```java
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Service;
import java.util.Arrays;
@Service
public class BeanListService {
@Autowired
private ApplicationContext applicationContext;
/*
* 列出所有的 Bean 名稱
*/
public void listAllBeans() {
String[] beanNames = applicationContext.getBeanDefinitionNames();
Arrays.sort(beanNames);
System.out.println("List of Beans:");
for (String beanName : beanNames) {
System.out.println(beanName);
}
}
public void listAllDataSource() {
// 使用 getBeansOfType 來獲取所有 DataSource.class 的實例
Map<String, DataSource> dataSourceBeans = context.getBeansOfType(DataSource.class);
// 列印所有的 DataSource
System.out.println("List of DataSource beans:");
dataSourceBeans.forEach((beanName, dataSource) -> {
System.out.println("Bean Name: " + beanName);
// 這裡你可以對每個 DataSource 執行需要的操作
});
}
}
```
```java
import javax.management.MBeanInfo;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import java.lang.management.ManagementFactory;
import java.util.Set;
public class ListAllMBeans {
public static void main(String[] args) {
// 獲取平台 MBeanServer 實例
MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
// 獲取所有已知的 MBean ObjectName
Set<ObjectName> objectNames = mBeanServer.queryNames(null, null);
// 列出所有已知的 MBean
System.out.println("List of Known MBeans:");
for (ObjectName objectName : objectNames) {
try {
MBeanInfo mBeanInfo = mBeanServer.getMBeanInfo(objectName);
System.out.println("MBean: " + objectName);
System.out.println(" - Class: " + mBeanInfo.getClassName());
// 你可以根據需要打印更多有關 MBean 的信息
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
```