private static void connect(String pid, String address) throws Exception {
    if (address == null) {
        throw new RuntimeException("Local connector address for " +
                                   pid + " is null");
    }

    System.out.println("Connect to process " + pid + " via: " + address);

    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector c = JMXConnectorFactory.connect(url);
    MBeanServerConnection server = c.getMBeanServerConnection();

    System.out.println("Connected.");

    RuntimeMXBean rt = newPlatformMXBeanProxy(server,
        RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println(rt.getName());

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

private MBeanInfo testMBeanForDatasource() throws Exception {
    Map<String, String[]> env = new HashMap<>();
    String[] credentials = { "admin", "admin" };
    env.put(JMXConnector.CREDENTIALS, credentials);
    try {
        String url = "service:jmx:rmi://localhost:12311/jndi/rmi://localhost:11199/jmxrmi";
        JMXServiceURL jmxUrl = new JMXServiceURL(url);
        JMXConnector jmxConnector = JMXConnectorFactory.connect(jmxUrl, env);
        MBeanServerConnection mBeanServer = jmxConnector.getMBeanServerConnection();
        ObjectName mbeanObject = new ObjectName(dataSourceName + ",-1234:type=DataSource");
        MBeanInfo mBeanInfo = mBeanServer.getMBeanInfo(mbeanObject);
        return mBeanInfo;
    } catch (MalformedURLException | MalformedObjectNameException | IntrospectionException | ReflectionException e) {
        throw new AxisFault("Error while connecting to MBean Server " + e.getMessage(), e);
    }
}
 

private static void dotest(JMXServiceURL url, MBeanServer mbs)
    throws Exception {
    JMXConnectorServer server = null;
    JMXConnector client = null;

    server = JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
    server.start();
    JMXServiceURL outputAddr = server.getAddress();
    System.out.println("Server started ["+ outputAddr+ "]");

    client = JMXConnectorFactory.newJMXConnector(outputAddr, null);

    client.connect();
    System.out.println("Client connected");

    MBeanServerConnection connection
        = client.getMBeanServerConnection();

    System.out.println(connection.getDefaultDomain());
}
 

private static void dotest(JMXServiceURL url, MBeanServer mbs)
    throws Exception {
    JMXConnectorServer server = null;
    JMXConnector client = null;

    server = JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
    server.start();
    JMXServiceURL outputAddr = server.getAddress();
    System.out.println("Server started ["+ outputAddr+ "]");

    client = JMXConnectorFactory.newJMXConnector(outputAddr, null);

    client.connect();
    System.out.println("Client connected");

    MBeanServerConnection connection
        = client.getMBeanServerConnection();

    System.out.println(connection.getDefaultDomain());
}
 

private static void connect(String pid, String address) throws Exception {
    if (address == null) {
        throw new RuntimeException("Local connector address for " +
                                   pid + " is null");
    }

    System.out.println("Connect to process " + pid + " via: " + address);

    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector c = JMXConnectorFactory.connect(url);
    MBeanServerConnection server = c.getMBeanServerConnection();

    System.out.println("Connected.");

    RuntimeMXBean rt = newPlatformMXBeanProxy(server,
        RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println(rt.getName());

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

public static void main(String[] args) throws Exception {
    MBeanServer mbs = MBeanServerFactory.newMBeanServer();
    Sender sender = new Sender();
    mbs.registerMBean(sender, testObjectName);
    JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://");
    JMXConnectorServer cs =
        JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
    cs.start();
    JMXServiceURL addr = cs.getAddress();
    JMXConnector cc = JMXConnectorFactory.connect(addr);
    try {
        test(mbs, cs, cc);
    } finally {
        cc.close();
        cs.stop();
    }
}
 

public MBeanServerConnection getMBeanServerConnection(String user,
        String password) throws Exception {
    
    HashMap<String,String[]> env = new HashMap<String,String[]>();
    if (user != null) {
       String[] credentials = new String[] {
               user, password };
       env.put("jmx.remote.credentials", credentials);
    }
    
    JMXConnector jmxc = JMXConnectorFactory.connect(url, env);
    MBeanServerConnection jmxConn =  jmxc.getMBeanServerConnection();
    
