从数据库中读取数据并写入到Excle电子表格之2

 //CC_AutoId, CC_LoginId, CC_LoginPassword, CC_UserName, CC_ErrorTimes, CC_LockDateTime, CC_TestInt

            string sqlStr = "select * from T_Seats";

            using (SqlDataReader reader = Alian_SQL_Helper.SqlHelper .ExecuteReader(sqlStr, CommandType .Text))

            {

                if (reader.HasRows)

                {

                    //获得列的索引

                    int autoIdindex = reader.GetOrdinal("CC_AutoId" );

                    int loginIdIndex = reader.GetOrdinal("CC_LoginId" );

                    int loginPasswordIndex = reader.GetOrdinal("CC_LoginPassword" );

                    int userNameIndex = reader.GetOrdinal("CC_UserName" );

                    int errorTimesIndex = reader.GetOrdinal("CC_ErrorTimes" );

                    int lockDateTimeIndex = reader.GetOrdinal("CC_LockDateTime" );

                    int testIntIndex = reader.GetOrdinal("CC_TestInt" );

                    using (Workbook wk = new HSSFWorkbook ())

                    {

                        //创建工作表

                        using (Sheet sheet = wk.CreateSheet("24K" ))

                        {

                            int rowIndex = 0 ;

 

                            while (reader.Read())

                            {

                                 //读取数据

                                Seats seats = new Seats();

                                seats.CC_AutoId = reader.GetInt32(autoIdindex);

                                seats.CC_LoginId = reader.GetString(loginIdIndex);

                                seats.CC_LoginPassword = reader.GetString(loginPasswordIndex);

                                seats.CC_UserName = reader.GetString(userNameIndex);

                                seats.CC_ErrorTimes = reader.GetInt32(errorTimesIndex);

 

                                seats.CC_LockDateTime = reader.IsDBNull(lockDateTimeIndex) ? null : (DateTime?)reader.GetDateTime (lockDateTimeIndex );

                                seats.CC_TestInt = reader.IsDBNull(testIntIndex) ? null : (int?)reader.GetInt32 (testIntIndex );

                                Row row = sheet.CreateRow(rowIndex);

                                row.CreateCell(0) .SetCellValue( seats.CC_AutoId);

 

                                row.CreateCell(1) .SetCellValue( seats.CC_LoginId);

 

                                row.CreateCell(2) .SetCellValue( seats.CC_LoginPassword);

 

                                row.CreateCell(3) .SetCellValue( seats.CC_UserName);

 

                                row.CreateCell(4) .SetCellValue( seats.CC_ErrorTimes);

 

                                Cell cell1 = row.CreateCell (5);

                                if (seats.CC_LockDateTime == null)

                                {

                                    cell1.SetCellType(CellType .BLANK);

                                }

                                else

                                {

                                      //添加相应的时间样式

                                    cell1.SetCellValue((DateTime )seats.CC_LockDateTime );

                                    CellStyle cellStyle = wk.CreateCellStyle();

                                    cellStyle.DataFormat = HSSFDataFormat .GetBuiltinFormat("m/d/yy h:mm" );

                                    cell1.CellStyle = cellStyle ;

                                }

 

 

                                Cell cellTestInt = row.CreateCell(6);

                                //对数字类型进行判断 让他可以在表格中参与计算

                                if (seats.CC_TestInt == null)

                                {

                                    cellTestInt.SetCellType(CellType .BLANK);

                                }

                                else

                                {

                                    cellTestInt.SetCellValue((int)seats.CC_TestInt );

                                }

                                rowIndex++;

                            }

                               //保存

                            using (FileStream fileStreamWrite = File.OpenWrite( "24K.xls"))

                            {

                                wk.Write(fileStreamWrite );

                            }

                        }

                    }

 

                }

            }