Spring的Aop的实现方式

public class TxHandler implements InvocationHandler{
 8    private Object originalObject;
 9    public Object bind(Object obj){
10        this.originalObject = obj;
11        return Proxy.newProxyInstance(obj.getClass().getClassLoader(),
12                obj.getClass().getInterfaces(),this);
13    }
14    //加入buy ticket ,check ticket
15    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
16        Object result = null;
17        if(method.getName().startsWith("seat")){
18            System.out.println("buy ticket");
19            result = method.invoke(originalObject, args);
20            System.out.println("check ticket"