java - 需要使用 iText 的 Lowagie 实现在 PDF 标题的表格单元格内写入阿拉伯文本

Question

客户要求我们在生成的 PDF 标题中创建一个包含一些字段和值的表格。需要重复此 header 。

早期的实现将 PDFPTable 和 PDFPCell 中的数据放在正文内容中，即使经过多次尝试也未能重复。我们已经从 PDFPTable --> Table 和 PDFPCell --> Cell 转移，并且它在标题中工作。现在表的一列包含阿拉伯文本，并且在简单的表和单元格中没有 RUNDIRECTION 设置 RTL 的选项。以 Unicode 编写的文本打印错误。任何帮助表示赞赏。指定供引用的源代码是示例，不包含完整的处理。

public class DataReportFiller {

    public static void main(String[] args) {

        ff.setFileType(FileFormat.FILE_TYPE_PDF);
        PDFWriter pw = new PDFWriter(ff, basePath);

        pw.open(fileName, recordSize);
        Document document = pw.getDocument();
        document.setPageSize(PageSize.A4);

        pw.openFileForHeader();

        String accStr10[] = null;

        accStr10 = new String[] { "TESTING DATA", "", "", "", "", "",
                "Total Pages ", Integer.toString(totalPages), "", "",
                "\u0629\u062d\u0641\u0635\u0644\u0627 \u0645\u0642\u0631", "" };

        pw.setBorder = false;
        pw.setBold = true;
        pw.fontColour = PDFWriter.COLOUR_BLACK;
        pw.bgColour = PDFWriter.COLOUR_WHITE;
        pw.horAlignment = pw.ALIGN_LEFT;

        // ----------------------------------
        int totalPages = 1;
        totalPages = totalPages + ((recordSize + 5) / 12);

        Table headerTable = pw.getHeaderTable();
        headerTable.setBorder(Rectangle.BOTTOM);
        headerTable.setBorderColor(Color.WHITE);
        pw.writeStatementHeaderLine(accStr10, DataWriter.LINE_TYPE_GENERAL);
        headerPhrase.add(2, headerTable);

        HeaderFooter header = new HeaderFooter(headerPhrase, false);
        header.setAlignment(0);
        header.setBorder(Rectangle.NO_BORDER);
        document.setHeader(header);
        pw.openFile();

        pw.createEmptyLine();
        pw.commitEmptyLine();

        pw.close();

    }

    // Another method to write data in header, unable to put arabic text here
    public boolean writeStatementHeaderLine(String line[], int type)
            throws Exception {
        try {

            // Increment the current line number
            currentLineNo++;

            // Check if the text is not null or empty
            if (line == null || line.length == 0) {

                for (int i = 0; i < fileFormat.getFileColCount(); i++) {
                    chunk = new Chunk(" ", font);
                    Cell simpleCell = new Cell(new Phrase(chunk));
                    headerTable.addCell(simpleCell);
                }

                return false;
            }

            for (int i = 0; i < line.length; i++) {
                setFont();

                Cell simpleCell = null;
                if (line[i] == null) {
                    chunk = new Chunk("", font);
                    simpleCell = new Cell(new Phrase(chunk));
                } else if ((type == LINE_TYPE_GENERAL && i >= line.length - 2)) {
                    final String FONT = applicationContext
                            .getProperty("arabic.font.path");
                    font = FontFactory.getFont(FONT, BaseFont.IDENTITY_H,
                            BaseFont.EMBEDDED, 8);
                    if (line[i].equalsIgnoreCase("iban"))
                        setFont();
                    chunk = new Chunk(line[i], font);
                    simpleCell = new Cell(new Phrase(chunk));

                } else {
                    chunk = new Chunk(line[i], font);
                    if (type == LINE_TYPE_GENERAL) {
                        simpleCell = new Cell(new Phrase(chunk));
                    }

                }
                simpleCell.setBorder(Rectangle.NO_BORDER);

                if ((type == LINE_TYPE_GENERAL && i >= line.length - 2)) {
                    simpleCell.setHorizontalAlignment(Element.ALIGN_RIGHT);
                    // simpleCell.rotate();

                }
                headerTable.addCell(simpleCell);
            }
        } catch (Exception e) {
            e.printStackTrace();
            deleteFile();
            e.printStackTrace();
            throw e;
        }

        return true;
    }

}

需要在 PDF 标题表中将分支打印为“فف ف٬ْ”，其中显示“فففف”。

Answer 1

最终通过PageEvent的onEndPage方法实现，代码引用如下

pw.open File();

        pw.writer.setPageEvent(new PdfPageEventHelper(){


            protected ApplicationContext applicationContext = ApplicationContext.getInstance();




            @Override
            public void onEndPage(PdfWriter writer, Document document)
            {


                PdfPTable table1=new PdfPTable(12);
                try{


                String accStr[] = null;
                String accStr10[] = null;

                accStr = new String[] { accountTitle ,"","","","","","Period Covered " ,startDate +" to " +endDate,"","","\u0645\u062f\u0629 \u0627\u0644\u062a\u063a\u0637\u064a\u0629",""};
                accStr10 = new String[] {address1 ,"","","","","","Page No ",Integer.toString(writer.getPageNumber()-1),"","","\u0631\u0642\u0645 \u0627\u0644\u0635\u0641\u062d\u0629",""};

                table1.setTotalWidth(522);
                float f[] = {45,10,0,0,0,0,25,35,0,0,20,0};
                table1.setWidths(f);

                pw.setBorder = true;
                pw.setBold = true;
                pw.fontColour = AccStmtPDFWriter.COLOUR_BLACK;
                pw.bgColour = AccStmtPDFWriter.COLOUR_WHITE;
                pw.horAlignment = pw.ALIGN_LEFT;
                PdfPCell pdfCell=null;

                //table1=pw.getTable1();



                if(!FieldNameUtil.isApplicableForBahrain){
                    pdfCell = new PdfPCell(new Phrase(new Chunk("")));
                    pdfCell.setBorder(0);
                    pdfCell.setColspan(12);             
                    table1.addCell(pdfCell);
                    table1=writeHeaderLine(accStr, DataWriter.LINE_TYPE_GENERAL,table1);
                    }

                    pdfCell = new PdfPCell(new Phrase(new Chunk("")));
                    pdfCell.setBorder(0);
                    pdfCell.setColspan(12);             
                    table1.addCell(pdfCell);
                    table1=writeHeaderLine(accStr10, DataWriter.LINE_TYPE_GENERAL,table1);


                table1.writeSelectedRows(0, -1, 57, 730, writer.getDirectContent());
                //document.add(table1);
                table1.deleteBodyRows();
                }catch(Exception e){
                    e.printStackTrace();
                }

            }

            public PdfPTable writeHeaderLine(String line[], int type,PdfPTable table2)
                    throws Exception {
                Chunk chunk = null;
                PdfPCell cell =null;
                PdfPTable tableNew =table2;
                Font font=FontFactory.getFont("Arial",8,Font.BOLD,Color.BLACK);
                try {



                    for (int i = 0; i < line.length; i++) {
                        //changed by shruti
                        if (line[i] == null)
                            chunk = new Chunk("", font);
                        else if(type==115 || (type==pw.LINE_TYPE_GENERAL && i>=line.length-2) || (type==112 && i==line.length-1)){  
                            final String FONT = applicationContext.getProperty("arabic.font.path");
                            font = FontFactory.getFont(FONT, BaseFont.IDENTITY_H, BaseFont.EMBEDDED,8);
                            if(line[i].equalsIgnoreCase("iban"))
                                font=FontFactory.getFont("Arial",8,Font.BOLD,Color.BLACK);
                            chunk = new Chunk(line[i], font);
                        }else
                            chunk = new Chunk(line[i], font);

                        cell = new PdfPCell(new Phrase(chunk));
                        cell.setBorder(Rectangle.NO_BORDER);
                        cell.setVerticalAlignment(Element.ALIGN_BOTTOM); 
                        if((type==pw.LINE_TYPE_GENERAL && i>=line.length-2)){
                            cell.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);
                            cell.setHorizontalAlignment(Element.ALIGN_RIGHT);
                            tableNew.addCell(cell);
                        }else{
                            tableNew.addCell(cell);
                        }

                    }

                    return tableNew;

                } catch (Exception e) {
                    e.printStackTrace();
                    throw e;
                }
                }




        });