Question

我注意到当有很多请求并且达到最大池大小时，其他请求会等到资源空闲。如何设置CommonsPoolTargetSource，使其达到最大池大小时，将创建新的对象实例？多余的资源也必须在使用后释放。

最初，我尝试寻找minSize属性，但发现CommonsPoolTargetSource没有minSize属性。下面是我的web.xml的主体：

<bean id="simpleBeanTarget" class="com.bean.SimpleBean" scope="prototype">        
</bean>

<bean id="poolTargetSource" class="org.springframework.aop.target.CommonsPoolTargetSource">
    <property name="targetBeanName" value="simpleBeanTarget" />
    <property name="maxSize" value="3" />
    <!-- How do I let the pool grow if more than 3 instances is needed? -->
    <!-- And how do I release the excess instances after usage? -->
</bean>

<bean id="simpleBean" class="org.springframework.aop.framework.ProxyFactoryBean">
    <property name="targetSource" ref="poolTargetSource" />
</bean>

Answer 1

尝试<property name="whenExhaustedActionName" value="WHEN_EXHAUSTED_GROW" />

或

<property name="whenExhaustedAction">
 <util:constant static-field="org.apache.commons.pool.impl.GenericObjectPool.WHEN_EXHAUSTED_GROW"/>
</property>

如何让CommonsPoolTargetSource池大小按需增长？

1 个答案: