spring笔记

1 spring MethodReplacer 的reimplement是用来替换的，不能通过反射调用方法，否则会陷入死循环

public class CellWrapper implements MethodReplacer{public Object reimplement(Object obj, Method method, Object[] args) throws Throwable {System.out.println("替换前");method.invoke(obj, args);//错误System.out.println("after replace");return null;}}

2.spring 事件核心代码

public void multicastEvent(final ApplicationEvent event) {for (final ApplicationListener listener : getApplicationListeners(event)) {Executor executor = getTaskExecutor();if (executor != null) {executor.execute(new Runnable() {public void run() {listener.onApplicationEvent(event);}});}else {listener.onApplicationEvent(event);}}}