数据库做了镜像后，Web应用中Web.config的数据库连接串配置

connectionStrings add name="TestDB" providerName="System.Data.SqlClient" connectionString="data source=主体数据库地址; Failover Partner =镜像数据库地址;Integrated Security=false;database=TestDB;user=sa;password=123456"/ /connectionString s

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