feat(upload): 实现文件上传功能

- 添加处理 multipart 表单的 Go 函数 - 创建用于文件上传的 HTML 表单页面 - 支持解析和显示上传文件的元数据- 实现多文件上传处理逻辑 - 添加城市和姓名的文本文件示例- 集成 Bootstrap 样式提升界面美观度
2025-10-25 22:30:30 +08:00
parent 85fa81daef
commit 635cb0dbc0
3 changed files with 84 additions and 0 deletions
--- a/24-httpserver/httpserver/static/city.txt
+++ b/24-httpserver/httpserver/static/city.txt
@@ -0,0 +1,2 @@
+城市：重庆
+姓名：颜佐光
--- a/24-httpserver/httpserver/static/upload.html
+++ b/24-httpserver/httpserver/static/upload.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0"></meta>
+    <title>Pro Go</title>
+    <link href="bootstrap.min.css" rel="stylesheet"/>
+</head>
+<body>
+<div class="m-1 p-2 bg-primary text-white h2 text-center">
+    Upload File
+</div>
+<form method="post" action="/forms/upload" class="p-2" enctype="multipart/form-data">
+    <div class="form-group">
+        <label class="form-label">Name</label>
+        <input type="text" name="name" class="form-control"/>
+    </div>
+    <div class="form-group">
+        <label class="form-label">City</label>
+        <input type="text" name="city" class="form-control"/>
+    </div>
+    <div class="form-group">
+        <label class="form-label">File</label>
+        <input type="file" name="files" class="form-control" multiple/>
+    </div>
+    <div class="form-group">
+        <button type="submit" class="btn btn-primary mt-2">Upload</button>
+    </div>
+</form>
+</body>
+</html>
--- a/24-httpserver/httpserver/upload.go
+++ b/24-httpserver/httpserver/upload.go
@@ -0,0 +1,51 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+)
+
+func HandleMultipartForm(writer http.ResponseWriter, request *http.Request) {
+	fmt.Fprintf(writer, "Name: %v , City : %v \n", request.FormValue("name"), request.FormValue("city"))
+	fmt.Fprintln(writer, "--------")
+
+	file, header, err := request.FormFile("files")
+	if err != nil {
+		http.Error(writer, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer file.Close()
+	fmt.Fprintf(writer, "File Name: %v, File Size: %v \n", header.Filename, header.Size)
+	for k, v := range header.Header {
+		fmt.Fprintf(writer, "Key: %v , Value: %v \n", k, v)
+	}
+	fmt.Fprintln(writer, "--------")
+	io.Copy(writer, file)
+}
+
+func HandleMultipartForm2(writer http.ResponseWriter, request *http.Request) {
+	request.ParseMultipartForm(10 * 1024 * 1024)
+	fmt.Fprintf(writer, "Name: %v , City : %v \n", request.FormValue("name"), request.FormValue("city"))
+	fmt.Fprintln(writer, "--------\n")
+
+	for _, header := range request.MultipartForm.File["files"] {
+		fmt.Fprintf(writer, "\n\n--------\nFile Name: %v, File Size: %v \n", header.Filename, header.Size)
+		file, err := header.Open()
+		if err != nil {
+			http.Error(writer, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer file.Close()
+		for k, v := range header.Header {
+			fmt.Fprintf(writer, "Key: %v , Value: %v \n", k, v)
+		}
+		fmt.Fprintln(writer, "--------")
+		io.Copy(writer, file)
+	}
+
+}
+
+func init() {
+	http.HandleFunc("/forms/upload", HandleMultipartForm2)
+}