Design And Implementation Of A Car Order System

The car service to meet people's needs for high-quality car services,car services for the need to design car order system to complete the background business logic.Car order system is divided into order status processing module,operational pricing module,payment module,the basic service module 4 modules.Order status processing module to achieve the order,send orders,orders,the driver arrived,the beginning of the trip,the end of the trip and other orders in the process of changing the state of business logic,including the revised order status,notify partners and other logic.The realization of operational activities includes the issuance,display and deduction of the coupons.The calculation of the order cost information needs to calculate the payment price of the order and the corresponding expense details.The operation cost calculation module is used to calculate the order expense information.The payment module realizes the payment function of the order and records the payment information of the order.The basic service module implements the functions of public base class,external service interface and common tool method.The common base class mainly refers to the base class of the routing layer and the database access layer,which is inherited by the service logic interface.The external service interface includes partner service interface,Map service interface and other dependent external service interfaces.Common tools include generating signatures,order status mapping and other methods.Database design to the main form of the table,the other table as a supplement to the order form,record orders for payment,coupons,logs and other information.Car order system operating environment is unix system odp environment.After the test and the actual online operation,car orders system can achieve the desired design requirements,on-line can be stable operation,the user can complete the taxi process from the estimated to pay all aspects of the function.