To use local file as service registry center, you can configure it in application.properties as follows:
com.alipay.sofa.rpc.registry.address=local:///home/admin/registry/localRegistry.reg
The /home/admin/registry/localRegistry.reg is the directory of the local files to be used.
On windows OS, the above path indicates the following directory:
com.alipay.sofa.rpc.registry.address=local://c://users/localRegistry.reg