微服务架构（从无到有）二.第一个微服务micro+gin+consul Demo 客户端demo开发

这个分两步，一个是打通对外的接口，一个是打通网关
用gin起对外的接口

1.修改 proto/user_api.proto

syntax = "proto3";

package user_srv;

option go_package = "./proto;user_srv";

service User_srv {
	rpc GetUserInfo(RequestUserId) returns (ResponseUserInfo) {}
}

message RequestUserId {
	int64 userId = 1;
}

message ResponseUserInfo {
	string accountName = 1;
	string userName = 2;
	string passWord = 3;
	string department = 4;
	string email = 5;
	string status = 6;
	int32  role = 7;
}

之后执行make proto
2.创建api文件夹
mkdir api
cd api
vim user.go

package api

import (
	"net/http"

	"github.com/gin-gonic/gin"
)

func GetUserInfo(ctx *gin.Context) {
	ctx.JSON(http.StatusOK,
		gin.H{
			"code":     200,
			"total":    "ok",
			"accounts": "获取用户信息",
		})
}

3.创建routers文件夹
mkdir routers
cd routers
vim routers

package routers

import (
	"user_api/api"

	"github.com/gin-gonic/gin"
)

func InitRouters() *gin.Engine {
	ginRouter := gin.Default()

	ginRouter.GET("/users/", func(context *gin.Context) {
		context.String(200, "get userinfos")
	})
	ginRouter.GET("/getUserInfo/", api.GetUserInfo)

	return ginRouter
}

4.创建global，存储公共链接
mkdir golabl
cd golabl
vim global

package global

import (
	"github.com/micro/go-micro/v2/registry"
	"github.com/micro/go-plugins/registry/consul/v2"
)

var (
	//consul链接
	ConsulClient = consul.NewRegistry(registry.Addrs("127.0.0.1:8500"))
)

5.编写main.go

package main

import (
	"user_api/global"
	"user_api/routers"

	"github.com/micro/go-micro/v2/web"
)

func main() {
	//3. 初始化routers
	ginRouter := routers.InitRouters()

	consulReg := global.ConsulClient

	//注册服务
	microService := web.NewService(
		web.Name("user.client"),
		web.Address(":18001"),
		web.Registry(consulReg),
		web.Handler(ginRouter),
	)
	err := microService.Run()
	if err != nil {
		return
	}

}

6.执行go mod tidy,更新依赖包，运行main.go

到这已经运行成功，并且注册到consul
访问端口我这里设置成本机的18001 端口
127.0.01:18001/users/
127.0.01:18001/getUserInfo/

项目地址