我正在尝试运行脚本任务，但它给了我一个错误
at System.RuntimeMethodHandle.InvokeMethod（Object target，Object [] arguments，Signature sig，Boolean constructor） at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal（Object obj，Object [] parameters，Object [] arguments） 在System.Reflection.RuntimeMethodInfo.Invoke（Object obj，BindingFlags invokeAttr，Binder binder，Object []参数，CultureInfo文化） at System.RuntimeType.InvokeMember（String name，BindingFlags bindingFlags，Binder binder，Object target，Object [] providedArgs，ParameterModifier [] modifiers，CultureInfo culture，String [] namedParams） 在Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTATaskScriptingEngine.ExecuteScript（）
以下是我执行的脚本任务
using System;
using System.Data;
using Microsoft.SqlServer.Dts.Runtime;
using System.Windows.Forms;
using System.IO;
using System.Data.OleDb;
#endregion
namespace ST_dc84f0f0b249439e95ab14b5ecae9d04
{
/// <summary>
/// ScriptMain is the entry point class of the script. Do not change the name, attributes,
/// or parent of this class.
/// </summary>
[Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
{
#region Help: Using Integration Services variables and parameters in a script
/* To use a variable in this script, first ensure that the variable has been added to
* either the list contained in the ReadOnlyVariables property or the list contained in
* the ReadWriteVariables property of this script task, according to whether or not your
* code needs to write to the variable. To add the variable, save this script, close this instance of
* Visual Studio, and update the ReadOnlyVariables and
* ReadWriteVariables properties in the Script Transformation Editor window.
* To use a parameter in this script, follow the same steps. Parameters are always read-only.
*
* Example of reading from a variable:
* DateTime startTime = (DateTime) Dts.Variables["System::StartTime"].Value;
*
* Example of writing to a variable:
* Dts.Variables["User::myStringVariable"].Value = "new value";
*
* Example of reading from a package parameter:
* int batchId = (int) Dts.Variables["$Package::batchId"].Value;
*
* Example of reading from a project parameter:
* int batchId = (int) Dts.Variables["$Project::batchId"].Value;
*
* Example of reading from a sensitive project parameter:
* int batchId = (int) Dts.Variables["$Project::batchId"].GetSensitiveValue();
* */
#endregion
#region Help: Firing Integration Services events from a script
/* This script task can fire events for logging purposes.
*
* Example of firing an error event:
* Dts.Events.FireError(18, "Process Values", "Bad value", "", 0);
*
* Example of firing an information event:
* Dts.Events.FireInformation(3, "Process Values", "Processing has started", "", 0, ref fireAgain)
*
* Example of firing a warning event:
* Dts.Events.FireWarning(14, "Process Values", "No values received for input", "", 0);
* */
#endregion
#region Help: Using Integration Services connection managers in a script
/* Some types of connection managers can be used in this script task. See the topic
* "Working with Connection Managers Programatically" for details.
*
* Example of using an ADO.Net connection manager:
* object rawConnection = Dts.Connections["Sales DB"].AcquireConnection(Dts.Transaction);
* SqlConnection myADONETConnection = (SqlConnection)rawConnection;
* //Use the connection in some code here, then release the connection
* Dts.Connections["Sales DB"].ReleaseConnection(rawConnection);
*
* Example of using a File connection manager
* object rawConnection = Dts.Connections["Prices.zip"].AcquireConnection(Dts.Transaction);
* string filePath = (string)rawConnection;
* //Use the connection in some code here, then release the connection
* Dts.Connections["Prices.zip"].ReleaseConnection(rawConnection);
* */
#endregion
/// <summary>
/// This method is called when this script task executes in the control flow.
/// Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.
/// To open Help, press F1.
