遞升序列 的英文怎麼說
中文拼音 [dìshēngxùliè]
遞升序列
英文
ascending sequence-
At the same time j2ee platform technologies are discussed deeply, such as j2ee platform technologies, communication technologies, ejb component technologies and so on. the design model based on the mvc frame is applied in the system development, so that the separation between the present logic and the business logic in the application is realized. finally, according to the problems found in the development process, the paper explains particularly the kay technologies in the realization : the uniform naming service is realized by realizing the service locator partten using the value object pattern, all the status data is encapsulated into a serializable object, then transferred among the client, sessionbean and entitybean in order to decrease the potential network traffic caused by reference of entitybean ; in order to improve the performance of data storing and taking, we introduce the facade model to escapsulate the ejbs which delegate the data model
本論文結合了杭州市財政局的會計人員從業資格管理系統的升級項目，研究了基於j2ee的ejb組件模型的多層分散式體系結構的設計與實現：深入探討了三種分散式處理技術（ rmi ， corba ， com ）的區別，將j2ee平臺的ejb技術與windowsdna體系的com +技術從多個角度進行了比較；詳細闡述了在系統開發過程中j2ee平臺的幾項核心技術（如： j2ee平臺的服務技術、通信技術、 ejb組件技術等）的應用；引入了源於mvc三部件框架的設計模式，實現了應用中表現邏輯與業務邏輯的分離；最後，結合在開發過程中遇到的問題，詳細解釋了開發過程中實現的關鍵點：用servicelocator模式實現了統一的命名服務管理；運用valueobject模式將所有狀態數據包裝成一個可序列化對象vo ，然後在客戶機、 sessionbean與entitybean之間傳遞，減少了使用實體bean造成的潛在網路通信量；以及引入sessionfacade模式，用sessionbean封裝了entitybean ，改善了數據存取的性能。
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