这就是我刚生成的二维码，时间也没过，扫出来是失效的

{

    "ticket": "gQHx8DwAAAAAAAAAAS5odHRwOi8vd2VpeGluLnFxLmNvbS9xLzAyT1d4LTREdjFkMTQxcjNCNmh5Y2MAAgSHpUZiAwQ8AAAA",

    "expire_seconds": 60,

    "url": "http://weixin.qq.com/q/02OWx-4Dv1d141r3B6hycc"

}