@SuppressWarnings("deprecation")
public String ExpExcel(List<Code> list, String path) {
String filePath = "";
if (list.size() > 0) {
/*第一步，创建一个webbook，对应一个Excel文件*/
HSSFWorkbook wb = new HSSFWorkbook();
/*第二步，在webbook中添加一个sheet,对应Excel文件中的sheet*/
HSSFSheet sheet = wb.createSheet("用户列表");
/*第三步，在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short*/
HSSFRow row = sheet.createRow((int) 0);
/*第四步，创建单元格，并设置值表头 设置表头居中*/
HSSFCellStyle style = wb.createCellStyle();
/*左对齐*/
style.setAlignment(HSSFCellStyle.ALIGN_LEFT);
HSSFCell cell = row.createCell((short) 0);
cell.setCellValue("编码名称");
cell.setCellStyle(style);
cell = row.createCell((short) 1);
cell.setCellValue("描述");
cell.setCellStyle(style);
cell = row.createCell((short) 2);
cell.setCellValue("编码类型");
cell.setCellStyle(style);
cell = row.createCell((short) 3);
cell.setCellValue("状态");
cell.setCellStyle(style);
cell = row.createCell((short) 4);
cell.setCellValue("创建日期");
cell.setCellStyle(style);
/*第五步，写入实体数据 实际应用中这些数据从数据库得到，*/
for (int i = 0; i < list.size(); i++) {
row = sheet.createRow((int) i + 1);
Code model = (Code) list.get(i);
/*第四步，创建单元格，并设置值*/
row.createCell((short) 0).setCellValue(model.getCodeName());
row.createCell((short) 1).setCellValue(model.getDescription());
row.createCell((short) 2).setCellValue(model.getCategory());
row.createCell((short) 3).setCellValue(model.getStatus());
cell = row.createCell((short) 4);
cell.setCellValue(new SimpleDateFormat("yyyy-MM-dd").format(model.getCreateTime()));
}
/*第六步，将文件存到指定位置*/
try {
String fileName = UUID.randomUUID() + ".xls";
String tempFilePath = path + "\\" + fileName;
FileOutputStream fout = new FileOutputStream(tempFilePath);
wb.write(fout);
fout.close();
filePath = tempFilePath;
} catch (Exception e) {
System.out.print(e.getMessage());
}
}
return filePath;
}
