.net连接oracle的connectionString

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  <connectionStrings>
    <add name="ora_conn" connectionString="User Id=scott;Password=scott;Data Source=jerry;"/>
  </connectionStrings>

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string str_conn = ConfigurationManager.ConnectionStrings["ora_conn"].ToString();
OracleConnection conn = new OracleConnection(str_conn);
conn.Open();
conn.Close();