<fix>: 修复容器初始化失败的BUG

src/main/java/cn/noexception/container/aop/framework/adapter/MethodBeforeAdviceInterceptor.java

@@ -13,6 +13,8 @@ import org.aopalliance.intercept.MethodInvocation;
 public class MethodBeforeAdviceInterceptor implements MethodInterceptor {
     private MethodBeforeAdvice advice;
 
+    public MethodBeforeAdviceInterceptor(){}
+
     public MethodBeforeAdviceInterceptor(MethodBeforeAdvice advice) {
         this.advice = advice;
     }

src/main/java/cn/noexception/container/aop/framework/autoproxy/DefaultAdvisorAutoProxyCreator.java

@@ -32,12 +32,12 @@ public class DefaultAdvisorAutoProxyCreator implements InstantiationAwareBeanPos
 
     @Override
     public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
-        return null;
+        return bean;
     }
 
     @Override
     public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
-        return null;
+        return bean;
     }
 
     @Override

src/main/java/cn/noexception/container/factory/support/AbstractAutowiredCapableBeanFactory.java

@@ -6,10 +6,7 @@ import cn.noexception.container.BeansException;
 import cn.noexception.container.PropertyValue;
 import cn.noexception.container.PropertyValues;
 import cn.noexception.container.factory.*;
-import cn.noexception.container.factory.config.AutowireCapableBeanFactory;
-import cn.noexception.container.factory.config.BeanDefinition;
-import cn.noexception.container.factory.config.BeanPostProcessor;
-import cn.noexception.container.factory.config.BeanReference;
+import cn.noexception.container.factory.config.*;
 
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Method;
@@ -28,6 +25,12 @@ public abstract class AbstractAutowiredCapableBeanFactory extends AbstractBeanFa
     protected Object createBean(String beanName, BeanDefinition beanDefinition, Object[] args) throws BeansException {
         Object bean = null;
         try {
+            // 判断是否返回代理Bean对象
+            bean = resolveBeforeInstantiation(beanName, beanDefinition);
+            if (null != bean) {
+                return bean;
+            }
+            // 实例化 Bean
             bean = createBeanInstance(beanDefinition, beanName, args);
             // 给 Bean 填充属性值
             applyPropertyValues(beanName, bean, beanDefinition);
@@ -46,6 +49,24 @@ public abstract class AbstractAutowiredCapableBeanFactory extends AbstractBeanFa
         return bean;
     }
 
+    protected Object resolveBeforeInstantiation(String beanName, BeanDefinition beanDefinition) {
+        Object bean = applyBeanPostProcessorsBeforeInstantiation(beanDefinition.getBeanClass(), beanName);
+        if (null != bean) {
+            bean = applyBeanPostProcessorsAfterInitialization(bean, beanName);
+        }
+        return bean;
+    }
+
+    protected Object applyBeanPostProcessorsBeforeInstantiation(Class<?> beanClass, String beanName) {
+        for (BeanPostProcessor beanPostProcessor : getBeanPostProcessors()) {
+            if (beanPostProcessor instanceof InstantiationAwareBeanPostProcessor) {
+                Object result = ((InstantiationAwareBeanPostProcessor) beanPostProcessor).postProcessBeforeInstantiation(beanClass, beanName);
+                if (null != result) return result;
+            }
+        }
+        return null;
+    }
+
     protected void registerDisposableBeanIfNecessary(String beanName, Object bean, BeanDefinition beanDefinition) {
         // 非 Singleton 类型的 Bean 不执行销毁方法
         if (!beanDefinition.isSingleton()) return;

src/test/resources/config_aop.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <beans>
-    <bean id="userService" class="cn.noexception.test.bean.UserService"/>
+    <bean id="userService" class="cn.noexception.test.bean.impl.UserService"/>
 
     <bean class="cn.noexception.container.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"/>