Java JMX获得登录用户 [英] Java JMX get the logged in user

问题描述

我有一个由JVM进程启动的JMX服务器，可以选择对其进行保护(目前还没有安全保护，因此我准备考虑采用任何可扩展的方式).例如，作为一种选择，我查看了官方教程，现在可以使用用户/密码身份验证了. MBean是通过spring部署的(使用注释方法).

I have a JMX server started by JVM process that can be optionally secured (for now its not, so I'm ready to consider any extensible way for it). For example as an option I looked at official tutorial and its ok for now to use user/password authentication. The MBeans are deployed via spring (annotations approach is used).

现在，我想从我的MBean中获得用户名，以执行其他一些操作.完全可以使用JMX技术吗?如果是，怎么办? :)

Now I would like to get from within my MBean the user name for some additional actions. Is it possible to do in JMX technology at all? If Yes how? :)

示例:

public class MyMBean {

    public void myOp() {

        String userName = ... ?;  // or whatever object that can bring me the name

        makeSomethingWithUserName ( userName );

        doMyStuffHere();
    }
}

我找到了本教程，但它似乎是特定于玻璃鱼的，我正在寻找用于基于纯Java的解决方案.

I've found this tutorial but it seems to be glassfish specific and I'm looking for plain java based solution.

非常感谢，祝您有愉快的一天

Thanks a lot and have a nice day

推荐答案

这应该可行，但是只有在用户通过身份验证时才填写主题.本地JMX连接将提供一个空的Subject！

This should work, but the Subject is only filled if the user authenticated. A local JMX connection will give an empty Subject!

private String getUserName() {
    AccessControlContext acc = AccessController.getContext();
    Subject subject = Subject.getSubject(acc);
    if (subject != null)  {
    Set<JMXPrincipal> principals = subject.getPrincipals(JMXPrincipal.class);
    JMXPrincipal principal = principals.iterator().next();
    return principal.getName();
    }
    return "";
}

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