本文選題：面向服務(wù)的架構(gòu) + Web服務(wù)��； 參考：《華中科技大學(xué)》2014年碩士論文

【摘要】：隨著企業(yè)業(yè)務(wù)需求的不斷變化及擴(kuò)充，如何有效整合各企業(yè)及企業(yè)各部門之間的業(yè)務(wù)資源，滿足用戶多樣性的功能需求，已成為一項(xiàng)日益重要的課題。在這種環(huán)境之下，Web Service應(yīng)運(yùn)而生。Web Service基于一系列底層標(biāo)準(zhǔn)，通過注冊、發(fā)布及發(fā)現(xiàn)等機(jī)制，將公共的服務(wù)提供給用戶。以服務(wù)為基礎(chǔ)的SOA（Service OrientedArchitecture）架構(gòu)，能夠有效屏蔽分布式計(jì)算環(huán)境下異構(gòu)的底層環(huán)境，可以構(gòu)建面向服務(wù)的、松耦合的、靈活的企業(yè)應(yīng)用。因而越來越多的企業(yè)將自己的業(yè)務(wù)功能打包成服務(wù)發(fā)布。 然而，單一的服務(wù)無法滿足企業(yè)業(yè)務(wù)快速變化的需求。通過服務(wù)組合技術(shù)，可以將單一的、細(xì)粒度的服務(wù)通過有效的編排或重組，能夠生成粗粒度的、復(fù)雜的、具有業(yè)務(wù)價(jià)值的服務(wù)，實(shí)現(xiàn)業(yè)務(wù)增值�；谶@種構(gòu)想，在2002年8月，IBM，Microsoft及BEA聯(lián)合提出業(yè)務(wù)流程執(zhí)行語言BPEL(Business Process Execution Language)。BPEL使用XML標(biāo)準(zhǔn)格式來描述Web服務(wù)如何重組以形成新的服務(wù)，并生成標(biāo)準(zhǔn)文件交由BPEL執(zhí)行引擎部署。隨著企業(yè)業(yè)務(wù)模型日益復(fù)雜及用戶需求的動態(tài)變化，，基于BPEL-SOA的架構(gòu)方式已不能滿足應(yīng)用需求。主要表現(xiàn)在如下方面：一方面，相對固定的業(yè)務(wù)流程無法滿足業(yè)務(wù)動態(tài)變化的需要；另一方面，服務(wù)本身缺少主動性及協(xié)調(diào)合作的能力。 基于業(yè)務(wù)集成的現(xiàn)狀及不足，論文提出了一種基于ECA(Event-Condition-Activity)規(guī)則的服務(wù)組合方式，通過引入基于ECA規(guī)則的事件機(jī)制，可以動態(tài)地調(diào)用Web服務(wù)，提升Web服務(wù)之間的協(xié)調(diào)感知能力，滿足復(fù)雜多變的業(yè)務(wù)需求。 論文首先介紹了當(dāng)前主流的業(yè)務(wù)集成架構(gòu)方案SOA，并提出了基于SOA的服務(wù)組合技術(shù)BPEL。然后，在其不足之上，引入了ECA規(guī)則的概念及工作模型，以事件驅(qū)動Web服務(wù)按一定規(guī)則自動運(yùn)行。最后，提出了基于ECA規(guī)則的服務(wù)組合技術(shù)，闡述了其系統(tǒng)架構(gòu)及組成模塊，并以實(shí)驗(yàn)驗(yàn)證其可行性。
[Abstract]:With the continuous changes and expansion of business requirements, how to effectively integrate the business resources between enterprises and departments to meet the diverse functional needs of users has become an increasingly important issue.In this environment, web Service emerges as the times require. Web Service, based on a series of underlying standards, provides common services to users through mechanisms such as registration, publication and discovery.Service-based SOA(Service oriented Architecture architecture can effectively shield the heterogeneous underlying environment in distributed computing environment, and can build service-oriented, loosely coupled, flexible enterprise applications.As a result, more and more enterprises package their business functions into service publishing.However, a single service cannot meet the rapidly changing needs of enterprise business.Through service composition technology, single, fine-grained services can be effectively orchestration or reorganization, can generate coarse-grained, complex, business value services, and achieve business value.Based on this idea, in August 2002, IBM / Microsoft and BEA jointly proposed that the business process execution language BPEL(Business Process Execution Language).BPEL use XML standard format to describe how Web services can be reorganized to form new services, and generate standard files to be deployed by BPEL execution engine.With the increasing complexity of enterprise business models and the dynamic changes of user requirements, the architecture based on BPEL-SOA can no longer meet the application requirements.On the one hand, the relatively fixed business process can not meet the needs of business dynamic change; on the other hand, the service itself lacks the ability of initiative and coordination and cooperation.Based on the current situation and shortcomings of business integration, a service composition method based on Event-Condition-Activity rules is proposed in this paper. By introducing the event mechanism based on ECA rules, we can dynamically invoke Web services and enhance the ability of coordination awareness among Web services.Meet complex and changeable business requirements.Firstly, this paper introduces the current mainstream business integration architecture, SOA, and proposes a service composition technology based on SOA, BPEL.Then, the concept and working model of ECA rules are introduced to drive Web services to run automatically according to certain rules.Finally, the service composition technology based on ECA rules is proposed, and the system architecture and module are described, and the feasibility of the technology is verified by experiments.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.09

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