1

我在 C# 中的 dll 中的数据库是这样的

    static SqlConnection cnn;
    static SqlDataReader reader;
    public string StorePass;
    public string  pass;
    byte[] tmpSource;
    byte[] tmpHash;
    public int  user;
    //static ArrayList list;
    static string connect = @"Server=.;database=Intranet;Integrated Security=true";

    public static void open()
    {
        cnn = new SqlConnection();
        cnn.ConnectionString = connect;
        try
        {
            cnn.Open();
        } //open connection
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            Console.WriteLine(e.Source);

            Console.WriteLine("unable to open");
        }
    }
    public bool login(int usr, string pass)
    {
        user = usr;
        this.pass = pass;
        string temppass;
        tmpSource = ASCIIEncoding.ASCII.GetBytes(pass);
        tmpHash = new MD5CryptoServiceProvider().ComputeHash(tmpSource);
        temppass = ByteArrayToString(tmpHash);
        DB.open();
        StorePass = DB.retrievePass(user);
        bool bEqual = false;
        bEqual = String.Equals(temppass, StorePass, StringComparison.Ordinal);

        if (bEqual)
        {

            return true; 
        }

    }
    static string ByteArrayToString(byte[] arrInput)
    {
        int i;
        StringBuilder sOutput = new StringBuilder(arrInput.Length);
        for (i = 0; i < arrInput.Length - 1; i++)
        {
            sOutput.Append(arrInput[i].ToString("X2"));
        }
        return sOutput.ToString();
    }

    private static string retrievePass(int user)
    {
        using (cnn)
        {
            string pass = "";
            string table = "Login_Table";
            string strSQL = string.Format("Select * From {0} where UID = '{1}'", table, user);
            SqlCommand myCommand = new SqlCommand(strSQL, cnn);
            cnn.Open();
            reader = myCommand.ExecuteReader();
            /*while (reader.Read())
            {
                pass = reader["Hashed_Password"].ToString();
            }*/
            try
            {
                reader.Read();
                pass = reader["Hashed_Password"].ToString();
                reader.Close();
                return pass;

            }
            catch
            {
                reader.Close();
                return null;
            }
        }
    }  

我调用上述方法访问的网站上的 aspx.cs 是

    DB ob;
protected void Page_Load(object sender, EventArgs e)
{
    ob = new DB();
    DB.open();
}
protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
{
    try
    {

        int id = int.Parse(Login1.UserName);

        string pass = Login1.Password;
        if (ob.login(id, pass))
        {
            Session["user"] = ob;
            this.Session["UserName"] = Login1.UserName;

            Response.Redirect("Post_View.aspx");
        }
    }
    catch(Exception ex)
    {
        throw;
    }

}
protected void LoginButton_Click(object sender, EventArgs e)
{

}

上面的代码可以很好地从 Visual Studio 中模拟出来。但是当部署在 IIS 8 中时,它会显示用户“IIS APPPOOL\.NET v2.0”的错误登录失败。请在这方面帮助我,因为在 IIS 中部署时也以类似方式编写的其他代码显示错误。我是否必须更改我的代码?提前致谢

我的堆栈跟踪

      Server Error in '/Test' Application.

     Login failed for user 'IIS APPPOOL\.NET v2.0'.

   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 'IIS APPPOOL\.NET v2.0'.

  Source Error: 


 Line 80:                 string strSQL = string.Format("Select * From {0} where UID = '{1}'", table, user);
 Line 81:                 SqlCommand myCommand = new SqlCommand(strSQL, cnn);
 Line 82:                 cnn.Open();
 Line 83:                 reader = myCommand.ExecuteReader();
 Line 84:                 /*while (reader.Read())

 Source File: e:\Demo\Intranet_DB\Intranet_DB\DB.cs    Line: 82 

 Stack Trace: 


 [SqlException (0x80131904): Login failed for user 'IIS APPPOOL\.NET v2.0'.]
 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +578
 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +88
 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +6322807
 System.Data.SqlClient.SqlConnection.Open() +258
 Intranet_DB.DB.retrievePass(Int32 user) in e:\Demo\Intranet_DB\Intranet_DB\DB.cs:82
 Intranet_DB.DB.login(Int32 usr, String pass) in    e:\Demo\Intranet_DB\Intranet_DB\DB.cs:51
  _Default.Login1_Authenticate(Object sender, AuthenticateEventArgs e) in c:\inetpub\wwwroot\Test\Default.aspx.cs:38
    System.Web.UI.WebControls.Login.AttemptLogin() +152
    System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +124
    System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +70
    System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29
    System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981
4

2 回答 2

0
  1. 使用 .Net 框架的确切版本创建您自己的应用程序池。
  2. 使用用户名和密码修改您的连接字符串,不要将其与 Windows 身份验证一起使用。
于 2013-10-14T09:59:30.673 回答
0

检查您的连接字符串。您正在使用当前用户登录数据库,而在 IIS (IIS APPPOOL.NET v2.0) 中运行应用程序池的用户无权访问数据库。

您应该:

  1. 更改连接字符串并指定不同的用户。
  2. 或者,更改运行应用程序池的用户。
于 2013-10-14T09:39:38.780 回答