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+> [TOC]
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+
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+## Spring AOP API 设计与实现
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+
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+### Spring AOP API 整体设计
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+
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+- Join point - `Joinpoint`
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+- Pointcut - `Pointcut`
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+- Advice 执行动作 - `Advice`
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+- Advice 容器 - `Advisor`
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+- Introduction - `IntroductionInfo`
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+- 代理对象创建基础类 - `ProxyCreatorSupport`
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+- 代理工厂 - `ProxyFactory` 、`ProxyFactoryBean`
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+- `AopProxyFactory` 配置管理器 - `AdvisedSupport`
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+- IoC 容器自动代理抽象 - `AbstractAutoProxyCreator`
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+
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+### 接入点接口 - Joinpoint
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+
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+- Interceptor 执行上下文 - Invocation
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+ - 方法拦截器执行上下文 - `MethodInvocation`
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+ - 构造器拦截器执行上下文 - `ConstructorInvocation`
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+- MethodInvocation 实现
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+ - 基于反射 - `ReflectiveMethodInvocation`
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+ - 基于 CGLIB - `CglibMethodInvocation`
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+
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+![img](assets/o_210917031338Joinpoint.png)
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+
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+### Joinpoint 条件接口 - Pointcut
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+
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+核心组件:
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+
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+- 类过滤器 - `ClassFilter`
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+- 方法匹配器 - `MethodMatcher`
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+
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+![img](assets/o_210917053407Pointcut.png)
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+
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+#### Pointcut 操作
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+
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+- 组合实现 - `org.springframework.aop.support.ComposablePointcut`
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+- 工具类
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+ - `ClassFilter` 工具类 - `ClassFilters`
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+ - `MethodMatcher` 工具类 - `MethodMatchers`
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+ - `Pointcut` 工具类 - `Pointcuts`
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+
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+#### Pointcut 便利实现
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+
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+- 静态 `Pointcut` - `StaticMethodMatcherPointcut`
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+- 正则表达式 `Pointcut` - `JdkRegexpMethodPointcut`
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+- 控制流 `Pointcut` - `ControlFlowPointcut`
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+
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+#### Pointcut AspectJ 实现
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+
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+- 实现类 - `org.springframework.aop.aspectj.AspectJExpressionPointcut`
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+- 指令支持 - `SUPPORTED_PRIMITIVES` 字段
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+- 表达式 - `org.aspectj.weaver.tools.PointcutExpression`
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+
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+### Joinpoint 执行动作接口 - Advice
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+
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+![img](assets/o_210917074048Advice.png)
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+
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+- Around Advice - Interceptor
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+ - 方法拦截器 - `MethodInterceptor`
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+ - 构造器拦截器 - `ConstructorInterceptor`
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+- 前置动作
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+ - 标准接口 - `org.springframework.aop.BeforeAdvice`
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+ - 方法级别 - `org.springframework.aop.MethodBeforeAdvice`
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+- 后置动作
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+ - `org.springframework.aop.AfterAdvice`
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+ - `org.springframework.aop.AfterReturningAdvice`
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+ - `org.springframework.aop.ThrowsAdvice`
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+
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+#### Joinpoint Before Advice 标准实现
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+
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+![img](assets/o_210917083751BeforeAdvice.png)
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+
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+接口:
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+
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+- 标准接口 - `org.springframework.aop.BeforeAdvice`
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+- 方法级别 - `org.springframework.aop.MethodBeforeAdvice`
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+
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+实现:
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+
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+- `org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor`
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+
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+#### Joinpoint Before Advice AspectJ 实现
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+
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+- 实现类 - `org.springframework.aop.aspectj.AspectJMethodBeforeAdvice`
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+
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+#### Joinpoint After Advice 标准实现
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+
