英文:
How to get path and filename from postman request body using Go
问题
这个问题已经被问过了，但是没有解决我的问题。
在我的Go项目中，我无法打印路径和文件名。它显示了以下错误：
2021/10/13 16:25:07 http: panic serving [::1]:60170: runtime error: invalid memory address or nil pointer dereference goroutine 6 [running]:
我的Postman集合
我的代码
package main
import (
"fmt"
"net/http"
"github.com/gorilla/mux"
)
func encodeFfmpeg(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "multipart/form-data")
_, header, _ := r.FormFile("video")
fmt.Println(header.Filename)
}
func main() {
router := mux.NewRouter()
router.HandleFunc("/encode", encodeFfmpeg).Methods("POST")
// 配置端口
fmt.Printf("Starting server at 8080 \n")
http.ListenAndServe(":8080", router)
}
我试图打印带有路径的文件名，例如：/home/ramesh/videos/video.mp4
英文:
This question already asked but it is not solve my issue.
In my Go project am not able to print path and filename. It is showing some error like below:
2021/10/13 16:25:07 http: panic serving [::1]:60170: runtime error: invalid memory address or nil pointer dereference
goroutine 6 [running]:
My Postman collection
my code
package main
import (
"fmt"
"net/http"
"github.com/gorilla/mux"
)
func encodeFfmpeg(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "multipart/form-data")
_, header, _ := r.FormFile("video")
fmt.Println(header.Filename)
}
func main() {
router := mux.NewRouter()
router.HandleFunc("/encode", encodeFfmpeg).Methods("POST")
// config port
fmt.Printf("Starting server at 8080 \n")
http.ListenAndServe(":8080", router)
}
>Am trying to print filename with path eg: /home/ramesh/videos/video.mp4
答案1
得分: 2
发送的请求中在Content-Type头部中缺少boundary参数。这个参数在multipart/form-data中是必需的，以使其正常工作。
在Postman中删除显式的Content-Type头部设置，并让Postman自动设置带有boundary参数的头部。
更多信息请参见：https://stackoverflow.com/a/16022213/965900 和 https://stackoverflow.com/a/41435972/965900
最后但并非最不重要的是，不要忽略错误。
英文:
The sent request is missing the boundary parameter in the Content-Type header. This parameter is required for multipart/form-data to work properly.
In Postman remove the explicit Content-Type header setting and leave it to Postman to automatically set the header with the boundary parameter.
For more see: https://stackoverflow.com/a/16022213/965900 & https://stackoverflow.com/a/41435972/965900
Last but not least, do not ignore errors.
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