1.前端页面
<html> <head> 上传文件 </head> <body> <form enctype="multipart/form-data" action="http://127.0.0.1:9090/upload" method="post"> <input type="file" name="uploadfile" /> <input type="hidden" name="token" value="{{.}}" /> <input type="submit" value="upload" /> </form> </body> </html>
2.后端处理逻辑
package main import ( "crypto/md5" "fmt" "html/template" "io" "log" "net/http" "os" "strconv" "time" ) func upload(w http.ResponseWriter, r *http.Request) { fmt.Println("method:", r.Method) if r.Method == "GET" { //begin这里开始计算一个时间戳用于填充到模板中的隐藏标签中 currenttime := time.Now().Unix() h := md5.New() io.WriteString(h, strconv.FormatInt(currenttime, 10)) token := fmt.Sprintf("%x", h.Sum(nil)) //end t, _ := template.ParseFiles("upload.html") t.Execute(w, token) } else { r.ParseMultipartForm(32 << 20) file, handler, err := r.FormFile("uploadfile") if err != nil { fmt.Println(err) return } defer file.Close() fmt.Fprintf(w, "%v", handler.Header) f, err := os.OpenFile("./test/"+handler.Filename, os.O_WRONLY|os.O_CREATE, 0666) if err != nil { fmt.Println(err) return } defer f.Close() io.Copy(f, file) } } func main() { http.HandleFunc("/upload", upload) //设置访问的路由 err := http.ListenAndServe(":9090", nil) //设置监听的端口 if err != nil { log.Fatal("ListenAndServe: ", err) } }