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package com.supervision.util;
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import cn.hutool.core.util.ArrayUtil;
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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.context.annotation.Lazy;
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import org.springframework.stereotype.Component;
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import java.util.Map;
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/***
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* @author ljt
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* @since 2020/8/4 17:37
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*
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*/
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@Component
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@Lazy(false)
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public class SpringBeanUtil implements ApplicationContextAware {
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private static ApplicationContext applicationContext;
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/**
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* 获取applicationContext
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*
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* @return 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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@Override
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public void setApplicationContext(ApplicationContext applicationContext) {
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SpringBeanUtil.applicationContext = applicationContext;
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}
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//通过name获取 Bean.
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/**
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* 通过name获取 Bean
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*
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* @param <T> Bean类型
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* @param name Bean名称
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* @return Bean
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*/
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@SuppressWarnings("unchecked")
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public static <T> T getBean(String name) {
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return (T) applicationContext.getBean(name);
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}
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/**
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* 通过class获取Bean
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*
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* @param <T> Bean类型
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* @param clazz Bean类
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* @return Bean对象
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*/
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public static <T> T getBean(Class<T> clazz) {
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return applicationContext.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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*
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* @param <T> bean类型
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* @param name Bean名称
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* @param clazz bean类型
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* @return Bean对象
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*/
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public static <T> T getBean(String name, Class<T> clazz) {
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return applicationContext.getBean(name, clazz);
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}
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/**
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* 获取指定类型对应的所有Bean,包括子类
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*
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* @param <T> Bean类型
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* @param type 类、接口,null表示获取所有bean
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* @return 类型对应的bean,key是bean注册的name,value是Bean
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* @since 5.3.3
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*/
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public static <T> Map<String, T> getBeansOfType(Class<T> type) {
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return applicationContext.getBeansOfType(type);
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}
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/**
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* 获取指定类型对应的Bean名称,包括子类
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*
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* @param type 类、接口,null表示获取所有bean名称
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* @return bean名称
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* @since 5.3.3
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*/
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public static String[] getBeanNamesForType(Class<?> type) {
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return applicationContext.getBeanNamesForType(type);
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}
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/**
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* 获取配置文件配置项的值
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*
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* @param key 配置项key
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* @return 属性值
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* @since 5.3.3
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*/
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public static String getProperty(String key) {
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return applicationContext.getEnvironment().getProperty(key);
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}
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/**
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* 获取当前的环境配置,无配置返回null
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*
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* @return 当前的环境配置
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* @since 5.3.3
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*/
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public static String[] getActiveProfiles() {
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return applicationContext.getEnvironment().getActiveProfiles();
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}
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/**
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* 获取当前的环境配置,当有多个环境配置时,只获取第一个
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*
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* @return 当前的环境配置
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* @since 5.3.3
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*/
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public static String getActiveProfile() {
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final String[] activeProfiles = getActiveProfiles();
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return ArrayUtil.isNotEmpty(activeProfiles) ? activeProfiles[0] : null;
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}
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}
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