spring工具类

spring工具类获取bean编写

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package com.cloudiip.security.utils;     import org.springframework.stereotype.Component; import org.springframework.context.ApplicationContextAware; import org.springframework.context.ApplicationContext; import org.springframework.beans.BeansException; @Component public class SpringContextUtils implements ApplicationContextAware{       private static ApplicationContext applicationContext;       @Override     public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {         SpringContextUtils.applicationContext=applicationContext;       }     public static ApplicationContext getApplicationContext() {         return applicationContext;     }     @SuppressWarnings("unchecked")     public static <T> T getBean(Class name) throws BeansException {         if (applicationContext == null){             return null;         }         return (T)applicationContext.getBean(name);     } }

调用方式：

PermissionService permissionService=SpringContextUtils.getBean(PermissionService.class);