ruoyi导入导出Excel
作者：互联网
ruoyi导入导出Excel
导入导出excel：使用若依自带的工具ExcelUtil；(例子：SysUserController)
导入之前需要生成一个excel模板给用户填写（前端通过接口获取模板名字，再调用下载接口common/download，进行下载）；
导入业务根据若依的SysUserServiceImpl的“导入用户数据”进行复制修改，我这里的更新数据库操作写固定更新；
导出业务根据学校ID导出，输入学校ID查不到时返回查到的数据为空，而不会生成excel空表（前端通过接口获取文件名，再调用下载接口common/download，进行下载）。
这里只给出Controller层的代码，ServiceImpl可以仿照若依自带的SysUserServiceImpl。
学生模板Controller
/**
* 学生模板
**/
@ApiOperation(value = "学生Excel模板", notes = "学生Excel模板")
@GetMapping("/importStuTemplate")
public Result importStuTemplate()
{
ExcelUtil<StuEpiRequest> util = new ExcelUtil<StuEpiRequest>(StuEpiRequest.class);
return util.importTemplateExcelResult("学生模板");
}
导入Controller
/**
* 导入excel信息
*
* @author makejava
* @date 2022-07-12 16:01:38
**/
@ApiOperation(value = "导入excel信息", notes = "导入职工excel信息")
@ApiImplicitParams({
@ApiImplicitParam(name = "CompanyId", value = "学校id", paramType = "query", dataType = "Long"),
@ApiImplicitParam(name = "CompanyName", value = "学校名称", paramType = "query", dataType = "String"),
@ApiImplicitParam(name = "Type", value = "身份，0是学生，1是教职工", paramType = "query", dataType = "String"),
// @ApiImplicitParam(name = "isUpdateSupport", value = "支持更新，0是不支持，1是支持", paramType = "query", dataType = "String"),
})
@PostMapping("/import")
public Result importExcel (@RequestPart("file") MultipartFile file ,@Valid EpiPreModel epiPreModel) throws Exception {
ExcelUtil<EpiPreModel> util = new ExcelUtil<EpiPreModel>(EpiPreModel.class);
List<EpiPreModel> epiList = util.importExcel(file.getInputStream());
String message = epiPreService.importExcel(epiList,epiPreModel);
return Result.success(message);
}
导出Controller
/**
* 导出学生excel信息
**/
@ApiOperation(value = "导出学生excel信息", notes = "导出学生excel信息")
@ApiImplicitParam(name = "companyId", value = "学校id", paramType = "query", dataType = "Long")
@GetMapping("/stuExport/{companyId}")
public Result stuExport(@PathVariable Long companyId) {
List<StuEpiResponse> list = epiPreService.exportStuExcel(companyId);
if (StringUtils.isEmpty(list)){
return Result.failed("根据学校id查得数据为空");
}
ExcelUtil<StuEpiResponse> util = new ExcelUtil<StuEpiResponse>(StuEpiResponse.class);
return util.exportExcelResult(list,"学生表","学生表");
}
common/download
package com.ruoyi.web.controller.common;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.ruoyi.common.utils.MD5Utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;
/**
* 通用请求处理
*
* @author ruoyi
*/
@RestController
public class CommonController
{
private static final Logger log = LoggerFactory.getLogger(CommonController.class);
@Autowired
private ServerConfig serverConfig;
/**
* 通用下载请求
*
* @param fileName 文件名称
* @param delete 是否删除
*/
@GetMapping("common/download")
public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
{
try
{
if (!FileUtils.checkAllowDownload(fileName))
{
throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
}
String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
String filePath = RuoYiConfig.getDownloadPath() + fileName;
response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
FileUtils.setAttachmentResponseHeader(response, realFileName);
FileUtils.writeBytes(filePath, response.getOutputStream());
if (delete==null||delete)
{
FileUtils.deleteFile(filePath);
}
}
catch (Exception e)
{
log.error("下载文件失败", e);
}
}
/**
* 通用上传请求
*/
@PostMapping("/common/upload")
public AjaxResult uploadFile(MultipartFile file) throws Exception
{
try
{
//文件md5
String md5 = MD5Utils.calcMD5(file.getInputStream());
// 上传文件路径
String filePath = RuoYiConfig.getUploadPath();
// 上传并返回新文件名称
String fileName = FileUploadUtils.upload(filePath, file);
String url = serverConfig.getUrl() + fileName;
AjaxResult ajax = AjaxResult.success();
ajax.put("fileName", fileName);
ajax.put("url", url);
ajax.put("md5",md5);
return ajax;
}
catch (Exception e)
{
return AjaxResult.error(e.getMessage());
}
}
/**
* 本地资源通用下载
*/
@GetMapping("/common/download/resource")
public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
throws Exception
{
try
{
if (!FileUtils.checkAllowDownload(resource))
{
throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
}
// 本地资源路径
String localPath = RuoYiConfig.getProfile();
// 数据库资源地址
String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
// 下载名称
String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
FileUtils.setAttachmentResponseHeader(response, downloadName);
FileUtils.writeBytes(downloadPath, response.getOutputStream());
}
catch (Exception e)
{
log.error("下载文件失败", e);
}
}
}
标签：String,Excel,ruoyi,fileName,导入,common,import,com 来源： https://www.cnblogs.com/SjhCode/p/excel.html