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+![img](assets/o_210918015501AfterAdvice.png)
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+
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+- 接口
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+ - `org.springframework.aop.AfterAdvice`
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+ - `org.springframework.aop.AfterReturningAdvice`
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+ - `org.springframework.aop.ThrowsAdvice`
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+- 实现
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+ - `org.springframework.aop.framework.adapter.ThrowsAdviceInterceptor`
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+ - `org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor`
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+
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+#### Joinpoint After Advice AspectJ 实现
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+
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+- 接口
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+ - `org.springframework.aop.AfterAdvice`
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+ - `org.springframework.aop.AfterReturningAdvice`
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+ - `org.springframework.aop.ThrowsAdvice`
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+- 实现
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+ - `org.springframework.aop.aspectj.AspectJAfterAdvice`
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+ - `org.springframework.aop.aspectj.AspectJAfterReturningAdvice`
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+ - `org.springframework.aop.aspectj.AspectJAfterThrowingAdvice`
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+
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+### Advice 容器接口 - Advisor
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+
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+![img](assets/o_210918031801Advisor.png)
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+
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+- 接口 - org.springframework.aop.Advisor
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+ - PointcutAdvisor
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+ - 通用实现 - `org.springframework.aop.support.DefaultPointcutAdvisor`
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+ - `IntroductionAdvisor`
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+
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+#### Pointcut 与 Advice 连接器 - PointcutAdvisor
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+
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+- 接口 - org.springframework.aop.PointcutAdvisor
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+ - 通用实现
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+ - `org.springframework.aop.support.DefaultPointcutAdvisor`
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+ - AspectJ 实现
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+ - `org.springframework.aop.aspectj.AspectJExpressionPointcutAdvisor`
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+ - `org.springframework.aop.aspectj.AspectJPointcutAdvisor`
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+ - 静态方法实现
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+ - `org.springframework.aop.support.StaticMethodMatcherPointcutAdvisor`
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+ - IoC 容器实现
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+ - `org.springframework.aop.support.AbstractBeanFactoryPointcutAdvisor`
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+
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+### Introduction 与 Advice 连接器 - IntroductionAdvisor
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+
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+![img](assets/o_210918032025Introduction.png)
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+
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+- 接口 - org.springframework.aop.IntroductionAdvisor
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+ - 元信息
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+ - `org.springframework.aop.IntroductionInfo`
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+ - 通用实现
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+ - `org.springframework.aop.support.DefaultIntroductionAdvisor`
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+ - AspectJ 实现
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+ - `org.springframework.aop.aspectj.DeclareParentsAdvisor`
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+
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+### Advisor 的 Interceptor 适配器 - AdvisorAdapter
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+
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+![img](assets/o_210918032927AdvisorAdapter.png)
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+
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+- 接口 - org.springframework.aop.framework.adapter.AdvisorAdapter
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+ - MethodBeforeAdvice实现
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+ - `org.springframework.aop.framework.adapter.MethodBeforeAdviceAdapter`
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+ - AfterReturningAdvice实现
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+ - `org.springframework.aop.framework.adapter.AfterReturningAdviceAdapter`
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+ - ThrowsAdvice 实现
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+ - `org.springframework.aop.framework.adapter.ThrowsAdviceAdapter`
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+
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+### AOP 代理接口 - AopProxy
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+
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+![img](assets/o_210918052609AopProxy.png)
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+
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+- 接口 - `org.springframework.aop.framework.AopProxy`
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+- 实现
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+ - JDK 动态代理
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+ - `org.springframework.aop.framework.JdkDynamicAopProxy`
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+ - CGLIB 字节码提升
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+ - `org.springframework.aop.framework.CglibAopProxy`
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+ - `org.springframework.aop.framework.ObjenesisCglibAopProxy`
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+
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+#### AopProxy 工厂接口与实现
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+
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+![img](assets/o_210918053303AopProxy.png)
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+
