利用easypoi把数据导出：
1、引入easypoi包
<!-- https://mvnrepository.com/artifact/org.jeecg/easypoi-base --> <dependency> <groupId>org.jeecg</groupId> <artifactId>easypoi-base</artifactId> <version>2.4.0</version> </dependency>
2、导出数据实体类
@ExcelTarget("Data")
public class Data {
@Excel(name=" ")
private Integer id;
@Excel(name="标题")
private String title;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
3、
@GetMapping("/data")
public void data(HttpServletResponse response, String ids, OutputStream os) throws Exception {
List lists = new ArrayList();
if (!Assert.isEmpty(idsStr)) {
String[] ids = idsStr.split(",");
List list = ***.exportByIds(ids);
for(int i = 0;i<list.size();i++) {
Data data = new Data();
data.setId(i+1);
data.setTitle(list.get(i).getTitle());
lists.add(data);
}
}
//定义导出参数
ExportParams params = new ExportParams();
params.setTitle("设置表头");
Workbook workbook = ExcelExportUtil.exportExcel(params, CollectFile_export.class, lists);
String fname = "文件名"+ DateUtil.dateToString("yyyy-MM-dd", new Date());
fname = URLEncoder.encode(fname,"UTF-8");
response.reset();//清空输出流
response.setCharacterEncoding("UTF-8");//设置相应内容的编码格式
response.setHeader("Content-Disposition","attachment;filename="+new String(fname.getBytes("UTF-8"),"GBK")+".xls");
response.setContentType("application/msexcel");//定义输出类型
//将文件写入输出流
workbook.write(os);
workbook.close();
os.close();
}
数据导入
@RequestMapping("admin/data")
@ResponseBody
public ReturnBean enterprise_export_insert(HttpServletRequest request, @RequestParam("excelFile") MultipartFile file) {
ReturnBean rb;
// 导入参数设置
ImportParams params = new ImportParams();
params.setTitleRows(0);
params.setHeadRows(1);
params.setNeedSave(false);
try {
List<Enterprise_export> dataList = ExcelImportUtil.importExcel(file.getInputStream(), Enterprise_export.class, params);
System.out.println(dataList);
enterpriseService.insertExport(dataList);
rb = ReturnBean.getSuccessReturnBean();
} catch (Exception e) {
rb = ReturnBean.getErrorReturnBean();
}
return rb;
}
