ubuntu go 开发环境搭建

wget https://dl.google.com/go/go1.12.4.linux-amd64.tar.gz

sudo tar -zxvf go1.12.4.linux-amd64.tar.gz -C /opt

检查安装是否成功

cd /opt/go/bin

./go version

go version go1.12.4 linux/amd64

设置环境变量

vi /etc/profile

export GOROOT=/opt/go

export GOPATH=/home/ubuntu/go

export GOPROXY=https://goproxy.io

export GOARCH=amd64

export GOOS=linux

export GOTOOLS=$GOROOT/pkg/tool

export PATH=$PATH:$GOROOT/bin:$GOPATH/bin

source /etc/profile

其中，GOPROXY 可以解决 golang.org/x/... 系列包无法下载的问题。

编写 HelloWorld 文件，测试运行环境。

package main

import "fmt"

func main(){

    fmt.Println("hello,world!")

}

go run hello.go

go build hello.go

创建 go.mod 文件

go mod init hello

用 Gin 实现一个简单的 http 服务

import (

    "gopkg.in/gin-gonic/gin.v1"

    "net/http"

)

func main(){

    router := gin.Default()

    router.GET("/", func(c *gin.Context) {

        c.String(http.StatusOK, "Hello World")

    })

    router.Run(":8000")

}

直接编译执行

go run hello

可以看到引用的包都被自动下载了

go: finding github.com/gin-contrib/sse latest

go: finding github.com/gin-gonic/gin/render latest

go: finding github.com/gin-gonic/gin/binding latest

go: finding github.com/gin-gonic/gin/json latest

go: finding golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223

go: downloading golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223

go: finding gopkg.in/go-playground/validator.v8 v8.18.2

go: finding github.com/ugorji/go/codec latest

go: finding github.com/golang/protobuf/proto latest

go: finding gopkg.in/yaml.v2 v2.2.2

go: downloading gopkg.in/go-playground/validator.v8 v8.18.2

go: downloading gopkg.in/yaml.v2 v2.2.2

go: finding github.com/ugorji/go v1.1.4

go: finding github.com/golang/protobuf v1.3.1

go: downloading github.com/ugorji/go v1.1.4

go: downloading github.com/golang/protobuf v1.3.1

go: extracting gopkg.in/go-playground/validator.v8 v8.18.2

go: extracting gopkg.in/yaml.v2 v2.2.2

go: extracting github.com/golang/protobuf v1.3.1

go: extracting github.com/ugorji/go v1.1.4

go: extracting golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223

go: finding gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405

HTTP 服务启动正常，可以通过浏览器访问了。

[GIN-debug] [WARNING] Now Gin requires Go 1.6 or later and Go 1.7 will be required soon.

[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.

[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.

 - using env:   export GIN_MODE=release

 - using code:  gin.SetMode(gin.ReleaseMode)

[GIN-debug] GET    /                         --> main.main.func1 (3 handlers)

[GIN-debug] Listening and serving HTTP on :8000

巴特西

ubuntu go 开发环境搭建

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