@Override

public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {

? ?Object result;

? ?try {

? ? ? ?//@Before

? ? ? ?result = method.invoke(target, args);

? ? ? ?//@AfterReturning

? ? ? ?return result;

? ?} catch (InvocationTargetException e) {

? ? ? ?Throwable targetException = e.getTargetException();

? ? ? ?//@AfterThrowing

? ? ? ?throw targetException;

? ?} finally {

? ? ? ?//@After

? ?}

}

兄弟，到底哪個版本是對的？？？？？？？

阿薩德

@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
? ?Object result;
? ?try {
? ? ? ?//@Before
? ? ? ?result = method.invoke(target, args);
? ? ? ?//@After
? ? ? ?return result;
? ?} catch (InvocationTargetException e) {
? ? ? ?Throwable targetException = e.getTargetException();
? ? ? ?//@AfterThrowing
? ? ? ?throw targetException;
? ?} finally {
? ? ? ?//@AfterReturning
? ?}
}

try{
	try{
		//@Before
		method.invoke(..);
	}finally{
		//@After
	}
	//@AfterReturning
}catch(){
	//@AfterThrowing
}

try
{
????//??執(zhí)行前置通知；
????
????//??執(zhí)行目標(biāo)方法；
????
????//?執(zhí)行返回通知；
}
catche(Exception?e)
{
????//?執(zhí)行異常通知；
}
finally
{
????//?執(zhí)行后置通知；
}

應(yīng)該是這樣的...

? ?//限定了返回值，可不寫,注意如果出現(xiàn)異常，則該設(shè)定不起作用,after returing對應(yīng)的方法不被執(zhí)行

?????<aop : after-returning ?returning = "retVar" ?method = "" ?pointcut-ref = "" />

????//after的執(zhí)行是在after returning之后，但無論方法是否正常結(jié)束， after通知都會被執(zhí)行

?????<aop : after ?method = "" ?pointcut = ?" " />

?after 對應(yīng)?target?執(zhí)行之后，?afterReturning??對應(yīng)在?target?處理后結(jié)果返回增強(qiáng)處理

可以看老師例子中after-returning和after對應(yīng)的輸出內(nèi)容進(jìn)行對比