Spring Context 工具类

Posted 2022-12-11 Bwz_Learning

在web的开发过程中，有时需要获取在beans中配置的bean.使用下面的方式可以实现.

Spring Context 工具类

@Component
public class SpringContextUtils implements ApplicationContextAware 
    public static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException 
        SpringContextUtils.applicationContext = applicationContext;
    

    public static Object getBean(String name) 
        return applicationContext.getBean(name);
    

    public static <T> T getBean(String name, Class<T> requiredType) 
        return applicationContext.getBean(name, requiredType);
    

    public static boolean containsBean(String name) 
        return applicationContext.containsBean(name);
    

    public static boolean isSingleton(String name) 
        return applicationContext.isSingleton(name);
    

    public static Class<? extends Object> getType(String name) 
        return applicationContext.getType(name);