错误“无法为此连接检索数据库架构”

Question

这是我的数据库在Microsoft SQL Server Management Studio下的服务器上的样子

我希望如果我把我的数据库代码和连接代码放在一起，你们可以告诉我什么是错的？我不确定问题是什么，我很确定代码没问题。

这是我为电影创建的数据库 - MovieDB

CREATE TABLE [dbo].[movie]
(
    [id] [int] IDENTITY(1,1) NOT NULL,
    [name] [varchar](50) NOT NULL,
    [genre] [varchar](50) NOT NULL,
    [price] [float] NOT NULL,
    [rating] [float] NOT NULL,
    [director] [varchar](50) NOT NULL,
    [image] [varchar](255) NULL,
    [review] [text] NOT NULL,
PRIMARY KEY CLUSTERED 
(
    [id] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO

SET IDENTITY_INSERT [dbo].[movie] ON
INSERT [dbo].[movie] ([id], [name], [genre], [price], [rating], [director], [image], [review]) VALUES (1, N'Guardians of the Galaxy', N'Action', 19.99, 7.6, N'James Gunn', N'../Images/Movies/GOTG-poster.jpeg', N'Gunn makes this huge entertainment accessible to the converted and the neophyte alike, and he has only has one goal: To send you out of the theater with a fat smile on your face. Mission accomplished.')
INSERT [dbo].[movie] ([id], [name], [genre], [price], [rating], [director], [image], [review]) VALUES (2, N'The Godfather', N'Drama', 9.99, 100, N'Francis Ford Coppola', N'../Images/Movies/Godfather.jpeg', N' The wedding sequence... is a virtuoso stretch of filmmaking: Coppola brings his large cast onstage so artfully that we are drawn at once into the Godfather world.')
INSERT [dbo].[movie] ([id], [name], [genre], [price], [rating], [director], [image], [review]) VALUES (3, N'Dawn of the Planet of the Apes', N'Action', 19.99, 7.9, N'Matt Reeves', N'../Images/Movies/Ape.jpeg', N' Director Matt Reeves, working from a script by Rick Jaffa, Amanda Silver and Mark Bomback, elevates the apes to primary importance in this intelligent thriller.')
INSERT [dbo].[movie] ([id], [name], [genre], [price], [rating], [director], [image], [review]) VALUES (4, N'Moonstruck', N'Romantic-Comedy', 6.13, 8.3, N'Norman Jewison', N'../Images/Movies/Moon.jpeg', N' In its warmth and in its enchantment, as well as in its laughs, this is the best comedy in a long time.')
SET IDENTITY_INSERT [dbo].[movie] OFF

这是我在Visual Studio的ConnectionClass.cs文件夹下标记为App_Code的连接代码

using System;
using System.Collections;
using System.Linq;
using System.Configuration;
using System.Data.SqlClient;
using System.Web;

/// <summary>
/// Summary description for ConnectionClass
/// </summary>
public static class ConnectionClass
{
    private static SqlConnection conn;
    private static SqlCommand command;

    static ConnectionClass()
    {
        string connectionString = 
            ConfigurationManager.ConnectionStrings["movieConnection"].ToString();
        conn = new SqlConnection(connectionString);
        command = new SqlCommand("", conn);
    }

    public static ArrayList GetMovieByType(string movieType)
    {
        ArrayList list = new ArrayList();
        string query = string.Format("SELECT * FROM movie WHERE type LIKE '{0}'", movieType);

        try
        {
            conn.Open();
            command.CommandText = query;
            SqlDataReader reader = command.ExecuteReader();

            while (reader.Read())
            {
                int id = reader.GetInt32(0);
                string name = reader.GetString(1);
                string genre = reader.GetString(2);
                double price = reader.GetDouble(3);
                double rating = reader.GetDouble(4);
                string director = reader.GetString(5);
                string image = reader.GetString(6);
                string review = reader.GetString(7);

                Movie movie = new Movie(id, name, genre, price, rating, director, image, review);
                list.Add(movie);
            }
        }
        finally
        {
            conn.Close();
        }

        return list;
    }

}

最后，这就是我在web.config文件中的内容

<connectionStrings>
    <clear/>
    <add name="movieConnection" 
         connectionString="Data Source=LOCALHOST\SQLEXPRESS; Initial Catalog=MovieDB; Integrated Security=True"
         providerName="System.Data.SqlClient"/>
</connectionStrings>

我一直收到错误：

  

无法打开登录

请求的数据库“MovieDB”

Answer 1

我会先确保你完成基本工作。

穷人测试连接的方法......没有代码......是设置ODBC / DSN。您可以稍后删除它。转到“控制面板”，“管理工具”，“ODBC（或DSN）”。添加一个新的系统-dsn ...只是为了看看你是否可以通过。再次，首先将你的代码从等式中取出......这将是我的建议。

我会确保你有正确的ServerName，并记住有时SqlServer安装在＆＃34; InstanceName＆＃34;。

所以它会是

1. SomeMachineName

或

1. SomeMachineName \ SomeInstanceName

一旦你通过＆＃34;那个测试.........然后我们可以继续前进。