[英]Not getting connection string value in wcf service method
我有一個名為AuxiliaryLib的類庫,其中包含如下應用程序設置:
<appSettings>
<add key="connectionstring" value="Data Source=My-Pc;Initial Catalog=Db1;User ID=StackOverflow;Password=123456"></add>
</appSettings>
現在,在這個類庫中,我有1個類文件,它們返回如下所示的連接字符串:
public static string ReturnConnectionString()
{
return System.Configuration.ConfigurationManager.AppSettings["connectionstring"];
}
我有1個wcf項目,在其中我給出了上述類庫的引用,即AuxiliaryLib並調用了上述連接字符串方法,但是我得到了null。
Public void MyMethod()
{
var connectionRepo = new ConnectionRepo();
string str = ConnectionRepo.ReturnConnectionString(); //getting null
}
我在wcf項目中有web.config,在其中添加了連接字符串,但仍為null:
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
<add key="connectionstring" value="Data Source=My-Pc;Initial Catalog=Db1;User ID=StackOverflow;Password=123456"></add>
</appSettings>
<!--<connectionStrings>
<add name="connectionstring" connectionString="Data Source=My-Pc;Initial Catalog=Db1;User ID=StackOverflow;Password=123456"></add>
</connectionStrings>-->
Public void MyMethod(string regionId)
{
string str = ConfigurationManager.ConnectionStrings["connectionstring"].ConnectionString; // null
string str = System.Configuration.ConfigurationManager.AppSettings["connectionstring"];// null
}
注意: MyMethod在線程池上運行:
ThreadPool.QueueUserWorkItem(new WaitCallback(MyMethod), new object[] { regionId });
你試過了嗎....
using System.Web.Configuration;
WebConfigurationManager.AppSettings["connectionstring"]
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