使用 C++ 通过JavaScript检查工作簿是否包含隐藏的外部链接
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可能的使用场景
有时候，工作簿中包含隐藏且在Microsoft Excel中无法查看的外部链接。Aspose.Cells可以检索所有外部链接，无论它们是否可见。然而，您可以使用 ExternalLink.isVisible() 属性来检查外部链接是否可见。
检查工作簿是否包含隐藏的外部链接
以下示例代码加载包含隐藏外部链接的 源Excel文件。这些链接不能在Microsoft Excel中查看，但存在于工作簿中。在打印 ExternalLink.dataSource 和 ExternalLink.isReferred() 属性后，它会输出 ExternalLink.isVisible() 属性。在下面的控制台输出中，您可以看到所有外部链接都不可见。
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example - External Links</title>
</head>
<body>
<h1>External Links 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" style="white-space: pre-wrap; margin-top: 1em;"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, Worksheet, Cell, 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();
// Instantiating a Workbook object by loading the selected file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Access the external link collection of the workbook
const links = workbook.worksheets.externalLinks;
// Print all the external links and check their IsVisible property
let output = '';
for (let i = 0; i < links.count; i++) {
const link = links.get(i);
output += "Data Source: " + link.dataSource + "\n";
output += "Is Referred: " + link.isReferred + "\n";
output += "Is Visible: " + link.isVisible + "\n\n";
console.log("Data Source: " + link.dataSource);
console.log("Is Referred: " + link.isReferred);
console.log("Is Visible: " + link.isVisible);
console.log();
}
document.getElementById('result').textContent = output || 'No external links found.';
});
</script>
</html>
控制台输出
Data Source: C:\International\DDB\FAS 133\Swap Rates\GS_1M_3M_1_2_5_¥$_(B)IRSwaps_0400.xls
Is Referred: True
Is Visible: False
Data Source: C:\DIST DAY\MAY TEMPLATES\030601t.xls
Is Referred: True
Is Visible: False
Data Source: C:\AREVIEW\2002 Controllable\Autobrct.xls
Is Referred: True
Is Visible: False
Data Source: C:\CARDSFO\Main Files\Rate Forecast\FY 11\IFR 11 01 (New Model REPORTS 11.08.07).xls
Is Referred: True
Is Visible: False