2019/3/29 13:34:23: 拿到code的url是：https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxbb5067ab5bad9403&redirect_uri=https%3a%2f%2fcoop.360lj.com%2fweb%2fsupplymobile%2fbindphone&response_type=code&scope=snsapi_base&state=1#wechat_redirect
2019/3/29 13:34:23: 获取openid 前 GetCodeUrls：https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxbb5067ab5bad9403&redirect_uri=https%3a%2f%2fcoop.360lj.com%2fweb%2fsupplymobile%2fbindphone&response_type=code&scope=snsapi_base&state=1#wechat_redirect
2019/3/29 13:34:24: 拿到的url是：https://api.weixin.qq.com/sns/oauth2/access_token?appid=wxbb5067ab5bad9403&secret=cde93471b773ce25b1688e391872b13f&code=061XG05T1nhyz517Vb4T1YY95T1XG05T&grant_type=authorization_code
2019/3/29 13:34:24: 获取到的result是{"access_token":"20_bPsMtzSQSMRfdNWM-QF4h8ByTINwnh35w4yJdRV511A_sbtvyTAiWgVl6L8XT744mA-KlcLTHdf6iMfRCgSMHQ","expires_in":7200,"refresh_token":"20_nuA_XQ7yPV_NwD4K2lJh6-m_bNodVlSA0KlpcsETYVn20ELbpnnMt7dJ3LxNc2F3AQABNgMQ_cBz0I8oO7WoOQ","openid":"oCzgS1fzaxA3nGpu5pnldkSar1pA","scope":"snsapi_base"}
2019/3/29 13:34:24: 能否从html里拿到openid=oCzgS1fzaxA3nGpu5pnldkSar1pA
2019/3/29 13:34:24: 走完获取openid的方法之后，当前Session的值是：oCzgS1fzaxA3nGpu5pnldkSar1pA
