gin: 打包模板文件、静态文件到二进制文件中

一，默认html模板不会打包到二进制文件中

如果二进制文件的当前目录下不包含html模板文件路径，会报错如下

$ ./mediabank 
[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    /static/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (3 handlers)
[GIN-debug] HEAD   /static/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (3 handlers)
panic: html/template: pattern matches no files: `templates/**/*.html`goroutine 1 [running]:
html/template.Must(...)/usr/local/soft/go/src/html/template/template.go:368
github.com/gin-gonic/gin.(*Engine).LoadHTMLGlob(0xc0001c3ba0, {0xa8207b, 0x13})/data/gopath/pkg/mod/github.com/gin-gonic/gin@v1.10.1/gin.go:263 +0x2f2
mediabank/routes.Routes()/data/goapp/mediabank/routes/routes.go:15 +0x5b
main.main()/data/goapp/mediabank/main.go:10 +0x13

二，用打包到二进制文件中

代码

main

package mainimport ("embed""mediabank/routes"
)// 嵌入文件只能为源码文件同级目录和子目录下的文件
//go:embed static/* templates/*
var embedFs embed.FS// 入口函数
func main() {//引入路由r := routes.Routes(embedFs)//runr.Run(":8080")
}

route

package routesimport ("embed""github.com/gin-gonic/gin""html/template""io/fs""mediabank/controller""net/http"
)func Routes(embedFs embed.FS) *gin.Engine {router := gin.Default()//1, 加载模板文件tmpl := template.Must(template.New("").ParseFS(embedFs, "templates/**/*.html"))router.SetHTMLTemplate(tmpl)//2, 加载静态文件fp, _ := fs.Sub(embedFs, "static")router.StaticFS("/static", http.FS(fp))//3,加载favicon//static是存放favicon.ico的目录faviconHandler := http.FileServer(http.FS(fp))router.GET("/favicon.ico", func(c *gin.Context) {faviconHandler.ServeHTTP(c.Writer, c.Request)})//mediamedia := controller.NewMediaController()mediaGroup := router.Group("/media"){mediaGroup.GET("/detail", media.Detail)mediaGroup.GET("/list", media.List)mediaGroup.GET("/user", media.User)}return router
}

三，运行结果:

$ ./mediabank 
[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    /static/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (3 handlers)
[GIN-debug] HEAD   /static/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (3 handlers)
[GIN-debug] GET    /favicon.ico              --> mediabank/routes.Routes.func1 (3 handlers)
[GIN-debug] GET    /media/detail             --> mediabank/controller.(*MediaController).Detail-fm (3 handlers)
[GIN-debug] GET    /media/list               --> mediabank/controller.(*MediaController).List-fm (3 handlers)
[GIN-debug] GET    /media/user               --> mediabank/controller.(*MediaController).User-fm (3 handlers)
[GIN-debug] [WARNING] You trusted all proxies, this is NOT safe. We recommend you to set a value.
Please check https://pkg.go.dev/github.com/gin-gonic/gin#readme-don-t-trust-all-proxies for details.
[GIN-debug] Listening and serving HTTP on :8080