This approach reduces code redundancy and greatly simplifies troubleshooting and upgrades 這種方法降低了代碼冗余,并且極大地簡化了故障診斷和升級工作。
Enterprise information system framework provides a series of reusable groupware , such as persistence layer which introduces dynamic value object 、 value list hander and command pattern , it encapsulates the detail of accessing database and affords the interface of different persistence layer framework ; basing on asynchronous javascript and xml ( ajax for short ) , we develops the client validity check engine 、 dynamic cascading menu and common 、 dynamic tree structure groupware , as well as a set of tag library which include query 、 pagination 、 cache an so on . they reduce the code redundancy and predigests the development of interface layer enormously ; the security subsystem which is based on secure socket layer ( ssl for short ) and role - based access control ( rbac for short ) ensures the data security transmission and privilege control . furthermore , the model of enterprise application integration ( eai for short ) which based on web services , it supply some helpful explore for the sake of system integration and data communion for the future 企業信息系統框架提供了一系列可復用組件,例如采用動態vo 、值列表處理器以及命令模式的持久層組件,封裝了數據庫訪問細節,并為不同的持久層框架提供調用接口;基于ajax ( asynchronousjavascriptandxml )技術的客戶端校驗引擎、動態級聯菜單以及通用動態樹型結構組件,一系列查詢、分頁、緩存等標簽庫則減少了表示層的代碼冗余,簡化了表示層開發;基于ssl登錄以及基于角色的訪問控制的安全子系統則初步實現了數據安全傳輸和權限控制;此外基于web服務的企業應用集成模型為今后系統集成、數據共享提供了有益探索。
In the optimal design of loop pipe networks , an improved genetic algorithm ( ipga ) based on integer coding is introduced in this paper . not only the problem of coding redundancy is avoided , but also the practicability and computation efficiency are greatly improved . also the optimal calibre combination scheme can be got within a larger solution space and the goal of less investment is realized 應用基于整數編碼的改進遺傳算法進行環狀管網管徑優化設計,既可避免編碼冗余問題,又可提高算法的實用性和計算效率,并能在較大解空間范圍內獲得最優管徑組合方案以實現盡可能小的管網投資。