我有一个ASP.NET MVC应用程序,其中数据库位于IBM i系列服务器上。当我开始弹出The ConnectionString property is invalid.
错误时,我的应用程序开发接近完成:
仅在登录时
重建后首次成功登录后
任何登录的人仍然可以正常工作
另外,请注意,此问题仅在我的解决方案中的一个项目中出现。另一个项目使用完全相同的连接字符串,并且没有此问题(已复制并粘贴为100%确保)。我正在这些项目的积极开发中,但是在登录成功后,没有涉及过连接字符串,也没有使用过AccountController
和相关模型类。
我正在使用Visual Studio 2008和.NET 3.5版。
连接字符串:
<connectionStrings>
<add name="IbmIConnectionString" connectionString="DataSource=192.168.50.200;DefaultCollection=QMFILES;Naming=sql;UserID=XXX;Password=XXXX;"/>
</connectionStrings>
帐户控制器登录方法:
[HttpPost]
public ActionResult LogOn(LogOnModel model, string returnUrl)
{
string fullName = String.Empty;
string employeeId = String.Empty;
if (ModelState.IsValid)
{
if (MembershipService.ValidateUser(model.UserName, model.Password))
{
FormsService.SignIn(model.UserName, model.RememberMe);
EmployeeLoginModel elm = new EmployeeLoginModel();
elm.GetUserInfo(model.UserName, model.Password, out fullName, out employeeId);
// Update the AuthCookie to include the last 4 digits of the SSN.
string userDataString = String.Format("{0}|{1}|{2}", model.Password, fullName.Trim(), employeeId.Trim());
HttpCookie authCookie = FormsAuthentication.GetAuthCookie(model.UserName, model.RememberMe);
FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(authCookie.Value);
FormsAuthenticationTicket newTicket = new FormsAuthenticationTicket(ticket.Version, ticket.Name, ticket.IssueDate, ticket.Expiration, ticket.IsPersistent, userDataString);
authCookie.Value = FormsAuthentication.Encrypt(newTicket);
Response.Cookies.Add(authCookie);
if (!String.IsNullOrEmpty(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
else
{
ModelState.AddModelError("", "The user name or password provided is incorrect.");
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
员工登录模式:
public class EmployeeLoginModel
{
public string UserName { set; get; }
public string Password { set; get; }
private iDB2Connection conn;
/// <summary>
/// Initializes a new instance of the <see cref="EmployeeLoginModel"/> class.
/// </summary>
public EmployeeLoginModel()
{
conn = new iDB2Connection(ConfigurationManager.ConnectionStrings["IbmIConnectionString"].ConnectionString);
}
/// <summary>
/// Determines whether [is valid user] [the specified username].
/// </summary>
/// <param name="username">The username.</param>
/// <param name="password">The password.</param>
/// <returns>
/// <c>true</c> if [is valid user] [the specified username]; otherwise, <c>false</c>.
/// </returns>
public bool IsValidUser(string username, string password)
{
int count = 0;
// Get the data from the iSeries
using (conn)
{
string sqlStatement = "SELECT COUNT(XXXXX) FROM XXXXX WHERE UPPER(XXXXXX) = @1 AND XXXXXX = @2";
iDB2Command cmd = new iDB2Command(sqlStatement, conn);
cmd.CommandType = CommandType.Text;
cmd.Parameters.Add("@1", username.ToUpper());
cmd.Parameters.Add("@2", password);
conn.Open();
count = (Int32)cmd.ExecuteScalar();
conn.Close();
}
return ((count == 0) ? false : true);
}
最佳答案
出现此错误的另一个非常简单的原因是,未安装所需的DB2驱动程序。
内部异常说明
无法加载DLL'cwbdc.dll':找不到指定的模块。 (来自HRESULT的异常:0x8007007E)
类型:System.DllNotFoundException
关于c# - 当我知道它是有效的时,“ConnectionString属性无效。”,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/4317514/