    Map<MBeanServerConnection,JMXConnector> conns = connections.get();
    if (conns == null) {
        conns = new HashMap<MBeanServerConnection,JMXConnector>();
        connections.set(conns);
    }
    
    conns.put(jmxConn, jmxc);
    
    return jmxConn;
}
 

private static void tryConnect(int port, boolean shouldSucceed) throws Exception {
    String jmxUrlStr =
        String.format(
            "service:jmx:rmi:///jndi/rmi://localhost:%d/jmxrmi",
            port);
    JMXServiceURL url = new JMXServiceURL(jmxUrlStr);
    HashMap<String, ?> env = new HashMap<>();

    boolean succeeded;
    try {
        JMXConnector c = JMXConnectorFactory.connect(url, env);
        c.getMBeanServerConnection();
        succeeded = true;
    } catch(Exception ex) {
        succeeded = false;
    }
    if (succeeded && !shouldSucceed) {
        throw new Exception("Could connect to agent, but should not have been possible");
    }
    if (!succeeded && shouldSucceed) {
        throw new Exception("Could not connect to agent");
    }
}
 

private static void connect(String pid, String address) throws Exception {
    if (address == null) {
        throw new RuntimeException("Local connector address for " +
                                   pid + " is null");
    }

    System.out.println("Connect to process " + pid + " via: " + address);

    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector c = JMXConnectorFactory.connect(url);
    MBeanServerConnection server = c.getMBeanServerConnection();

    System.out.println("Connected.");

    RuntimeMXBean rt = newPlatformMXBeanProxy(server,
        RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println(rt.getName());

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

private static void connect(String pid, String address) throws Exception {
    if (address == null) {
        throw new RuntimeException("Local connector address for " +
                                   pid + " is null");
    }

    System.out.println("Connect to process " + pid + " via: " + address);

    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector c = JMXConnectorFactory.connect(url);
    MBeanServerConnection server = c.getMBeanServerConnection();

    System.out.println("Connected.");

    RuntimeMXBean rt = newPlatformMXBeanProxy(server,
        RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println(rt.getName());

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

public static void main(String[] args) throws Exception {
    MBeanServer mbs = MBeanServerFactory.newMBeanServer();
    Sender sender = new Sender();
    mbs.registerMBean(sender, testObjectName);
    JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://");
    JMXConnectorServer cs =
        JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
    cs.start();
    JMXServiceURL addr = cs.getAddress();
    JMXConnector cc = JMXConnectorFactory.connect(addr);
    try {
        test(mbs, cs, cc);
    } finally {
        cc.close();
        cs.stop();
    }
}
 

/**
 * Instantiates a new JMXExecutor targeting the VM indicated by the given host/port combination or a full JMX
 * Service URL
 *
 * @param target a host/port combination on the format "host:port" or a full JMX Service URL of the target VM
 */
public JMXExecutor(String target) {
    String urlStr;

    if (target.matches("^\\w[\\w\\-]*(\\.[\\w\\-]+)*:\\d+$")) {
        /* Matches "hostname:port" */
        urlStr = String.format("service:jmx:rmi:///jndi/rmi://%s/jmxrmi", target);
    } else if (target.startsWith("service:")) {
        urlStr = target;
    } else {
        throw new IllegalArgumentException("Could not recognize target string: " + target);
    }

    try {
        JMXServiceURL url = new JMXServiceURL(urlStr);
        JMXConnector c = JMXConnectorFactory.connect(url, new HashMap<>());
        mbs = c.getMBeanServerConnection();
    } catch (IOException e) {
        throw new CommandExecutorException("Could not initiate connection to target: " + target, e);
    }
}
 

private static void connect(String pid, String address) throws Exception {
    if (address == null) {
        throw new RuntimeException("Local connector address for " +
                                   pid + " is null");
    }

    System.out.println("Connect to process " + pid + " via: " + address);

    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector c = JMXConnectorFactory.connect(url);
    MBeanServerConnection server = c.getMBeanServerConnection();

    System.out.println("Connected.");

    RuntimeMXBean rt = newPlatformMXBeanProxy(server,
        RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println(rt.getName());

