企業電子商務的迅猛發展已經改變了分布式系統的規模，傳統的基于請求/應答的點對
點、同步通信已不能滿足大規模動態分布式應用環境。基于SOA 的發布/訂閱系統模型是目前廣泛使用的通信模型，支持發布者和訂閱者之間在時間、空間和控制流方面的非耦合以及多對多通信模式，提供了分布式系統所要求的松散耦合。本文提出并實踐了一種基于SOA 的發布/訂閱系統設計方法，為大規模分布式環境中應用系統之間的協作提供了有力保障。
關鍵詞面向服務的體系架構；分布/訂閱系統；服務；分布式系統
Abstract The fast-developing e-business of enterprises has changed the scales of distributed
systems,where making the point0to-point and synchronous communication based on request/reply paradigm is not enough for the large-sacles dynamically distributed application environment. The SOA-based publish/subscribe system model supports many-to-many communication and time,space,and control flow of subscribers and publishers and provides the loose coupled form of interaction required in the lage-scale system. In order to cooperate among the entities in a large-scale distributed system,the paper presents and practices a design model of SOA-based publish/subscribe system.
Keywords SOA,publish/subscrib system,service,distributed system