c***：
为了拼接这个字符串，我是操碎了心还不能成功。

c***：


POST数据示例:
{"template_id":0,"ext_json":"JSON_STRING", //*ext_json需为string类型，请参考下面的格式*"user_version":"V1.0","user_desc":"test",}请问你是这样的错：
{
"template_id": 0,
"ext_json": "{ extAppid:""}",
"user_version": "V1.0",
"user_desc": "test"
}
还是这样的错：

{
"template_id": 0,
"ext_json": "{ " extAppid":""}",
"user_version": "V1.0",
"user_desc": "test"
}
应该是这样吧
{
"template_id": 0,
"ext_json": {
"extAppid": ""
},
"user_version": "V1.0",
"user_desc": "test"
}
根本不是字符串，ext_json里面是个对象，对吗官方人员
微信小程序 地图导航 路线规划
c***：
同样的access_token, 前一分钟说已经过期了，后面接着调用又没有问题！！这是怎么回事呀？


前后都是同样的access_token!! 前后相隔30秒，前一个请求失败，后一个请求成功！好诡异！！


2018-04-16 10:31:08.745 ERROR 14501 --- [ XNIO-2 task-9] c.z.wechat.business.service.OpenService :
【请求地址】: https://api.weixin.qq.com/wxa/commit?access_token=8_Q03Z9P61gQpbZXOD01BBnC7hJYcR7HfQoeS0bitI7fmEHks5k8iZaxWyzF_uQ7dWdMBOhKX6GRutJrn72J1oJwDIfj60r6BYs93MkhzbifMNeXvhChvQOAgRUaw_8DVjIEMa5B-RYgw8m2SBABBhAIDIJJ
【请求参数】：{"template_id":5,"user_version":"test","user_desc":"test","ext_json":"{\"extAppid\":\"wxfe8abcd6b6f66d7e\",\"ext\":{\"appid\":\"wxfe8abcd6b6f66d7e\",\"shopId\":\"5wtQr0lwDuPq8i2pYVN\",\"parentShopId\":\"shp_rZTmLWdQCvPU3xt1kPL\"},\"window\":{\"navigationBarTitleText\":\"海珠店\"}}"}
【错误信息】：{"errcode":40001,"errmsg":"invalid credential, access_token is invalid or not latest hint: [3t96CA08684525]"}
2018-04-16 10:31:08.748 ERROR 14501 --- [ XNIO-2 task-9] c.z.w.b.c.miniapp.service.CodeService : [commitCode error:]




2018-04-16 10:31:36.713 DEBUG 14501 --- [ XNIO-2 task-10] c.z.wechat.business.service.OpenService :
【请求地址】: https://api.weixin.qq.com/wxa/commit?access_token=8_Q03Z9P61gQpbZXOD01BBnC7hJYcR7HfQoeS0bitI7fmEHks5k8iZaxWyzF_uQ7dWdMBOhKX6GRutJrn72J1oJwDIfj60r6BYs93MkhzbifMNeXvhChvQOAgRUaw_8DVjIEMa5B-RYgw8m2SBABBhAIDIJJ
【请求参数】：{"template_id":5,"user_version":"test","user_desc":"test","ext_json":"{\"extAppid\":\"wxfe8abcd6b6f66d7e\",\"ext\":{\"appid\":\"wxfe8abcd6b6f66d7e\",\"shopId\":\"5wtQr0lwDuPq8i2pYVN\",\"parentShopId\":\"shp_rZTmLWdQCvPU3xt1kPL\"},\"window\":{\"navigationBarTitleText\":\"海珠店\"}}"}
【响应数据】：{"errcode":0,"errmsg":"ok"}


https://developers.weixin.qq.com/blogdetail?action=get_post_info&docid=0000c444300110bee49667b0856400&highline=ext.json&comment_lvl=6&comment_lvl=7&comment_lvl=8


c***：
{
"template_id": 0,
"ext_json": "{
\"extAppid\": \"\"
}",
"user_version": "V1.0",
"user_desc": "test"
}


c***：
{
"template_id":1,
"ext_json":"
{
\"extEnable\": true,
\"extAppid\": \" \",
\"directCommit\": false,
\"ext\": {
\"name\": \"wechat\",
\"attr\": {
\"host\": \"open.weixin.qq.com\",
\"users\": [
\"user_1\",
\"user_2\"
]
}
},
\"extPages\": {
\"pages/logs/logs\": {
\"navigationBarTitleText\": \"logs\"
}
},
\"window\": {
\"backgroundTextStyle\": \"light\",
\"navigationBarBackgroundColor\": \"#fff\",
\"navigationBarTitleText\": \"Demo\",
\"navigationBarTextStyle\": \"black\"
},
\"tabBar\": {
\"list\": [
{
\"pagePath\": \"pages/index/index\",
\"text\": \"首页\"
}
]
},
\"networkTimeout\": {
\"request\": 10000,
\"downloadFile\": 10000
}
}
",
"user_version":"V1.0",
"user_desc":"test"
}


微信小程序返回到webviw如何重新渲染webview页面