package com.tools.common.util;import org.springframework.beans.BeansException;import org.springframework.beans.factory.NoSuchBeanDefinitionException;import org.springframework.beans.factory.config.BeanFactoryPostProcessor;import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;import org.springframework.stereotype.Component;/** * 工具类 * @author 小柒2012 */@Componentpublic final class SpringUtils implements BeanFactoryPostProcessor { /** * Spring应用上下文环境 */ private static ConfigurableListableBeanFactory beanFactory; @Override public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException { SpringUtils.beanFactory = beanFactory; } /** * 获取对象 * * @param name * @return Object 一个以所给名字注册的bean的实例 * @throws org.springframework.beans.BeansException * */ @SuppressWarnings("unchecked") public static <T> T getBean(String name) throws BeansException { return (T) beanFactory.getBean(name); } /** * 获取类型为requiredType的对象 * * @param clz * @return * @throws org.springframework.beans.BeansException * */ public static <T> T getBean(Class<T> clz) throws BeansException { @SuppressWarnings("unchecked") T result = (T) beanFactory.getBean(clz); return result; } /** * 如果BeanFactory包含一个与所给名称匹配的bean定义,则返回true * * @param name * @return boolean */ public static boolean containsBean(String name) { return beanFactory.containsBean(name); } /** * 判断以给定名字注册的bean定义是一个singleton还是一个prototype。 * 如果与给定名字相应的bean定义没有被找到,将会抛出一个异常(NoSuchBeanDefinitionException) * * @param name * @return boolean * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException * */ public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException { return beanFactory.isSingleton(name); } /** * @param name * @return Class 注册对象的类型 * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException * */ public static Class<?> getType(String name) throws NoSuchBeanDefinitionException { return beanFactory.getType(name); } /** * 如果给定的bean名字在bean定义中有别名,则返回这些别名 * * @param name * @return * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException * */ public static String[] getAliases(String name) throws NoSuchBeanDefinitionException { return beanFactory.getAliases(name); }}@b@