我正在尝试在我的应用程序和sql server 2008之间建立连接。但是,由于我遇到以下错误,我无法连接。
Server Error in '/' Application.
Login failed for user ''.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Login failed for user ''.
Source Error:
Line 15: SqlConnection con = new SqlConnection("data source = SEKHAR-PC;database = MyDB, integrated security = SSPI");
Line 16: SqlCommand cmd = new SqlCommand("Select * from EmployeeTable", con);
Line 17: con.Open();
Line 18: SqlDataReader rdr = cmd.ExecuteReader();
Line 19: GridView1.DataSource = rdr;
Source File: C:\Users\Hp\documents\visual studio 2010\Projects\CSProject\CSProject\ADO1.aspx.cs Line: 17
Stack Trace:
[SqlException (0x80131904): Login failed for user ''.]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5009598
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2275
System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +35
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject) +183
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout) +239
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +195
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +232
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +185
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +33
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +524
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +479
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +108
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +126
System.Data.SqlClient.SqlConnection.Open() +125
CSProject.ADO1.Page_Load(Object sender, EventArgs e) in C:\Users\Hp\documents\visual studio 2010\Projects\CSProject\CSProject\ADO1.aspx.cs:17
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +91
System.Web.UI.Control.LoadRecursive() +74
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.225
以下是我的代码: -
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
namespace CSProject
{
public partial class ADO1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection("data source = SEKHAR-PC;database = MyDB, integrated security = SSPI");
SqlCommand cmd = new SqlCommand("Select * from EmployeeTable", con);
con.Open();
SqlDataReader rdr = cmd.ExecuteReader();
GridView1.DataSource = rdr;
GridView1.DataBind();
con.Close();
}
}
}
我正在使用Windows身份验证。服务器名称= SEKHAR-PC。你能帮帮我吗?我是ADO.NET的新手,没有得到如何处理这个。
答案 0 :(得分:0)
我认为问题在你的连接字符串中。当您尝试使用windows authentication
模式访问sql server时,连接字符串应如下所示 -
SqlConnection con = new SqlConnection("data source = SEKHAR-PC; initial catalog= MyDB, integrated security = true");
答案 1 :(得分:0)
请通过在web.config中提供模拟来提供用户名和密码。
<system.web>
<identity impersonate="true" userName="domain\username" password="********"/>
</system.web>
请参阅https://msdn.microsoft.com/en-us/library/bsz5788z.aspx了解详情