Spring Groovy DSL匿名内部bean及其构造函数

考虑到这两个因素：

myMessageAdapter(MessageListenerAdapter) { bean ->
    bean.constructorArgs = [ref('jmsReceiver')]
    defaultListenerMethod = 'processMessage'
}

listenerContainer(DefaultMessageListenerContainer) {
    connectionFactory = ref('connectionFactory')
    destinationName = "MyDest"
    messageListener = ref('myMessageAdapter')
}

我想用匿名内部bean替换

myMessageAdapter

尝试：

listenerContainer(DefaultMessageListenerContainer) {
    connectionFactory = ref('connectionFactory')
    destinationName = "MyDest"
    messageListener = { MessageListenerAdapter bean ->
        bean.constructorArgs = [ref('jmsReceiver')]
        defaultListenerMethod = 'processMessage'
    }
}

但由于“无法在空对象上设置属性'constructorArgs'”而失败

---

如何传递构造函数参数？

当您查看BeanBuilder的源代码和方法setPropertyOnBeanConfig

时，我认为这是不可能的。当您查看BeanBuilder和方法setPropertyOnBeanConfig的源代码时，实现这一点的方法是设置类在bean闭包中：

listenerContainer(DefaultMessageListenerContainer) {
    connectionFactory = ref('connectionFactory')
    destinationName = "MyDest"
    messageListener = { bean ->
        bean.beanClass = MessageListenerAdapter 
        bean.constructorArgs = [ref('jmsReceiver')]
        bean.defaultListenerMethod = 'processMessage'
    }
}

---

实现这一点的方法是在bean闭包中设置类：

listenerContainer(DefaultMessageListenerContainer) {
    connectionFactory = ref('connectionFactory')
    destinationName = "MyDest"
    messageListener = { bean ->
        bean.beanClass = MessageListenerAdapter 
        bean.constructorArgs = [ref('jmsReceiver')]
        bean.defaultListenerMethod = 'processMessage'
    }
}