/**
* 通过excel导入数据
*
* @param request
* @param response
* @return
*/
@RequestMapping(value = "/importExcel", method = RequestMethod.POST)
public Result importExcel(HttpServletRequest request, HttpServletResponse response) {
return super.importExcel(request, response, PunchCard.class);
}
/**
* 通过excel导入数据
*
* @param request
* @param response
* @return
*/
protected Result importExcel(HttpServletRequest request, HttpServletResponse response, Class clazz) {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
Map fileMap = multipartRequest.getFileMap();
for (Map.Entry entity : fileMap.entrySet()) {
MultipartFile file = entity.getValue();// 获取上传文件对象
ImportParams params = new ImportParams();
params.setTitleRows(2);
params.setHeadRows(1);
params.setNeedSave(true);
try {
List list = ExcelImportUtil.importExcel(file.getInputStream(), clazz, params);
//update-begin-author:taoyan date:20190528 for:批量插入数据
long start = System.currentTimeMillis();
service.saveBatch(list);
//400条 saveBatch消耗时间1592毫秒 循环插入消耗时间1947毫秒
//1200条 saveBatch消耗时间3687毫秒 循环插入消耗时间5212毫秒
log.info("消耗时间" + (System.currentTimeMillis() - start) + "毫秒");
//update-end-author:taoyan date:20190528 for:批量插入数据
return Result.ok("文件导入成功！数据行数：" + list.size());
} catch (Exception e) {
log.error(e.getMessage(), e);
return Result.error("文件导入失败:" + e.getMessage());
} finally {
try {
file.getInputStream().close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return Result.error("文件导入失败！");
}
读txt是最基本的功能了
定义一个File对象就读文本了
不需要引入任何dll