SpringAOP 被切入的方法的參數獲取

Map<String, Object> getMethodParam(Class<?> cls, JoinPoint joinPoint) throws Exception {
        Object[] args = joinPoint.getArgs();
        String classType = joinPoint.getTarget().getClass().getName();
        Class<?> clazz = Class.forName(classType);
        String clazzName = clazz.getName();
        String methodName = joinPoint.getSignature().getName(); // 獲取方法名稱

        Map<String, Object> map = new HashMap<String, Object>();

        ClassPool pool = ClassPool.getDefault();
        ClassClassPath classPath = new ClassClassPath(cls);
        pool.insertClassPath(classPath);

        CtClass cc = pool.get(clazzName);
        CtMethod cm = cc.getDeclaredMethod(methodName);
        MethodInfo methodInfo = cm.getMethodInfo();
        CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
        LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
        if (attr == null) {
            // exception
        }
        int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
        for (int i = 0; i < cm.getParameterTypes().length; i++) {
            map.put(attr.variableName(i + pos), args[i]);// paramNames即參數名
        }
        return map;
    }