Question

我正在尝试使用spring hibernate将mysql表中的数据导出为excel。我的excel导出在导出后没有数据。我们将不胜感激。这是我的代码。谢谢提前

ExcelExport.java

@Override
protected void buildExcelDocument(Map<String, Object> model,
HSSFWorkbook workbook, HttpServletRequest request, HttpServletResponse response)
throws Exception {
@SuppressWarnings("unchecked")
List<MOH> mohs = (List<MOH>) model.get("mohs");
HSSFSheet sheet = workbook.createSheet("MOH Form")
HSSFRow header = sheet.createRow(0);

header.createCell(0).setCellValue("ID");
header.getCell(0).setCellStyle(style);
header.createCell(1).setCellValue("Data");
header.getCell(1).setCellStyle(style);

int rowCount = 1;         
    for (MOH aBook : mohs) {
        HSSFRow aRow = sheet.createRow(rowCount++);
        aRow.createCell(0).setCellValue(aBook.getSurvey_id());
        aRow.createCell(1).setCellValue(aBook.getName());

Controller.java

@RequestMapping(value = "/downloadExcel", method = RequestMethod.GET)
public ModelAndView downloadExcel() {
ModelAndView mav = new ModelAndView("showMOH");
List<MOH> mohs = new ArrayList<MOH>();
return new ModelAndView("excelView", "mohs", mohs);

Answer 1

可能有更多选择： - 1.使用hibernate，您可以使用Apache POI执行此操作。这是tutorial with example，将指导您完成整个过程 2.您还可以使用BIRT并将数据库生成为您想要的任何格式。
3.您可以使用ResultSet将数据直接从MySQL导出到Excel。见how to export ResultSet to Excel。
4.如果您使用struts2，可以使用datagrid将其导出为CSV或Excel。

Answer 2

它的工作

在您的控制器中

@RequestMapping(value = "/downloadExcel", method = RequestMethod.GET)
public ModelAndView downloadExcel(Model model) {

    List<String> usersGateways = uDAO.GetGwRoleUser();

    List<User> users = gatewayManagedDAO.findAll();
    return new ModelAndView(new ExcelView(), "users ", users );
    }
}

在ExcelView中

public class ExcelView extends AbstractXlsView{

@Override
public void buildExcelDocument(Map<String, Object> model, Workbook workbook, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    // TODO Auto-generated method stub


    // change the file name
    response.setHeader("Content-Disposition", "attachment; filename=\"my-exported-file.xls\"");

    @SuppressWarnings("unchecked")
    List<User> users= (List<GatewayManage>) model.get("users");

    // create excel xls sheet
    Sheet sheet = workbook.createSheet("Users Detail");
    sheet.setDefaultColumnWidth(30);

    // create style for header cells
    CellStyle style = workbook.createCellStyle();
    Font font = workbook.createFont();
    font.setFontName("Arial");
    style.setFillForegroundColor(HSSFColor.BLUE.index);
    //style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
    //font.setBold(true);
    font.setColor(HSSFColor.BLACK.index);
    style.setFont(font);


    // create header row
    Row header = sheet.createRow(0);
    header.createCell(0).setCellValue("First Name");
    header.getCell(0).setCellStyle(style);
    header.createCell(1).setCellValue("Last Name");
    header.getCell(1).setCellStyle(style);
    header.createCell(2).setCellValue("Number");
    header.getCell(2).setCellStyle(style);
    header.createCell(3).setCellValue("Age");
    header.getCell(3).setCellStyle(style);



    int rowCount = 1;
    for(User user : users){
        Row userRow =  sheet.createRow(rowCount++);
        gatewayRow.createCell(0).setCellValue(user.getFirstName());
        gatewayRow.createCell(1).setCellValue(gateway.getLastName());
        gatewayRow.createCell(2).setCellValue(gateway.getNumber());
        gatewayRow.createCell(3).setCellValue(gateway.getAge());

        }

}
}

你可以用你的（Studen，aBook ....）替换我的用户类，这样就可以了！

使用spring hibernate将mysql表导出为excel

2 个答案:

使用spring hibernate将mysql表导出为ex​​cel

2 个答案:

使用spring hibernate将mysql表导出为excel