有没有办法在Spring中的bean配置文件中引用当前的应用程序上下文？

我想做这样的事情：

xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:util="http://www.springframework.org/schema/util"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">

问题是SomeClass在其构造函数中需要一个ApplicationContext实例.有没有办法获得正在加载bean的ApplicationContext的引用？我知道我可以在XML中完成所有的加载,但这不是我想要的,因为我需要在我的java代码中进行bean加载.

解决方法:

你看过实施ApplicationContextAware吗？它不会在构造函数中出现,但它确实在init()调用之前发生,并且将在填充bean属性之后发生.

Invoked after population of normal bean properties but before an init

callback such as InitializingBean.afterPropertiesSet() or a custom

init-method. Invoked after

ResourceLoaderAware.setResourceLoader(org.springframework.core.io.ResourceLoader),

ApplicationEventPublisherAware.setApplicationEventPublisher(org.springframework.context.ApplicationEventPublisher)

and MessageSourceAware, if applicable.

public class SomeClass implements ApplicationContextAware {

//your class definition

private ApplicationContext myContext;

public void setApplicationContext(ApplicationContext context) throws BeansException {

myContext = context;

//load beans here maybe?

}

}

如果使用Spring 2.5或更高版本,你也可以@Autowire(d)它.

public class SomeClass {

//your class definition

@Autowired

private ApplicationContext myContext;

}

当然,执行其中任何一项都会将代码绑定到Spring.

标签：java,spring

来源： https://codeday.me/bug/20190709/1417895.html