The Lihe software system has been sublimated on SOA. The microservice architecture emphasizes that the business needs to be completely componentized and service-oriented. In the microservice architecture, the business logic of the system is split into a series of small and loosely coupled distributed components (components generally refer to applications), which together constitute a larger application. Each component is called a microservice, and each microservice performs a separate task or function in the overall architecture. Each microservice may be called by one or more other microservices to perform specific tasks that the larger application needs to complete.

1. By implementing componentization through services, developers no longer need to coordinate the impact of other service deployments on this service.

2. Divide services and development teams according to business capabilities. Developers can freely choose development technologies and provide API services.

3. Decentralization:

Each microservice has its own private database to persist business data.

Each microservice can only access its own database, but not the databases of other services.

In some business scenarios, multiple databases need to be updated in one transaction. In this case, the databases of other microservices cannot be directly accessed.

Reduce the coupling between microservices. Different services can use different database technologies.

In complex business scenarios, if multiple microservices are involved, they are usually processed on the client or in the middle layer (gateway).