spring-从普通java类取得注入spring Ioc容器的对象的方案-优快云博客

本文介绍了如何在Spring应用中通过监听器初始化上下文及保留容器引用，同时展示了实现ApplicationContextAware接口来获取Bean的方法。

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1.启动服务时通过spring容器的监听器（继承ContextLoaderListener 监听器的方法）

public class ListenerSpringContext extends ContextLoaderListener {
    private final Logger log = LoggerFactory.getLogger(ListenerSpringContext.class);

    public void contextInitialized(ServletContextEvent event) {
        log.info("init ListenerSpringContext...");
        super.contextInitialized(event);
        ApplicationContext applicationContext = WebApplicationContextUtils.getWebApplicationContext(event.getServletContext());
　　　　　//自己手动保留一个spring注入的容器
        UtilsSpringContext.setApplicationContext(applicationContext);
    }

}

2.实现appctionContextaware的方法

package com.ceopen.eoss.spring;  
  
import org.springframework.beans.BeansException;  
import org.springframework.context.ApplicationContext;  
import org.springframework.context.ApplicationContextAware;  
  
public class SpringUtil implements ApplicationContextAware {  
      
    private static ApplicationContext applicationContext;  
      
    @Override  
    public void setApplicationContext(ApplicationContext context)  
        throws BeansException {  
        SpringUtil.applicationContext = context;  
    }  
    public static Object getBean(String name){  
        return applicationContext.getBean(name);  
    }  
}

将SpringUtil注入spring配置文件

<bean id="spring" class="com.ceopen.eoss.spring.SpringUtil" />

获取

ICBMission icbMission = (ICBMission)SpringUtil.getBean("ICBMission");

转载于:https://www.cnblogs.com/hwaggLee/p/5462527.html