关键词: 单体应用, 面向服务体系结构（SOA）, Web服务, 微服务, 微服务框架

Abstract: In order to improve the scalability of enterprise-level applications, the microservice-based software architecture can be used to divide a monolithic application into a set of small services which can cooperate with each other. This will allow us to develop these services freely, deploy them independently and maintain them easily, so it can satisfy the demand of business development better. At present, as specific solutions of the microservices architecture, some microservices frameworks have been successfully implemented by many large enterprise and open source. This paper mainly discusses and compares the concepts of service-oriented architecture, Web services and microservices, and presents the key technologies and core functional modules in the practice of microservices architecture. Then, it analyzes and compares the characteristics and core components of mainstream implementation frameworks of microservices architecture. Finally, it analyzes the challenges of microservices composition and service composition schemes in microservice framework, and summarizes this paper.

Key words: monolithic application, Service-Oriented Architecture（SOA）, Web service, microservices, microservice framework