Dubbo java and go interoperability, with service discovery ands protocol

This example shows dubbo-go's service discovery and java-go interoperation feature with Nacos as registry.

before run the code, you should Follow the instruction to install and start Nacos server.

本示例针对 Dubbo3 版本用户，演示如何基于 Dubbo3 应用级服务发现实现 Java 与 Go 体系互调。

dubbo java 调用 dubbo go

1. 启动 go server

   go run ./go-server/cmd/server.go
   

2. 启动 java client

   ./java-client/run.sh
   

dubbo go 调用 dubbo java

本示例当前存在问题，请跟进排查：https://github.com/apache/dubbo-go/issues/2653

1. 启动 java server

   ./java-server/run.sh
   

2. 启动 go client

   go run ./go-client/cmd/client.go