java - JMX连接客户端

Question

我想创建一个 JMX 客户端，它可以与我的服务器一起使用。我可以使用 jconsole 连接到我的服务器，但是如何使用 java 代码来做到这一点。

这是我的服务器代码:

            MBeanServer mbeanServer = ManagementFactory
                .getPlatformMBeanServer();

        //giving name for service
        ObjectName objectName = new ObjectName("bean:name=logService");
        RequiredModelMBean mbean = new RequiredModelMBean();

        mbean.setManagedResource(logService, "objectReference");

        Descriptor logStringDescriptor = new DescriptorSupport(
                new String[] { "name=logString",
                        "descriptorType=attribute",
                        "getMethod=getLogString", "setMethod=setLogString" });
        
        ModelMBeanAttributeInfo logStringAttribute = new ModelMBeanAttributeInfo(
                "logString", "java.lang.String", "String to be logged",
                true, true, false, logStringDescriptor);

        ModelMBeanOperationInfo getLogStringOperation = new ModelMBeanOperationInfo(
                "Get the log string",
                LoggerService.class.getMethod("getLogString"));
        
        ModelMBeanOperationInfo setLogStringOperation = new ModelMBeanOperationInfo(
                "Set the log string", LoggerService.class.getMethod(
                        "setLogString", String.class));

        ModelMBeanInfo mbeanInfo = new ModelMBeanInfoSupport(
                "LoggerService", "Logger Service",
                new ModelMBeanAttributeInfo[] { logStringAttribute }, null,
                new ModelMBeanOperationInfo[] { getLogStringOperation,
                        setLogStringOperation }, null);

        mbean.setModelMBeanInfo(mbeanInfo);
        mbeanServer.registerMBean(mbean, objectName);

Answer 1

很简单:)

            MBeanServer mbeanServer = ManagementFactory
                .getPlatformMBeanServer();


        //giving name for service
        ObjectName objectName = new ObjectName("bean:name=logService");

        String str = (String) mbeanServer.getAttribute (objectName, "logString");
        System.out.println(str);