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	完成基本上传功能
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										201
									
								
								Web/upload.gtpl
									
									
									
									
									
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								Web/upload.gtpl
									
									
									
									
									
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<!DOCTYPE html>
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<html lang="en">
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<head>
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  <meta charset="UTF-8">
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  <meta name="viewport" content="width=device-width, initial-scale=1.0">
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  <title>文件上传</title>
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  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css">
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  <style>
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    body {
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      font-family: 'Arial', sans-serif;
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      background-color: #f5f5f5;
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      margin: 0;
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      padding: 0;
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      display: flex;
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      flex-direction: column;
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      align-items: center;
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      justify-content: center;
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      height: 100vh;
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    }
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    header {
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      background-color: #333;
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      color: #fff;
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      padding: 15px;
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      text-align: center;
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      width: 100%;
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      position: fixed;
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      top: 0;
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      left: 0;
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    }
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    #upload-container {
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      width: 100%;
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      max-width: 400px;
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      background-color: #fff;
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      padding: 20px;
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      border-radius: 8px;
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      box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
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      margin-top: 80px; /* 顶栏高度 + 20px 的间距 */
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      text-align: center;
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    }
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    #upload-form {
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      display: flex;
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      flex-direction: column;
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      align-items: center;
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    }
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    #file-input {
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      display: none;
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    }
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    #custom-file-input {
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      background-color: #4caf50;
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      color: #fff;
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      border: none;
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      padding: 10px;
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      border-radius: 4px;
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      cursor: pointer;
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      transition: background-color 0.3s;
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      display: inline-block;
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      font-size: 16px;
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      margin-bottom: 10px;
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    }
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    #custom-file-input:hover {
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      background-color: #45a049;
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    }
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    #upload-button {
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      background-color: #4caf50;
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      color: #fff;
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      border: none;
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      padding: 10px;
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      border-radius: 4px;
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      cursor: pointer;
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      transition: background-color 0.3s;
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      font-size: 16px;
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    }
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    #upload-button:hover {
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      background-color: #45a049;
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    }
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    #progress-container {
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      width: 100%;
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      margin-top: 20px;
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      display: none;
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    }
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    #progress-bar {
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      width: 0;
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      height: 20px;
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      background-color: #4caf50;
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      border-radius: 4px;
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    }
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    #thumbnail-container {
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      margin-top: 20px;
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      max-width: 100%;
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      height: auto;
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      display: none; /* 默认隐藏 */
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    }
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    #thumbnail {
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      max-width: 100%;
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      height: auto;
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    }
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  </style>
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</head>
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<body>
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  <header>
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    <h2>Pixel</h2>
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    <!-- 添加帮助和用户信息的按钮/链接等 -->
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  </header>
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  <div id="upload-container">
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    <form id="upload-form">
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      <label id="custom-file-input" for="file-input"><i class="fas fa-upload"></i>选择文件</label>
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      <input type="file" id="file-input" accept="image/*" onchange="displayThumbnail()">
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      <button id="upload-button" type="button" onclick="uploadFile()">上传文件</button>
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    </form>
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    <div id="progress-container">
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      <div id="progress-bar"></div>
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    </div>
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    <div id="thumbnail-container">
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      <img id="thumbnail" alt="缩略图">
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    </div>
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  </div>
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  <script>
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    function uploadFile() {
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      const fileInput = document.getElementById('file-input');
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      const progressBar = document.getElementById('progress-bar');
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      const progressContainer = document.getElementById('progress-container');
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      const file = fileInput.files[0];
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      if (!file) {
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        alert('请选择文件');
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        return;
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      }
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      const formData = new FormData();
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      formData.append('file', file);
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      const xhr = new XMLHttpRequest();
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      xhr.upload.onprogress = function (event) {
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        if (event.lengthComputable) {
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          const percentComplete = (event.loaded / event.total) * 100;
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          progressBar.style.width = percentComplete + '%';
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        }
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      };
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      xhr.onreadystatechange = function () {
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        if (xhr.readyState === XMLHttpRequest.DONE) {
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          if (xhr.status === 200) {
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            alert('文件上传成功!');
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          } else {
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            alert('文件上传失败!');
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          }
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          // 重置进度条
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          progressBar.style.width = '0%';
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          // 隐藏进度条
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          progressContainer.style.display = 'none';
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        }
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      };
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      // 显示进度条
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      progressContainer.style.display = 'block';
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      // 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
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      xhr.open('POST', '/upload', true);
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      xhr.send(formData);
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    }
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    function displayThumbnail() {
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      const fileInput = document.getElementById('file-input');
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      const thumbnail = document.getElementById('thumbnail');
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      const thumbnailContainer = document.getElementById('thumbnail-container');
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      const file = fileInput.files[0];
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      if (file && file.type.startsWith('image/')) {
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        const reader = new FileReader();
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        reader.onload = function (e) {
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          thumbnail.src = e.target.result;
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          thumbnailContainer.style.display = 'block';
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        };
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        reader.readAsDataURL(file);
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      } else {
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        thumbnailContainer.style.display = 'none';
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      }
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    }
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  </script>
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</body>
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</html>
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										5
									
								
								go.mod
									
									
									
									
									
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										5
									
								
								go.mod
									
									
									
									
									
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module Pixel
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go 1.21.3
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require github.com/mattn/go-sqlite3 v1.14.19 // indirect
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										2
									
								
								go.sum
									
									
									
									
									
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								go.sum
									
									
									
									
									
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github.com/mattn/go-sqlite3 v1.14.19 h1:fhGleo2h1p8tVChob4I9HpmVFIAkKGpiukdrgQbWfGI=
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github.com/mattn/go-sqlite3 v1.14.19/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
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										54
									
								
								main.go
									
									
									
									
									
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								main.go
									
									
									
									
									
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package main
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import (
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	"crypto/md5"
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	"fmt"
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	"html/template"
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	"io"
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	"log"
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	"net/http"
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	"os"
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	"strconv"
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	"time"
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)
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func main() {
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	http.HandleFunc("/upload", upload)        //设置访问的路由
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	err := http.ListenAndServe(":9090", nil) //设置监听的端口
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	if err != nil {
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		log.Fatal("ListenAndServe: ", err)
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	}
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}
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// 处理/upload 逻辑
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func upload(w http.ResponseWriter, r *http.Request) {
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	fmt.Println("method:", r.Method) //获取请求的方法
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	if r.Method == "GET" { //前端页面渲染
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		crutime := time.Now().Unix()
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		h := md5.New()
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		io.WriteString(h, strconv.FormatInt(crutime, 10))
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		token := fmt.Sprintf("%x", h.Sum(nil))
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		t, _ := template.ParseFiles("Web/upload.gtpl")
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		t.Execute(w, token)
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	} else { //后端POST接收逻辑
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		r.ParseMultipartForm(32 << 20)
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		file, handler, err := r.FormFile("file")
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		if err != nil {
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			fmt.Println(err)
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			return
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		}
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		defer file.Close()
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		fmt.Fprintf(w, "%v", handler.Header)
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		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
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		if err != nil {
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			fmt.Println(err)
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			return
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		}
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		defer f.Close()
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		io.Copy(f, file)
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	}
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}
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