372 lines
11 KiB
HTML
372 lines
11 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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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>头像裁剪上传系统 - 完整版</title>
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<link href="https://cdnjs.cloudflare.com/ajax/libs/cropperjs/1.5.12/cropper.min.css" rel="stylesheet">
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<style>
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:root {
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--primary-color: #2196F3;
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--error-color: #f44336;
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}
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body {
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font-family: 'Segoe UI', sans-serif;
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background: #f5f5f5;
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margin: 0;
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padding: 20px;
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}
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.container {
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max-width: 1200px;
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margin: 0 auto;
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background: white;
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padding: 30px;
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border-radius: 12px;
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box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
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}
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.flex-wrapper {
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display: flex;
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gap: 30px;
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margin-top: 20px;
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}
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/* 裁剪区域 */
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.crop-section {
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flex: 2;
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min-width: 500px;
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}
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#image-wrapper {
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width: 100%;
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height: 500px;
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background: #f8f9fa;
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border: 2px dashed #ddd;
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border-radius: 8px;
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overflow: hidden;
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}
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#cropper-image {
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max-width: none !important;
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max-height: none !important;
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}
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/* 控制区域 */
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.controls {
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margin-top: 20px;
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display: grid;
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grid-template-columns: repeat(3, 1fr);
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gap: 10px;
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}
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/* 预览区域 */
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.preview-section {
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flex: 1;
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min-width: 300px;
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}
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.preview-box {
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width: 250px;
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height: 250px;
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border-radius: 50%;
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border: 3px solid var(--primary-color);
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overflow: hidden;
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margin: 0 auto 20px;
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}
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#preview-img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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}
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/* 按钮样式 */
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.btn {
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padding: 12px 20px;
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border: none;
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border-radius: 6px;
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cursor: pointer;
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transition: all 0.3s;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.btn-primary {
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background: var(--primary-color);
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color: white;
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}
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.btn-primary:hover {
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background: #1976D2;
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}
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.btn-zoom {
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background: #4CAF50;
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}
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/* 上传进度 */
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.progress-container {
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height: 8px;
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background: #eee;
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border-radius: 4px;
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margin-top: 20px;
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overflow: hidden;
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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: 100%;
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background: var(--primary-color);
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transition: width 0.3s ease;
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}
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/* 消息提示 */
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.alert {
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padding: 15px;
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border-radius: 6px;
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margin-top: 20px;
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display: none;
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}
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.alert-success {
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background: #dff0d8;
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color: #3c763d;
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}
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.alert-error {
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background: #f2dede;
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color: var(--error-color);
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}
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input[type="file"] {
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display: none;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<h1>专业头像裁剪系统</h1>
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<div class="flex-wrapper">
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<!-- 左侧裁剪区 -->
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<div class="crop-section">
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<div id="image-wrapper">
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<img id="cropper-image"
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src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=">
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</div>
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<!-- 控制按钮 -->
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<div class="controls">
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<label class="btn btn-primary">
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📁 选择图片
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<input type="file" id="fileInput" accept="image/*">
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</label>
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<button class="btn btn-primary" id="uploadBtn">🚀 上传头像</button>
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<button class="btn btn-primary" id="resetBtn">🔄 重置</button>
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<button class="btn btn-zoom" onclick="zoomControl(0.2)">➕ 放大</button>
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<button class="btn btn-zoom" onclick="zoomControl(-0.2)">➖ 缩小</button>
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<button class="btn btn-primary" onclick="rotateImage(-90)">↩️ 左旋</button>
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</div>
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<!-- 上传进度 -->
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<div class="progress-container">
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<div class="progress-bar"></div>
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</div>
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<!-- 消息提示 -->
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<div id="message" class="alert"></div>
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</div>
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<!-- 右侧预览区 -->
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<div class="preview-section">
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<h3>实时预览 (250x250px)</h3>
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<div class="preview-box">
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<img id="preview-img"
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src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=">
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</div>
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<div class="preview-stats">
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<p>当前缩放: <span id="zoomValue">100%</span></p>
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<p>图片尺寸: <span id="imageSize">0 x 0</span></p>
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</div>
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</div>
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</div>
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</div>
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<!-- 依赖库 -->
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<script src="https://cdnjs.cloudflare.com/ajax/libs/cropperjs/1.5.12/cropper.min.js"></script>
