Gin+Go-Micro简单小案例

落日映苍穹つ 2022-12-29 14:13 37阅读 0赞

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