From 9738a23451ced887022183baa76f387510fc46ac Mon Sep 17 00:00:00 2001
From: N1KO <tangjiyang@yinshantech.cn>
Date: Fri, 22 Nov 2024 13:37:15 +0800
Subject: [PATCH] add file parse

---
 .../admin/controller/StaticController.java    |   6 +
 .../resources/templates/file-baogutang.html   | 195 ++++++++++++++++++
 2 files changed, 201 insertions(+)
 create mode 100644 baogutang-admin/src/main/resources/templates/file-baogutang.html
diff --git a/baogutang-admin/src/main/java/top/baogutang/admin/controller/StaticController.java b/baogutang-admin/src/main/java/top/baogutang/admin/controller/StaticController.java
index 1167ab3..ec2bf99 100644
--- a/baogutang-admin/src/main/java/top/baogutang/admin/controller/StaticController.java
+++ b/baogutang-admin/src/main/java/top/baogutang/admin/controller/StaticController.java
@@ -23,4 +23,10 @@ public class StaticController {
         // 这里返回的字符串是HTML文件名（不包括扩展名）
         return "coin";
     }
+
+    @RequestMapping("/file-parse")
+    public String viewFileParseHtml() {
+        // 这里返回的字符串是HTML文件名（不包括扩展名）
+        return "file-baogutang";
+    }
 }
diff --git a/baogutang-admin/src/main/resources/templates/file-baogutang.html b/baogutang-admin/src/main/resources/templates/file-baogutang.html
new file mode 100644
index 0000000..d4b3e58
--- /dev/null
+++ b/baogutang-admin/src/main/resources/templates/file-baogutang.html
@@ -0,0 +1,195 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="icon" type="image/png" href="NIKO.png">
+    <title>BAOGUTANG-FILE</title>
+    <style>
+        body {
+            font-family: "Microsoft YaHei", Arial, sans-serif;
+            background-color: #f7f8fa;
+            margin: 0;
+            padding: 0;
+        }
+        .container {
+            max-width: 1200px;
+            margin: 20px auto;
+            padding: 20px;
+            background: #fff;
+            border: 1px solid #ddd;
+            border-radius: 5px;
+            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+        }
+        h1 {
+            text-align: center;
+            color: rgb(98, 210, 161);
+            margin-bottom: 20px;
+        }
+        h3 {
+            color: #444;
+            margin-bottom: 10px;
+        }
+        .section {
+            margin-bottom: 30px;
+        }
+        label {
+            font-weight: bold;
+            margin-bottom: 5px;
+            display: block;
+        }
+        input[type="file"], textarea, button {
+            width: 100%;
+            margin-bottom: 10px;
+            padding: 10px;
+            border: 1px solid #ddd;
+            border-radius: 3px;
+            font-size: 14px;
+        }
+        button {
+            background-color: rgb(98, 210, 161);
+            color: white;
+            cursor: pointer;
+            border: none;
+        }
+        button:hover {
+            background-color: rgba(98, 210, 161, 0.8);
+        }
+        textarea {
+            height: 150px;
+            resize: none;
+        }
+        .preview {
+            margin-top: 10px;
+        }
+        img, iframe {
+            max-width: 100%;
+            border: 1px solid #ddd;
+            border-radius: 3px;
+        }
+        iframe {
+            height: 80vh; /* PDF 预览高度设置为屏幕高度的 80% */
+        }
+        .download-link {
+            display: block;
+            margin-top: 10px;
+            color: rgb(98, 210, 161);
+            text-decoration: none;
+            font-weight: bold;
+        }
+        .download-link:hover {
+            text-decoration: underline;
+        }
+        .divider {
+            margin: 30px 0;
+            border-top: 1px solid #ddd;
+        }
+    </style>
+</head>
+<body>
+<div class="container">
+    <h1>FILE-BAOGUTANG</h1>
+
+    <!-- 文件转 Base64 -->
+    <div class="section">
+        <h3>文件转 Base64</h3>
+        <label for="fileInput">选择文件</label>
+        <input type="file" id="fileInput" />
+        <button onclick="convertToBase64()">转换为 Base64</button>
+        <label for="base64Output">Base64 输出</label>
+        <textarea id="base64Output" readonly placeholder="Base64 输出"></textarea>
+    </div>
+
+    <div class="divider"></div>
+
+    <!-- Base64 转文件 -->
+    <div class="section">
+        <h3>Base64 转文件</h3>
+        <label for="base64Input">粘贴 Base64 字符串</label>
+        <textarea id="base64Input" placeholder="粘贴 Base64 字符串"></textarea>
+        <button onclick="convertToFile()">转换为文件并预览</button>
+        <div class="preview" id="previewArea"></div>
+    </div>
+</div>
+
+<script>
+    // 将文件转换为 Base64
+    function convertToBase64() {
+        const fileInput = document.getElementById('fileInput');
+        const base64Output = document.getElementById('base64Output');
+
+        if (!fileInput.files || fileInput.files.length === 0) {
+            alert('请选择一个文件！');
+            return;
+        }
+
+        const file = fileInput.files[0];
+        const reader = new FileReader();
+
+        reader.onload = function (e) {
+            base64Output.value = e.target.result;
+        };
+
+        reader.onerror = function () {
+            alert('文件读取失败！');
+        };
+
+        reader.readAsDataURL(file); // 将文件读取为 Base64
+    }
+
+    // 将 Base64 转换为文件并预览
+    function convertToFile() {
+        const base64Input = document.getElementById('base64Input').value;
+        const previewArea = document.getElementById('previewArea');
+
+        if (!base64Input.trim()) {
+            alert('请提供有效的 Base64 字符串！');
+            return;
+        }
+
+        // 清空预览区域
+        previewArea.innerHTML = '';
+
+        // 创建文件链接
+        const [header, base64String] = base64Input.split(',');
+        const mimeType = header.match(/data:(.*);base64/)?.[1] || 'application/octet-stream';
+        const binary = atob(base64String || base64Input); // 解码 Base64
+        const arrayBuffer = new Uint8Array(binary.length);
+
+        for (let i = 0; i < binary.length; i++) {
+            arrayBuffer[i] = binary.charCodeAt(i);
+        }
+
+        const blob = new Blob([arrayBuffer], { type: mimeType });
+        const fileUrl = URL.createObjectURL(blob);
+
+        // 下载链接
+        const downloadLink = document.createElement('a');
+        downloadLink.href = fileUrl;
+        downloadLink.download = 'converted_file';
+        downloadLink.textContent = '点击下载文件';
+        downloadLink.className = 'download-link';
+        previewArea.appendChild(downloadLink);
+
+        // 根据文件类型生成预览
+        if (mimeType.startsWith('image/')) {
+            const img = document.createElement('img');
+            img.src = fileUrl;
+            previewArea.appendChild(img);
+        } else if (mimeType === 'application/pdf') {
+            const iframe = document.createElement('iframe');
+            iframe.src = fileUrl;
+            previewArea.appendChild(iframe);
+        } else if (mimeType.startsWith('text/')) {
+            const reader = new FileReader();
+            reader.onload = function (e) {
+                const textArea = document.createElement('textarea');
+                textArea.value = e.target.result;
+                previewArea.appendChild(textArea);
+            };
+            reader.readAsText(blob);
+        }
+    }
+</script>
+</body>
+</html>
