file-parse
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N1KO
parent
9738a23451
commit
a77dfbe4c2
@ -1,9 +1,9 @@
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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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<link rel="icon" type="image/png" href="NIKO.png">
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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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<link rel="icon" type="image/png" href="NIKO.png"/>
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<title>BAOGUTANG-FILE</title>
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<style>
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body {
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@ -84,11 +84,38 @@
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margin: 30px 0;
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border-top: 1px solid #ddd;
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}
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/* 类型选项按钮组样式 */
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.type-options {
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display: flex;
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gap: 10px;
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margin-bottom: 10px;
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}
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.type-option {
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flex: 0 0 auto;
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padding: 10px;
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border: 1px solid #ddd;
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border-radius: 3px;
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cursor: pointer;
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background-color: #f7f7f7;
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font-size: 14px;
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color: #333;
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text-align: center;
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user-select: none;
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}
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.type-option:hover {
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background-color: #eee;
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}
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.type-option.active {
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background-color: rgb(98, 210, 161);
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color: #fff;
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border-color: rgb(98, 210, 161);
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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>FILE-BAOGUTANG</h1>
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<h1>BAOGUTANG-FILE</h1>
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<!-- 文件转 Base64 -->
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<div class="section">
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@ -107,12 +134,51 @@
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<h3>Base64 转文件</h3>
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<label for="base64Input">粘贴 Base64 字符串</label>
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<textarea id="base64Input" placeholder="粘贴 Base64 字符串"></textarea>
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<div class="type-options" id="typeOptions">
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<div class="type-option" data-type="auto">自动识别</div>
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<div class="type-option" data-type="image/png">图片(PNG)</div>
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<div class="type-option" data-type="image/jpeg">图片(JPEG)</div>
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<div class="type-option" data-type="video/mp4">视频(MP4)</div>
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<div class="type-option" data-type="application/pdf">PDF文件</div>
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<div class="type-option" data-type="text/plain">文本文件</div>
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<div class="type-option" data-type="application/octet-stream">通用文件</div>
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</div>
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<button onclick="convertToFile()">转换为文件并预览</button>
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<div class="preview" id="previewArea"></div>
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</div>
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</div>
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<script>
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let selectedType = 'auto';
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// 页面加载时默认选中“自动识别”
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window.addEventListener('DOMContentLoaded', () => {
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resetTypeSelection();
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});
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function resetTypeSelection() {
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const typeOptions = document.querySelectorAll('.type-option');
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typeOptions.forEach(option => {
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option.classList.remove('active');
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if(option.dataset.type === 'auto') {
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option.classList.add('active');
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selectedType = 'auto';
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}
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});
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}
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// 点击类型选项按钮，更新选中状态
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document.getElementById('typeOptions').addEventListener('click', (e) => {
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if (e.target.classList.contains('type-option')) {
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const typeOptions = document.querySelectorAll('.type-option');
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typeOptions.forEach(option => option.classList.remove('active'));
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e.target.classList.add('active');
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selectedType = e.target.dataset.type;
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}
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});
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// 将文件转换为 Base64
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function convertToBase64() {
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const fileInput = document.getElementById('fileInput');
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@ -139,21 +205,41 @@
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// 将 Base64 转换为文件并预览
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function convertToFile() {
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const base64Input = document.getElementById('base64Input').value;
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const base64Input = document.getElementById('base64Input');
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const previewArea = document.getElementById('previewArea');
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if (!base64Input.trim()) {
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let inputValue = base64Input.value.trim();
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if (!inputValue) {
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alert('请提供有效的 Base64 字符串！');
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// 清空后恢复自动识别
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resetTypeSelection();
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return;
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}
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// 清空预览区域
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previewArea.innerHTML = '';
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// 创建文件链接
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const [header, base64String] = base64Input.split(',');
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const mimeType = header.match(/data:(.*);base64/)?.[1] || 'application/octet-stream';
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const binary = atob(base64String || base64Input); // 解码 Base64
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let finalBase64 = inputValue;
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let mimeType = '';
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// 根据选中类型进行处理
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if (selectedType === 'auto') {
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let headerMatch = finalBase64.match(/^data:(.*);base64,/);
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if (headerMatch) {
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mimeType = headerMatch[1];
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finalBase64 = finalBase64.substring(finalBase64.indexOf(',')+1);
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} else {
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// 未选择类型且无头信息则默认使用application/octet-stream
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mimeType = 'application/octet-stream';
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}
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} else {
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// 用户选择了特定类型
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finalBase64 = finalBase64.replace(/^data:.*;base64,/, '');
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mimeType = selectedType;
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}
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const binary = atob(finalBase64); // 解码 Base64
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const arrayBuffer = new Uint8Array(binary.length);
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for (let i = 0; i < binary.length; i++) {
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@ -188,6 +274,11 @@
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previewArea.appendChild(textArea);
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};
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reader.readAsText(blob);
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} else if (mimeType.startsWith('video/')) {
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const video = document.createElement('video');
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video.controls = true;
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video.src = fileUrl;
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previewArea.appendChild(video);
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}
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}
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</script>
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