What is Spring Cloud?

Brief introduction

Spring Cloud is an ordered collection of frames. It uses spring boot's development convenience to subtly simplify the development of distributed system infrastructures, such as service discovery registration, Configuration center, message bus, load balancer, circuit breakers, data monitoring, and so on, all of which can be started and deployed with spring boot development style.

Spring does not reinvent the wheel, it simply combines the more mature and proven service frameworks currently developed by companies, masking the complexities of configuration and implementation through the spring boot style, and ultimately leaving developers with a set of easy-to-understand, Easy-to-deploy and maintainable Distributed system Development Kit.

Current Latest Version: DALSTON.SR3

Official website: http://projects.spring.io/spring-cloud/

Characteristics

Spring Cloud is focused on providing a good out-of-the-box experience with typical use cases and extensibility mechanisms covered.

• Distributed/versioned Configuration

• Service Registration and Discovery

• Routing

• Service-to-service Call

• Load Balancing

• Circuit Breaker

• Distributed Message Delivery

Sub-project

Spring Cloud's sub-projects can be broadly divided into two categories: the encapsulation and abstraction of the existing mature framework "Spring boot", and the largest number of projects, and the second is the development of a subset of the distributed system infrastructure, such as the spring Cloud Stream plays the role of Kafka, Activemq. For developers who want to quickly practice microservices, the first category of sub-projects is enough to be used, such as:

• Spring Cloud Netflix

  is a package of distributed service frameworks developed by Netflix, including discovery and registration of services, load balancing, circuit breakers, rest clients, request routing, and so on.
  　　

• Spring Cloud Config

  The configuration information is externally stored and can be dynamically modified with spring Cloud bus.
  　　

• Spring Cloud Bus

  Distributed Message Queuing, which is the encapsulation of Kafka, MQ.
  　　

• Spring Cloud Security

  is the package of spring security that enables authentication calls and security protection between services, and can be used with Netflix.
  　　

• Spring Cloud Zookeeper

  The encapsulation of the zookeeper makes it possible to configure other spring cloud-enabled sub-projects.
  　　

• Spring Cloud Eureka

  is part of the Spring Cloud Netflix microservices Suite, which is based on the Netflix Eureka two times, and is primarily responsible for service governance capabilities in the MicroServices architecture.

Prospect

Spring Cloud is a boon for small and medium-sized internet companies, which often have little or no money to develop their own distributed system infrastructure, and the spring cloud one-stop solution can dramatically reduce development costs while managing business growth. At the same time, with the popularity of the microservices architecture and Docker container concept in recent years, Spring Cloud will have a niche in the future of "cloud" software development style, especially in the current variety of distributed solutions to provide a standardized, full-site technology solutions, The meaning may be comparable to the birth of the current servlet specification, and effectively advance the technical level of software system in the server.

And the contrast of Dubbo

component	Dubbo	Spring Cloud
service registry	Zookeeper	Spring Cloud Netflix Eureka
Service Invocation method	rpc	REST API
service Gateway	None	Spring Cloud Netflix zuul
Circuit Breaker	not perfect	Spring Cloud Netflix hystrix
Distributed configuration	none	Spring Cloud Config
Service Trace	none	Spring Cloud sleuth
message bus	none	Spring Cloud bus
Data Flow	None	Spring Cloud stream
Bulk Task	none	Spring Cloud task
...	...	...

So, the comparison shows there is no comparison, Dubbo is just a subset of Spring cloud, Spring Cloud is a series of distributed solution packages. However, with the current Dubbo official re-affirmed the maintenance and attention, the Dubbo biosphere will gradually become stronger.

Recommended: Spring Boot & Cloud's Strongest technology tutorials

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What is Spring Cloud?