为了以后维护程序的方便在WebService的Web.config中设置连接数据库。
<connectionStrings>
<add name="dbstr" connectionString="data source=HNPOWER; User Id=DCR; Password=DCR; Integrated Security=no;" />
</connectionStrings>
在WebService调用connectionString
using System.Configuration;
ConnectionStringSetting dbstr = ConfigurationManager.ConnectionStrings["dbstr"];
con.ConnectionString = dbstr.ConnectionString;
注意：webservice只能解析本地路径名。