如何从jmx客户端访问dynamicmbeans [英] How to access dynamicmbeans from a jmx client

问题描述

我正在为我们的产品中的JMX接口编写一些测试用例.我可以从标准MBean访问属性(遵循 sun教程).但是，我似乎无法访问动态MBean.这些属性在JConsole中是完全(可读/可写)的.

I am writing some test cases for the JMX interface in our product. I can access attributes from standard MBeans (following sun tutorial). However, I don't seem to be able to access dynamic MBeans. The attributes are fully (readable/writable) from JConsole.

JMXConnector jmxc = getJMXConnector();  // Takes care of our connection
MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();

ObjectName mbeanName = new ObjectName("com.xyz.prodname:type=LogManager");

// Up to this point, the logic is the same as the working logic.  In our working logic,
// DynamicMBean is replace with our MBean interface class.
DynamicMBean mbean = (DynamicMBean)JMX.newMBeanProxy(mbsc, mbeanName, DynamicMBean.class);
Object o = mbean.getAttribute("AttributeNameAsItAppearsInJConsole"); 

o应该是布尔值，但它为null.没有引发异常.

o should be a Boolean, but it is null. No exceptions are thrown.

我也尝试过对属性名称进行其他一些排列，但是我相信它应该是简单的名称，就像我在实现类中定义的一样.

I have also tried a few other permutations on the attribute name, but I believe it should be the simple name as I've defined it in the implementation class.

推荐答案

我发现您可以直接通过MBeanServerConnection对象获取动态MBean属性:

I've found that you can get to dynamic MBean attributes directly through the MBeanServerConnection object:

JMXConnector jmxc = getJMXConnector();  // Takes care of our connection
MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();

ObjectName mbeanName = new ObjectName("com.xyz.prodname:type=LogManager");

// This change demonstrates what must be done
Object result = mbsc.getAttribute(mbeanName, "AttributeNameAsItAppearsInJConsole");

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