本项目要求：用户下载excel模板，填写资料后上传

模板保存在项目文件中，使用a标签点击下载

html

         <el-uploadv-model:file-list="fileList":before-upload="beforeUpload":limit="1":on-exceed="handleExceed":show-file-list="false"><el-button size="small" type="primary"><vab-icon icon="file-excel-2-line" />导入EXCEL</el-button></el-upload><el-button size="small" type="primary"><vab-icon icon="download-2-line" /><adownload="收款导入模板"href="./static/collection.xls"style="color: #ffffff">下载模板</a></el-button>

上传功能：

export function importExcelDetail(file) {return request({url: '/api/v1/pri/cost-master/import-excel-detail',method: 'post',data: {files: [file],},})
}

      const beforeUpload = (file) => {importExcelDetail(file).then((res) => {if (res.code === 200) {$baseMessage('导入成功！', 'success')fetchData()}})}const handleExceed = () => {ElMessage.warning('只能选择一个文件')}