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+- 接口 - `org.springframework.aop.framework.AopProxyFactory`
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+- 默认实现:org.springframework.aop.framework.DefaultAopProxyFactory
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+ - 返回类型
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+ - `org.springframework.aop.framework.JdkDynamicAopProxy`
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+ - `org.springframework.aop.framework.CglibAopProxy`
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+ - `org.springframework.aop.framework.ObjenesisCglibAopProxy`
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+
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+#### JDK AopProxy 实现 - JdkDynamicAopProxy
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+
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+- 实现 - org.springframework.aop.framework.JdkDynamicAopProxy
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+ - 配置 - `org.springframework.aop.framework.AdvisedSupport`
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+ - 来源 - `org.springframework.aop.framework.DefaultAopProxyFactory`
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+
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+#### CGLIB AopProxy 实现 - CglibAopProxy
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+
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+- 实现 - org.springframework.aop.framework.CglibAopProxy
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+ - 配置 - `org.springframework.aop.framework.AdvisedSupport`
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+ - 来源 - `org.springframework.aop.framework.DefaultAopProxyFactory`
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+
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+#### AopProxyFactory 配置管理器 - AdvisedSupport
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+
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+- 核心 API - org.springframework.aop.framework.AdvisedSupport
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+ - 语义 - 代理配置
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+ - 基类 - `org.springframework.aop.framework.ProxyConfig`
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+ - 实现接口 - `org.springframework.aop.framework.Advised`
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+ - 使用场景 - `org.springframework.aop.framework.AopProxy` 实现
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+
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+### Advisor 链工厂接口与实现 - AdvisorChainFactory
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+
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+- 核心 API - org.springframework.aop.framework.AdvisorChainFactory
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+ - 默认实现 - `org.springframework.aop.framework.DefaultAdvisorChainFactory`
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+ - 返回类型
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+ - `org.springframework.aop.framework.InterceptorAndDynamicMethodMatcher`
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+ - `org.aopalliance.intercept.Interceptor`
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+
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+### 目标对象来源接口与实现 - TargetSource
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+
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+![img](assets/o_210918054107TargetSource.png)
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+
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+- 核心 API - org.springframework.aop.TargetSource
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+ - 实现
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+ - `org.springframework.aop.target.HotSwappableTargetSource`
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+ - `org.springframework.aop.target.AbstractPoolingTargetSource`
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+ - `org.springframework.aop.target.PrototypeTargetSource`
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+ - `org.springframework.aop.target.ThreadLocalTargetSource`
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+ - `org.springframework.aop.target.SingletonTargetSource`
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+
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+### 代理对象创建基础类 - ProxyCreatorSupport
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+
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+![img](assets/o_210918055439ProxyCreatorSupport.png)
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+
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+- 核心 API - org.springframework.aop.framework.ProxyCreatorSupport
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+ - 语义 - 代理对象创建基类
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+ - 基类 - `org.springframework.aop.framework.AdvisedSupport`
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+
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+#### ProxyCreatorSupport 标准实现 - ProxyFactory
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+
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+- 核心 API - org.springframework.aop.framework.ProxyFactory
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+ - 基类 - `org.springframework.aop.framework.ProxyCreatorSupport`
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+ - 特性增强
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+ - 提供一些便利操作
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+
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+#### ProxyCreatorSupport IoC 容器实现 - ProxyFactoryBean
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+
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+- 核心 API - org.springframework.aop.framework.ProxyFactoryBean
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+ - 基类 - `org.springframework.aop.framework.ProxyCreatorSupport`
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+ - 特点
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+ - Spring IoC 容器整合
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+ - `org.springframework.beans.factory.BeanClassLoaderAware`
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+ - `org.springframework.beans.factory.BeanFactoryAware`
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+ - 特性增强
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+ - 实现 `org.springframework.beans.factory.FactoryBean`
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+
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+#### ProxyCreatorSupport AspectJ 实现 - AspectJProxyFactory
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+
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+- 核心 API - org.springframework.aop.aspectj.annotation.AspectJProxyFactory
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+ - 基类 - `org.springframework.aop.framework.ProxyCreatorSupport`
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+ - 特点
