不支持的协议：尝试获取 weblogic 中的线程数时出现 t3 异常

Question

我正在使用 JMX 获取 Weblogic 中的线程数，但发生错误。 这是我的代码：

import java.util.Hashtable;
import javax.management.MBeanServer;
import javax.management.MBeanServerConnection;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import javax.naming.Context;
import javax.swing.plaf.basic.BasicInternalFrameTitlePane.MaximizeAction;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.net.MalformedURLException;

public class JMXClient {
         private static MBeanServerConnection connection;
         private static JMXConnector connector;
         private static ObjectName service;
    //Update correct port
    private static String port = "7001";
    //Update localhost if server is accessed remotely   
        private static String url = "t3://localhost:7001";
    // Update hostname if server is accessed remotely
        private static String hostname = "localhost";

        private static String username = "weblogic";
         private static String password = "12345678";
    // server name can differ from host name
    private static String serverName = "AdminServer";
         /*
         * Initialize connection to the Runtime MBean Server
         */
        private static void init() throws IOException, MalformedURLException {
            String protocol = "t3";
            Integer portInteger = Integer.valueOf(port);
            int port = portInteger.intValue();
            String jndiroot = "/jndi/";
            String mserver = "weblogic.management.mbeanservers.runtime";
            //JMXServiceURL serviceURL = new JMXServiceURL(url);
            JMXServiceURL serviceURL = new JMXServiceURL(protocol, hostname, port, jndiroot + mserver);
            Hashtable env = new Hashtable();
            env.put(Context.SECURITY_PRINCIPAL, username);
            env.put(Context.SECURITY_CREDENTIALS, password);
            env.put(JMXConnectorFactory.PROTOCOL_PROVIDER_PACKAGES, "weblogic.management.runtime.JRockitRuntimeMBean");
            connector = JMXConnectorFactory.connect(serviceURL, env);
            connection = connector.getMBeanServerConnection();
             try {
                             service = new ObjectName("com.bea:Name="+serverName + ",Type=ServerRuntime");
        } catch (MalformedObjectNameException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }       
        public static void getTotalNumberOfThreads() {
            try {
                init();
                Long totalNumberOfThreads = (Long) connection.getAttribute(service,"TotalNumberOfThreads");
                System.out.println("totalNumberOfThreads is: " + totalNumberOfThreads);
                connection.invoke(service, "start", new Object[] {}, new String[] {});
            } catch(Exception e) {
                e.printStackTrace();
            }
        }             
        public static void main(String[] args) {
        // Invoke required methods
                   JMXClient.getTotalNumberOfThreads();
            }
}

错误是：

java.net.MalformedURLException: Unsupported protocol: t3
at javax.management.remote.JMXConnectorFactory.newJMXConnector(Unknown Source)
at javax.management.remote.JMXConnectorFactory.connect(Unknown Source)

我不知道为什么会发生这种情况。 当我使用

weblogic.management.remote

获取应用程序服务器的状态时，一切正常，但对于线程数，它没有答案。

Answer 1

我将所有这五个罐子放入类路径中以解决类似的问题：

    <include name="wlclient.jar" />
    <include name="wljmsclient.jar" />
    <include name="wls-api.jar"/>
    <include name="wljmxclient.jar"/>
    <include name="wlconnector.jar"/>

Answer 2

实际上你只需要以下罐子： \Oracle_Home\wlserver\server\lib\wljmxclient.jar \Oracle_Home\wlserver\server\lib\weblogic.jar

它可以与我一起对抗默认和 SQL 提供程序。

Answer 3

我在 WLS12.2.1.3 中遇到了同样的问题，仅将 /wlserver/server/lib/wlthint3client.jar 文件添加到库后修复了。

Answer 4

也适用于 Weblogic 12.2.1.4 wlthint3client.jar 就足够了。