package com.smartearth.poiexcel.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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* Spring上下文帮助类
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* @author WWW
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*/
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@Component
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public class SpringContextHelper implements ApplicationContextAware {
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private static ApplicationContext context = null;
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/**
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* 设置应用程序上下文
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*
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* @param applicationContext
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* @throws BeansException
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*/
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@Override
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public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
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context = applicationContext;
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}
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/**
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* 根据名称获取Bean
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*
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* @param name 类名称
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* @return
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*/
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public static <T> T getBean(String name) {
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return (T) context.getBean(name);
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}
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/**
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* 根据类型获取Bean
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*
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* @param clazz 类
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* @param <T> 泛型
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* @return
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*/
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public static <T> T getBean(Class<T> clazz) {
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return context.getBean(clazz);
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}
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/**
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* 判断是否包含对应名称的Bean对象
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*
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* @param name Bean名称
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* @return 包含:返回true,否则返回false。
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*/
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public static boolean containsBean(String name) {
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return context.containsBean(name);
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}
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/**
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* 获取对应Bean名称的类型
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*
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* @param name Bean名称
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* @return 返回对应的Bean类型
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*/
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public static Class<?> getType(String name) {
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return context.getType(name);
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}
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/**
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* 获取上下文对象,可进行各种Spring的上下文操作
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*
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* @return Spring上下文对象
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*/
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public static ApplicationContext getContext() {
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return context;
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}
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/**
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* 获取当前环境
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*
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* @return Profile
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*/
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public static String getActiveProfile() {
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return context.getEnvironment().getActiveProfiles()[0];
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}
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}
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