}
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+.step-container {
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+ width: 700px;
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+ height: 180px;
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+ :deep(.el-step) {
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+ .el-step__icon.is-text {
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+ border-color: #a8abb2;
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+ color: rgba(0, 0, 0, 0.85);
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+ }
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+ .el-step__title.is-process {
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+ font-size: 16px;
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+ color: rgba(0, 0, 0, 0.85);
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+ font-weight: normal;
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+ }
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+ }
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+}
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+.upload-file-list .el-upload-list__item {
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+ line-height: 22px;
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+ margin-bottom: 10px;
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+ position: relative;
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+ padding: 3px 5px;
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+}
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+
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+.upload-file-list .ele-upload-list__item-content {
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+ display: flex;
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+ align-items: center;
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+ color: inherit;
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+}
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+
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+.ele-upload-list__item-content-action .el-link {
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+ margin-right: 10px;
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+}
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+</style>
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