我发现了一个clearPool of oracleconnection ownclass

// C#
// Sample demonstrating the use of ClearPool API in OracleConnection class

using System;
using Oracle.DataAccess.Client;

class ClearPoolSample
{
  static void Main()
  {
    Console.WriteLine("Running ClearPool sample..." );
    // Set the connection string
    string strConn = "User Id=scott;Password=tiger;Data Source=oracle;" +
                     "Min pool size=5;";
    OracleConnection conn = new OracleConnection(strConn);

    // Open the connection
    conn.Open();

    // Clears the connection pool associated with connection 'conn'
    OracleConnection.ClearPool (conn);

    // This connection will be placed back into the pool
    conn.Close ();

    // Open the connection again to create additional connections in the pool
    conn.Open();

    // Create a new connection object
    OracleConnection connNew = new OracleConnection(strConn);

    // Clears the pool associated with Connection 'connNew'
    // Since the same connection string is set for both the connections,
    // connNew and conn, they will be part of the same connection pool.
    // We need not do an Open() on the connection object before calling
    // ClearPool
    OracleConnection.ClearPool (connNew);

    // cleanup
    conn.Close();
    Console.WriteLine("Done!");
  }
}