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+ - AspectJ 注解整合
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+ - 相关 API
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+ - AspectJ 元数据 - `org.springframework.aop.aspectj.annotation.AspectMetadata`
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+ - AspectJ Advisor 工厂 - `org.springframework.aop.aspectj.annotation.AspectJAdvisorFactory`
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+
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+### AdvisedSupport 事件监听器 - AdvisedSupportListener
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+
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+- 核心 API - org.springframework.aop.framework.AdvisedSupportListener
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+ - 事件对象 - `org.springframework.aop.framework.AdvisedSupport`
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+ - 事件来源 - `org.springframework.aop.framework.ProxyCreatorSupport`
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+ - 激活事件触发 - `ProxyCreatorSupport#createAopProxy`
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+ - 变更事件触发 - 代理接口变化时、 Advisor 变化时、配置复制
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+
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+### IoC 容器自动代理抽象 - AbstractAutoProxyCreator
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+
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+![img](assets/o_210930065937ProxyConfig.png)
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+
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+- API - org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator
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+ - 基类 - `org.springframework.aop.framework.ProxyProcessorSupport`
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+ - 特点
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+ - 与 Spring Bean 生命周期整合
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+ - `org.springframework.beans.factory.config.SmartInstantiationAwareBeanPostProcessor`
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+
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+#### IoC 容器自动代理标准实现 - AbstractAutoProxyCreator
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+
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+- 基类 - org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator
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+ - 默认实现 - `DefaultAdvisorAutoProxyCreator`
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+ - Bean 名称匹配实现 - `BeanNameAutoProxyCreator`
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+ - Infrastructure Bean 实现 - `InfrastructureAdvisorAutoProxyCreator`
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+
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+#### IoC 容器自动代理 AspectJ 实现 - AspectJAwareAdvisorAutoProxyCreator
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+
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+- org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator
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+ - 基类 - `org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator`
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+
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+### AOP Infrastructure Bean 接口 - AopInfrastructureBean
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+
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+- 接口 - org.springframework.aop.framework.AopInfrastructureBean
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+ - 语义 - Spring AOP 基础 Bean 标记接口
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+ - 实现
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+ - `org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator`
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+ - `org.springframework.aop.scope.ScopedProxyFactoryBean`
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+ - 判断逻辑
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+ - `AbstractAutoProxyCreator#isInfrastructureClass`
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+ - `ConfigurationClassUtils#checkConfigurationClassCandidate`
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+
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+### AOP 上下文辅助类 - AopContext
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+
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+- API - org.springframework.aop.framework.AopContext
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+ - 语义 - `ThreadLocal` 的扩展,临时存储 AOP 对象
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+
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+### AOP 代理工具类 - AopProxyUtils
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+
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+- API - org.springframework.aop.framework.AopProxyUtils
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+ - 代表方法
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+ - `getSingletonTarget` - 从实例中获取单例对象
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+ - `ultimateTargetClass` - 从实例中获取最终目标类
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+ - `completeProxiedInterfaces` - 计算 `AdvisedSupport` 配置中所有被代理的接口
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+ - `proxiedUserInterfaces` - 从代理对象中获取代理接口
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+ - `isAopProxy` - 判断对象是否为代理对象
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+ - `isJdkDynamicProxy` - 判断对象是否为 JDK 动态代理对象
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+ - `isCglibProxy` - 判断对象是否为 CGLIB 代理对象
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+ - `getTargetClass` - 从对象中获取目标类型
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+ - `invokeJoinpointUsingReflection` - 使用 Java 反射调用 Joinpoint(目标方法)
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+
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+### AspectJ Enable 模块驱动实现 - EnableAspectJAutoProxy
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+
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+- 注解 - `org.springframework.context.annotation.EnableAspectJAutoProxy`
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+- 属性方法
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+ - `proxyTargetClass` - 是否已类型代理
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+ - `exposeProxy` - 是否将代理对象暴露在 `AopContext` 中
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+- 设计模式 - @Enable 模块驱动
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+ - `ImportBeanDefinitionRegistrar` 实现 - `org.springframework.context.annotation.AspectJAutoProxyRegistrar`
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+- 底层实现
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+ - `org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator`
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+
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+### AspectJ XML 配置驱动实现 - `<aop:aspectj-autoproxy/>`
