Spring ExposeBeanNameIntroduction

	@SuppressWarnings("serial")
	private static class ExposeBeanNameIntroduction extends DelegatingIntroductionInterceptor implements NamedBean {

		private final String beanName;

		public ExposeBeanNameIntroduction(String beanName) {
			this.beanName = beanName;
		}

		@Override
		public Object invoke(MethodInvocation mi) throws Throwable {
			if (!(mi instanceof ProxyMethodInvocation)) {
				throw new IllegalStateException("MethodInvocation is not a Spring ProxyMethodInvocation: " + mi);
			}
			ProxyMethodInvocation pmi = (ProxyMethodInvocation) mi;
			// 设置属性
			pmi.setUserAttribute(BEAN_NAME_ATTRIBUTE, this.beanName);
			return super.invoke(mi);
		}

		@Override
		public String getBeanName() {
			return this.beanName;
		}
	}