Spring

Circular references between beans are now prohibited by default. If your application fails to start due to a BeanCurrentlyInCreationException you are strongly encouraged to update your configuration to break the dependency cycle. If you are unable to do so, circular references can be allowed again by setting spring.main.allow-circular-references to true, or using the new setter methods on SpringApplication and SpringApplicationBuilder This will restore 2.5’s behaviour and automatically attempt to break the dependency cycle.

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Spring Cloud provides tools for developers to quickly build some of the common patterns in distributed systems (e.g. configuration management, service discovery, circuit breakers, intelligent routing, micro-proxy, control bus, short lived microservices and contract testing). Coordination of distributed systems leads to boiler plate patterns, and using Spring Cloud developers can quickly stand up services and applications that implement those patterns. They will work well in any distributed environment, including the developer’s own laptop, bare metal data centres, and managed platforms such as Cloud Foundry.

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Nacos is an easy-to-use platform designed for dynamic service discovery and configuration and service management. It helps you to build cloud native applications and microservices platform easily.

The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.