责任链整体设计

ArapCapitalChain

+ doCapitalFlow

ContractArapCapitalChainDecorator

+ CapitalChainDecorator chain

+ decoratorMenthod+ doCapitalFlow

ContractCapitalFlowStrategy

+ getCapitalFlow

SaleCapitalChain

+ doCapitalFlow

CapitalChain

+ CapitalHandler next

+ analyseCapitalFLow+ doCapitalFlow

CapitalFlowStrategyFactory

+ strategyMap

+ getStrategy+ getInstance- init

ProjectArapCapitalChainDecorator

CapitalFlowUtil

+ wrapContractCapital+ doExtracteFlowGather

CapitalFLowRequest

+ id+ boEnum

PurchaseCapitalChain

DashBoardCapitalFlowDTO

+ contractTotalAmountWithTax+ contractTotalConfirmAmount

ExpenditureContractCapitalChain

ICapitalFlowStrategy

CapitalChainDecorator

+ CapitalChainDecorator chain

+ decoratorMenthod+ doCapitalFlow

ContractCapitalChain

ProjectCapitalFlowStrategy

缺点：过于复杂，每新增一个指标，都要新增一个责任链和对应责任链的装饰器，类的数量会越来越大优点：一旦完成，则后面可以在多维度上统计相关指标，可以随意装饰