我已成功完成創建 xml 的“查找和替換”。現在我想將新創建的 xml 檔案轉換為 pdf 檔案，該檔案將作為檔案附加并通過郵件發送。
Base64String 的結果在 base64 pdf 檔案轉換器上進行了測驗，但無法打開 pdf。收到此錯誤：出現問題無法打開檔案
我怎樣才能做到這一點？
public async Task<string> CreateDocument(string PolicyNumber)
{
var policy = await _context.Policy.SingleOrDefaultAsync(p => p.PolicyNumber == PolicyNumber);
ArgumentNullException.ThrowIfNull(policy, "Policy Not Available");
//CreatePolicyDocument
//create policy document
var files = @"C:\Users\PATHTODOCUMENT\holderTest.docx";
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(files, true))
{
string docText;
using (StreamReader sr = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
{
docText = sr.ReadToEnd();
}
Regex regexText = new Regex("XCONCLUSION_DATEX");
var newWordText = regexText.Replace(docText, "Hi Everyone!");
using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
{
sw.Write(newWordText);
Encoding encoding = Encoding.UTF8;
byte[] docAsBytes = encoding.GetBytes(newWordText);
File.WriteAllBytes("hello.pdf", docAsBytes);
var file = Convert.ToBase64String(docAsBytes);
}
}
//send message
//
return "";
}
uj5u.com熱心網友回復：
PDF檔案有自己的結構，所以不能直接生成帶有xml檔案內容字串的pdf檔案。
如果您真的想將 xml 內容字串轉換為 PDF，您可以嘗試 iTextSharp。
我嘗試了一個簡單的演示，這是代碼：
[HttpPost]
public IActionResult XMLtoPDF([FromForm] Try T1)
{
var streamContent = new StreamContent(T1.file.OpenReadStream());
var filestring = streamContent.ReadAsStringAsync().Result;
MemoryStream outputStream = new MemoryStream();
Document doc = new Document();
PdfWriter writer = PdfWriter.GetInstance(doc, outputStream);
//PDF settings
PdfDestination pdfDest = new PdfDestination(PdfDestination.XYZ, 0, doc.PageSize.Height, 1f);
doc.Open();
var paragraph = new Paragraph(filestring);
doc.Add(paragraph);
doc.Close();
outputStream.Close();
var pdfArray = outputStream.ToArray();
return File(pdfArray, "application/pdf");
}
結果：
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