Gin+Go-Micro简单小案例

1.go环境配置

[guest@localhost test]$ vi /etc/profile
...
export GOROOT=/usr/local/go
export GOBIN=/root/go/bin
export GOPATH=/root/go
export PATH=$PATH:$GOBIN
export PATH=$PATH:$GOROOT/bin
[guest@localhost test]$ source /etc/profile

2.micro框架安装

[guest@localhost test]$ go get -u github.com/micro/micro
[guest@localhost test]$ go get -u github.com/golang/protobuf/protoc-gen-go
[guest@localhost test]$ go get github.com/micro/protobuf/proto
[guest@localhost test]$ go get github.com/micro/protoc-gen-micro

3.启动consul

[guest@localhost]$ docker run -itd -p 8300:8300 -p 8301:8301 -p 8301:8301/udp -p 8302:8302/udp -p 8302:8302 -p 8400:8400 -p 8500:8500 -p 53:53/udp --name consul consul

4.编写main.go

package main

import (
	"fmt"
	"strconv"

	"github.com/gin-gonic/gin"
	"github.com/micro/go-micro/v2/registry"
	"github.com/micro/go-micro/v2/web"
	"github.com/micro/go-plugins/registry/consul/v2"
)

var reg registry.Registry

func init() {
    
    
	reg = consul.NewRegistry(registry.Addrs("127.0.0.1:8500")) // consul.NewRegistry(registry.Addrs("127.0.0.1:8500"))
}

func initWeb() *gin.Engine {
    
    
	r := gin.Default()
	r.GET("/math/add", func(c *gin.Context) {
    
    
		x, _ := strconv.Atoi(c.Query("x"))
		y, _ := strconv.Atoi(c.Query("y"))
		z := x + y
		c.String(200, fmt.Sprintf("z=%d", z))
	})
	return r
}

func main() {
    
    
	service := web.NewService(
		web.Name("math_service"),
		web.Address(":50000"),
		web.Handler(initWeb()),
		web.Registry(reg),
	)
	_ = service.Run()
}

5.运行测试

[guest@localhost test]$ go mod init && go mod tidy
[guest@localhost test]$ go run main.go
[guest@localhost test]$ curl http://localhost:50000/math/add?x=5&y=6
z=11
可以在浏览器访问:8500查看当前注册的服务