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@@ -0,0 +1,83 @@
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+package com.jiayue.insu.common.core.util;
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+
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+import lombok.SneakyThrows;
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+import lombok.extern.slf4j.Slf4j;
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+import org.springframework.beans.factory.DisposableBean;
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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.ApplicationEvent;
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+import org.springframework.context.annotation.Lazy;
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+import org.springframework.stereotype.Service;
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+
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+/**
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+ * @author lengleng
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+ * @date 2019/2/1 Spring 工具类
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+ */
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+@Slf4j
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+@Service
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+@Lazy(false)
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+public class SpringContextHolder implements ApplicationContextAware, DisposableBean {
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+
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+ private static ApplicationContext applicationContext = null;
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+
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+ /**
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+ * 取得存储在静态变量中的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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+ /**
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+ * 实现ApplicationContextAware接口, 注入Context到静态变量中.
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+ */
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+ @Override
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+ public void setApplicationContext(ApplicationContext applicationContext) {
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+ SpringContextHolder.applicationContext = applicationContext;
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+ }
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+
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+ /**
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+ * 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型.
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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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+ /**
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+ * 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型.
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+ */
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+ public static <T> T getBean(Class<T> requiredType) {
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+ return applicationContext.getBean(requiredType);
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+ }
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+
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+ /**
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+ * 清除SpringContextHolder中的ApplicationContext为Null.
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+ */
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+ public static void clearHolder() {
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+ if (log.isDebugEnabled()) {
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+ log.debug("清除SpringContextHolder中的ApplicationContext:" + applicationContext);
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+ }
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+ applicationContext = null;
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+ }
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+
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+ /**
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+ * 发布事件
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+ * @param event
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+ */
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+ public static void publishEvent(ApplicationEvent event) {
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+ if (applicationContext == null) {
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+ return;
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+ }
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+ applicationContext.publishEvent(event);
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+ }
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+
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+ /**
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+ * 实现DisposableBean接口, 在Context关闭时清理静态变量.
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+ */
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+ @Override
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+ @SneakyThrows
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+ public void destroy() {
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+ SpringContextHolder.clearHolder();
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+ }
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+
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+}
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