使用C++的JavaScript设置强加密类型

在 Microsoft Excel 中应用加密

在 Microsoft Excel (例如 2007) 中实现文件加密:

  1. 从** 工具** 菜单中选择 **选项**。
  2. 选择安全选项卡。
  3. 打开密码字段输入一个值。
  4. 点击“高级”。
  5. 选择加密类型并确认密码。

使用 Aspose.Cells 应用加密

下面的代码示例对文件应用强加密并设置密码。

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example - Encrypt Workbook</title>
    </head>
    <body>
        <h1>Encrypt Workbook Example</h1>
        <input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
        <button id="runExample">Run Example</button>
        <a id="downloadLink" style="display: none;">Download Result</a>
        <div id="result"></div>
    </body>

    <script src="aspose.cells.js.min.js"></script>
    <script type="text/javascript">
        const { Workbook, SaveFormat, Utils } = AsposeCells;

        AsposeCells.onReady({
            license: "/lic/aspose.cells.enc",
            fontPath: "/fonts/",
            fontList: [
                "arial.ttf",
                "NotoSansSC-Regular.ttf"
            ]
        }).then(() => {
            console.log("Aspose.Cells initialized");
        });

        document.getElementById('runExample').addEventListener('click', async () => {
            const fileInput = document.getElementById('fileInput');
            if (!fileInput.files.length) {
                document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
                return;
            }

            const file = fileInput.files[0];
            const arrayBuffer = await file.arrayBuffer();
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            workbook.encryptionOptions = [AsposeCells.EncryptionType.StrongCryptographicProvider, 128];
            workbook.settings.password = "1234";

            const outputData = workbook.save(SaveFormat.Excel97To2003);
            const blob = new Blob([outputData]);
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'encryptedBook1.out.xls';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Encrypted Excel File';

            document.getElementById('result').innerHTML = '<p style="color: green;">File encrypted successfully! Click the download link to get the encrypted file.</p>';
        });
    </script>
</html>