使用itextsharp将阿拉伯语“unicode”内容html或xml转换为pdf

Question

我正在尝试在我的asp.net MVC3应用程序中进行大量搜索后创建报告我发现很多博客文章都在谈论ITextSharp将Html/Razor转换为Pdf我正在尝试解析剃刀视图以获得PDf如下

 public void Render(ViewContext viewContext, TextWriter writer)
    {
        var doc = new Document();

        // associate output with response stream
        var pdfWriter = PdfWriter.GetInstance(doc, viewContext.HttpContext.Response.OutputStream);
        pdfWriter.CloseStream = false;

        viewContext.HttpContext.Response.ContentType = "application/pdf";
        viewContext.HttpContext.Response.ContentEncoding = System.Text.Encoding.UTF8;

        // generate view into string
        var sb = new System.Text.StringBuilder();
        TextWriter tw = new System.IO.StringWriter(sb);
        _result.View.Render(viewContext, tw);
        var resultCache = sb.ToString();

        //Path to our font
        string arialuniTff = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Fonts), "ARIALUNI.TTF");
        //Register the font with iTextSharp
        iTextSharp.text.FontFactory.Register(arialuniTff);

        //Create a new stylesheet
        iTextSharp.text.html.simpleparser.StyleSheet ST = new iTextSharp.text.html.simpleparser.StyleSheet();
        //Set the default body font to our registered font's internal name
        ST.LoadTagStyle(HtmlTags.BODY, HtmlTags.FACE, "Arial Unicode MS");
        //Set the default encoding to support Unicode characters
        ST.LoadTagStyle(HtmlTags.BODY, HtmlTags.ENCODING, BaseFont.IDENTITY_H);


        //Parse our HTML using the stylesheet created above
        List<IElement> list = HTMLWorker.ParseToList(new StringReader(resultCache), ST);
        doc.Open();
        //Loop through each element, don't bother wrapping in P tags
        foreach (var element in list)
        {
            doc.Add(element);
        }

        doc.Close();
        pdfWriter.Close();
    }

该代码的结果是

这是不正确的，阿拉伯语单词应该是“محمد”。所以我需要的是将文档方向设置为从右到左

修改 感谢@Romulus

我对他的代码进行了一些更改我刚刚将{element>添加元素替换为循环我的Html并设置了一些属性

PdfPCell

现在这对我有用了谢谢：）

Answer 1

您需要使用支持RunDirection的容器元素，例如ColumnText或PdfPCell，然后设置它们的元素.RunDirection = PdfWriter.RUN_DIRECTION_RTL

List<IElement> list = HTMLWorker.ParseToList(new StringReader(resultCache), ST);
doc.Open();

//Use a table so that we can set the text direction
PdfPTable table = new PdfPTable(1);
//Ensure that wrapping is on, otherwise Right to Left text will not display
table.DefaultCell.NoWrap = false;
table.RunDirection = PdfWriter.RUN_DIRECTION_RTL;

//Loop through each element, don't bother wrapping in P tags
foreach (var element in list)
{
    //Create a cell and add text to it
    PdfPCell text = new PdfPCell(new Phrase(element, font));

    //Ensure that wrapping is on, otherwise Right to Left text will not display
    text.NoWrap = false;

    //Add the cell to the table
    table.AddCell(text);
}
//Add the table to the document
document.Add(table);
doc.Close();
pdfWriter.Close();

有关其他参考，请查看此sample。