java使用IText将数据导出为pdf文件(数据为excel表格样式)

1.pom.xml导入使用的jar包

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       <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-pdfa</artifactId>
            <version>5.5.0</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-asian</artifactId>
            <version>5.2.0</version>
        </dependency>
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2.直接上代码(数据导出为pdf文件,数据呈现样式为自定义excel表格样式,支持多页展示)

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public class DataToPdf {
    public static final String DEST = "pdf/tables.pdf";

    public static void main(String[] args) throws IOException, DocumentException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new DataToPdf().dataToPdf(DEST);
    }

    /**
     * 数据转pdf
     * @param dest
     * @throws IOException
     * @throws DocumentException
     */
    public void dataToPdf(String dest) throws IOException, DocumentException {
        Document document = new Document();
        PdfWriter.getInstance(document, new FileOutputStream(dest));
        document.open();

        // 使用语言包字体
        BaseFont abf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);
        //字体
        Font font = new Font(abf, 8);

        //段落
        Paragraph p = new Paragraph("测试结算单", new Font(abf, 12, Font.BOLD));
        p.setAlignment(Paragraph.ALIGN_CENTER);
        document.add(p);

        //表格
        PdfPTable table = new PdfPTable(8);//numcolumns:列数
        table.setSpacingBefore(16f);//表格与上面段落的空隙

        //表格列创建并赋值
        PdfPCell cell = new PdfPCell(new Phrase("单位名称:测试有限公司", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);//居中
        cell.disableBorderSide(13);//去除左右上边框,保留下边框
        cell.setColspan(4);//合并列数
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("日期:2020-06-05", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.disableBorderSide(13);
        cell.setColspan(3);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("单位(元)", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);
        cell.disableBorderSide(13);
        cell.setColspan(1);
        table.addCell(cell);
        //首行
        cell = new PdfPCell(new Phrase("期间", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setColspan(2);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("月份", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("分类", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("年利率", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("日利率", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("基数", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("利息", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("起始日:2020-03-26\n" +
                "结束日:2020-04-25", font));
        cell.setPadding(16f);
        cell.setVerticalAlignment(Element.ALIGN_CENTER);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setRowspan(3);
        cell.setColspan(2);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("4", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("资金", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("1.10%", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("0.000031", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("10598164.91", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("325.01", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("4", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("资金", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("1.10%", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("0.000031", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("-", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("-", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("4", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("资金", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("1.10%", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("0.000031", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("-", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("-", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("合计", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setColspan(7);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("325.01", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("会计制单:", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);
        cell.disableBorderSide(14);
        cell.setColspan(4);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("复核:", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);
        cell.disableBorderSide(14);
        cell.setColspan(4);
        table.addCell(cell);
        table.setSpacingBefore(16f);
        document.add(table);

        //下一页
        document.newPage();
        //段落
        Paragraph p1 = new Paragraph("下一页测试结算单", new Font(abf, 12, Font.BOLD));
        p1.setAlignment(Paragraph.ALIGN_CENTER);
        document.add(p1);

        //表格
        table = new PdfPTable(8);//numcolumns:列数
        table.setSpacingBefore(16f);//表格与上面段落的空隙

        //表格列创建并赋值
        cell = new PdfPCell(new Phrase("单位名称:测试有限公司", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);//居中
        cell.disableBorderSide(13);//去除左右上边框,保留下边框
        cell.setColspan(4);//合并列数
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("日期:2020-06-05", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.disableBorderSide(13);
        cell.setColspan(3);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("单位(元)", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);
        cell.disableBorderSide(13);
        cell.setColspan(1);
        table.addCell(cell);
        //首行
        cell = new PdfPCell(new Phrase("期间", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setColspan(2);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("月份", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("分类", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("年利率", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("日利率", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("基数", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("利息", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("起始日:2020-04-26\n" +
                "结束日:2020-05-25", font));
        cell.setPadding(16f);
        cell.setVerticalAlignment(Element.ALIGN_CENTER);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setColspan(2);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("4", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("资金", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("1.10%", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("0.000031", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("10598164.91", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("325.01", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("合计", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        cell.setColspan(7);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("325.01", font));
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase("会计制单:", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);
        cell.disableBorderSide(14);
        cell.setColspan(4);
        table.addCell(cell);
        cell = new PdfPCell(new Phrase("复核:", font));
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);
        cell.disableBorderSide(14);
        cell.setColspan(4);
        table.addCell(cell);
        table.setSpacingBefore(16f);
        document.add(table);

        document.close();
    }
}
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3.上述代码中对于IText字体设置可改:

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使用iText中的字体 

   例:BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);  

使用Windows系统自带的字体

   例:BaseFont.createFont("C:/WINDOWS/Fonts/SIMYOU.TTF", BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);    

使用外部引入的资源字体(

   例:BaseFont.createFont("/SIMYOU.TTF", BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);    
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4.上述代码生成的表格边框隐藏方式:

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1:代表上边框

2:代表下边框

4:代表左边框

8:代表右边框
//需要隐藏那些边框就把对应的值加起来,得到的和就是要设置的值
//比如要隐藏左右边框 就是 4+8=12
cell.disableBorderSide(12);//左右没了
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 具体例子:

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//隐藏上边框
cell.disableBorderSide(1);
//隐藏下边框 cell.disableBorderSide(2); //隐藏上、下边框 cell.disableBorderSide(3); //隐藏左边框 cell.disableBorderSide(4); //隐藏左、上边框 cell.disableBorderSide(5); //隐藏左、下边框 cell.disableBorderSide(6); //隐藏左、上、下边框 cell.disableBorderSide(7); //隐藏右边框 cell.disableBorderSide(8); //隐藏右、上边框 cell.disableBorderSide(9); //隐藏右、下边框 cell.disableBorderSide(10); //隐藏右、上、下边框 cell.disableBorderSide(11); //隐藏左、右边框 cell.disableBorderSide(12);//左右没了 //隐藏上、左、右边框 cell.disableBorderSide(13);//只剩下 //隐藏下、左、右边框 cell.disableBorderSide(14);//只剩上 //隐藏全部 cell.disableBorderSide(15);//全没了
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5.运行展示效果

 例:
 转自:https://www.cnblogs.com/xianshen/p/13139435.html
 
原文地址:https://www.cnblogs.com/javalinux/p/15670203.html