Golang實現http檔案上傳小功能
阿新 • • 發佈：2019-01-29
package main import ( "fmt" "io" "net/http" "os" ) func main() { http.HandleFunc("/", index) http.HandleFunc("/upload", upload) http.ListenAndServe(":1789", nil) } func upload(w http.ResponseWriter, r *http.Request) { r.ParseMultipartForm(32 << 20) file, handler, err := r.FormFile("uploadfile") if err != nil { fmt.Println(err) return } defer file.Close() f, err := os.OpenFile(handler.Filename, os.O_WRONLY|os.O_CREATE, 0666) if err != nil { fmt.Println(err) return } defer f.Close() io.Copy(f, file) fmt.Fprintln(w, "upload ok!") } func index(w http.ResponseWriter, r *http.Request) { w.Write([]byte(tpl)) } const tpl = `<html> <head> <title>上傳檔案</title> </head> <body> <form enctype="multipart/form-data" action="/upload" method="post"> <input type="file" name="uploadfile" /> <input type="hidden" name="token" value="{...{.}...}"/> <input type="submit" value="upload" /> </form> </body> </html>`