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完成基本上传功能

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Kakune55
2023-12-18 16:46:33 +08:00
parent dc2c4ec282
commit 46a546c631
4 changed files with 262 additions and 0 deletions
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Web/upload.gtpl Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>文件上传</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css">
<style>
body {
font-family: 'Arial', sans-serif;
background-color: #f5f5f5;
margin: 0;
padding: 0;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
}
header {
background-color: #333;
color: #fff;
padding: 15px;
text-align: center;
width: 100%;
position: fixed;
top: 0;
left: 0;
}
#upload-container {
width: 100%;
max-width: 400px;
background-color: #fff;
padding: 20px;
border-radius: 8px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
margin-top: 80px; /* 顶栏高度 + 20px 的间距 */
text-align: center;
}
#upload-form {
display: flex;
flex-direction: column;
align-items: center;
}
#file-input {
display: none;
}
#custom-file-input {
background-color: #4caf50;
color: #fff;
border: none;
padding: 10px;
border-radius: 4px;
cursor: pointer;
transition: background-color 0.3s;
display: inline-block;
font-size: 16px;
margin-bottom: 10px;
}
#custom-file-input:hover {
background-color: #45a049;
}
#upload-button {
background-color: #4caf50;
color: #fff;
border: none;
padding: 10px;
border-radius: 4px;
cursor: pointer;
transition: background-color 0.3s;
font-size: 16px;
}
#upload-button:hover {
background-color: #45a049;
}
#progress-container {
width: 100%;
margin-top: 20px;
display: none;
}
#progress-bar {
width: 0;
height: 20px;
background-color: #4caf50;
border-radius: 4px;
}
#thumbnail-container {
margin-top: 20px;
max-width: 100%;
height: auto;
display: none; /* 默认隐藏 */
}
#thumbnail {
max-width: 100%;
height: auto;
}
</style>
</head>
<body>
<header>
<h2>Pixel</h2>
<!-- 添加帮助和用户信息的按钮/链接等 -->
</header>
<div id="upload-container">
<form id="upload-form">
<label id="custom-file-input" for="file-input"><i class="fas fa-upload"></i>选择文件</label>
<input type="file" id="file-input" accept="image/*" onchange="displayThumbnail()">
<button id="upload-button" type="button" onclick="uploadFile()">上传文件</button>
</form>
<div id="progress-container">
<div id="progress-bar"></div>
</div>
<div id="thumbnail-container">
<img id="thumbnail" alt="缩略图">
</div>
</div>
<script>
function uploadFile() {
const fileInput = document.getElementById('file-input');
const progressBar = document.getElementById('progress-bar');
const progressContainer = document.getElementById('progress-container');
const file = fileInput.files[0];
if (!file) {
alert('请选择文件');
return;
}
const formData = new FormData();
formData.append('file', file);
const xhr = new XMLHttpRequest();
xhr.upload.onprogress = function (event) {
if (event.lengthComputable) {
const percentComplete = (event.loaded / event.total) * 100;
progressBar.style.width = percentComplete + '%';
}
};
xhr.onreadystatechange = function () {
if (xhr.readyState === XMLHttpRequest.DONE) {
if (xhr.status === 200) {
alert('文件上传成功！');
} else {
alert('文件上传失败！');
}
// 重置进度条
progressBar.style.width = '0%';
// 隐藏进度条
progressContainer.style.display = 'none';
}
};
// 显示进度条
progressContainer.style.display = 'block';
// 模拟后端接口，你需要将以下URL替换为实际的后端上传接口
xhr.open('POST', '/upload', true);
xhr.send(formData);
}
function displayThumbnail() {
const fileInput = document.getElementById('file-input');
const thumbnail = document.getElementById('thumbnail');
const thumbnailContainer = document.getElementById('thumbnail-container');
const file = fileInput.files[0];
if (file && file.type.startsWith('image/')) {
const reader = new FileReader();
reader.onload = function (e) {
thumbnail.src = e.target.result;
thumbnailContainer.style.display = 'block';
};
reader.readAsDataURL(file);
} else {
thumbnailContainer.style.display = 'none';
}
}
</script>
</body>
</html>

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go.mod Normal file
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module Pixel
go 1.21.3
require github.com/mattn/go-sqlite3 v1.14.19 // indirect

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go.sum Normal file
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github.com/mattn/go-sqlite3 v1.14.19 h1:fhGleo2h1p8tVChob4I9HpmVFIAkKGpiukdrgQbWfGI=
github.com/mattn/go-sqlite3 v1.14.19/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=

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main.go Normal file
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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)
}
}