静态文件服务

  1. func main() {
  2.     router := gin.Default()
  4.     //设置静态文件目录，如果访问localhost:8080/assets/test.txt
  5.     //如果./assets/test.txt文件存在，那么就返回该文件，否则返回404
  6.     router.Static("/assets", "./assets")
  8.     //和上面的功能一样
  9.     router.StaticFS("/my_file", gin.Dir("my_file",true))
  11.     //为单个文件绑定路由
  12.     //可以通过访问localhost:8080/family.pic来获取./pic/family.pic文件
  13.     router.StaticFile("/family.pic", "./pic/family.pic")
  15.     router.Run()
  16. }

从 reader 提供数据

  1. func main() {
  2.     router := gin.Default()
  3.     router.GET("/someDataFromReader", func(c *gin.Context) {
  4.         response, err := http.Get("https://raw.githubusercontent.com/gin-gonic/logo/master/color.png")
  5.         if err != nil || response.StatusCode != http.StatusOK {
  6.             c.Status(http.StatusServiceUnavailable)
  7.             return
  8.         }
  9.         reader := response.Body
  10.         contentLength := response.ContentLength
  11.         contentType := response.Header.Get("Content-Type")
  12.         extraHeaders := map[string]string{
  13.             "Content-Disposition": `attachment; filename="gopher.png"`,
  14.         }
  15.         c.DataFromReader(http.StatusOK, contentLength, contentType, reader, extraHeaders)
  16.     })
  17.     router.Run(":8080")
  18. }

HTML 渲染

使用 LoadHTMLGlob () 或 LoadHTMLFiles ()

  1. func main() {
  2.     router := gin.Default()
  3.     router.LoadHTMLGlob("templates/*")
  4.     //router.LoadHTMLFiles("templates/template1.html", "templates/template2.html")
  5.     router.GET("/index", func(c *gin.Context) {
  6.         c.HTML(http.StatusOK, "index.tmpl", gin.H{
  7.             "title": "Main website",
  8.         })
  9.     })
  10.     router.Run(":8080")
  11. }

templates/index.tmpl

  1. <html>
  2.     <h1>
  3.         {{ .title }} //使用.来取变量
  4.     </h1>
  5. </html>

与embed结合

  1. package main
  3. import (
  4.     "embed"
  5.     "net/http"
  7.     "github.com/gin-gonic/gin"
  8. )
  10. //go:embed static
  11. var static embed.FS
  13. func main() {
  14.     router := gin.Default()
  16.     router.StaticFS("/", http.FS(static))
  17.     //router.StaticFS("/", gin.Dir("static", true))
  19.     router.Run(":8080")
  20. }