java - Spring MBean客户端认为MBean服务是RMI连接

Question

我在将自己的 Spring MBean 客户端连接到“Hello World!”时遇到问题。服务如JMX examples from Oracle中所示。该服务和包含的客户端工作正常。

我认为这与 RMI 连接在期待其他内容时返回有关...但我不知道解决方案是什么，或者即使这是一个正确的推论。

或者我是否以某种方式使用了“错误的”MBeanServerConnectionFactoryBean？

有什么想法吗？

这是我对该 bean 的 spring 配置:

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<bean id="mBeanServerClient"
      class="org.springframework.jmx.support.MBeanServerConnectionFactoryBean">
    <property name="serviceUrl"
              value="service:jmx:rmi://localhost/jndi/rmi://localhost:9999/jmxrmi" />
</bean>

<bean id="jmxClient"
      class="com.foo.jmx.MBeanPollingClient">
    <property name="mbeanServerConnection"
              ref="mBeanServerClient" />
</bean>
</beans>

这是我的实现代码:

import org.springframework.jmx.support.MBeanServerConnectionFactoryBean;

public class MBeanPollingClient {

    private MBeanServerConnectionFactoryBean mbeanServerConnection = null;

    public void setMbeanServerConnection ( MBeanServerConnectionFactoryBean m )
    {
        mbeanServerConnection = m;
    }

    public MBeanServerConnectionFactoryBean getMbeanServerConnection ( )
    {
        return mbeanServerConnection;
    }

}

我收到的错误:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jmxClient' defined in class path resource [jmx-beans.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection' to required type 'org.springframework.jmx.support.MBeanServerConnectionFactoryBean' for property 'mbeanServerConnection'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection] to required type [org.springframework.jmx.support.MBeanServerConnectionFactoryBean] for property 'mbeanServerConnection': no matching editors or conversion strategy found

Answer 1

Spring会给你一个由工厂提供的MBeanServerConnection。要修复错误，只需更改

private MBeanServerConnectionFactoryBean mbeanServerConnection;

至

private MBeanServerConnection mbeanServerConnection;