spring源码分析SpringAop如何获取Proxy.docVIP

一、在ProxyFactoryBean中： //返回一个代理，当客户端获取Beans从这个Factory bean时， //创建一个AOP代理实例，这个实例将被缓存为单例，每次调用它的时候创建 public Object getObject() throws BeansException { initializeAdvisorChain(); // 1.1 if (isSingleton()) { return getSingletonInstance(); //1. 2 } else { if (this.targetName == null) { logger.warn(Using non-singleton proxies with singleton targets is often undesirable. + Enable prototype proxies by setting the targetName property.); } return newPrototypeInstance(); } } //1.1 private synchronized void initializeAdvisorChain() throws AopConfigException, BeansException { if (this.advisorChainInitialized) { return; } if (!ObjectUtils.isEmpty(this.interceptorNames)) { // interceptorNames: Set the list of Advice/Advisor bean names if (this.beanFactory == null) { throw new IllegalStateException(No BeanFactory available anymore (probably due to serialization) + - cannot resolve interceptor names + Arrays.asList(this.interceptorNames)); } // Globals cant be last unless we specified a targetSource using the property... if (this.interceptorNames[this.interceptorNames.length - 1].endsWith(GLOBAL_SUFFIX) this.targetName == null this.targetSource == EMPTY_TARGET_SOURCE) { throw new AopConfigException(Target required after globals); } // Materialize interceptor chain from bean names. for (int i = 0; i this.interceptorNames.length; i++) { String name = this.interceptorNames[i]; if (logger.isTraceEnabled()) { logger.trace(Configuring advisor or advice + name + ); } if (name.endsWith(GLOBAL_SUFFIX)) { if (!(this.beanFactory instanceof ListableBeanFactory)) { throw new AopConfigException( Can only use global advisors or interceptors with a ListableBeanFactory); } addGlobalAdvisor((ListableBeanFactory) this.beanFactory, name.substring(0, name.length() - GLOBAL_SUFFIX.length())); } else { // If we get here, we need to