Java生成PDF文件（附PDF文档）

以你之姓@ 2023-02-14 06:59 12阅读 0赞

pom依赖

<dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itext-asian</artifactId>
                <version>5.2.0</version>
            </dependency>
            <dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itextpdf</artifactId>
                <version>5.4.3</version>
            </dependency>

直接上代码

import com.itextpdf.text.*;
    import com.itextpdf.text.pdf.*;
    import com.sun.prism.paint.Color;
    
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.net.MalformedURLException;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import java.util.HashMap;
    import java.util.Map;
    
    /** * 生成PDF文件 * */
    public class PDFReportUtil { 
    
        private static Font headFont;// 设置字体大小
        private static Font keyFont;// 设置字体大小
        private static Font textFont;// 设置字体大小
        private static Font infoFont;// 设置字体大小
        private static Font redTextFont;// 设置字体大小
        private static Font redInfoFont;// 设置字体大小
        private static Font bigFont;// 设置字体大小
        private static Font titleFont;// 设置字体大小
        private static Font grayFont;// 设置字体大小
        private static Font font2;// 设置字体大小
        private int maxWidth = 540;
    
    
        /** * UniGB-UCS2-H：横向字体 * UniGB-UCS2-V：竖向字体 */
    
        static { 
            BaseFont bfChinese;
            try { 
                // UniGB-UCS2-H 横向字体
                bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
                headFont = new Font(bfChinese, 10, Font.BOLD);// 设置字体大小
                bigFont = new Font(bfChinese, 18, Font.BOLD);// 设置字体大小
                keyFont = new Font(bfChinese, 9, Font.BOLD);// 设置字体大小
                titleFont = new Font(bfChinese, 14, Font.NORMAL);// 设置字体大小
                textFont = new Font(bfChinese, 9, Font.NORMAL);// 设置字体大小
                font2 = new Font(bfChinese, 7, Font.NORMAL);// 设置字体大小
                infoFont = new Font(bfChinese, 9, Font.NORMAL);// 设置字体大小
                redTextFont = new Font(bfChinese, 9, Font.NORMAL, BaseColor.RED);// 红色字体
                redInfoFont = new Font(bfChinese, 9, Font.NORMAL, BaseColor.RED);// 红色字体
                grayFont = new Font(bfChinese, 9, Font.NORMAL, BaseColor.GRAY);// 灰色字体
    
            } catch (Exception e) { 
                e.printStackTrace();
            }
        }
    
    
        /** * 生成PDF文件 * * @param map 文件内容 * @return * @throws MalformedURLException * @throws IOException * @throws DocumentException */
        public void generatePDF(File file, Map<String, Object> map)
                throws MalformedURLException, IOException, DocumentException { 
            Document doc = null;
    
            try { 
                //创建Document对象
                doc = new Document();
                doc.setMargins(20, 20, 30, 30);
    
                SimpleDateFormat sf = new SimpleDateFormat("yyyy.MM.dd");
    
                //创建书写器
                PdfWriter.getInstance(doc, new FileOutputStream(file));
    
    
    // // 添加页眉页脚
    // String headertitle = "*****报告" + " " + "*******";
    // addheaderandfooter(doc, chinese, headertitle);
    
          		//添加标题作者信息
                doc.addAuthor("java@pdf");
                doc.addTitle("ceshi");
    
                //打开文档。
                doc.open();
    
    
                //初始化pdf基本功能性文本
                Image image = null;
                PdfPTable table;
                PdfPCell cell = null;
                Paragraph paragraph = null;
    
    
                // 准备工作结束，进行文档内容填充：
                // 添加公司logo图片
    // table = new PdfPTable(1);
    // String picpath = NewCorpReportMap.get("reportLogoFilePath").toString();
    // addpicture(table, image, picpath, cell, doc);
    
                // 添加报告信息
                title(paragraph, "某某科技公司", "张三客户", textFont, bigFont, doc);
    
