Question

我正在尝试连接到MBean服务器。我需要编写JMX客户端应用程序。这是用于客户端应用程序的代码。但我有一个与此相关的例外

无法检索RMIServer存根： javax.naming.ServiceUnavailableException [根异常是 java.rmi.ConnectException：连接拒绝主机：localhost; 嵌套异常是：

有人可以帮我解决这个问题。

import java.io.IOException;
import javax.management.MBeanServerConnection;
import javax.management.MBeanServerInvocationHandler;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;


public class SystemConfigClient {

    public static final String HOST = "localhost";
    public static final String PORT = "1099";


    public static void main(String[] args) throws IOException, MalformedObjectNameException {
        JMXServiceURL url =new JMXServiceURL("service:jmx:rmi:///jndi/rmi://" + HOST + ":" +PORT+ "/jmxrmi");

        JMXConnector jmxConnector = JMXConnectorFactory.connect(url);
        MBeanServerConnection mbeanServerConnection = jmxConnector.getMBeanServerConnection();
        //ObjectName should be same as your MBean name
        ObjectName mbeanName = new ObjectName("ifs.demo1.jmx:type=SystemConfig");

        //Get MBean proxy instance that will be used to make calls to registered MBean
        SystemConfigMBean mbeanProxy =
            (SystemConfigMBean) MBeanServerInvocationHandler.newProxyInstance(
                mbeanServerConnection, mbeanName, SystemConfigMBean.class, true);

        //let's make some calls to mbean through proxy and see the results.
        System.out.println("Current SystemConfig::" + mbeanProxy.doConfig());

        mbeanProxy.setSchemaName("NewSchema");
        mbeanProxy.setThreadCount(5);

        System.out.println("New SystemConfig::" + mbeanProxy.doConfig());

        //let's terminate the mbean by making thread count as 0
        mbeanProxy.setThreadCount(0);

        //close the connection
        jmxConnector.close();
    }

}

我使用以下参数运行此代码。

Dcom.sun.management.jmxremote Dcom.sun.management.jmxremote.port = 1099 Dcom.sun.management.jmxremote.authenticate = FALSE Dcom.sun.management.jmxremote.ssl =假

但我除了

线程“main”中的异常java.io.IOException：无法检索 RMIServer存根：javax.naming.ServiceUnavailableException [Root 异常是java.rmi.ConnectException：连接拒绝主机：本地主机;嵌套异常是：java.net.ConnectException：连接被拒绝：连接] at javax.management.remote.rmi.RMIConnector.connect（RMIConnector.java:338）在 javax.management.remote.JMXConnectorFactory.connect（JMXConnectorFactory.java:248）在 javax.management.remote.JMXConnectorFactory.connect（JMXConnectorFactory.java:207）在com.demo1.jmx.SystemConfigClient.main（SystemConfigClient.java:29）引起：javax.naming.ServiceUnavailableException [根异常是 java.rmi.ConnectException：连接拒绝主机：localhost; 嵌套异常是：java.net.ConnectException：拒绝连接：连接] com.sun.jndi.rmi.registry.RegistryContext.lookup（RegistryContext.java:101）在 com.sun.jndi.toolkit.url.GenericURLContext.lookup（GenericURLContext.java:185）在javax.naming.InitialContext.lookup（InitialContext.java:392）at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI（RMIConnector.java:1886）在 javax.management.remote.rmi.RMIConnector.findRMIServer（RMIConnector.java:1856）在 javax.management.remote.rmi.RMIConnector.connect（RMIConnector.java:257） ... 3更多引起：java.rmi.ConnectException：连接被拒绝主持人：localhost;嵌套异常是：java.net.ConnectException：连接被拒绝：连接在 sun.rmi.transport.tcp.TCPEndpoint.newSocket（TCPEndpoint.java:601）at at sun.rmi.transport.tcp.TCPChannel.createConnection（TCPChannel.java:198）在 sun.rmi.transport.tcp.TCPChannel.newConnection（TCPChannel.java:184）在sun.rmi.server.UnicastRef.newCall（UnicastRef.java:322）at sun.rmi.registry.RegistryImpl_Stub.lookup（未知来源）at com.sun.jndi.rmi.registry.RegistryContext.lookup（RegistryContext.java:97） ... 8更多引起：java.net.ConnectException：拒绝连接：在java.net.PlainSocketImpl.socketConnect（Native Method）连接 java.net.PlainSocketImpl.doConnect（PlainSocketImpl.java:333）at java.net.PlainSocketImpl.connectToAddress（PlainSocketImpl.java:195）在java.net.PlainSocketImpl.connect（PlainSocketImpl.java:182）at java.net.SocksSocketImpl.connect（SocksSocketImpl.java:366）at java.net.Socket.connect（Socket.java:529）at java.net.Socket.connect（Socket.java:478）at java.net.Socket。（Socket.java:375）at java.net.Socket。（Socket.java:189）at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket（RMIDirectSocketFactory.java:22）在 sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket（RMIMasterSocketFactory.java:128） at sun.rmi.transport.tcp.TCPEndpoint.newSocket（TCPEndpoint.java:595） ... 13更多Java结果：1

Answer 1

您是否注意到您使用的是“D”而不是“-D”的VM参数？或者只是一个错字？正确的是：

-Dcom.sun.management.jmxremote 
-Dcom.sun.management.jmxremote.port=1099 
-Dcom.sun.management.jmxremote.authenticate=false 
-Dcom.sun.management.jmxremote.ssl=false

创建RMI连接器客户端

1 个答案: