我写了一个代码，它将读取多个分隔的txt文件，并将通过它们解析数据，然后应该将它们添加到我的SQL表中的行。我遇到的问题是它将读入所有文件并解析它们（我知道它正在这样做，因为目前我还将它写入控制台并且它正在编写我需要的所有值。它应该是它完成后将文件移动到另一个文件夹，这也是因为它运行后文件只在单独的文件夹中。我遇到的问题是我的代码只会在SQL表中添加一行。如果全部行是空的，我可以用一个文件运行代码，它将生成行并添加数字。但是，如果我再次运行它，代码将解析数据但不会为数字创建一个新行。因此，当我尝试使用多个文件时，它只添加第一个文件，然后继续运行并解析其余文件，但不会将它们添加到表中
这是我的代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using FileHelpers;
using System.Data.SqlClient;
using System.IO;
using System.Data;
namespace prototype_using_filehelpers
{
class ManagerReport
{
[DelimitedRecord("|")]
[IgnoreEmptyLines()]
[IgnoreFirst()]
[IgnoreLast(2)]
public class ManagerReportNames
{
public int? MASTER_VALUE_ORDER;
public int? MASTER_VALUE;
public string RESORT;
public int? CS_HEADING_COUNT_MASTER;
public int? CS_FS_ARR_ROOMS_MASTER;
public int? CS_FS_DEP_ROOMS_MASTER;
public int? CS_FS_NO_ROOMS_MASTER;
public int? CS_FS_GUESTS_MASTER;
public int? CS_FS_TOTAL_REVENUE_MASTER;
public int? CS_FS_ROOM_REVENUE_MASTER;
public int? CS_FS_INVENTORY_ROOMS_MASTER;
public int? CF_FS_PERC_OCC_ROOMS_MASTER;
public int? CF_FS_AVG_ROOM_RATE_MASTER;
public int? LAST_YEAR_01;
public int? SUB_GRP_1_ORDER;
public string SUB_GRP_1;
public string DESCRIPTION;
public string AMOUNT_FORMAT_TYPE;
public string PRINT_LINE_AFTER_YN;
public int? HEADING_1_ORDER;
public int? HEADING_1;
[FieldOptional]
public string HEADING_2;
[FieldOptional]
[FieldConverter(ConverterKind.Decimal, ".")]
public decimal? SUM_AMOUNT;
[FieldOptional]
public decimal? FORMATTED_AMOUNT;
}
static void ProcessFilesCSVFiles(string originalPath, string destinationPath)
{
// first check if path exists
if (!Directory.Exists(originalPath))
// doesn't exist then exit, can't copy from something that doesn't exist
return;
var copyPathDirectory = new DirectoryInfo(originalPath);
// using the SearchOption.AllDirectories will search sub directories
var copyPathCSVFiles = copyPathDirectory.GetFiles("*.txt", SearchOption.AllDirectories);
// loops through directory looking for txt files
for (var i = 0; i < copyPathCSVFiles.Length; i++)
{
// get the file
var csvFile = copyPathCSVFiles[i];
//sets lines to the files full extention so it can then be called at a later time
string lines = csvFile.FullName;
// read the csv file line by line
FileHelperEngine engine = new FileHelperEngine(typeof(ManagerReportNames));
var records = engine.ReadFile(lines) as ManagerReportNames[];
foreach (var record in records)
{
Console.WriteLine(record.RESORT);
Console.WriteLine(record.FORMATTED_AMOUNT);
string Heading = record.HEADING_2;
string Group = record.SUB_GRP_1;
string Description = record.DESCRIPTION;
string column;
decimal? amount;
if (Heading == "DAY" && Group == "OCC_PERC")
{
column = "Percent_Rooms_Occupied";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "OCC_PERC_WO_CH")
{
column = "Percent_Rooms_Occupied_minus_Comp_and_House";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "ADR_ROOM")
{
column = "ADR";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "ADR_ROOM_WO_CH")
{
column = "ADR_minus_Comp_and_House";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "ROOMREV_AVL_ROOMS_MINUS_OOO")
{
column = "Revenue_per_Available_Room_minus_OOO";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "TOTAL_REVENUE")
{
column = "Total_Revenue";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "ROOM_REVENUE")
{
column = "Room_Revenue";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "FOOD_BEV_REVENUE")
{
column = "Food_And_Beverage_Revenue";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "OTHER_REVENUE" && Description == "Other Revenue")
{
column = "Other_Revenue";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "PHYSICAL_ROOMS")
{
column = "Total_Rooms_in_Hotel";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "OCC_ROOMS")
{
column = "Rooms_Occupied";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "OCC_MINUS_COMP_HU")
{
column = "Rooms_Occupied_minus_Comp_and_House_Use";
amount = record.FORMATTED_AMOUNT;
}
else if (Heading == "DAY" && Group == "COMP_ROOMS")
{
column = "Complimentary_Rooms";
amount = record.FORMATTED_AMOUNT;
}
else
{
continue;
}
// SQL connection. Creates connection and command and inserts the values taken from the File Helper engine into the SQL table
SqlCommand cmd;
SqlConnection conn;
conn = new SqlConnection("Data Source=hureports01;Initial Catalog=hureports;Integrated Security=True");
conn.Open();
var sqlCommand = string.Format(@"MERGE [HEWreport] AS target USING (select @Property_ID as Property_ID, @val as {0}) AS source ON (target.Property_ID = source.Property_ID) WHEN MATCHED THEN UPDATE SET {0}= source.{0}
WHEN NOT MATCHED THEN INSERT (Property_ID, {0}) VALUES (source.Property_ID, source.{0});", column);
cmd = new SqlCommand(sqlCommand, conn);
cmd.Parameters.AddWithValue("@Property_ID", record.RESORT);
cmd.Parameters.AddWithValue("@val", amount);
cmd.ExecuteNonQuery();
conn.Close();
}
// creates a variable that combines the the directory of the new folder with the file name
var destinationFilePath = Path.Combine(destinationPath, csvFile.Name);
// This loop prevents duplicates. If a file is already in the folder, it will delete the file already in there and move this one in.
