反射机制塞入值

烁雨

于 2019-09-02 11:32:24 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/k_x_sh/article/details/100215987

public static void main(String[] args) throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {

    FrontUser frontUser = new FrontUser();
    Method setTimeMethod = null;
    Method getTimeMethod = null;
    Class<?> entityClass = frontUser.getClass();
    getTimeMethod = entityClass.getMethod("getPhone");
    Object createTime = getTimeMethod.invoke(frontUser);
    if (createTime == null) {
        setTimeMethod = entityClass.getMethod("setPhone", String.class);
        setTimeMethod.invoke(frontUser, DateUtil.getDate());//当前时间
    }
    System.out.println(frontUser);// phone就是当前时间
}