PlantUML练习系列----APP微信支付流程

@startuml
skinparam backgroundColor #EEEBDC

skinparam sequence {
    ArrowColor DeepSkyBlue
    ActorBorderColor DeepSkyBlue
    LifeLineBorderColor blue
    LifeLineBackgroundColor #A9DCDF

  ParticipantBorderColor DeepSkyBlue
  ParticipantBackgroundColor DodgerBlue
  ParticipantFontName Impact
  ParticipantFontSize 17
  ParticipantFontColor #A9DCDF

    ActorBackgroundColor aqua
    ActorFontColor DeepSkyBlue
    ActorFontSize 17
    ActorFontName Aapex
}

title "登录过程"

participant user


actor "用户" as user
participant "微信客户端" as wx
participant "APP客户端" as app
participant "商户后台系统" as A
participant "微信支付系统" as D

autonumber
user->app:打开APP客户端
activate user
activate app #FF0000
app->app:选择商品下单
activate app #FF0000
deactivate app
app->A:请求生成支付订单
activate A #FF0000
A->A:生成带签名的客户端支付信息
activate A #FF0000
deactivate A
A->D:调用统一下单API
activate D
D->D:生成预付单
activate D
deactivate D
D-->A:返回预付单信息(prepay_id)
deactivate D

A-->app:返回信息(prepay_id,sign等)
deactivate A
deactivate app

user->app:用户确认支付
activate app #FF0000
app->wx:支付参数调用SDK调起微信支付
activate wx
wx->D:发起微信支付请求
activate D
D->D:验证支付参数、APP支付权限等
activate D
deactivate D
D-->wx:返回需要的支付授权
deactivate D
deactivate wx
deactivate app
deactivate D

user->wx:用户确认支付，输入密码
activate wx
wx->D:提交支付授权
activate D
D->D:验证授权，完成支付交易
activate D
deactivate D
alt 并行处理
D-->wx:返回支付结果，发送微信消息提示
D->A:异步通知商户支付结果
activate A #FF0000
A->A:接受和保存支付通知
activate A #FF0000
deactivate A
A-->D:返回告知已成功接受处理
deactivate A

deactivate D
end

wx->app:将支付状态通过商户APP已经实现的回调结构执行回调
activate app #FF0000
app->A:后台查询实际支付结果
activate A #FF0000
alt 未收到支付通知
A->D:调用微信查询API查询支付结果
activate D
D-->A:返回支付结果
deactivate D
end
A-->app:返回支付结果
deactivate A


app-->user:展示支付结果
deactivate app
deactivate wx
deactivate user
deactivate app

app->app:商户发货
activate app #FF0000
activate app #FF0000
deactivate app
deactivate app




@enduml