使用JavaScript通过C++在渲染Excel到PDF时忽略错误
Contents
[
Hide
]
可能的使用场景
有时候在将Excel文件转换为PDF时会出现错误或异常，导致转换过程终止。您可以使用PdfSaveOptions.ignoreError属性在转换过程中忽略所有此类错误。这样，转换过程将顺利完成，不会抛出任何错误或异常，但可能会丢失部分数据。因此，仅在数据丢失对您不重要的情况下使用此属性。
在将Excel渲染为PDF时忽略错误
以下代码加载了示例Excel文件，但该示例Excel文件在转换为PDF时出现错误，发生在17.11版本中，但由于使用PdfSaveOptions.ignoreError属性，不会抛出错误。不过截图中显示的一个圆角红箭头形状会丢失。
示例代码
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Excel to PDF (Ignore Errors) Example</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Convert to PDF (Ignore Errors)</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, PdfSaveOptions, 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 from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Specify Pdf Save Options - Ignore Error
const opts = new PdfSaveOptions();
opts.ignoreError = true;
// Save the Workbook in Pdf with Pdf Save Options
const outputData = workbook.save(SaveFormat.Pdf, opts);
const blob = new Blob([outputData], { type: 'application/pdf' });
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputErrorExcel2Pdf.pdf';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download PDF File';
document.getElementById('result').innerHTML = '<p style="color: green;">PDF generated successfully! Click the download link to get the file.</p>';
});
</script>
</html>