Java 如何测试我的连接池是否以正确的方式工作？

我正在使用ApacheAxis2实现一个SOAP客户端。由于SOAP客户端必须处理大量请求，因此我使用的是连接池

为此，我必须为从WSDL文件生成的存根设置一些传输层配置：

stub._getServiceClient().getOptions().setProperty(HTTPConstants.REUSE_HTTP_CLIENT, Constants.VALUE_TRUE);

MultiThreadedHttpConnectionManager connectionManager = new MultiThreadedHttpConnectionManager();
connectionManager.getParams().setDefaultMaxConnectionsPerHost(MAX_CONNECTIONS_PER_HOST);
connectionManager.closeIdleConnections(IDLE_CONNECTION_TIMEOUT);
HttpClient httpClient = new HttpClient(connectionManager);

stub._getServiceClient().getOptions().setProperty(HTTPConstants.CACHED_HTTP_CLIENT, httpClient);

---

我的客户似乎工作得很好。但是，我想知道如何测试连接池是否以正确的方式工作（即，创建的连接只有在空闲连接超时常量定义的时间之后才会被破坏）。有什么想法吗？

编写一个测试床应用程序，它将发出大量请求，并断言连接数永远不会超过MAX\u连接数。您可以通过将jconsole或VisualVM附加到进程来检查后者

---

您还可以研究如何在类/客户机上生成负载，然后绘制出几个数据点（但不确定如何访问创建的客户机连接数）。

基于JUnit 3.x的伪代码：

  setUp() {
    initialize connection manager;
    initialize connection by creating client;
  }

  tearDown() {
    close connection if necessary;
    close connection manager if necessary;
  }

  testConnectionOpen() {
    assert that connection is open;
    pause for time of idle connection timeout - 1 second;
    assert that connection **is still open**;
  }

  testConnectionClosed() {
    assert that connection is open;
    pause for time of idle connection timeout + 1 second;
    assert that connection **is closed**;
  }

---

增加1秒和减少1秒应根据连接管理器的灵敏度进行调整。

您可以通过更改参数进行测试

• 没有任何线程
• 池大小
• 启用\u连接\u池

---

/**并发搜索数*/
私有静态final int NO_OF_线程=20；
/**http连接池的大小*/
专用静态最终整数池大小=20；
/**启用或禁用连接池*/
私有静态布尔启用\连接\池=true；
/**关闭空闲连接时间（毫秒）
*如果连接在此时间处于空闲状态，则将释放连接*/
私有静态int关闭\空闲\连接\时间=1000；
公开无效测试（）
{
init（）；
长启动=System.currentTimeMillis（）；
List threads=new ArrayList（）；
for（int i=0；i

---

}

如果空闲超时后连接被破坏，该如何测试？

/** number of concurrent searches */
private static final int NO_OF_THREADS = 20;

/** size of the http connection pool */
private static final int POOL_SIZE = 20;

/** enabling or disabling the connection pool */
private static boolean ENABLE_CONNECTION_POOLING = true;

/** close idle connection time in milliseconds
 * connections will be release if they are idle for this time */
private static int CLOSE_IDLE_CONNECTION_TIME = 1000;

public void test()
{
    init();

    long start = System.currentTimeMillis();

    List<Thread> threads = new ArrayList<Thread>();
    for ( int i = 0; i < NO_OF_THREADS; i++ )
    {
        SimpleThread thread = new SimpleThread();
        thread.start();

        threads.add( thread );
    }

    for ( Thread t : threads )
    {
        try
        {
            t.join();
        }
        catch ( InterruptedException e )
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    logger.info( "************* Test Finish In *******************" + ( System.currentTimeMillis() - start ) + " ms" );
}

public void init()
{
    super.init();

    try
    {
        long t1 = System.currentTimeMillis();
        stub = new Viva_x0020_external_x0020_API_x0020_for_x0020_partnersStub( endUrl );

        if ( ENABLE_CONNECTION_POOLING )
        {
            stub._getServiceClient().getOptions().setProperty( HTTPConstants.REUSE_HTTP_CLIENT, Constants.VALUE_TRUE );
            MultiThreadedHttpConnectionManager connectionManager = new MultiThreadedHttpConnectionManager();
            connectionManager.getParams().setDefaultMaxConnectionsPerHost( POOL_SIZE );
            connectionManager.closeIdleConnections( CLOSE_IDLE_CONNECTION_TIME );
            HttpClient httpClient = new HttpClient( connectionManager );
            stub._getServiceClient().getOptions().setProperty( HTTPConstants.CACHED_HTTP_CLIENT, httpClient );
        }

        logger.info( "Connection Established in " + ( System.currentTimeMillis() - t1 ) + "ms" );
    }
    catch ( AxisFault e1 )
    {
        e1.printStackTrace();
        fail( "Error on creating the stub" );
    }

    logger.info( "Connection Initialized successfully" );
}

public class SimpleThread extends Thread
{
    public void run()
    {
        search();
    }
}

private static void search()
{
    logger.info( "$$$$$$$$$$$$$ Start the Search $$$$$$$$$$$$$$" );
    GetAirportConnections request = new GetAirportConnections();
    request.setAirportCode( "MTY" );

    GetAirportConnectionsResponse response = null;
    try
    {
        long t1 = System.currentTimeMillis();
        response = stub.getAirportConnections( request, getUserCredentials() );
        logger.info( "Results Retrived in " + ( System.currentTimeMillis() - t1 ) + "ms" );
    }
    catch ( Exception e )
    {
        logger.error( "------------------------- Connection Timeout --------------------------" );
        e.printStackTrace();
        fail( e.getMessage() );
    }

    Airport[] airports = response.getGetAirportConnectionsResult().getAirport();
    logger.info("Number of airports : " + airports.length );
}