Java开源工具iText在PDF文件中创建表格

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上篇文章 Java开源工具iText生成PDF文件，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);    }}
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