    // //****************表格
                PdfPTable table2 = new PdfPTable(5);
                table2.setTotalWidth(maxWidth);
                int[] with = { 120, 120, 100, 100, 100};
                table2.setWidths(with);
                table2.setLockedWidth(true);
                table2.setHorizontalAlignment(Element.ALIGN_CENTER);
                table2.getDefaultCell().setBorder(1);
    
                table2.addCell(createCell("学生信息列表：", keyFont, Element.ALIGN_LEFT, 5, false));
                table2.addCell(createCell("姓名", keyFont, Element.ALIGN_CENTER));
                table2.addCell(createCell("年龄", keyFont, Element.ALIGN_CENTER));
                table2.addCell(createCell("性别", keyFont, Element.ALIGN_CENTER));
                table2.addCell(createCell("住址", keyFont, Element.ALIGN_CENTER));
                table2.addCell(createCell("学生总人数", keyFont, Element.ALIGN_CENTER));
    
                int count = 5;
                for (int i = 0; i < count; i++) { 
                    table2.addCell(createCell("姓名" + i, textFont));
                    table2.addCell(createCell(i + 15 + "", textFont));
                    table2.addCell(createCell((i % 2 == 0) ? "男" : "女", textFont));
                    table2.addCell(createCell("地址" + i, textFont));
                    if (i == 0) { 
                        table2.addCell(createCell2(count + "", textFont, Element.ALIGN_CENTER, count, true));
                    }
                }
                doc.add(table2);
    
    // //****************表格
    
    
                // 第三页 报告摘要,每页空2行留给页眉
                doc.add(new Paragraph(" ", keyFont));
                doc.add(new Paragraph(" ", keyFont));
    
                doc.newPage();
    
    
            } catch (Exception e) { 
                e.printStackTrace();
            } finally { 
                doc.close();
            }
    
        }
    
    
        /**
         * 给pdf文件添加水印
         *
         * @param InPdfFile  要加水印的原pdf文件路径
         * @param outPdfFile 加了水印后要输出的路径
         *                   // * @param object
         *                   // * 水印图片路径
         *                   // * @param pageSize
         *                   // * 原pdf文件的总页数（该方法是我当初将数据导入excel中然后再转换成pdf所以我这里的值是用excel的行数计算出来的，
         *                   // * 如果不是我这种可以 直接用reader.getNumberOfPages()获取pdf的总页数）
         * @throws Exception
         */
        public static void addPdfMark(String InPdfFile, String outPdfFile, String readpicturepath) throws Exception { 
            PdfReader reader = new PdfReader(InPdfFile);
            int pageSize = reader.getNumberOfPages();
            PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(outPdfFile));
            Image img = Image.getInstance(readpicturepath);// 插入水印
            img.setAbsolutePosition(0, 0);
            for (int i = 1; i <= pageSize; i++) { 
                PdfContentByte under = stamp.getUnderContent(i);
                under.addImage(img);
            }
            stamp.close();// 关闭
            File tempfile = new File(InPdfFile);
            if (tempfile.exists()) { 
                tempfile.delete();
            }
        }
    
        // paragraph的格式
        public static void geshi1(Paragraph paragraph, Document doc) throws DocumentException { // 段落的格式
            paragraph.setIndentationLeft(30);
            paragraph.setIndentationRight(30);
            paragraph.setFirstLineIndent(20f);
            paragraph.setSpacingAfter(10f);
            paragraph.setSpacingBefore(10f);
            doc.add(paragraph);
        }
    
        // 居右无边框的cell
        public static void geshi3(PdfPCell cell, PdfPTable table) throws DocumentException { // 表格的格式
            cell.setBorder(PdfPCell.NO_BORDER);
            cell.setHorizontalAlignment(PdfPCell.ALIGN_RIGHT);
            cell.setVerticalAlignment(PdfPCell.ALIGN_RIGHT);
            cell.setVerticalAlignment(PdfPCell.ALIGN_RIGHT);
            table.addCell(cell);
        }
    
