困扰我的一个问题，每次通过toOauth访问WeiXinOauthController或直接访问WeiXinOauthController都显示访问2次，以至于第2次无法获取openid，因为code只能用1次，第2次就获取不到accesstoken和oauth了，请问如何处理？

[ERROR]-[Thread: http-nio-8080-exec-7]-[com.jfinal.kit.LogKit.error()]: retry on 1 times but not matching v = {"errcode":40163,"errmsg":"code been used, hints: [ req_id: 4Kgc3a0768th19 ]"}
2017-12-04 01:22:48
[ERROR]-[Thread: http-nio-8080-exec-7]-[com.jfinal.kit.LogKit.error()]: retry on 2 times but not matching v = {"errcode":40163,"errmsg":"code been used, hints: [ req_id: 0768th21 ]"}
2017-12-04 01:22:48
[ERROR]-[Thread: http-nio-8080-exec-7]-[com.jfinal.kit.LogKit.error()]: retry on 3 times but not matching v = {"errcode":40163,"errmsg":"code been used, hints: [ req_id: PaF.uA0768th44 ]"}
2017-12-04 01:22:48
[INFO]-[Thread: http-nio-8080-exec-7]-[com.javen.weixin.controller.WeiXinOauthController.index()]: token:null
2017-12-04 01:22:48
[WARN]-[Thread: http-nio-8080-exec-7]-[com.javen.weixin.controller.WeiXinOauthController.index()]: getUserInfo:{"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest, hints: [ req_id: xc0768s150 ]"}