获取方式取决于数据库中配置的方式:
第一种:用appSettings配置的方式
<appSettings> <add key="ConnectionString" value="data source=xxx;initial catalog=xxx;user id=xxx;password=xxxx;persist security info=True;packet size=4096"/> </appSettinngs>
获取方式为:string conSql = ConfigurationManager.AppSettings["ConnectionString"];
第二种:用connectionStrings配置的方式
<connectionStrings> <add name="SQLConnet" connectionString="Data Source=xxx;Initial Catalog=xxx;uid=sa;pwd=123456;" providerName="System.Data.SqlClient" /> </connectionStrings>
获取方式为:string conSql = ConfigurationManager.ConnectionStrings["SQLConnet"].ToString();