        // 居中无边框的cell
        public static void geshi2(PdfPCell cell, PdfPTable table) throws DocumentException { // 表格的格式
            cell.setBorder(PdfPCell.NO_BORDER);
            cell.setHorizontalAlignment(PdfPCell.ALIGN_CENTER);
            cell.setVerticalAlignment(PdfPCell.ALIGN_CENTER);
            cell.setVerticalAlignment(PdfPCell.ALIGN_CENTER);
            table.addCell(cell);
        }
    
        // 不居中无边框的cell
        public static void geshi12(PdfPCell cell, PdfPTable table) throws DocumentException { // 表格的格式
            cell.setBorder(PdfPCell.NO_BORDER);
            table.addCell(cell);
        }
    
        // 居中有边框的cell
        public static void geshi22(PdfPCell cell, PdfPTable table) throws DocumentException { // 表格的格式
            cell.setHorizontalAlignment(PdfPCell.ALIGN_CENTER);
            cell.setVerticalAlignment(PdfPCell.ALIGN_MIDDLE);
            cell.setVerticalAlignment(PdfPCell.ALIGN_CENTER);
            table.addCell(cell);
        }
    
        // 居中有边框的cell
        public static void geshi32(PdfPCell cell, PdfPTable table) throws DocumentException { // 表格的格式
            cell.setColspan(3);
            cell.setBorder(0);
            table.addCell(cell);
        }
    
        // 设置字体
        public static Font setfont(String fonttype, float fontsize, int fontflag, Color fontcolor, int fontstyle)
                throws DocumentException, IOException { 
            BaseFont baseFont5 = BaseFont.createFont(fonttype, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
            Font font = new Font(baseFont5, fontsize, fontflag);
            font.setColor(BaseColor.BLACK);
            if (fontstyle != 0) { // 如果传参为0不设置字体
                font.setStyle(fontstyle);
            }
            return font;
        }
    
        // 插入图片
        public static void addPicture(PdfPTable table, Image image, String picpath, PdfPCell cell, Document doc)
                throws MalformedURLException, IOException, DocumentException { 
            image = Image.getInstance(picpath);
            //图片尺寸
            image.scaleAbsolute(75, 75);
            cell = new PdfPCell(image);
            geshi3(cell, table);
            doc.add(table);
        }
    
        // 首页--固定格式布局
        public static void title(Paragraph paragraph, String company, String cusName,
                                 Font myfont, Font myfont3, Document doc) throws DocumentException { 
    
            paragraph = new Paragraph(cusName + company, myfont3);// 公司名
            paragraph.setAlignment(1);
            doc.add(paragraph);
    
            doc.add(new Paragraph(" ", myfont));
            doc.add(new Paragraph(" ", myfont));
    
        }
    
    
        //非空判断
        public static String isNull(Object a) { 
            if (a == null || a.equals("null")) { 
                return "";
            } else { 
                return a + "";
            }
        }
    
    
        /** * 创建单元格 * * @param value 文本 * @param font 字体 * @param align 对齐方式 0-左对齐 1-居中 2-右对齐 * @return */
        public PdfPCell createCell(String value, Font font, int align) { 
            PdfPCell cell = new PdfPCell();
            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
            cell.setHorizontalAlignment(align);
            cell.setPhrase(new Phrase(value, font));
            cell.setPaddingTop(4.0f);
            cell.setPaddingBottom(5.0f);
            return cell;
        }
    
        /** * 无边框 居左 * * @param value * @param font * @param * @return */
        public PdfPCell createCell3(String value, Font font) { 
            PdfPCell cell = new PdfPCell();
            cell.setVerticalAlignment(Element.ALIGN_LEFT);
            cell.setHorizontalAlignment(0);//居左
            cell.setPhrase(new Phrase(value, font));
            //无边框
            cell.setBorder(0);
            cell.setPaddingTop(1.0f);
            cell.setPaddingBottom(10.0f);
            return cell;
        }
    