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

private static void tryConnect(int port, boolean shouldSucceed) throws Exception {
    String jmxUrlStr =
        String.format(
            "service:jmx:rmi:///jndi/rmi://localhost:%d/jmxrmi",
            port);
    JMXServiceURL url = new JMXServiceURL(jmxUrlStr);
    HashMap<String, ?> env = new HashMap<>();

    boolean succeeded;
    try {
        JMXConnector c = JMXConnectorFactory.connect(url, env);
        c.getMBeanServerConnection();
        succeeded = true;
    } catch(Exception ex) {
        succeeded = false;
    }
    if (succeeded && !shouldSucceed) {
        throw new Exception("Could connect to agent, but should not have been possible");
    }
    if (!succeeded && shouldSucceed) {
        throw new Exception("Could not connect to agent");
    }
}
 

private MBeanInfo testMBeanForDatasource() throws Exception {
    Map<String, String[]> env = new HashMap<>();
    String[] credentials = { "admin", "admin" };
    env.put(JMXConnector.CREDENTIALS, credentials);
    try {
        String url = "service:jmx:rmi://localhost:12311/jndi/rmi://localhost:11199/jmxrmi";
        JMXServiceURL jmxUrl = new JMXServiceURL(url);
        JMXConnector jmxConnector = JMXConnectorFactory.connect(jmxUrl, env);
        MBeanServerConnection mBeanServer = jmxConnector.getMBeanServerConnection();
        ObjectName mbeanObject = new ObjectName(dataSourceName + ",-1234:type=DataSource");
        MBeanInfo mBeanInfo = mBeanServer.getMBeanInfo(mbeanObject);
        return mBeanInfo;
    } catch (MalformedURLException | MalformedObjectNameException | IntrospectionException |
            ReflectionException e) {
        throw new AxisFault("Error while connecting to MBean Server " + e.getMessage(), e);
    }
}
 

private static void connect(String pid, String address) throws Exception {
    if (address == null) {
        throw new RuntimeException("Local connector address for " +
                                   pid + " is null");
    }

    System.out.println("Connect to process " + pid + " via: " + address);

    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector c = JMXConnectorFactory.connect(url);
    MBeanServerConnection server = c.getMBeanServerConnection();

    System.out.println("Connected.");

    RuntimeMXBean rt = newPlatformMXBeanProxy(server,
        RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println(rt.getName());

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

private static void tryConnect(int port, boolean shouldSucceed) throws Exception {
    String jmxUrlStr =
        String.format(
            "service:jmx:rmi:///jndi/rmi://localhost:%d/jmxrmi",
            port);
    JMXServiceURL url = new JMXServiceURL(jmxUrlStr);
    HashMap<String, ?> env = new HashMap<>();

    boolean succeeded;
    try {
        JMXConnector c = JMXConnectorFactory.connect(url, env);
        c.getMBeanServerConnection();
        succeeded = true;
    } catch(Exception ex) {
        succeeded = false;
    }
    if (succeeded && !shouldSucceed) {
        throw new Exception("Could connect to agent, but should not have been possible");
    }
    if (!succeeded && shouldSucceed) {
        throw new Exception("Could not connect to agent");
    }
}
 

public static void getVmInfo() throws Exception {
    VirtualMachine vm = VirtualMachine.attach(String.valueOf(10248));
    // 获得连接地址
    Properties properties = vm.getAgentProperties();
    String address = (String) properties.get("com.sun.management.jmxremote.localConnectorAddress");
    System.out.println(address);
    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector connector = JMXConnectorFactory.connect(url);
    RuntimeMXBean rmxb = ManagementFactory.newPlatformMXBeanProxy(connector.getMBeanServerConnection(), "java.lang:type=Runtime", RuntimeMXBean.class);
    MemoryMXBean memoryMXBean = ManagementFactory.newPlatformMXBeanProxy(connector.getMBeanServerConnection(), ManagementFactory.MEMORY_MXBEAN_NAME, MemoryMXBean.class);
    OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.newPlatformMXBeanProxy(connector.getMBeanServerConnection(), ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME, OperatingSystemMXBean.class);
    System.out.println(operatingSystemMXBean.getSystemCpuLoad());
    MemoryUsage memoryUsage = memoryMXBean.getHeapMemoryUsage();
    Map<String, Object> result = new HashMap<>();
    //堆提交内存
    result.put("heapCommitedMemory", memoryUsage.getCommitted() / KB);
    //当前堆内存
    result.put("heapUsedMemory", memoryUsage.getUsed() / KB);
    //最大堆大小
    result.put("heapMaxMemory", memoryUsage.getMax() / KB);

