Home Database Mysql Tutorial MSDN演练时发现的SqlServer2005数据库连接问题

MSDN演练时发现的SqlServer2005数据库连接问题

Jun 07, 2016 pm 03:33 PM
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演练:网页中的基本数据访问 ms-help://MS.VSCC.v80/MS.MSDN.v80/MS.VisualStudio.v80.chs/dv_vwdcon/html/6c77d50c-7a1c-46ef-9ffe-2b8a6f54b1ab.htm 主要过程: 1.在 Visual Web Developer 中,切换到设计视图中。 2.从工具箱的数据文件夹中,将 GridView

演练:网页中的基本数据访问
ms-help://MS.VSCC.v80/MS.MSDN.v80/MS.VisualStudio.v80.chs/dv_vwdcon/html/6c77d50c-7a1c-46ef-9ffe-2b8a6f54b1ab.htm

主要过程:
        1.在 Visual Web Developer 中,切换到“设计”视图中。
        2.从“工具箱”的“数据”文件夹中,将 GridView 控件拖动到页面上。
        3.如果未显示“GridView 任务”快捷菜单,则右击 GridView 控件,然后单击“显示智能标记”。
        4.在“GridView 任务”菜单上的“选择数据源”列表中,单击“”。
出现“数据源配置”对话框。
        5.单击“数据库”。
这将指定您要从支持 SQL 语句的数据库中获取数据。此类数据库包括 SQL Server 和其他与 OLE-DB 兼容的数据库。
在“为数据源指定 ID”框中,将显示默认的数据源控件名称(“SqlDataSource1”)。可以保留此名称。
        6.单击“确定”。
        7.随即会显示“配置数据源”向导,其中显示了一个可在其中选择连接的页面。
单击“新建连接”。
        8.在“选择数据源”对话框的“数据源”下,单击“Microsoft SQL Server”,然后单击“继续”。
即出现“添加连接”对话框。
        9.在“服务器名”框中,输入要使用的 SQL Server 的名称。
        10.在登录凭据中,选择可用于访问 SQL Server 数据库的选项(集成安全性或特定的 ID 和密码),并在需要时输入一个用户名和密码。
        11.单击“选择或输入数据库名”,然后输入“Northwind”。
        12.单击“测试连接”,并在确定该连接生效后单击“确定”。
随即会显示“配置数据源 - ”向导,其中填充了连接信息。
        ……

        就是第12步单击“测试连接”出了问题,提示错误:
        在建立与服务器的连接时出错。在连接到 SQL Server 2005 时,在默认的设置下 SQL Server 不允许进行远程连接可能会导致此失败。 (provider: 命名管道提供程序, error: 40 - 无法打开到 SQL Server 的连接)
        这个问题以前也遇到过,解决了,可是不知道为什么又出来。解决方法如下:
        1.服务器如果开了防火墙,把它关闭
        2. 开启sql2005远程连接功能,开启办法如下,
        配置工具->sql server外围应用配置器->服务和连接的外围应用配置器->打开MSSQLSERVER节点下的Database Engine 节点,先择"远程连接",接下建议选择"同时使用TCP/IP和named pipes",确定后,重启数据库服务就可以了.
        3.登陆设置改为,Sql server and windows Authentication方式同时选中,具体设置如下:
        Management Studio管理器->windows Authentication(第一次用windows方式进去),->对象资源管理器中选择你的数据服务器--右键>属性>security>Sql server and windows Authentication方式同时选中.
        4.设置一个Sql server方式的用户名和密码,具体设置如下:
        Management Studio管理器->windows Authentication>new query>sp_password null,'sa123456','sa' 
        这样就设置了一个用户名为sa ,密码为:sa123456的用户,下次在登陆时,可以用Sql server方式,
        用户名为sa ,密码为:sa123456的用户进数据库了.
        5.做完上面三步后,这样写连接字符串就可以顺利进入数据库了,
        (server=.\\sqlexpress;uid=sa;pwd=sa123456;database=master");
        后来用这个管理器才发现,正确的Server名是这样的,机器名\SQLEXPRESS而不是LOCALHOST,127.0.0.1,FANCYBOY(机器名)比如我的是这样的
        Server:FANCYBOY\SQLEXPRESS

        原来的是:Server=localhost;database=user;uid=sa;pwd=''
        现在的是:Server=.\\SQLEXPRESS;database=user;uid=sa;pwd=''
        还找到了另外一个可能的解决方法:
        1.打开IIS属性-》虚拟目录属性-》选Net 2.0-》点‘编辑配置’-》删除所有连接SQlexpress的项
当然,最好连全局的配置也删除,
         2.打开IIS属性-》站点属性-》选Net 2.0-》点‘编辑全局配置’
-》删除所有连接SQlexpress的项

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