查看“Gin”的源代码

 [[category:go]]
=install=
==pre install golang==
[[Golang]]
<pre>
#apt 
#可以指定版本的
sudo apt install  golang

sudo apt  install golang-go gccgo-go
sudo apt  install golang-go 
</pre>

==FQ==
<pre>
tail  /etc/profile
#export http_proxy=http://192.168.10.173:8888
#export https_proxy=http://192.168.10.173:8888


source /etc/profile
</pre>

== install Gin package==
  export PATH=/usr/local/go/bin/:$PATH
  export GOPATH=/root/go #if U user is root 
=== If you're in China===
====如果您使用的 Go 版本是 1.13 及以上 ====
<pre>
go env -w GO111MODULE=on #注意这个打开后面可能会问题导致
go env -w GOPROXY=https://goproxy.io,direct

#or
go env -w GOPROXY=https://mirrors.aliyun.com/goproxy/,direct

# 设置不走 proxy 的私有仓库，多个用逗号相隔（可选）
go env -w GOPRIVATE=*.corp.example.com

# 设置不走 proxy 的私有组织（可选）
go env -w GOPRIVATE=example.com/org_name
</pre>

====Go 版本是 1.12 及以下 ====
<pre>
# 启用 Go Modules 功能
export GO111MODULE=on
# 配置 GOPROXY 环境变量
export GOPROXY=https://goproxy.io
</pre>

或者，根据[https://goproxy.io/zh/docs/getting-started.html 文档]可以把上面的命令写到.profile或.bash_profile文件中长期生效


=初始化 gin=
==go mod==
<pre>
go env -w GO111MODULE=on #注意这个打开后面可能会问题导致
go env -w GOPROXY=https://goproxy.io,direct

cd   mygo/
mkdir  ginweb
cd ginweb/
go mod init ginweb(名字自定义)
go get -u github.com/gin-gonic/gin #注意 ，用go mod 来管理  june   08 2020  goverdor 已过期 请用 go mod  安装一般用下面的goverdor 版本管理 tool 去安装 这一块可以直接跳过
 go run example.go 

ps 
evan@myxps:~/mygo/ginweb$ echo $GOROOT
/home/evan/go
evan@myxps:~/mygo/ginweb$ echo $GOPATH
/home/evan/go

#别人的例子
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
</pre>

== 放弃了 Use a vendor tool like Govendor==
  go get -u -v github.com/kardianos/govendor
  go get github.com/kardianos/govendor #在墙外非常快

 sudo apt  install govendor # apt 

 mkdir -p $GOPATH/src/github.com/myusername/project && cd "$_"

===Vendor init your project and add gin ===
 <pre>
govendor init
govendor fetch github.com/gin-gonic/gin@v1.3

#有时要绝对路径  @后面也可以不加  有时一定要加
/root/go/bin/govendor fetch github.com/gin-gonic/gin@v1.6
</pre>

=learn=
https://github.com/astaxie/build-web-application-with-golang

https://github.com/avelino/awesome-go


https://learnku.com/docs/gin-gonic/2019

=IDE=

[https://www.jianshu.com/p/c5368dbd8bf9 golnad and 50.Go Mod 来创建 Gin 项目]

=trouble=
== working directory is not part of a module==
<pre>

关闭go代理就行了 

ct$ go run main.go 
main.go:6:2: cannot find module providing package github.com/gin-gonic/gin: working directory is not part of a module
evan@myxps:~/go/src/github.com/myusername/project$ go env -w GO111MODULE=off

</pre>


==1.6 err==
<pre>
# go   run main.go 
# github.com/myusername/project/vendor/github.com/gin-gonic/gin
vendor/github.com/gin-gonic/gin/context.go:36:26: undefined: binding.MIMEYAML
vendor/github.com/gin-gonic/gin/context.go:600:29: undefined: binding.YAML
vendor/github.com/gin-gonic/gin/context.go:605:29: undefined: binding.Header
vendor/github.com/gin-gonic/gin/context.go:659:31: undefined: binding.YAML
vendor/github.com/gin-gonic/gin/context.go:664:31: undefined: binding.Header
vendor/github.com/gin-gonic/gin/context.go:673:9: undefined: binding.Uri
vendor/github.com/gin-gonic/gin/context.go:896:17: undefined: render.PureJSON
vendor/github.com/gin-gonic/gin/context.go:912:17: undefined: render.ProtoBuf
vendor/github.com/gin-gonic/gin/context.go:1027:7: undefined: binding.MIMEYAML
vendor/github.com/gin-gonic/gin/mode.go:83:2: undefined: binding.EnableDecoderDisallowUnknownFields

</pre>

=see also=


[https://www.jianshu.com/p/a3f63b5da74c Gin实战：Gin+Mysql简单的Restful风格的API]


[https://blog.csdn.net/qq_34284638/article/details/104944319  Golang 入门-Gin框架安装及使用]



[https://blog.csdn.net/VanciorH/article/details/96314896  Golang（不存在）的包管理]


==go mod==
[https://www.cnblogs.com/apocelipes/p/9534885.html  golang包管理解决之道——go modules初探 ]

[https://blog.csdn.net/yangyangye/article/details/97243826 go mod常用命令 以及 常见问题]

[https://blog.csdn.net/sanbingyutuoniao123/article/details/100903028  go语言web框架gin安装(go mod方式)]

==放弃govendor==
[https://blog.csdn.net/huwh_/article/details/77169858  Golang包管理工具（一）之govendor的使用]

[https://blog.csdn.net/studyhard232/article/details/81637607  govendor的安装与实践]

[https://my.oschina.net/u/3628490/blog/2245119 golang使用govendor教程]

[https://www.cnblogs.com/shockerli/p/go-package-manage-tool-govendor.html Go 包依赖管理工具 —— govendor]

[https://zhuanlan.zhihu.com/p/59191567 Go Mod对比Go Vendor]

[https://www.jianshu.com/p/88669ba57d04 Govendor使用]