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exposeProxy

((Pojo) AopContext.currentProxy()).bar();

如果调用了AopContext.currentProxy，需要把exposeProxy设置true，否则会报下面错误:

Exception in thread "main" java.lang.IllegalStateException: Cannot find current proxy: Set 'exposeProxy' property on Advised to 'true' to make it available.

JdkDynamicAopProxy

public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {    if (this.advised.exposeProxy) {  //只有true的时候，才设置AopContext.setCurrentProx	    // Make invocation available if necessary.	    oldProxy = AopContext.setCurrentProxy(proxy);	    setProxyContext = true;    }}

AopContext

AopContext 其实就是1个ThreadLocal，通过当前线程得到代理类，前提是currentProxy要设置true

public final class AopContext {	/**	 * ThreadLocal holder for AOP proxy associated with this thread.	 * Will contain {@code null} unless the "exposeProxy" property on	 * the controlling proxy configuration has been set to "true".	 * @see ProxyConfig#setExposeProxy	 */	private static final ThreadLocal

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