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+
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+- XML 元素 - <aop:aspectj-autoproxy/>
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+ - 属性
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+ - `proxy-target-class` - 是否已类型代理
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+ - `expose-proxy` - 是否将代理对象暴露在 `AopContext` 中
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+ - 设计模式 - Extensible XML Authoring
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+ - 底层实现
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+ - `org.springframework.aop.config.AspectJAutoProxyBeanDefinitionParser`
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+
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+#### AOP 配置 Schema-based 实现 - `<aop:config/>` 、`<aop:aspect/>`
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+
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+- XML 元素 - <aop:config/>
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+ - 属性
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+ - `proxy-target-class` - 是否已类型代理
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+ - `expose-proxy` - 是否将代理对象暴露在 `AopContext` 中
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+ - 嵌套元素
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+ - `pointcut`
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+ - `advisor`
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+ - `aspect`
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+ - 底层实现
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+ - `org.springframework.aop.config.ConfigBeanDefinitionParser`
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+- XML 元素 - <aop:aspect/>
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+ - 父元素 - `<aop:config/>`
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+ - 属性
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+ - `ref` - Spring Bean 引用的名称
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+ - `order` - Aspect 顺序数
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+ - 嵌套元素
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+ - `pointcut`
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+ - `declare-parents`
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+ - `before`
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+ - `after`
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+ - `after-returning`
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+ - `after-throwing`
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+ - `around`
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+
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+#### Pointcut Schema-based 实现 - `<aop:pointcut/>`
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+
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+- XML 元素 - <aop:pointcut/>
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+ - 父元素 - `<aop:aspect/>` 或 `<aop:config/>`
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+ - 属性
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+ - `id` - Pointcut ID
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+ - `expression` - (必须)AspectJ 表达式
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+ - 底层实现
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+ - `org.springframework.aop.Pointcut`
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+
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+#### Around Advice Schema-based 实现 - `<aop:around/>`
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+
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+- XML 元素 - <aop:around/>
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+ - 父元素 - `<aop:aspect/>`
|
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+ - 属性
|
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+ - `pointcut` - AspectJ Pointcut 表达式
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+ - `pointcut-ref` - 引用的 AspectJ Pointcut 名称
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+ - `method` - 拦截目标方法
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|
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+ - `arg-names` - 目标方法参数名称
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+
|
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+#### Before Advice Schema-based 实现 - `<aop:before/>`
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+
|
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+- XML 元素 - <aop:before/>
|
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+ - 父元素 - `<aop:aspect/>`
|
|
|
|
+ - 属性
|
|
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|
+ - `pointcut` - AspectJ Pointcut 表达式
|
|
|
|
+ - `pointcut-ref` - 引用的 AspectJ Pointcut 名称
|
|
|
|
+ - `method` - 拦截目标方法
|
|
|
|
+ - `arg-names` - 目标方法参数名称
|
|
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+
|
|
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+#### After Advice Schema-based 实现 - `<aop:after/>`
|
|
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+
|
|
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|
+- XML 元素 - <aop:after/>
|
|
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|
+ - 父元素 - `<aop:aspect/>`
|
|
|
|
+ - 属性
|
|
|
|
+ - `pointcut` - AspectJ Pointcut 表达式
|
|
|
|
+ - `pointcut-ref` - 引用的 AspectJ Pointcut 名称
|
|
|
|
+ - `method` - 拦截目标方法
|
|
|
|
+ - `arg-names` - 目标方法参数名称
|
|
|
|
+
|
|
|
|
+#### After Returning Advice Schema-based 实现 - `<aop:after-returning/>`
|
|
|
|
+
|
|
|
|
+- XML 元素 - <aop:after-returning/>
|
|
|
|
+ - 父元素 - `<aop:aspect/>`
|
|
|
|
+ - 属性
|
|
|
|
+ - `pointcut` - AspectJ Pointcut 表达式
|
|
|
|
+ - `pointcut-ref` - 引用的 AspectJ Pointcut 名称
|
|
|
|
+ - `method` - 拦截目标方法
|
|
|
|
+ - `arg-names` - 目标方法参数名称
|
|
|
|
+ - `returning` - 方法参数名称
|
|
|
|
+
|
|
|
|
+#### After Throwing Advice Schema-based 实现 - `<aop:after-throwing/>`
|
|
|
|
+
|
|
|
|
+- XML 元素 - <aop:after-throwing/>
|
|
|
|
+ - 父元素 - `<aop:aspect/>`
|
|
|
|
+ - 属性
|
|
|
|
+ - `pointcut` - AspectJ Pointcut 表达式
|
|
|
|
+ - `pointcut-ref` - 引用的 AspectJ Pointcut 名称
|
|
|
|
+ - `method` - 拦截目标方法
|
|
|
|
+ - `arg-names` - 目标方法参数名称
|
|
|
|
+ - `throwing` - 方法参数名称
|
|
|
|
+
|
|
|
|
+#### Adviser Schema-based 实现 - `<aop:advisor/>`
|
|
|
|
+
|
|
|
|
+- XML 元素 - <aop:advisor/>
|
|
|
|
+ - 父元素 - `<aop:config/>`
|
|
|
|
+ - 属性
|
|
|
|
+ - `advice-ref` - Advice Bean 引用
|
|
|
|
+ - `pointcut` - AspectJ Pointcut 表达式
|
|
|
|
+ - `pointcut-ref` - AspectJ Pointcut Bean 引用
|
|
|
|
+ - `order` - Advisor 顺序数
|
|
|
|
+
|
|
|
|
+#### Introduction Schema-based 实现 - `<aop:declare-parents/>`
|
|
|
|
+
|
|
|
|
+- XML 元素 - <aop:declare-parents/>
|
|
|
|
+ - 父元素 - `<aop:aspect/>`
|
|
|
|
+ - 属性
|
|
|
|
+ - `types-matching` - 是否已类型代理
|
|
|
|
+ - `implement-interface` - 实现接口全类名
|
|
|
|
+ - `default-impl` - 默认实现全类名
|
|
|
|
+ - `delegate-ref` - 委派实现 Bean 引用
|
|
|
|
+
|
|
|
|
+#### 作用域代理 Schema-based 实现 - `<aop:scoped-proxy/>`
|
|
|
|
+
|
|
|
|
+- XML 元素 - `<aop:scoped-proxy/>`
|
|
|
|
+- 属性
|
|
|
|
+ - `proxy-target-class` - 是否已类型代理
|