feat: 增加spring上下文

flyfish-common/src/main/java/com/flyfish/framework/context/SpringContext.java

@@ -1,5 +1,6 @@
 package com.flyfish.framework.context;
 
+import com.flyfish.framework.utils.Assert;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.BeanInitializationException;
 import org.springframework.context.ApplicationContext;
@@ -16,6 +17,12 @@ public class SpringContext implements ApplicationContextAware {
 
     private ApplicationContext applicationContext;
 
+    private static SpringContext INSTANCE;
+
+    public SpringContext() {
+        INSTANCE = this;
+    }
+
     /**
      * 设置上下文
      *
@@ -34,7 +41,12 @@ public class SpringContext implements ApplicationContextAware {
      * @param <T>   泛型
      * @return 结果
      */
-    public <T> T getBean(Class<T> clazz) {
+    public static <T> T getBean(Class<T> clazz) {
-        return applicationContext.getBean(clazz);
+        return getInstance().applicationContext.getBean(clazz);
+    }
+
+    private static SpringContext getInstance() {
+        Assert.notNull(INSTANCE, "spring工具类初始化失败！请检查该bean是否注入！");
+        return INSTANCE;
     }
 }