• 从 reader 读取数据

    从 reader 读取数据

    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.         }
    10.         reader := response.Body
    11.         contentLength := response.ContentLength
    12.         contentType := response.Header.Get("Content-Type")
    14.         extraHeaders := map[string]string{
    15.             "Content-Disposition": `attachment; filename="gopher.png"`,
    16.         }
    18.         c.DataFromReader(http.StatusOK, contentLength, contentType, reader, extraHeaders)
    19.     })
    20.     router.Run(":8080")
    21. }