Xpages - 获取活动会话数（Lotus Domino 8.5.2） [英] Xpages - Get number of active sessions (Lotus Domino 8.5.2)

问题描述

如何获取Xpage中的活动会话数。我正在尝试使用托管bean，但它只返回一个奇怪的字符串。这是简单的代码：

How do I get the number of active sessions in Xpage. I'm trying to use managed beans but it just returns a weird string. Here's the simple code:

import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;

public class SessionCounterListener implements HttpSessionListener {

  private static int totalActiveSessions;

  public static int getTotalActiveSessions(){
    return totalActiveSessions;
  }

  public void sessionCreated(HttpSessionEvent arg0) {
    totalActiveSessions++;
    System.out.println("sessionCreated - add one session into counter");
  }

  public void sessionDestroyed(HttpSessionEvent arg0) {
    totalActiveSessions--;
    System.out.println("sessionDestroyed - deduct one session from counter");
  } 
}

我是从 here 。但是当我调用 SessionCounterListener.getTotalActiveSessions（）时，它只返回0（无论是否有人登录）。

I got this from here. But when I call SessionCounterListener.getTotalActiveSessions(), it only returns 0 (regardless if someone is logged in).

如果您有时间，可以查看我的测试数据库这里。

If you have the time, you can check out my test database here.

请帮帮我。非常感谢！

推荐答案

必须在应用程序中注入会话侦听器才能按需运行。否则，将永远不会调用sessionCreated / sessionDestroyed方法，并且始终返回0。但是XPages和传统JSF之间存在一些差异。看看这里：

A session listener must be injected in the application to get working as desired. Otherwise the sessionCreated/sessionDestroyed methods will never be called and 0is returned always. But there are some differences between XPages and "traditional" JSF. Have a look here:

http://www.openntf.org/projects/pmt.nsf/66d9103768cc2fed85256c59006b5433/00a38cdf382f4893862578b80082dd15!OpenDocument

或者查看< a href =http://www.openntf.org/internal/home.nsf/project.xsp?action=openDocument&name=XSP%20Starter%20Kit =nofollow> XSP Starterkit 。

编辑：

要添加会话侦听器，请执行以下操作：

To add a session Listener, do the following:

1. 切换到java透视图


2. 在Code / Java文件夹中，创建一个文件夹META- INF


3. 在此META-INF文件夹中，创建文件夹services


4. 在services文件夹中创建名为com的文件。 ibm.xsp.core.events.SessionListener


5. 在此文件中，添加类的全名：package.SessionCounterListener

1. Switch to java perspective
2. In the "Code/Java" folder, create a folder "META-INF"
3. In this META-INF folder, create a folder "services"
4. In the "services" folder create a file named "com.ibm.xsp.core.events.SessionListener"
5. In this file, add the full name of your class: package.SessionCounterListener

现在，应激活会话监听器。

Now, the session listener should be activated.

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