使用JMX搭建WebLogic9监控软件(二)

 

使用JMX搭建WebLogic9监控软件(二)

程序实现下面提供了部分代码的节选。

1.提供JMXWebLogicHelper作为获取连接的工具。

public class JMXWebLogicHelper implements JMXHelper {
/** * 获取JMXMBeanServer连接
* * @param URI * Consts.URI_XXX
* @param protocol * 协议 weblogic为T3
* @param hostname * 主机IP地址
* @param port * 端口
* @param username
* 管理用户名 weblogic
* @param password * 密码
* @return * @throws IOException
* @throws MalformedURLException */

private MBeanServerConnection getConnection(String URI, String protocol, String hostname, int port, String username, String password) throws IOException, MalformedURLException
{
JMXServiceURL serviceURL = new JMXServiceURL(protocol, hostname, port, "/jndi/" + URI);
HashMap h = new HashMap();
h.put(Context.SECURITY_PRINCIPAL, username);
h.put(Context.SECURITY_CREDENTIALS, password);
h.put(JMXConnectorFactory.PROTOCOL_PROVIDER_PACKAGES, "weblogic.management.remote");
JMXConnector connector = JMXConnectorFactory.connect(serviceURL, h);
MBeanServerConnection connection = connector.getMBeanServerConnection();

return connection;
}

/** * 获取编辑连接 */
public MBeanServerConnection getEditConn(String protocol, String hostname, int port, String username, String password) throws IOException, MalformedURLException
{
return getConnection("weblogic.management.mbeanservers.edit", protocol, hostname, port, username, password);
}


/** * 获取运行时连接 */
public MBeanServerConnection getRuntimeConn(String protocol, String hostname, int port, String username, String password) throws IOException, MalformedURLException
{
return getConnection("weblogic.management.mbeanservers.runtime", protocol, hostname, port, username, password);
}

/** * 获取DomainRuntime */
public MBeanServerConnection getDomainRuntimeConn(String protocol, String hostname, int port, String username, String password) throws IOException, MalformedURLException
{
return getConnection("weblogic.management.mbeanservers.domainruntime", protocol, hostname, port, username, password);
}
}



2.获取weblogic服务器名称
MBeanServerConnection conn = JMXWebLogicHelper.getRuntimeConn("t3", "192.168.1.108", 7001, "weblogic", "weblogic"); ObjectName obn = new ObjectName( "com.bea:Name=RuntimeService,Type=weblogic.management.mbeanservers.runtime.RuntimeServiceMBean");
String serverName = String.valueOf(conn.getAttribute(obn, "ServerName"));
System.out.println(serverName);

如果出现java.net.MalformedURLException: Unsupported protocol: t3异常，则需要将weblogic.jar加到classpath中。

如果出现异常javax.management.InstanceNotFoundException:
请检查new ObjectName()中的名称和键值对是否正确，或者创建的MBeanServer连接是否和ObjectName中的不一致，造成无法找到 MBean的实例。

获取服务器是否处于生产模式生产模式的路径是
RuntimeServiceMBean->DomainConfiguration->ProductionModeEnabled，返回值是boolean。

public static void getProductMode()
{
MBeanServerConnection conn;
try { conn = JMXWebLogicHelper.getRuntimeConn("t3", "192.168.1.108", 7001, "weblogic", "weblogic");
ObjectName obn = new ObjectName( "com.bea:Name=RuntimeService,Type=weblogic.management.mbeanservers.runtime.RuntimeServiceMBean");
obn = (ObjectName) conn.getAttribute(obn, "DomainConfiguration");
boolean b = Boolean.getBoolean(String.valueOf(conn.getAttribute( obn, "ProductionModeEnabled")));
System.out.println("生产模式：" + b);

} catch (MalformedURLException e) {
e.printStackTrace(); } catch (IOException e) { e.printStackTrace();
} catch (MalformedObjectNameException e) {
e.printStackTrace();
} catch (NullPointerException e) {
e.printStackTrace(); }
catch (AttributeNotFoundException e) {
e.printStackTrace();
} catch (
InstanceNotFoundException e) {
e.printStackTrace();
} catch (MBeanException e) { e.printStackTrace();
} catch (ReflectionException e) {
e.printStackTrace();
}


监控当前JVM堆的大小从RuntimeServiceMBean->ServerRuntime->JVMRuntime->HeapSizeCurrent
MBeanServerConnection conn = JMXWebLogicHelper.getRuntimeConn("t3", "192.168.1.108", 7001, "weblogic", "weblogic"); ObjectName obn = new ObjectName( "com.bea:Name=RuntimeService,Type=weblogic.management.mbeanservers.runtime.RuntimeServiceMBean");
obn = (ObjectName) conn.getAttribute(obn, "ServerRuntime");
obn = (ObjectName) conn.getAttribute(obn, "JVMRuntime");
int b = Integer.parseInt(String.valueOf(conn.getAttribute( obn, "HeapSizeCurrent")));
System.out.println("当前堆大小bytes：" + b);


5.监控连接池运行状态监控连接池状态我们不能简单的应用上面的方法了，因为连接池可能会有多个，而我们只需要监控其中的某个或某几个，那么我们需要自己开发监控插件来完成对某个连接池对象的监控。在配置文件中，我们指定插件的位置，就可以实现定制监控了。

public String getValue(String info, String appserver, String monitorpoint, String attr) throws Exception
{
String[] infos = info.split("[|]");
// 用竖线分割上下文信息 conn = JMXWebLogicHelper.getRuntimeConn("t3", "192.168.1.108",7001, "weblogic", "weblogic");

ObjectName obn = new ObjectName( "com.bea:Name=RuntimeService,Type=weblogic.management.mbeanservers.runtime.RuntimeServiceMBean");
// 根对象 ObjectName dc = (ObjectName) conn .getAttribute(obnRoot, "ServerRuntime");

ObjectName[] apps = (ObjectName[]) conn.getAttribute(dc, "ApplicationRuntimes");

for (ObjectName app : apps) {
String name = (String) conn.getAttribute(app, "ApplicationName");
if (infos[0].equalsIgnoreCase(name))
{ // 如果监控的是这个web应用 ObjectName[] runtimes = (ObjectName[]) conn.getAttribute(app, "ComponentRuntimes");
for (ObjectName run : runtimes) {
String runName = (String) conn.getAttribute(run, "Name");
if (infos[1].equalsIgnoreCase(runName)) {
return String.valueOf(conn.getAttribute(run, attr));
}
}
}
}

return null;
}


可扩展性的保证，配置文件 ######################应用服务器监控设置################################ #应用服务器1的要监控的内容 appserver1.monitor.count=2 #获取服务名 #*************************************************** appserver1.monitor1=RuntimeServiceMBean.DomainConfiguration.ProductionModeEnabled appserver1.monitor1.name=生产模式 appserver1.monitor1.notice=true #*************************************************** appserver1.monitor2=custom appserver1.monitor2.name=连接池运行状态 appserver1.monitor2.class=com.wonder.monitor.impl.JDBCStateMonitor #在上面的自定义类中，表示context，前面是数据源的JNDI名字，后面是组件名
appserver1.monitor2.info=TEST|TEST appserver1.monitor2.attr=State appserver1.monitor2.notice=true