init

src/main/java/com/yupi/springbootinit/utils/SpringContextUtils.java

@@ -0,0 +1,57 @@
+package com.yupi.springbootinit.utils;
+
+import org.jetbrains.annotations.NotNull;
+import org.springframework.beans.BeansException;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+import org.springframework.stereotype.Component;
+
+/**
+ * Spring 上下文获取工具
+ *
+ * @author <a href="https://github.com/liyupi">程序员鱼皮</a>
+ * @from <a href="https://yupi.icu">编程导航知识星球</a>
+ */
+@Component
+public class SpringContextUtils implements ApplicationContextAware {
+
+    private static ApplicationContext applicationContext;
+
+    @Override
+    public void setApplicationContext(@NotNull ApplicationContext applicationContext) throws BeansException {
+        SpringContextUtils.applicationContext = applicationContext;
+    }
+
+    /**
+     * 通过名称获取 Bean
+     *
+     * @param beanName
+     * @return
+     */
+    public static Object getBean(String beanName) {
+        return applicationContext.getBean(beanName);
+    }
+
+    /**
+     * 通过 class 获取 Bean
+     *
+     * @param beanClass
+     * @param <T>
+     * @return
+     */
+    public static <T> T getBean(Class<T> beanClass) {
+        return applicationContext.getBean(beanClass);
+    }
+
+    /**
+     * 通过名称和类型获取 Bean
+     *
+     * @param beanName
+     * @param beanClass
+     * @param <T>
+     * @return
+     */
+    public static <T> T getBean(String beanName, Class<T> beanClass) {
+        return applicationContext.getBean(beanName, beanClass);
+    }
+}