// Shouldn't be an issue since each file will have a different name
if (File.Exists(destinationFilePath))
{
File.Delete(destinationFilePath);
}
// moves it to the new folder
csvFile.MoveTo(destinationFilePath);
}
}
static void Main(string[] args)
{
ProcessFilesCSVFiles(@"C:\Users\Documents\Hotels", @"C:\Users\Documents\Completed Hotels");
}
}
}
已编辑，以显示我尝试使用的Insert语句执行的操作：
var sqlCommand = string.Format("INSERT INTO HEWreport (Property_ID, {0}) VALUES (@Property_ID,@val)", column);
cmd = new SqlCommand(sqlCommand, conn);
cmd.Parameters.AddWithValue("@Property_ID", record.RESORT);
cmd.Parameters.AddWithValue("@val", amount);
这个问题是每个金额值都在不同的行上。我希望同一文件中的13个金额值都在同一行。我只希望从另一个文件获取的值在不同的行上。为了获得我测试的一个文件的同一行的值，我必须创建一个MERGE语句。现在我想要实现更多文件，MERGE不起作用，但这两者都没有，因为没有任何东西在彼此相同的行上。我只是想让它在一个文件中读取，将一个文件中的所有内容放在同一行但在不同的列中，然后将下一个文件中的所有数据放入自己的行中。
这是使用insert：
13 TTNEW 5/27/2016 39.3 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL
14 TTNEW 5/27/2016 NULL 37.31 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL
15 TTNEW 5/27/2016 NULL NULL 97.23 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL
16 TTNEW 5/27/2016 NULL NULL NULL 102.42 NULL NULL NULL NULL NULL NULL NULL NULL NULL
17 TTNEW 5/27/2016 NULL NULL NULL NULL 41.75 NULL NULL NULL NULL NULL NULL NULL NULL
18 TTNEW 5/27/2016 NULL NULL NULL NULL NULL 10694.25 NULL NULL NULL NULL NULL NULL NULL
19 TTNEW 5/27/2016 NULL NULL NULL NULL NULL NULL 7681.26 NULL NULL NULL NULL NULL NULL
20 TTNEW 5/27/2016 NULL NULL NULL NULL NULL NULL NULL 2828.94 NULL NULL NULL NULL NULL
21 TTNEW 5/27/2016 NULL NULL NULL NULL NULL NULL NULL NULL 184.05 NULL NULL NULL NULL
22 TTNEW 5/27/2016 NULL NULL NULL NULL NULL NULL NULL NULL NULL 201 NULL NULL NULL
23 TTNEW 5/27/2016 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL 79 NULL NULL
24 TTNEW 5/27/2016 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL 75 NULL
25 TTNEW 5/27/2016 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL 4
NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL
这是使用Merge：
12 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
这是我的问题：
12 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
13 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
14 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
15 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
16 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
17 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
18 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
19 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
20 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
21 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
22 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
23 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
24 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
25 TTNEW 5/27/2016 39.3 37.31 97.23 102.42 41.75 10694.25 7681.26 2828.94 184.05 201 79 75 4
当我将其切换回合并并给它3个文件进行排序时，它从第一个获取信息，并用它的数据覆盖所有现有数据。但是，我知道循环部分有效，因为当我使用它作为插入而不是合并时，所有文件中的所有数据都会显示出来，它最终会成为很多不必要的行。