dennsliu / go-zero-demomall

创建mall服务 mkdir go-zero-demomall cd go-zero-demomall go mod init go-zero-demomall

创建user rpc服务

$ mkdir -p mall/user/rpc 添加user.proto文件，增加getUser方法

$ vim mall/user/rpc/user.proto 写入ptoto代码,注意： 每一个 *.proto文件只允许有一个service error: only one service expected

生成rpc代码： goctl rpc protoc user.proto --go_out=./types --go-grpc_out=./types --zrpc_out=.

写业务逻辑 $ vim internal/logic/getuserlogic.go

创建 order api服务

回到项目根目录

$ mkdir -p order/api && cd order/api

添加api文件 $ vim order.api

生成order服务 $ goctl api go -api order.api -dir .

添加user rpc配置 到order $ vim internal/config/config.go package config import ( "github.com/zeromicro/go-zero/zrpc" "github.com/zeromicro/go-zero/rest" )

type Config struct { rest.RestConf UserRpc zrpc.RpcClientConf } 添加yaml配置 $ vim etc/order.yaml Name: order Host: 0.0.0.0 Port: 8888 UserRpc: Etcd: Hosts: - 127.0.0.1:2379 Key: user.rpc

完善服务依赖

$ vim internal/svc/servicecontext.go package svc

import ( "go-zero-demo/order/api/internal/config" "go-zero-demo/user/rpc/user"

"github.com/zeromicro/go-zero/zrpc"

)

type ServiceContext struct { Config config.Config UserRpc user.User }

func NewServiceContext(c config.Config) *ServiceContext { return &ServiceContext{ Config: c, UserRpc: user.NewUser(zrpc.MustNewClient(c.UserRpc)), } }

添加order演示逻辑

给 getorderlogic 添加业务逻辑

$ vim internal/logic/getorderlogic.go package logic

import ( "context" "errors"

"go-zero-demomall/order/api/internal/svc"
"go-zero-demomall/order/api/internal/types"
"go-zero-demomall/user/rpc/types/user"

"github.com/zeromicro/go-zero/core/logx"

)

type GetOrderLogic struct { logx.Logger ctx context.Context svcCtx *svc.ServiceContext }

func NewGetOrderLogic(ctx context.Context, svcCtx *svc.ServiceContext) GetOrderLogic { return GetOrderLogic{ Logger: logx.WithContext(ctx), ctx: ctx, svcCtx: svcCtx, } }

func (l *GetOrderLogic) GetOrder(req *types.OrderReq) (*types.OrderReply, error) { user, err := l.svcCtx.UserRpc.GetUser(l.ctx, &user.IdRequest{ Id: "1", }) if err != nil { return nil, err }

if user.Name != "test" {
    return nil, errors.New("用户不存在")
}

return &types.OrderReply{
    Id:   req.Id,
    Name: "test order",
}, nil

}

启动服务并验证# 启动etcd $ etcd 下载依赖

在 go-zero-demo 目录下

$ go mod tidy 启动user rpc

在 mall/user/rpc 目录

$ go run user.go -f etc/user.yaml Starting rpc server at 127.0.0.1:8080... 启动order api

在 mall/order/api 目录

$ go run order.go -f etc/order.yaml Starting server at 0.0.0.0:8888... 访问order api

$ curl -i -X GET http://localhost:8888/api/order/get/1

生成Dockerfile文件 cd ./user/rpc goctl docker --go user.go

cd ./order/api/ goctl docker --go order.go