【摘要】：隨著企業(yè)的信息系統(tǒng)建設變得多樣化和復雜化。如何進一步整合已有信息化資源,已成為提高信息化水平的關鍵。因此,企業(yè)需要尋求一種有效的技術手段,以屏蔽系統(tǒng)間的差異性,實現(xiàn)已有系統(tǒng)間的交互與共享,達到重用企業(yè)己有系統(tǒng)的目的,迅速對靈活變化的業(yè)務需求做出反應。同時,系統(tǒng)設計不僅僅是局部功能的實現(xiàn),而是充分結合用戶需求,把功能包裝成服務以供用戶使用,用戶以最低的操作成本,來完成功能操作進而獲得結果。 以服務作為基本組件,采用統(tǒng)一的Web服務封裝不同的遠程應用來實現(xiàn)應用間的互聯(lián)互通。以Web Services作為SOA服務架構的實現(xiàn)方式,基于接口描述可以有效解決系統(tǒng)間的緊耦合性,并通過服務描述、發(fā)布、發(fā)現(xiàn)和調用標準來提供了服務協(xié)作的基礎。 本文以航務海事綜合平臺為應用背景,航務海事綜合平臺整合來自不同系統(tǒng)的Web遠程應用,是向用戶提供服務整合性平臺。該平臺需要向外提供功能單一的服務和具有完整解決方案的組合服務。而在日漸增多的服務請求者、服務提供者的環(huán)境中,傳統(tǒng)服務調用已經無法保障不會給系統(tǒng)帶來巨大壓力。為更好的解決以上問題,本文的主要觀點如下： (1)為緩解傳統(tǒng)服務調用時查找、加載服務帶來的時間消耗。采用分層緩存結構,分別為組合服務層、以功能邏輯作為劃分基礎的功能服務層,提高服務的查找效率；同時,以池的方式來緩存服務調用實例,避免服務實例頻繁的創(chuàng)建和銷毀帶來的資源消耗,進而提高服務的響應速度。 (2)航務海事綜合平臺整合需要的Web服務已經不是單一的Web服務,而是由一組有序的Web服務組合而成�；谄脚_的特點對服務協(xié)作模型的進行了深入的研究,提出了基于XML的服務協(xié)作方式。 通過結合航務海事綜合平臺當前的服務調用情況,提出了基于多層緩存池機制的SOA服務協(xié)作模型,并對此進行了詳細的分析設計,并對其給予實現(xiàn)。
[Abstract]:With the construction of enterprise information system become diversified and complicated. How to further integrate the existing information resources, has become the key to improve the level of informatization. Therefore, enterprises need to seek an effective technical means to shield the differences between systems, realize the interaction and sharing among existing systems, achieve the purpose of reusing enterprises' own systems, and respond quickly to the flexible changes of business requirements. At the same time, the system design is not only the implementation of local functions, but also fully combined with the needs of users, packaging the functions into services for users to use, users with the lowest operating cost to complete the functional operations and obtain results. Using the service as the basic component, the unified Web service is used to encapsulate the different remote applications. Using Web Services as the implementation mode of SOA services architecture, interface description can effectively solve the tight coupling between systems, and service collaboration is provided by service description, publication, discovery and invocation standards. The application background of this paper is the integrated platform of maritime affairs, which integrates the remote application of Web from different systems, and provides the service integration platform to the users. The platform needs to provide a single service and a composite service with a complete solution. However, in the increasing number of service requesters and service providers, the traditional service invocation can no longer guarantee that it will not bring great pressure to the system. In order to solve the above problems, the main points are as follows: (1) the time consumption caused by loading the service to ease the traditional service call lookup. It adopts hierarchical cache structure, which is composed of composition service layer, and takes functional logic as the basic function service layer to improve the searching efficiency of the service, at the same time, the instance of service invocation is cached in the way of pool. The resource consumption caused by the frequent creation and destruction of service instance is avoided and the response speed of service is improved. (2) the Web service needed by the integration of maritime and maritime integrated platform is not a single Web service, but composed of a group of ordered Web services. Based on the characteristics of the platform, the service collaboration model is deeply studied, and the service collaboration mode based on XML is proposed. In this paper, a SOA service cooperation model based on multi-layer buffer pool mechanism is put forward, which is based on the current service invocation of the integrated platform of shipping and maritime affairs, and the detailed analysis and design of this model are given, and the implementation of the model is given.
【學位授予單位】：大連海事大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.09;F270.7;F552

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