1.创建项目

按照官网的教程创建order和user两个服务
https://go-zero.dev/cn/micro-service.html?h=grpc

创建好的目录结构：

├── mall                                 
│       └── order                    // order服务
│          └──....
│       └── user                        // user服务
│          └──....
│       └── go.mod                   
│       └── go.sum                     

2.修改代码支持nacos

参考https://github.com/zeromicro/zero-contrib/tree/main/zrpc/registry/nacos

2.1 安装依赖

go get -u github.com/zeromicro/zero-contrib/zrpc/registry/nacos

2.2 修改service代码

• mall/user/rpc/user.go:
  !!注意：git上的参考代码并没有写全，可以正常注册到nacos上但是服务没有提供任何接口

package main

import (
    "flag"
    "github.com/nacos-group/nacos-sdk-go/common/constant"
    "github.com/zeromicro/go-zero/core/conf"
    "github.com/zeromicro/go-zero/core/service"
    "github.com/zeromicro/go-zero/zrpc"
    "github.com/zeromicro/zero-contrib/zrpc/registry/nacos"
    _ "github.com/zeromicro/zero-contrib/zrpc/registry/nacos"
    "go-zero-test1/mall/user/rpc/internal/config"
    "go-zero-test1/mall/user/rpc/internal/server"
    "go-zero-test1/mall/user/rpc/internal/svc"
    "go-zero-test1/mall/user/rpc/types/user"
    "google.golang.org/grpc"
    "google.golang.org/grpc/reflection"
)

var configFile = flag.String("f", "mall/user/rpc/etc/user.yaml", "the config file")

func main()  {
    flag.Parse() 

    var c config.Config
    conf.MustLoad(*configFile, &c)
    ctx := svc.NewServiceContext(c)
    srv := server.NewUserServer(ctx)

    serverRpc:= zrpc.MustNewServer(c.RpcServerConf, func(grpcServer *grpc.Server) {
        user.RegisterUserServer(grpcServer, srv)

        if c.Mode == service.DevMode || c.Mode == service.TestMode {
            reflection.Register(grpcServer)
        }
    })
    // 注册服务
    sc := []constant.ServerConfig{
        *constant.NewServerConfig("127.0.0.1", 8848),
    }

    cc := &constant.ClientConfig{
        NamespaceId:         "public",
        TimeoutMs:           50000,
        NotLoadCacheAtStart: true,
        LogDir:              "D:/tmp/nacos/log",
        CacheDir:            "D:/tmp/nacos/cache",
        RotateTime:          "1h",
        MaxAge:              300,
        LogLevel:            "debug",
    }

    opts := nacos.NewNacosConfig("user.rpc", c.ListenOn, sc, cc)
    _ = nacos.RegitserService(opts)
    serverRpc.Start()
}

2.3修改client代码

• mall/order/api/order.go：
  加上这句话就好了

_ "github.com/zeromicro/zero-contrib/zrpc/registry/nacos"

完整代码：

package main

import (
    "flag"
    "fmt"

    "github.com/zeromicro/go-zero/core/conf"
    "github.com/zeromicro/go-zero/rest"
    _ "github.com/zeromicro/zero-contrib/zrpc/registry/nacos"
    "go-zero-test1/mall/order/api/internal/config"
    "go-zero-test1/mall/order/api/internal/handler"
    "go-zero-test1/mall/order/api/internal/svc"
)

var configFile = flag.String("f", "mall/order/api/etc/order.yaml", "the config file")

func main() {
    flag.Parse()

    var c config.Config
    conf.MustLoad(*configFile, &c)

    ctx := svc.NewServiceContext(c)
    server := rest.MustNewServer(c.RestConf)
    defer server.Stop()

    handler.RegisterHandlers(server, ctx)

    fmt.Printf("Starting server at %s:%d...\n", c.Host, c.Port)
    server.Start()
}

• mall/order/api/etc/order.yaml：

Name: order
Host: 0.0.0.0
Port: 8888
UserRpc:
  Target: nacos://127.0.0.1:8848/user.rpc?namespaceid=public&timeout=5000s

3.运行

依次运行nacos、user服务和order服务

• nacos启动命令：

 .\startup.cmd -m standalone

浏览器输入

http://localhost:8888/api/order/get/1

返回

{
    "id": "1",
    "name": "test order"
}