[go語言]同時上傳表單欄位和檔案

這是一個建立於 的文章，其中的資訊可能已經有所發展或是發生改變。

直接貼代碼吧。

服務端：

package mainimport ("fmt""io""io/ioutil""net/http")func main() {http.HandleFunc("/upload", upload)http.ListenAndServe(":8080", nil)}func upload(w http.ResponseWriter, r *http.Request) {reader, err := r.MultipartReader()if err != nil {fmt.Fprintln(w, err)return}for {part, err := reader.NextPart()if err == io.EOF {break}if err != nil {fmt.Fprintf(w, "unexpected error: %s\n", err)break}data, err := ioutil.ReadAll(part)if err != nil {fmt.Fprintln(w, err)continue}fmt.Printf("FormName(%s),FileName(%s)=>%s\n", part.FormName(), part.FileName(), string(data))}}

用戶端：

package mainimport ("bytes""fmt""io/ioutil""mime/multipart""net/http")func main() {var buff bytes.Bufferwriter := multipart.NewWriter(&buff)writer.WriteField("field", "this is a field")w, _ := writer.CreateFormFile("file", "test.txt")w.Write([]byte("this is a file"))writer.Close()var client http.Clientresp, err := client.Post("http://127.0.0.1:8080/upload", writer.FormDataContentType(), &buff)if err != nil {fmt.Println(err)return}defer resp.Body.Close()data, _ := ioutil.ReadAll(resp.Body)fmt.Println(string(data))}