由itextpdf生成的下载pdf中的编码

Question

我有一个使用 java 8 + maven 和 eclipse neon 和 angular 2+ 的 web 应用程序。应用服务器是 ibm 是 9.

为了制作 pdf，我使用 itextpdf 但由于某种原因，重音被替换为：

Prénom => Prénom

国民 => 国民

这里是 Angular 部分

generatePDF(obj, options) {
    return this.http.get('/pdf', options)
      .map((response: Response) => {
        const pdfBlob = response.blob();
        const blob = new Blob(['\ufeff', pdfBlob], {
          type: 'application/pdf'
        });
        const pdfName = this.pdfName.transform(obj);
        FileSaver.saveAs(blob, pdfName);
      });
  }

如何通过rest发送pdf

@GET
@Path("/pdf")
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response pdf(@QueryParam("id") String id) {
    ByteArrayOutputStream bos;
    try {
        bos = pdfBr.generatePdf(id);
        final ByteArrayInputStream responseStream = new ByteArrayInputStream(bos.toByteArray());
        try {
            bos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        StreamingOutput output = new StreamingOutput() {

            @Override
            public void write(java.io.OutputStream out) throws IOException,
                    WebApplicationException {
                int length;
                byte[] buffer = new byte[1024];
                while((length = responseStream.read(buffer)) != -1) {
                    out.write(buffer, 0, length);
                }
                out.flush();
                responseStream.close();
            }
        };

        return Response.ok(output).header(
                "Content-Disposition", "attachment;filename=\"" + "pdf_" + id + ".pdf" + "\"").build();
    } catch (MalformedURLException e1) {
        e1.printStackTrace();
    } catch (DocumentException e1) {
        e1.printStackTrace();
    } catch (IOException e1) {
        e1.printStackTrace();
    }
    return Response.ok().build();

pdf是如何创建的

@Override
public ByteArrayOutputStream generatePdf(String id)
        throws DocumentException, MalformedURLException, IOException {
    Obj obj = objDao.getObj(id);

    Document document = new Document();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PdfWriter pdfWriter = PdfWriter.getInstance(document, baos);
    document.open();

    PdfPTable info = new PdfPTable(new float[] { 100 });

    info.getDefaultCell().setBorder(com.itextpdf.text.Rectangle.NO_BORDER);
    info.setWidthPercentage(100);
    final Image logo = Image.getInstance(getClass().getClassLoader().getResource("/bar.png"));

    logo.scalePercent(0.75f);
    PdfPCell logoCell = new PdfPCell(logo, true);
    logoCell.setBorderWidth(0f);
    logoCell.setBorder(com.itextpdf.text.Rectangle.NO_BORDER);
    info.addCell(logoCell);

    document.add(info);

    document.add(new Phrase("\n", FontFactory.getFont(FontFactory.HELVETICA, 4, Font.BOLD)));

    PdfPTable objInfo = new PdfPTable(new float[] { 20, 15, 15, 15, 20, 15 });
    objInfo.setWidthPercentage(100);
    objInfo.getDefaultCell().setBorder(com.itextpdf.text.Rectangle.NO_BORDER);

    Font labelFont = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.BOLD | Font.ITALIC);
    Font valueFont = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.NORMAL);

    Font valueFontRed = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.NORMAL, BaseColor.RED);

    Font valueFontGreen = FontFactory.getFont(FontFactory.HELVETICA, 9, Font.NORMAL, BaseColor.GREEN);

    objInfo.addCell(new Paragraph("Nom :", labelFont));
    objInfo.addCell(new Paragraph(obj.getLastName(), valueFont));

    objInfo.addCell(new Paragraph("Prénom :", labelFont));
    objInfo.addCell(new Paragraph(obj.getFirstName(), valueFont));

    document.close();
    pdfWriter.close();
    baos.close();

    return baos;
}

我尝试了什么：

• 将 java 文件的编码更改为 utf-8

• 将项目的编码更改为 uft-8

• 将 encoding.properties 文件更改为 9

• 更改 Eclipse 的内容类型

Answer 1

在 pom.xml 的属性中添加这两行对我有用

<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>