从web.config文件中读取值？

Question

从我的DAL，如何从web.config中读取连接字符串？

Answer 1

您可以使用WebConfigurationManager从web.config

读取连接字符串值

代码示例：

using System.Configuration;

string connString = WebConfigurationManager.ConnectionStrings["ConnectionString"].ToString();

确保已将System.configuration引用添加到DAL。

Answer 2

using System.Configuration;

static string connectionString = 
    ConfigurationManager.ConnectionStrings["MyConn"].ConnectionString;

如果您的项目中有多个Web.Config文件使用数据连接字符串，则Yuu只需要WebConfigurationManager：

What's the difference between the WebConfigurationManager and the ConfigurationManager?

Answer 3

System.Configuration.ConfigurationManager.ConnectionStrings["connStr"].ConnectionString