一 导出
<a-button @click="exportDataList" icon="download" type="success" style="margin-right: 8px">导出数据</a-button>
//导出表格
exportDataList () {
//导出表格的查询条件
this.queryParam.type = this.activeKey
//导出
exportData(this.queryParam).then(res => {
//创建二进制数据对象
const blbo = new Blob([res], { type: 'application/vnd.ms-excel;charset=utf-8' })
//创建a标签
const link = document.createElement('a')
//创建一个指向二进制文件的URL
link.href = window.URL.createObjectURL(blbo)
//文件名
link.download = '物流公司信息.xls'
//触发下载
link.click()
})
},
/**
* 导出物流公司信息
*
* @param fisLogisticsCompanyInfo 导出实体类
* @param commonQuery //查询参数
* @param response //http响应
*/
@SneakyThrows
@GetMapping("/logisticsCompany/export")
@ApiOperation(value = "导出物流公司信息")
public void export(FisLogisticsCompanyInfo fisLogisticsCompanyInfo, CommonQuery commonQuery, HttpServletResponse response) {
//导出的查询条件
QueryWrapper<FisLogisticsCompanyInfo> autoQueryWrapper = QueryGenerator.initQueryWrapper(fisLogisticsCompanyInfo, commonQuery);
//查询出所有要导出的数据
List<FisLogisticsCompanyInfo> fisLogisticsCompanyInfos = fisLogisticsCompanyInfoService.list(autoQueryWrapper);
//利用导出工具类将数据导出
Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams("物流公司信息", "container"),
FisLogisticsCompanyInfo.class, fisLogisticsCompanyInfos);
//写道输出流
workbook.write(response.getOutputStream());
}
二 下载导入
//导入向导按钮 点击调用importData方法
<a-button @click="importData" icon="upload" style="margin-right: 8px" type="plain">导入向导</a-button>
//触发组件的show方法 展示文件上传页面
importData () {
this.$refs.BImportFile.show()
},
//当前页面使用了文件上传组件
<b-import-file @ok="queryPage" :actionUrl="actionUrl" :des="des" ref="BImportFile" @download="download"/>
//引入文件上传组件
import BImportFile from '@/components/BImportFile'
//注册到组件
components: {
MESSuperQuery,
modalForm,
BImportFile //封装好的导入组件
},
//点击组件的下载导入模板 触发组件的download
<div @click='download' class='upload-dragger'>
<a-upload-dragger
:headers='headers'
:multiple='true'
:openFileDialogOnClick='false'
@change='handleChange'
action='/api/storage/upload'
name='file'
>
<p class='ant-upload-drag-icon'>
<a-icon type='cloud-download' />
</p>
<p class='ant-upload-text'>先下载要上传的模板</p>
<p class='ant-upload-hint'>
支持扩展名：xls,xlsx
</p>
</a-upload-dragger>
</div>
//向父组件传递事件
download() {
this.$emit('download')
},
//父组件接受子组件传来的事件 下载excel模板
download () {
logisticsCompanyTemplate().then(res => {
//创建二进制数据对象
const blbo = new Blob([res], { type: 'application/vnd.ms-excel;charset=utf-8' })
//创建a标签
const link = document.createElement('a')
//创建一个指向二进制文件的URL
link.href = window.URL.createObjectURL(blbo)
link.download = '物流公司导入模板.xlsx'
//点击a标签
link.click()
}).catch((e) => {
this.$message.warning('下载失败')
})
},
/**
* 下载物流公司导入模板
*
* @return
*/
@SneakyThrows
@GetMapping("/logisticsCompany/template")
@ApiOperation(value = "物流公司导入模板")
public void downTemplate(HttpServletResponse response) {
//获取数据库中模板文件名称
String rfidTemplate = Global.getConfig("logisticsCompanyTemplate");
//获取bucketName 默认bootfile
String bucketName = Global.getConfig("sys.file.bucketName", "bootfile");
//根据buckName和文件名称返回二进制流
S3Object object = minioTemplate.getObject(bucketName, rfidTemplate);
IoUtil.copy(object.getObjectContent(), response.getOutputStream());
}
三 导入
<div
class='upload-dragger'
>
<a-upload-dragger
:beforeUpload='beforeFileUpload'
:fileList='fileList'
:headers='headers'
:multiple='true'
@change='handleChange'
:action='actionUrl'
name='file'
>
<p class='ant-upload-drag-icon'>
<a-icon type='cloud-upload' />
</p>
<p class='ant-upload-text'>上传要导入的文件</p>
<p class='ant-upload-hint'>
支持扩展名：xls,xlsx
</p>
</a-upload-dragger>
</div>
/**
* 导入物流公司信息
*
* @param file
* @return
*/
@SneakyThrows
@PostMapping("/uploadBom")
public Result upload(@RequestParam("file") MultipartFile file) {
List<FisLogisticsCompanyInfo> logisticsCompanyInfoList = FileUtil.importExcel(file, 0, 1, FisLogisticsCompanyInfo.class);
logisticsCompanyInfoList = logisticsCompanyInfoList.stream().map(fisLogisticsCompanyInfo -> {
fisLogisticsCompanyInfo.setUpdateBy(SecurityUtil.getUser().getUserId());
fisLogisticsCompanyInfo.setCreateBy(SecurityUtil.getUser().getUserId());
fisLogisticsCompanyInfo.setUpdateTime(new Date());
fisLogisticsCompanyInfo.setCreateTime(new Date());
return fisLogisticsCompanyInfo;
}).collect(Collectors.toList());
fisLogisticsCompanyInfoService.saveBatch(logisticsCompanyInfoList);
return Res.ok();
}
public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass) {
if (file == null) {
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
List<T> list = null;
ZipSecureFile.setMinInflateRatio(-1.0d);
try {
list = ExcelImportUtil.importExcel(file.getInputStream(), pojoClass, params);
} catch (NoSuchElementException e) {
// System.out.println("excel文件不能为空");
throw new NoSuchElementException("excel文件不能为空");
} catch (Exception e) {
System.out.println(e.getMessage());
// throw new NormalException();
throw new NoSuchElementException(e.getMessage());
}
return list;
}