/// </summary>
public void Main()
{
//Declare Variables
string SourceFolderPath = Dts.Variables["User::SourceFolderPath"].Value.ToString();
string DestinationFolderPath = Dts.Variables["User::DestinationFolderPath"].Value.ToString();
string FileExtension = Dts.Variables["User::FileExtension"].Value.ToString();
string FileDelimiter = Dts.Variables["User::FileDelimiter"].Value.ToString();
string CreateTableStatement = "";
string ColumnList = "";
//Reading file names one by one
string SourceDirectory = SourceFolderPath;
string[] fileEntries = Directory.GetFiles(SourceDirectory, "*" + FileExtension);
foreach (string fileName in fileEntries)
{
// do something with fileName
//MessageBox.Show(fileName);
//Read first line(Header) and prepare Create Statement for Excel Sheet
System.IO.StreamReader file = new System.IO.StreamReader(fileName);
string filenameonly = (((fileName.Replace(SourceDirectory, "")).Replace(FileExtension, "")).Replace("\\", ""));
CreateTableStatement = (" Create Table [" + filenameonly + "] ([" + file.ReadLine().Replace(FileDelimiter, "] Text,[")) + "] Text)";
file.Close();
//MessageBox.Show(CreateTableStatement.ToString());
//Construct ConnectionString for Excel
string connstring = "Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source=" + DestinationFolderPath + "\\" + filenameonly
+ ";" + "Extended Properties=\"Excel 12.0 Xml;HDR=YES;\"";
OleDbConnection Excel_OLE_Con = new OleDbConnection();
OleDbCommand Excel_OLE_Cmd = new OleDbCommand();
//drop Excel file if exists
File.Delete(DestinationFolderPath + "\\" + filenameonly + ".xlsx");
Excel_OLE_Con.ConnectionString = connstring;
Excel_OLE_Con.Open();
Excel_OLE_Cmd.Connection = Excel_OLE_Con;
//Use OLE DB Connection and Create Excel Sheet
Excel_OLE_Cmd.CommandText = CreateTableStatement;
Excel_OLE_Cmd.ExecuteNonQuery();
//Writing Data of File to Excel Sheet in Excel File
int counter = 0;
string line;
System.IO.StreamReader SourceFile =
new System.IO.StreamReader(fileName);
while ((line = SourceFile.ReadLine()) != null)
{
if (counter == 0)
{
ColumnList = "[" + line.Replace(FileDelimiter, "],[") + "]";
}
else
{
string query = "Insert into [" + filenameonly + "] (" + ColumnList + ") VALUES('" + line.Replace(FileDelimiter, "','") + "')";
// MessageBox.Show(query.ToString());
var command = query;
Excel_OLE_Cmd.CommandText = command;
Excel_OLE_Cmd.ExecuteNonQuery();
}
counter++;
}
Excel_OLE_Con.Close();
SourceFile.Close();
Dts.TaskResult = (int)ScriptResults.Success;
}
}
#region ScriptResults declaration
/// <summary>
/// This enum provides a convenient shorthand within the scope of this class for setting the
/// result of the script.
///
/// This code was generated automatically.
/// </summary>
enum ScriptResults
{
Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
};
#endregion
}
}
日志文件中的错误是
System.Data.OleDb.OleDbException（0x80004005）：无法更新。 数据库或对象是只读的。在 System.Data.OleDb.OleDbConnectionInternal..ctor（OleDbConnectionString constr，OleDbConnection连接）at System.Data.OleDb.OleDbConnectionFactory.CreateConnection（DbConnectionOptions options，DbConnectionPoolKey poolKey，Object poolGroupProviderInfo， DbConnectionPool池，DbConnection owningObject）at System.Data.ProviderBase.DbConnectionFactory.CreateConnection（DbConnectionOptions options，DbConnectionPoolKey poolKey，Object poolGroupProviderInfo， DbConnectionPool池，DbConnection owningConnection， DbConnectionOptions userOptions）at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection（的DbConnection owningConnection，DbConnectionPoolGroup poolGroup，DbConnectionOptions userOptions）at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection（的DbConnection owningConnection，TaskCompletionSource1重试，DbConnectionOptions userOptions，DbConnectionInternal oldConnection，DbConnectionInternal＆amp; 连接） System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal（的DbConnection outerConnection，DbConnectionFactory connectionFactory， TaskCompletionSource1重试，DbConnectionOptions userOptions）at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection（的DbConnection outerConnection，DbConnectionFactory connectionFactory， TaskCompletionSource1重试，DbConnectionOptions userOptions）at System.Data.ProviderBase.DbConnectionInternal.OpenConnection（的DbConnection outerConnection，DbConnectionFactory connectionFactory）at System.Data.OleDb.OleDbConnection.Open（）at ST_95d12bd810fe43d993a0b7a913fec230.ScriptMain.Main（）
答案 0 :(得分：1)
从错误日志中看起来你的excel文件是只读的。
System.Data.OleDb.OleDbException（0x80004005）：无法更新。数据库或对象是只读的。
只需删除此属性即可。您可以通过代码执行此操作（假设strFilePath是excel路径）
System.IO.File.SetAttributes(strFilePath, System.IO.FileAttributes.Normal)