/**
* 描述:下载外部案件导入模板
* @param response
* @param request
* @author songfayuan
* 2018年6月7日下午5:03:59
*/
@RequestMapping("/downloadExcel")
@ResponseBody
public void downloadExcel(HttpServletResponse response,HttpServletRequest request) {
//方法一:直接下载路径下的文件模板
try {
//获取要下载的模板名称
String fileName = "ApplicationImportTemplate.xlsx";
//设置要下载的文件的名称
response.setHeader("Content-disposition", "attachment;fileName=" + fileName);
//通知客服文件的MIME类型
response.setContentType("application/vnd.ms-excel;charset=UTF-8");
//获取文件的路径
String filePath = getClass().getResource("/template/" + fileName).getPath();
FileInputStream input = new FileInputStream(filePath);
OutputStream out = response.getOutputStream();
byte[] b = new byte[2048];
int len;
while ((len = input.read(b)) != -1) {
out.write(b, 0, len);
}
//修正 Excel在“xxx.xlsx”中发现不可读取的内容。是否恢复此工作薄的内容?如果信任此工作簿的来源,请点击"是"
response.setHeader("Content-Length", String.valueOf(input.getChannel().size()));
input.close();
//return Response.ok("应用导入模板下载完成");
} catch (Exception ex) {
logger.error("getApplicationTemplate :", ex);
//return Response.ok("应用导入模板下载失败!");
}
/*String excelPath = request.getSession().getServletContext().getRealPath("/excel/"+"案件导入模板【空白】.xlsx");
try {
FileDownload.fileDownload(response, excelPath, "案件导入模板【空白】.xlsx");
} catch (Exception e) {
logger.error("外部案件导入模板下载失败");
e.printStackTrace();
}
//方法二:可以采用POI导出excel,但是比较麻烦
/*try {
Workbook workbook = new HSSFWorkbook();
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("application/x-download");
String filedisplay = "外部案件导入模板.xls";
filedisplay = URLEncoder.encode(filedisplay, "UTF-8");
response.addHeader("Content-Disposition", "attachment;filename="+ filedisplay);
// 第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
Sheet sheet = workbook.createSheet("外部案件导入模板");
// 第三步,在sheet中添加表头第0行
Row row = sheet.createRow(0);
// 第四步,创建单元格,并设置值表头 设置表头居中
CellStyle style = workbook.createCellStyle();
style.setAlignment(CellStyle.ALIGN_CENTER); // 创建一个居中格式
Cell cell = row.createCell(0);
cell.setCellValue("商品名称");
cell.setCellStyle(style);
sheet.setColumnWidth(0, (25 * 256)); //设置列宽,50个字符宽
cell = row.createCell(1);
cell.setCellValue("商品编码");
cell.setCellStyle(style);
sheet.setColumnWidth(1, (20 * 256)); //设置列宽,50个字符宽
cell = row.createCell(2);
cell.setCellValue("商品价格");
cell.setCellStyle(style);
sheet.setColumnWidth(2, (15 * 256)); //设置列宽,50个字符宽
cell = row.createCell(3);
cell.setCellValue("商品规格");
cell.setCellStyle(style);
sheet.setColumnWidth(3, (15 * 256)); //设置列宽,50个字符宽
// 第五步,写入实体数据 实际应用中这些数据从数据库得到
row = sheet.createRow(1);
row.createCell(0, Cell.CELL_TYPE_STRING).setCellValue(1);
row.createCell(1, Cell.CELL_TYPE_STRING).setCellValue(2);
row.createCell(2, Cell.CELL_TYPE_STRING).setCellValue(3); //商品价格
row.createCell(3, Cell.CELL_TYPE_STRING).setCellValue(4); //规格
// 第六步,将文件存到指定位置
try
{
OutputStream out = response.getOutputStream();
workbook.write(out);
out.close();
}
catch (Exception e)
{
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}*/
}
模板位置: