导入excel格式的文件并写入到数据库中

//service层的方法

public String importXls(File file, String fileName, String contentType, String enterId) throws Exception{

Enter enter = enterDao.get(enterId);

//输入流

InputStream inputStream = null;

//获得excel格式的输入流，并进行解析

POIFSFileSystem fileSystem = null;

//读取excel格式的输入流

HSSFWorkbook workbook = null;

//读1个工作表

HSSFSheet sheet = null;

//读一行记录

HSSFRow row = null;

try{

inputStream = new FileInputStream(file);

fileSystem = new POIFSFileSystem(inputStream);

workbook = new HSSFWorkbook(fileSystem);

int sheetNum = workbook.getNumberOfSheets();

for(int sheetIdx = 0; sheetIdx<sheetNum; sheetIdx++){

sheet = workbook.getSheetAt(sheetIdx);

int rowNum = sheet.getLastRowNum();

for(int rowIdx=0; rowIdx<=rowNum; rowIdx++){

if(rowIdx==0){

continue;

}

row = sheet.getRow(rowIdx);

String barcode = Project.formatCellString(row.getCell(0));

int number = Project.formatCellInt(row.getCell(1));

Enlist enlist = new Enlist();

enlist.setEnterId(enter.getId());

enlist.setProductId(product.getId());

enlist.setInitial(number);

enlist.setRemain(number);

enterDao.save(enlist);

}

}

return new Message("导入成功!").toString();

}catch(Exception e){

throw e;

}finally{

if(inputStream!=null){

try{

inputStream.close();

}catch(Exception ex){

}

}

Project.delFile(file.getAbsolutePath());

}

}