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<script>
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let cropper;
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const image = document.getElementById('cropper-image');
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const message = document.getElementById('message');
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let currentScale = 1;
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// 初始化Cropper
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function initCropper(imageSrc) {
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if (cropper) {
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cropper.destroy();
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}
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image.src = imageSrc;
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cropper = new Cropper(image, {
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aspectRatio: 1,
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viewMode: 2,
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autoCropArea: 0.8,
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zoomable: true,
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zoomOnWheel: true,
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zoomOnTouch: true,
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wheelZoomRatio: 0.1,
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minCanvasWidth: 400,
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minCanvasHeight: 400,
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crop: updatePreview,
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ready() {
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updateImageInfo();
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document.querySelector('.progress-container').style.display = 'none';
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}
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});
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}
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// 缩放控制
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function zoomControl(ratio) {
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if (!cropper) return;
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currentScale = Math.min(Math.max(0.5, currentScale + ratio), 3);
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cropper.zoomTo(currentScale);
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updateImageInfo();
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}
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// 旋转控制
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function rotateImage(degrees) {
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if (cropper) {
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cropper.rotateTo(cropper.getData().rotate + degrees);
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updatePreview();
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}
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}
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// 更新预览
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function updatePreview() {
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const canvas = cropper.getCroppedCanvas({
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width: 250,
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height: 250,
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imageSmoothingQuality: 'high'
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});
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if (canvas) {
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canvas.toBlob(blob => {
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const previewUrl = URL.createObjectURL(blob);
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document.getElementById('preview-img').src = previewUrl;
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// 清理旧URL
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setTimeout(() => URL.revokeObjectURL(previewUrl), 1000);
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}, 'image/jpeg', 0.85);
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}
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}
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// 更新图片信息
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function updateImageInfo() {
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if (cropper) {
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const data = cropper.getData();
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document.getElementById('zoomValue').textContent =
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`${Math.round(currentScale * 100)}%`;
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document.getElementById('imageSize').textContent =
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`${Math.round(data.width)} x ${Math.round(data.height)}`;
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}
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}
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// 文件选择事件
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document.getElementById('fileInput').addEventListener('change', function (e) {
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const file = e.target.files[0];
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if (!file) return;
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if (!file.type.startsWith('image/')) {
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showMessage('⚠️ 请选择有效的图片文件', 'error');
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return;
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}
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const reader = new FileReader();
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reader.onload = () => {
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initCropper(reader.result);
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currentScale = 1;
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};
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reader.readAsDataURL(file);
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});
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// 上传功能
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document.getElementById('uploadBtn').addEventListener('click', async () => {
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const progressBar = document.querySelector('.progress-bar');
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const progressContainer = document.querySelector('.progress-container');
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try {
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if (!cropper) {
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showMessage('⚠️ 请先选择并裁剪图片', 'error');
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return;
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}
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progressContainer.style.display = 'block';
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const canvas = cropper.getCroppedCanvas({
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width: 1024,
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height: 1024,
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imageSmoothingQuality: 'high'
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});
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const blob = await new Promise(resolve =>
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canvas.toBlob(resolve, 'image/jpeg', 0.9)
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);
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const formData = new FormData();
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formData.append('file', blob, `avatar_${Date.now()}.jpg`);
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formData.append('meta', JSON.stringify({
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width: canvas.width,
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height: canvas.height,
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scale: currentScale.toFixed(2)
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}));
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const response = await fetch('/api/v1/file/upload', {
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method: 'POST',
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body: formData,
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headers: {
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'X-Requested-With': 'XMLHttpRequest'
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}
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});
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if (!response.ok) throw new Error(`服务器错误: ${response.status}`);
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const result = await response.json();
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showMessage(`✅ 上传成功！路径: ${result.path}`, 'success');
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} catch (error) {
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console.error('上传错误:', error);
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showMessage(`❌ 上传失败: ${error.message}`, 'error');
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} finally {
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progressBar.style.width = '0%';
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progressContainer.style.display = 'none';
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}
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});
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// 消息提示
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function showMessage(text, type = 'success') {
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message.className = `alert alert-${type}`;
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message.textContent = text;
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message.style.display = 'block';
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setTimeout(() => message.style.display = 'none', 5000);
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}
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// 清理资源
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window.addEventListener('beforeunload', () => {
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if (cropper) cropper.destroy();
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document.querySelectorAll('img').forEach(img => {
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if (img.src.startsWith('blob:')) URL.revokeObjectURL(img.src);
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});
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});
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// 初始化默认图片
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initCropper('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=');
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</script>
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</body>
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</html> |