package cn.lili.common.utils;
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import org.springframework.beans.BeansException;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.stereotype.Component;
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/**
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* @author Chopper
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*/
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@Component
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public class SpringContextUtil implements ApplicationContextAware {
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/**
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* 上下文对象实例
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*/
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private static ApplicationContext applicationContext;
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@Override
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public void setApplicationContext(ApplicationContext appContext) throws BeansException {
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applicationContext = appContext;
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}
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/**
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* 获取applicationContext
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* @return spring applicationContext
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*/
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public static ApplicationContext getApplicationContext() {
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return applicationContext;
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}
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/**
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* 通过name获取 Bean.
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* @param name bean的名字
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* @return bean实例
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*/
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public static Object getBean(String name){
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return getApplicationContext().getBean(name);
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}
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/**
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* 通过class获取Bean.
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* @param clazz bean的类型
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* @param <T> bean的类型
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* @return bean实例
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*/
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public static <T> T getBean(Class<T> clazz){
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return getApplicationContext().getBean(clazz);
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}
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/**
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* 通过name,以及Clazz返回指定的Bean
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* @param name bean的名字
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* @param clazz bean的类型
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* @param <T> bean的类型
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* @return bean实例
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*/
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public static <T> T getBean(String name,Class<T> clazz){
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return getApplicationContext().getBean(name, clazz);
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}
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}
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