java - 关于在下面的应用程序中添加 spring jmx 功能

Question

我是 JMX 世界的新手，到目前为止，我探索的主要是它用于监视和管理应用程序，因为我对 spring JMX 非常感兴趣，所以我开发了这个接口(interface)和类，你能告诉我如何使JMX特别与spring完美配合吗，为此需要在spring xml中进行哪些设置...

package dustin.jmx.modelmbeans;

/**
 * Interface to expose Model MBean via Spring.
 */
public interface SimpleCalculatorIf
{
   public int add(final int augend, final int addend);

   public int subtract(final int minuend, final int subtrahend);

   public int multiply(final int factor1, final int factor2);

   public double divide(final int dividend, final int divisor);
} 

下面是类..

package dustin.jmx.modelmbeans;


public class SimpleCalculator implements SimpleCalculatorIf
{
   /**
    * Calculate the sum of the augend and the addend.
    *
    * @param augend First integer to be added.
    * @param addend Second integer to be added.
    * @return Sum of augend and addend.
    */
   public int add(final int augend, final int addend)
   {
      return augend + addend;
   }

   /**
    * Calculate the difference between the minuend and subtrahend.
    * 
    * @param minuend Minuend in subtraction operation.
    * @param subtrahend Subtrahend in subtraction operation.
    * @return Difference of minuend and subtrahend.
    */
   public int subtract(final int minuend, final int subtrahend)
   {
      return minuend - subtrahend;
   }

   /**
    * Calculate the product of the two provided factors.
    *
    * @param factor1 First integer factor.
    * @param factor2 Second integer factor.
    * @return Product of provided factors.
    */
   public int multiply(final int factor1, final int factor2)
   {
      return factor1 * factor2;
   }

   /**
    * Calculate the quotient of the dividend divided by the divisor.
    *
    * @param dividend Integer dividend.
    * @param divisor Integer divisor.
    * @return Quotient of dividend divided by divisor.
    */
   public double divide(final int dividend, final int divisor)
   {
      return dividend / divisor;
   }
}

Answer 1

1) 将 SimpleCalculatorIf 重命名为 SimpleCalculatorMBean。那么 context.xml 中的这两行足以让 Spring 检测到您的 SimpleCalculator 并将其注册为 MBean http://docs.oracle.com/javase/tutorial/jmx/mbeans/standard.html

<context:mbean-export/>
<bean class="dustin.jmx.modelmbeans.SimpleCalculator"/>

2)但最有效的方法是使用 Spring 注解，那么你甚至不需要接口(interface)

@ManagedResource(objectName="bean:name=SimpleCalculator", description="My Managed Calculator", log=true,
logFile="jmx.log", currencyTimeLimit=15, persistPolicy="OnUpdate", persistPeriod=200,
persistLocation="foo", persistName="bar")
public class SimpleCalculator implements SimpleCalculatorIf
{
   @ManagedOperation
   public int add(final int augend, final int addend)
   {
      return augend + addend;
   }
   ...

实际上，没有参数的默认 @ManagedResource 也可以工作，我只是想显示您有多少个带注释的选项。在 Spring 文档中阅读更多内容