ProxyFactoryBean类没有CommonsPool2TargetSource的定义？

Question

我为POJO课程创建游泳池时遇到了麻烦。 这是我的代码片段：

    @Bean
    public CommonsPool2TargetSource poolTargetSource() {
        CommonsPool2TargetSource commonsPool2TargetSource = new CommonsPool2TargetSource();
        commonsPool2TargetSource.setMinIdle(5);
        commonsPool2TargetSource.setMaxSize(50);
        commonsPool2TargetSource.setTargetClass(JioTUURL.class);
        return commonsPool2TargetSource;
    }

    @Bean
    public ProxyFactoryBean proxyFactoryBean() {
        ProxyFactoryBean proxyFactoryBean = new ProxyFactoryBean();
        proxyFactoryBean.setTargetSource(poolTargetSource());//The type org.apache.commons.pool2.PooledObjectFactory cannot be resolved. It is indirectly referenced from required .class files
        return proxyFactoryBean;
    }

    @Bean
    public MethodInvokingFactoryBean poolConfigAdvisor() {
        MethodInvokingFactoryBean poolConfigAdvisor = new MethodInvokingFactoryBean();
        poolConfigAdvisor.setTargetObject(commonsPoolTargetSource());
        poolConfigAdvisor.setTargetMethod("getMaxIdle");
        return poolConfigAdvisor;
    }

我在编译时收到错误消息，如评论中所述。

早些时候我使用的是CommonsPoolTargetSource，但得出的结论是它已被弃用。

我正在使用的罐子/版本： Spring 4.3.1， aopalliance-1.0.jar， 共享记录-1.2.jar， commons-pool的-1.6.jar， 核心IO-1.3.1.jar， rxjava-1.1.6.jar， SLF4J-API 1.7.21.jar， SLF4J-简单1.7.21.jar