详细说下payara中amx的api使用
时间: 2024-03-21 13:41:38 浏览: 12
Payara中AMX(Application Management Extensions)API是用于管理J2EE应用程序和服务器的API。在Payara中使用AMX API,您需要按照以下步骤进行操作:
1. 首先,您需要在Payara Server上启用AMX。在Payara管理控制台上,转到“配置”>“server-config”>“AMX 配置”,然后将“启用 AMX”设置为“是”。
2. 然后,您需要在代码中添加AMX API库的依赖。您可以通过Maven或手动下载jar文件来添加它们。以下是Maven依赖项:
```
<dependency>
<groupId>fish.payara.extras</groupId>
<artifactId>payara-microprofile-extensions</artifactId>
<version>5.2021.7</version>
</dependency>
```
3. 确保您已经连接到Payara Server。以下是使用Java代码连接到Payara Server的示例:
```
String host = "localhost";
int port = 4848;
String username = "admin";
String password = "adminadmin";
JMXServiceURL serviceURL = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://" + host + ":" + port + "/jmxrmi");
JMXConnector jmxConnector = JMXConnectorFactory.connect(serviceURL, Map.of(JMXConnector.CREDENTIALS, new String[]{username, password}));
MBeanServerConnection connection = jmxConnector.getMBeanServerConnection();
```
4. 现在,您可以使用AMX API来管理Payara Server。以下是使用AMX API获取JVM垃圾回收器信息的示例:
```
ObjectName jvmObject = new ObjectName("amx:pp=/mon/server-mon[server],type=jvm-mon,category=monitor,name=jvm-mon");
ObjectName gcObject = (ObjectName) connection.getAttribute(jvmObject, "GCManager");
List<CompositeData> gcInfoList = (List<CompositeData>) connection.invoke(gcObject, "getCurrentGarbageCollectorInfo", null, null);
for (CompositeData gcInfo : gcInfoList) {
String gcName = (String) gcInfo.get("name");
String gcCause = (String) gcInfo.get("cause");
long gcStartTime = (Long) gcInfo.get("startTime");
long gcEndTime = (Long) gcInfo.get("endTime");
long gcDuration = (Long) gcInfo.get("duration");
System.out.println("Garbage Collector: " + gcName + ", Cause: " + gcCause + ", Start Time: " + gcStartTime + ", End Time: " + gcEndTime + ", Duration: " + gcDuration);
}
```
这是一个简单的示例,演示如何使用AMX API来获取JVM垃圾回收器信息。您可以使用类似的方法来管理Payara Server中的其他组件。