What is the method used by Dubbo to invoke RPC?

The method of calling RPC in Dubbo is by configuring a Dubbo service interface and referencing it in the client to make remote calls. The specific steps are as follows:

1. Configure Dubbo service interface: Specify the service interfaces that need to be remotely called in the Dubbo configuration file, including the implementation class and necessary parameters.
2. When referencing a service interface at the client end: In the client’s code, you can reference the Dubbo service interface that needs to be called by injecting the reference through Spring’s annotations or XML configuration.
3. Remote service invocation: By referencing the service interface object and calling the defined method, Dubbo will automatically send the request to the remote service provider and return the result.

In summary, Dubbo’s RPC calling method involves referencing the configured service interface and parameters, then invoking the interface method to achieve remote calling. Dubbo framework automatically handles the details of remote calling, such as load balancing and fault tolerance.