完成基本上传功能

main.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"crypto/md5"
+	"fmt"
+	"html/template"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"strconv"
+	"time"
+)
+
+
+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)
+	}
+}
+
+
+// 处理/upload 逻辑
+func upload(w http.ResponseWriter, r *http.Request) {
+	fmt.Println("method:", r.Method) //获取请求的方法
+	if r.Method == "GET" { //前端页面渲染
+		crutime := time.Now().Unix()
+		h := md5.New()
+		io.WriteString(h, strconv.FormatInt(crutime, 10))
+		token := fmt.Sprintf("%x", h.Sum(nil))
+
+		t, _ := template.ParseFiles("Web/upload.gtpl")
+		t.Execute(w, token)
+	} else { //后端POST接收逻辑
+		r.ParseMultipartForm(32 << 20)
+		file, handler, err := r.FormFile("file")
+		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)  // 此处假设当前目录下已存在test目录
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+		defer f.Close()
+		io.Copy(f, file)
+	}
+}