Java开源工具iText在PDF文件中创建表格

布满荆棘的人生 2022-09-30 13:49 208阅读 0赞

上篇文章 [Java开源工具iText生成PDF文件][Java_iText_PDF]，介绍了如何利用IText生成PDF文档，本篇文章将说明如何在PDF中添加Table。

**1、代码示例**

import com.itextpdf.text.*;
    import com.itextpdf.text.pdf.PdfPCell;
    import com.itextpdf.text.pdf.PdfPTable;
    import com.itextpdf.text.pdf.PdfWriter;
    
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    
    /** * 使用iText生成PDF文件 * 在PDF文件中创建表格 */
    public class CreateTablePdf { 
    
        /** * Creates a table; widths are set with setWidths(). * * @return a PdfPTable * @throws DocumentException */
        public static PdfPTable createTable1() throws DocumentException {
            PdfPTable table = new PdfPTable(3);
            table.setWidthPercentage(288 / 5.23f);
            table.setWidths(new int[] { 2, 1, 1 });
    
            PdfPCell cell;
            cell = new PdfPCell(new Phrase("Table 1"));
            cell.setColspan(3);
            table.addCell(cell);
    
            cell = new PdfPCell(new Phrase("Cell with rowspan 2"));
            cell.setRowspan(2);
            table.addCell(cell);
            table.addCell("row 1; cell 1");
            table.addCell("row 1; cell 2");
            table.addCell("row 2; cell 1");
            table.addCell("row 2; cell 2");
            return table;
        }
    
        /** * Creates a table; widths are set with setWidths(). * * @return a PdfPTable * @throws DocumentException */
        public static PdfPTable createTable2() throws DocumentException {
            PdfPTable table = new PdfPTable(3);
            table.setTotalWidth(288);
            table.setLockedWidth(true);
            table.setWidths(new float[] { 2, 1, 1 });
            PdfPCell cell;
            cell = new PdfPCell(new Phrase("Table 2"));
            cell.setColspan(3);
            table.addCell(cell);
            cell = new PdfPCell(new Phrase("Cell with rowspan 2"));
            cell.setRowspan(2);
            table.addCell(cell);
            table.addCell("row 1; cell 1");
            table.addCell("row 1; cell 2");
            table.addCell("row 2; cell 1");
            table.addCell("row 2; cell 2");
            return table;
        }
    
        /** * Creates a table; widths are set in the constructor. * * @return a PdfPTable * @throws DocumentException */
        public static PdfPTable createTable3() throws DocumentException {
            PdfPTable table = new PdfPTable(new float[] { 2, 1, 1 });
            table.setWidthPercentage(55.067f);
            PdfPCell cell;
            cell = new PdfPCell(new Phrase("Table 3"));
            cell.setColspan(3);
            table.addCell(cell);
            cell = new PdfPCell(new Phrase("Cell with rowspan 2"));
            cell.setRowspan(2);
            table.addCell(cell);
            table.addCell("row 1; cell 1");
            table.addCell("row 1; cell 2");
            table.addCell("row 2; cell 1");
            table.addCell("row 2; cell 2");
            return table;
        }
    
        /** * Creates a table; widths are set with special setWidthPercentage() method. * * @return a PdfPTable * @throws DocumentException */
        public static PdfPTable createTable4() throws DocumentException {
            PdfPTable table = new PdfPTable(3);
            Rectangle rect = new Rectangle(523, 770);
            table.setWidthPercentage(new float[] { 144, 72, 72 }, rect);
            PdfPCell cell;
            cell = new PdfPCell(new Phrase("Table 4"));
            cell.setColspan(3);
            table.addCell(cell);
            cell = new PdfPCell(new Phrase("Cell with rowspan 2"));
            cell.setRowspan(2);
            table.addCell(cell);
            table.addCell("row 1; cell 1");
            table.addCell("row 1; cell 2");
            table.addCell("row 2; cell 1");
            table.addCell("row 2; cell 2");
            return table;
        }
    
        /** * Creates a table; widths are set with setTotalWidth(). * * @return a PdfPTable * @throws DocumentException */
        public static PdfPTable createTable5() throws DocumentException {
            PdfPTable table = new PdfPTable(3);
            table.setTotalWidth(new float[] { 144, 72, 72 });
            table.setLockedWidth(true);
            PdfPCell cell;
            cell = new PdfPCell(new Phrase("Table 5"));
            cell.setColspan(3);
            table.addCell(cell);
            cell = new PdfPCell(new Phrase("Cell with rowspan 2"));
            cell.setRowspan(2);
            table.addCell(cell);
            table.addCell("row 1; cell 1");
            table.addCell("row 1; cell 2");
            table.addCell("row 2; cell 1");
            table.addCell("row 2; cell 2");
            return table;
        }
    
        public static PdfPTable createTable6() throws DocumentException{
            PdfPTable table = new PdfPTable(10);
            table.setTotalWidth(595);
            //table.setLockedWidth(true);
    
            PdfPCell cell;
            cell = new PdfPCell(new Phrase("Table 6"));
            cell.setColspan(10);
            table.addCell(cell);
    
            for (int i = 1; i < 100; i++) {
                cell = new PdfPCell(new Phrase(String.valueOf(i)));
                cell.setBackgroundColor(BaseColor.LIGHT_GRAY);
                table.addCell(cell);
            }
            return table;
        }
    
        public void createPDF(String filename) {
            Document document = new Document(PageSize.A4);
            try {
                PdfWriter.getInstance(document, new FileOutputStream(filename));
    
                document.addTitle("table of PDF");
                document.addAuthor("eff666");
                document.addSubject("This is the subject of the PDF file.");
                document.addKeywords("This is the keyword of the PDF file.");
    
                document.open();
    
                PdfPTable table = createTable1();
                document.add(table);
    
                table = createTable2();
                table.setSpacingBefore(5);
                table.setSpacingAfter(5);
                document.add(table);
    
                table = createTable3();
                document.add(table);
    
                table = createTable4();
                table.setSpacingBefore(5);
                table.setSpacingAfter(5);
                document.add(table);
    
                table = createTable5();
                document.add(table);
    
                table = createTable6();
                document.add(table);
    
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (DocumentException e) {
                e.printStackTrace();
            } finally {
                document.close();
            }
        }
    
        public static void main(String[] args) {
    
            CreateTablePdf pdf = new CreateTablePdf();
    
            String filename = "F:\\pdf\\pdf_table_001.pdf";
            pdf.createPDF(filename);
        }
    }

[Java_iText_PDF]: http://blog.csdn.net/eff666/article/details/64923590