    memoryUsage = memoryMXBean.getNonHeapMemoryUsage();
    //非堆提交内存
    result.put("nonHeapCommitedMemory", memoryUsage.getCommitted() / KB);
    //当前非堆内存
    result.put("nonHeapUsedMemory", memoryUsage.getUsed() / KB);
    //最大非堆大小
    result.put("nonHeapMaxMemory", memoryUsage.getMax() / KB);
    System.out.println(result);
    vm.detach();
}
 

private void checkServerConnection(MBeanServer hostedServer) throws IOException, MalformedURLException {
	// Try to connect using client.
	JMXServiceURL serviceURL = new JMXServiceURL(ConnectorServerFactoryBean.DEFAULT_SERVICE_URL);
	JMXConnector connector = JMXConnectorFactory.connect(serviceURL);

	assertNotNull("Client Connector should not be null", connector);

	// Get the MBean server connection.
	MBeanServerConnection connection = connector.getMBeanServerConnection();
	assertNotNull("MBeanServerConnection should not be null", connection);

	// Test for MBean server equality.
	assertEquals("Registered MBean count should be the same", hostedServer.getMBeanCount(),
			connection.getMBeanCount());
}
 

public boolean init(){
    jmxURL = "service:jmx:rmi:///jndi/rmi://" + ipAndPort + "/jmxrmi";
    try {
        JMXServiceURL serviceURL = new JMXServiceURL(jmxURL);
        JMXConnector connector = JMXConnectorFactory
                .connect(serviceURL, null);
        conn = connector.getMBeanServerConnection();
        if (conn == null) {
            return false;
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return true;
}
 

/**
 * Connects to the JMX agent in the local process.
 * 
 * @throws ConnectionFailedException if there was a failure to connect to the local JMX connector in the process
 * @throws IOException if the JDK management agent cannot be found and loaded
 */
void connect() throws ConnectionFailedException, IOException {
  try {
    final JMXServiceURL jmxUrl = getJMXServiceURL();
    this.jmxc = JMXConnectorFactory.connect(jmxUrl);
    this.server = this.jmxc.getMBeanServerConnection();
  } catch (AttachNotSupportedException e) {
    throw new ConnectionFailedException("Failed to connect to process '" + this.pid + "'", e);
  }
}
 

/**
 * 获取指定程序的jvm 信息
 *
 * @param pId pId
 * @return 没有运行或者获取数据
 * @throws Exception 异常
 * @see OperatingSystemMXBean
 */
public static OperatingSystemMXBean getOperatingSystemMXBean(String pId) throws Exception {
    VirtualMachine virtualMachine = getVirtualMachine(Integer.parseInt(pId));
    try {
        JMXServiceURL url = getJMXServiceURL(virtualMachine);
        if (url == null) {
            return null;
        }
        JMXConnector jmxConnector = JMXConnectorFactory.connect(url, null);
        MBeanServerConnection mBeanServerConnection = jmxConnector.getMBeanServerConnection();
        return ManagementFactory.newPlatformMXBeanProxy(mBeanServerConnection, ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME, OperatingSystemMXBean.class);
    } finally {
        virtualMachine.detach();
    }
}
 

public MBeanServerConnection call() {
    MBeanServer mbs = MBeanServerFactory.newMBeanServer();
    try {
        JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://");
        JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(
                url, null, mbs);
        cs.start();
        JMXServiceURL addr = cs.getAddress();
        connector = JMXConnectorFactory.connect(addr);
        return connector.getMBeanServerConnection();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}
 

private static void testWithException(boolean send)
throws Exception {
    ClassLoader zoobyCL = new ZoobyClassLoader();
    Class<?> zoobyClass = Class.forName("Zooby", false, zoobyCL);
    Object zooby = zoobyClass.newInstance();

    JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///");
    JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(url, null, pmbs);
    cs.start();
    JMXServiceURL addr = cs.getAddress();
    JMXConnector cc = JMXConnectorFactory.connect(addr);
    MBeanServerConnection mbsc = cc.getMBeanServerConnection();

    Object rzooby;
    if (send) {
        System.out.println("Sending object...");
        mbsc.setAttribute(getSetName, new Attribute("It", zooby));
        rzooby = getSetInstance.getIt();
    } else {
        System.out.println("Receiving object...");
        getSetInstance.setIt(zooby);
        rzooby = mbsc.getAttribute(getSetName, "It");
    }

    if (!rzooby.getClass().getName().equals("Zooby")) {
        throw new Exception("FAILED: remote object is not a Zooby");
    }
    if (rzooby.getClass().getClassLoader() ==
            zooby.getClass().getClassLoader()) {
        throw new Exception("FAILED: same class loader: " +
                zooby.getClass().getClassLoader());
    }

    cc.close();
    cs.stop();
}
 

@Test
@RunAsClient
public void testRemoteConnection() throws Exception {
    String urlString = "service:jmx:remote://localhost:4447";

    JMXServiceURL serviceURL = new JMXServiceURL(urlString);
    JMXConnector jmxConnector = JMXConnectorFactory.connect(serviceURL, null);
    MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();

    int count = connection.getMBeanCount();
    assertThat(count).isGreaterThan(1);

    jmxConnector.close();
}
 

@PostConstruct
public void start() {
    try {
        final JMXServiceURL url = new JMXServiceURL("service:jmx:attach://" + Info.getPid());
        final JMXConnector jmxConn = JMXConnectorFactory.connect(url);
        client = jmxConn.getMBeanServerConnection();
        enabled.set(true);
    } catch (Exception e) {
        if (logger.isDebugEnabled()) {
            logger.debug(ExceptionUtils.getStackTrace(e));
        }
    }
}
 

public MBeanServerConnection call() {
    MBeanServer mbs = MBeanServerFactory.newMBeanServer();
    try {
        JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://");
        JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(
                url, null, mbs);
        cs.start();
        JMXServiceURL addr = cs.getAddress();
        connector = JMXConnectorFactory.connect(addr);
        return connector.getMBeanServerConnection();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}
 

public MBeanServerConnection call() {
    MBeanServer mbs = MBeanServerFactory.newMBeanServer();
    try {
        JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://");
        JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(
                url, null, mbs);
        cs.start();
        JMXServiceURL addr = cs.getAddress();
        connector = JMXConnectorFactory.connect(addr);
        return connector.getMBeanServerConnection();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}
 

public MBeanServerConnection call() {
    MBeanServer mbs = MBeanServerFactory.newMBeanServer();
    try {
        JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://");
        JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(
                url, null, mbs);
        cs.start();
        JMXServiceURL addr = cs.getAddress();
        connector = JMXConnectorFactory.connect(addr);
        return connector.getMBeanServerConnection();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}
 

public static void main(String[] args) throws Exception {
    JMXServiceURL inputAddr =
        new JMXServiceURL("service:jmx:iiop://");
    JMXConnectorServer s;
    try {
        s = JMXConnectorServerFactory.newJMXConnectorServer(inputAddr, null, null);
    } catch (java.net.MalformedURLException x) {
        try {
            Class.forName("javax.management.remote.rmi._RMIConnectionImpl_Tie");
            throw new RuntimeException("MalformedURLException thrown but iiop appears to be supported");
        } catch (ClassNotFoundException expected) { }
        System.out.println("IIOP protocol not supported, test skipped");
        return;
    }
    MBeanServer mbs = MBeanServerFactory.createMBeanServer();
    mbs.registerMBean(s, new ObjectName("a:b=c"));
    s.start();
    JMXServiceURL outputAddr = s.getAddress();
    if (!outputAddr.getURLPath().startsWith("/ior/IOR:")) {
        throw new RuntimeException("URL path should start with \"/ior/IOR:\": " +
                                   outputAddr);
    }
    System.out.println("IIOP URL path looks OK: " + outputAddr);
    JMXConnector c = JMXConnectorFactory.connect(outputAddr);
    System.out.println("Successfully got default domain: " +
                       c.getMBeanServerConnection().getDefaultDomain());
    c.close();
    s.stop();
}