Springmvc文件下载

工具类：

public class ExcelUtils {

public static WritableWorkbook createTemplate(OutputStream output) throws IOException, WriteException {

WritableWorkbook writableWorkbook= Workbook.createWorkbook(output);

WritableSheet wsheet = writableWorkbook.createSheet(“模板”, 0);

CellFormat cf = writableWorkbook.getSheet(0).getCell(1, 0).getCellFormat();
WritableCellFormat wc = new WritableCellFormat();
// 设置居中
wc.setAlignment(Alignment.CENTRE);
// 设置边框线

// wc.setBorder(Border.ALL, BorderLineStyle.THIN);

wc.setBackground(jxl.format.Colour.GREEN);

Label nc0 = new Label(0, 0, "姓名",wc);//Label(x,y,z)其中x代表单元格的第x+1列，第y+1行, 单元格的内容是z
Label nc1 = new Label(1, 0, "性别",wc);
Label nc2 = new Label(2, 0, "年龄",wc);
Label nc3 = new Label(0, 1, "小红");
Label nc4 = new Label(1, 1, "男");

wsheet.addCell(nc0);
wsheet.addCell(nc1);
wsheet.addCell(nc2);
wsheet.addCell(nc3);
wsheet.addCell(nc4);

return writableWorkbook;
}

}

controller类：

@Controller

public class DownloadController {

@RequestMapping(“download”)

public void download(HttpServletRequest request, HttpServletResponse response)

throws IOException, BiffException, WriteException {

response.setHeader(“Content-Disposition”, “attachment; filename=template.xxls”);

WritableWorkbook writableWorkbook =

ExcelUtils.createTemplate(response.getOutputStream());

writableWorkbook.write();

writableWorkbook.close();

}

}