1.
public static string connectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;<connectionStrings>
<add name="ConnectionString" connectionString="Data Source=localhost;Persist Security Info=True;User ID=***;Password=***;Unicode=True"
providerName="System.Data.OracleClient" />
</connectionStrings>
2.
public static string connectionString = ConfigurationSettings.AppSettings["ConnectionString"];
<add key="ConnectionString" value="server=localhost;database=***;uid=sa;pwd=***"></add>
参考:
原文:http://www.cnblogs.com/wangfuyou/p/4878931.html