swaggo基本使用

1.安装

swag cli : go get -u github.com/swaggo/swag/cmd/swag
gin-swagger 中间件: go get github.com/swaggo/gin-swagger
swagger 内置文件: go get github.com/swaggo/gin-swagger/swaggerFiles

2.样例

具体注释信息请参考
http://www.topgoer.com/%E5%85...

package main

import (
    "github.com/gin-gonic/gin"
    _ "golangdemo/docs"
    "net/http"
)

var swagHandler gin.HandlerFunc


// @title xiayuedu backend api
// @version 1.0
// @description this is xiayuedu backend server
// @termsOfService https://xiayuedu.com
//
// @contact.name xiayuedu.com
// @contact.url https://xiayuedu.com
// @contact.name www.xiayuedu.com
//
// @contact.email
// @license.name Apache 2.0
// @license.url https://xiayuedu.com
// @host 127.0.0.1:8089
// @BasePath /api/v1
func main() {
    engine := gin.Default()
    if swagHandler != nil {
        engine.GET("/swagger/*any",swagHandler)
    }


    v1 := engine.Group("/api/v1")
    {
        v1.GET("/hello", HelloHandler)
    }
    engine.Run(":8089")

}

// @Summary hellohandler
// @Description hellohandler
// @Tags 测试
// @Accept json
// @Produce json
// @Param name query string true "名字"
// @Param age query string true "年龄"
// @Success 200 {string} string "{"msg":""hello razeen"}"
// @Failure 400 {string} string "{"msg":""who are you"}"
// @Router /hello [get]
func HelloHandler(ctx *gin.Context){
    name := ctx.Query("name")
    age := ctx.Query("age")
    if name == "" {
        ctx.JSON(http.StatusBadRequest,gin.H{"message":"who are you"})
        return
    }
    ctx.JSON(http.StatusOK,gin.H{"message":"hello " + name + " " + age})
}

执行命令

swag init
init之后，需要导入生成的包 _ "golangdemo/docs"
go run main.go

3.生产环境不需要swaggo的文档

可以使用go build -tags "dev" 来指定生成文档
定义一个全局变量

var swagHandler gin.HandlerFunc

func main() {
    -----
    if swagHandler != nil {  //如果不为nil才初始化
        engine.GET("/swagger/*any",swagHandler)
    }
    -----
}

创建另外一个文件，指定build tag

// +build dev       

package main

import (
    ginSwagger "github.com/swaggo/gin-swagger"
    "github.com/swaggo/gin-swagger/swaggerFiles"
    _ "golangdemo/docs"
)


func init() {
    swagHandler = ginSwagger.WrapHandler(swaggerFiles.Handler)
}

go build指定tag 生产环境build不指定tag

go build -tags "dev"

.\golangdemo.exe

结果