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2. What is Feign? Feign is also a hard role, and it is designed to make Java Http clients easier. Feign integrates Ribbon and RestTemplate to make load balancing Http calls, but encapsulates the original way (Ribbon+RestTemplate). Instead of manually using RestTemplate to invoke services, developers define an interface in which service call ...

This article introduces an important role in microservices: gateway. As for how to select a gateway, Alibaba has not yet selected a gateway. Of course, it has chosen Spring cloud Gateway. After all, it is my son. The article contents are as follows: Why do I need a gateway? In the traditional monomer architecture, only one service is ope ...

1. General As the old saying goes: if one road doesn't work, go the other way. If plan A can't be implemented, follow Plan B. It's always useful to prepare more plans.   Well, let's get down to business. Today, let's talk about the distributed configuration center Config of spring cloud. There are many service nodes in the microservice architec ...

Modification of spring cloud gateway server webexchange core method and request or response content premise The Spring Cloud Gateway version used at the time of writing this article is the latest version Greenwich.SR1 at that time. When using Spring Cloud Gateway, we noticed that filters (including GatewayFilter, GlobalFilter and filter chai ...

SpringCloud Config configuration center summary What is it? SpringCloud Config provides centralized external configuration support for microservices in the microservice architecture. The configuration server provides a centralized external configuration for all environments of different microservice applications. How do you play? Spring c ...

As one of the subprojects of Spring Cloud, Spring Cloud OpenFeign provides a solution for calls between services under the microservice architecture by integrating OpenFeign into Spring Boot applications. Firstly, we use the declarative way of OpenFeign to define the Web service client; Secondly, it goes further by integrating Ribbon or Eureka ...

The book follows the above and continues to learn SpringCloud Config from Mr. Zhou Yang. It is hereby sorted out as follows 1, Config configuration center In the distributed system, due to the huge number of services, in order to facilitate the unified management and real-time update of service configuration files, distributed configurati ...

Spring cloud learning notes 1, Study Preface 1.1 learning premise Proficient in using SpringBoot microservice rapid development frameworkLearned about Dubbo + Zookeeper distributed FoundationThe computer configuration memory shall not be less than 8G(16G and above are recommended) 1.2 article outline Five components of Spring Cloud S ...

1. Introduction Eureka cluster provides partition function. The design concept of this function comes from the two basic concepts of region and zone created by Amazon cloud AWS: Region: region refers to different regions in the physical sense. During service deployment, multiple computer rooms will be built and services will be deployed in ar ...

spring Cloud gateway has the following features: Dynamic routing: it can match any request attribute; You can specify Predicate assertions and filters for routes Integrate spring cloud service discovery Easy to write Predicate assertions and filters Request current limiting function Support path rewriting Three core concepts route: Ro ...