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完成基本上传功能
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Web/upload.gtpl
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201
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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2
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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54
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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