UML 用例图
Categories: 编程
表示
- 系统：矩形块，语法是
rectangle
- 执行者：火柴人，语法是
actor
- 用例：椭圆，语法是
usecase
- 关系
- 关联：执行者和用例之间的关系，
实线 + 实心箭头，语法是 ->
- 包含：用例之间的关系，
虚线箭头 + <<include>>，语法示例 UC1 ..> UC2 : <<include>>
- 扩展：用例之间的关系，
虚线箭头 + <<extend>>，语法示例 UC1 ..> UC2 : <<extend>>
- 泛化：继承关系，
实线 + 空心箭头，语法示例 UC1 <|-- UC2
View Code
```
@startuml
left to right direction
actor 客户 as Actor
actor 银行 as Actor2
rectangle "某银行App" {
usecase "转账" as UC1
usecase "查询余额" as UC2
usecase "理财" as UC3
usecase "贷款" as UC4
usecase "评估资产" as UC5
usecase "提示限额" as UC6
}
Actor <|-up- 个人用户
Actor <|-up- 企业用户
Actor --> UC1
Actor --> UC2
Actor --> UC3
Actor --> UC4
UC1 ----> Actor2
UC2 ----> Actor2
UC3 ----> Actor2
UC4 ----> Actor2
UC4 .left.> UC5 :<>
UC1 <.down. UC6 :<>
@enduml
```
</details>
# 时序图
时序图是一种 UML 中的行为图，用于描述对象之间的交互行为。时序图显示了对象之间的交互顺序，它展示了对象之间的消息传递顺序，以及这些消息如何触发对象的行为和状态变化。
示例
```
@startuml
hide footbox
skinparam style strictuml
autonumber 1
actor "用户" as User
participant SyncPlusTopicChannel as SyncPlusTopicChannel
participant SyncManager as SyncManager
participant SyncDownTask as SyncDownTask
participant SyncPlusReliableChannel as SyncPlusReliableChannel
participant SyncPlusDatabaseManager as SyncPlusDatabaseManager
participant SyncPlusBizChannelPool as SyncPlusBizChannelPool
participant BizOrDataListener as Listener
activate User
User -> SyncPlusTopicChannel : dispatch
activate SyncPlusTopicChannel
SyncPlusTopicChannel -> SyncManager : startDownSync
activate SyncManager
SyncManager -> SyncDownTask : process
activate SyncDownTask
loop#lightblue
opt#pink
SyncDownTask -> SyncDownTask : getDifference
end
SyncDownTask -> SyncDownTask : parseData
SyncDownTask -> SyncPlusReliableChannel : onReceived
activate SyncPlusReliableChannel
autonumber 7 "0"
group 第一个异步处理
SyncPlusReliableChannel ->> SyncPlusDatabaseManager : Insert
activate SyncPlusDatabaseManager
return ack
return ack
deactivate SyncPlusDatabaseManager
SyncDownTask -> SyncDownTask : updateSyncInfo
end
autonumber 7 "0"
group 第二个异步处理
loop#lightblue 如果第 15 步返回有缓存数据
SyncPlusReliableChannel ->> SyncPlusBizChannelPool:AddSyncData
activate SyncPlusReliableChannel
activate SyncPlusBizChannelPool
SyncPlusBizChannelPool -> Listener : OnReceived/OnToolong2
activate Listener
return
return
SyncPlusReliableChannel -> SyncPlusReliableChannel : onSyncDataObjectAckSuccess
deactivate SyncPlusBizChannelPool
SyncPlusReliableChannel -> SyncPlusDatabaseManager : Remove
activate SyncPlusDatabaseManager
/'可以用 return 来代替
SyncPlusReliableChannel <-- SyncPlusDatabaseManager
deactivate SyncPlusDatabaseManager
'/
return
'可以用 ++ 来代替 activate'
SyncPlusReliableChannel -> SyncPlusDatabaseManager ++ : Read
return
end
end
SyncDownTask <-- SyncPlusReliableChannel
deactivate SyncPlusReliableChannel
end
autonumber 11 "0"
SyncDownTask --> SyncManager
alt#Gold 第一个异步处理的loop结束
SyncManager -> SyncManager : endDownSync
end
deactivate SyncDownTask
SyncPlusTopicChannel <-- SyncManager
deactivate SyncManager
User <-- SyncPlusTopicChannel
deactivate SyncPlusTopicChannel
@enduml
```