實現ApplicationContextAware介面時，擷取ApplicationContext為null

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將懶載入關閉，@Lazy(false)，預設為true

 1 import org.springframework.beans.BeansException; 2 import org.springframework.context.ApplicationContext; 3 import org.springframework.context.ApplicationContextAware; 4 import org.springframework.context.annotation.Lazy; 5 import org.springframework.stereotype.Service; 6  7 @Service 8 @Lazy(false) 9 public class SpringContextUtil implements ApplicationContextAware {10 11     private static ApplicationContext applicationContext = null; // Spring應用上下文環境12 13     /*14      * 15      * 實現了ApplicationContextAware 介面，必須實現該方法；16      * 17      * 通過傳遞applicationContext參數初始化成員變數applicationContext18      */19 20     public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {21         SpringContextUtil.applicationContext = applicationContext;22     }23 24     public static ApplicationContext getApplicationContext() {25         return applicationContext;26     }27 28     @SuppressWarnings("unchecked")29     public static <T> T getBean(String name) throws BeansException {30         return (T) applicationContext.getBean(name);31     }32 33 }

 

實現ApplicationContextAware介面時，擷取ApplicationContext為null