时至今日Go的版本已经来到了1.12 在1.11的时候Go正式推出了go mod 在此之前dep等第三方依赖工具百花齐放。go mod出来之后有助于像java的maven一样能够有一个比较统一的代码依赖管理。
1.go mod有哪些命令：
download download modules to local cache edit edit go.mod from tools or scripts graph print module requirement graph init initialize new module in current directory tidy add missing and remove unused modules vendor make vendored copy of dependencies verify verify dependencies have expected content why explain why packages or modules are needed
2.如何使用
执行 go mod init会初始化一个mod管理的项目 在项目路径下会有两个文件go.mod go.sum
//go.mod 示例 记录的是依赖管理 module resources-server require ( github.com/gin-contrib/sse v0.0.0-20170109093832-22d885f9ecc7 // indirect github.com/gin-gonic/gin v1.3.0 github.com/go-yaml/yaml v2.1.0+incompatible github.com/golang/protobuf v1.2.0 // indirect github.com/json-iterator/go v1.1.5 // indirect github.com/mattn/go-isatty v0.0.4 // indirect github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect github.com/modern-go/reflect2 v1.0.1 // indirect github.com/ugorji/go/codec v0.0.0-20181116192919-e105254e6a51 // indirect gopkg.in/go-playground/validator.v8 v8.18.2 // indirect gopkg.in/yaml.v2 v2.2.1 // indirect )
// go.sum 记录的是版本变更 github.com/gin-contrib/sse v0.0.0-20170109093832-22d885f9ecc7 h1:AzN37oI0cOS+cougNAV9szl6CVoj2RYwzS3DpUQNtlY= github.com/gin-contrib/sse v0.0.0-20170109093832-22d885f9ecc7/go.mod h1:VJ0WA2NBN22VlZ2dKZQPAPnyWw5XTlK1KymzLKsr59s= github.com/gin-gonic/gin v1.3.0 h1:kCmZyPklC0gVdL728E6Aj20uYBJV93nj/TkwBTKhFbs= github.com/gin-gonic/gin v1.3.0/go.mod h1:7cKuhb5qV2ggCFctp2fJQ+ErvciLZrIeoOSOm6mUr7Y= github.com/go-yaml/yaml v2.1.0+incompatible h1:RYi2hDdss1u4YE7GwixGzWwVo47T8UQwnTLB6vQiq+o= github.com/go-yaml/yaml v2.1.0+incompatible/go.mod h1:w2MrLa16VYP0jy6N7M5kHaCkaLENm+P+Tv+MfurjSw0= github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
3.关于“墙”的问题
设置代理export GOPROXY=https://goproxy.io 在以后的版本可能会逐步取消go path 自己下载包安装比较麻烦 自行替换依赖也比较麻烦