        /** * 无边框 * * @param value * @param font * @param align 0-居左 1-居中 2-居右 * @return */
        public PdfPCell createCell4(String value, Font font, int align) { 
            PdfPCell cell = new PdfPCell();
            cell.setVerticalAlignment(Element.ALIGN_RIGHT);
            cell.setHorizontalAlignment(align);//居右
            cell.setPhrase(new Phrase(value, font));
            //无边框
            cell.setBorder(0);
            cell.setPaddingTop(1.0f);
            cell.setPaddingBottom(10.0f);
            return cell;
        }
    
        /** * @param value 文本 * @param font 字体 * @return */
        public PdfPCell createCell(String value, Font font) { 
            PdfPCell cell = new PdfPCell();
            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
            cell.setPhrase(new Phrase(value, font));
            return cell;
        }
    
        /** * @param value 文本 * @param font 字体 * @param align 对齐方式 0-左对齐 1-居中 2-右对齐 * @param colspan 合并列 * @param boderFlag 是否有边框 * @return */
        public PdfPCell createCell(String value, Font font, int align, int colspan, boolean boderFlag) { 
            PdfPCell cell = new PdfPCell();
            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
            cell.setHorizontalAlignment(align);
            cell.setColspan(colspan);
            cell.setPhrase(new Phrase(value, font));
            cell.setPadding(3.0f);
            if (!boderFlag) { 
                cell.setBorder(0);
                cell.setPaddingTop(15.0f);
                cell.setPaddingBottom(8.0f);
            }
            return cell;
        }
    
        /** * @param value 文本 * @param font 字体 * @param align 对齐方式 0-左对齐 1-居中 2-右对齐 * @param rowspan 合并行 * @param boderFlag 是否有边框 * @return */
        public PdfPCell createCell2(String value, Font font, int align, int rowspan, boolean boderFlag) { 
            PdfPCell cell = new PdfPCell();
            cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
            cell.setHorizontalAlignment(align);
            cell.setRowspan(rowspan);
            cell.setPhrase(new Phrase(value, font));
            cell.setPadding(3.0f);
            if (!boderFlag) { 
                cell.setBorder(0);
                cell.setPaddingTop(15.0f);
                cell.setPaddingBottom(8.0f);
            }
            return cell;
        }
    
    
        public static void main(String[] args) throws IOException, DocumentException { 
            Map<String, Object> map = new HashMap<>();
            new PDFReportUtil().generatePDF(new File("D:/temp/测试.pdf"), map);
            System.out.println("pdf已生成");
        }
    }

效果展示：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc0MDUzMA_size_16_color_FFFFFF_t_70]

[PDF中文帮助文档][PDF]  
[Paragraph API][]  
[Phrase API][]

**开心一刻**

> 不小心把50块钱投进去了，司机说我没权打开，只能收后面上来人的散钱了，收到了48块刚好进站有一人要上车，我马上伸手说给钱，他一愣说不是无人售票么，我说快点，司机和车上的人都说快点（他们知道我怎么回事），后面这大哥直接把钱包扔给我说：你们人多，我就这点钱了。然后就跑了……跑了……了

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc0MDUzMA_size_16_color_FFFFFF_t_70 1]

相关链接  
https://blog.csdn.net/weixin\_37848710/article/details/89522862

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc0MDUzMA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200601165857339.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc0MDUzMA==,size_16,color_FFFFFF,t_70
[PDF]: https://wenku.baidu.com/view/74697bbf1a37f111f1855b0e.html
[Paragraph API]: https://www.coderanch.com/how-to/javadoc/itext-2.1.7/com/lowagie/text/Paragraph.html
[Phrase API]: https://www.coderanch.com/how-to/javadoc/itext-2.1.7/com/lowagie/text/Phrase.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc0MDUzMA_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200403114750656.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc0MDUzMA==,size_16,color_FFFFFF,t_70