“/”应用程序中的服务器错误。

无法打开登录所请求的数据库 "cdn_sql"。登录失败。

用户 "sa" 登录失败。

说明: 执行当前 Web 请求期间，出现未经处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.Data.SqlClient.SqlException: 无法打开登录所请求的数据库 "cdn_sql"。登录失败。

用户 "sa" 登录失败。

源错误:

执行当前 Web 请求期间生成了未经处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。

堆栈跟踪:

[SqlException (0x80131904): 无法打开登录所请求的数据库 "cdn_sql"。登录失败。

用户 "sa" 登录失败。]

System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +1307

System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +108

System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +941

System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +143

System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +17

System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +139

System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +448

System.Data.SqlClient.SqlConnection.Open() +130

NewFolder1.Class1.user(String ipkey, String rz, Int32 cl) +154

WebApplication1.api.ProcessRequest(HttpContext context) +499

System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +814

System.Web.HttpApplication.E