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各种转 PDF

  1. package com.cinc.messageservice.message.mail.util;
  2. import com.cinc.messageservice.utils.EmptyUtils;
  3. import com.itextpdf.html2pdf.ConverterProperties;
  4. import com.itextpdf.html2pdf.HtmlConverter;
  5. import com.itextpdf.kernel.geom.PageSize;
  6. import com.itextpdf.kernel.PDF.PdfDocument;
  7. import com.itextpdf.kernel.PDF.PdfWriter;
  8. import com.itextpdf.styledxmlparser.CSS.media.MediaDeviceDescription;
  9. import com.itextpdf.styledxmlparser.CSS.media.MediaType;
  10. import com.itextpdf.text.*;
  11. import com.itextpdf.text.PDF.*;
  12. import com.itextpdf.tool.xml.XMLWorkerFontProvider;
  13. import java.io.*;
  14. import java.NET.URL;
  15. import java.util.HashMap;
  16. import java.util.Map;
  17. /**
  18.  * @Author: hhr
  19.  * @Despriction:
  20.  * @CreatedTime: 2020/3/12 16:39
  21.  * @ModifyBy:
  22.  * @ModifyTime:
  23.  * @ModifyDespriction:
  24.  * @Version: V1.0.0
  25.  */
  26. public class PdfUtil {
  27.     // 默认中文字体
  28.     private static final String FONT = "C:\\Windows\\Fonts\\simhei.ttf";
  29.     /**
  30.      * 根据模板将数据输出 PDF 文件
  31.      * @param tagetPath
  32.      * @param templatePath
  33.      * @param dataMap
  34.      * @param imageMap
  35.      * @throws Exception
  36.      */
  37.     public static void templeteToPdf(String tagetPath, String templatePath, Map<String, Object> dataMap, Map<String, Object> imageMap) throws Exception {
  38.         PdfReader reader;
  39.         FileOutputStream out;
  40.         ByteArrayOutputStream bos;
  41.         PdfStamper stamper;
  42.         try {
  43.             BaseFont bf = BaseFont.createFont(FONT , BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
  44.             Font fontChinese = new Font(bf, 5, Font.NORMAL);
  45.             out = new FileOutputStream(tagetPath);// 输出流
  46.             reader = new PdfReader(templatePath);// 读取 PDF 模板
  47.             bos = new ByteArrayOutputStream();
  48.             stamper = new PdfStamper(reader, bos);
  49.             AcroFields form = stamper.getAcroFields();
  50.             // 文字类的内容处理
  51.             form.addSubstitutionFont(bf);
  52.             if (!EmptyUtils.isMapEmpty(dataMap)){
  53.                 for(String key : dataMap.keySet()){
  54.                     String value = (String)dataMap.get(key);
  55.                     form.setField(key,value);
  56.                 }
  57.             }
  58.             // 图片类的内容处理
  59.             if (!EmptyUtils.isMapEmpty(imageMap)){
  60.                 for(String key : imageMap.keySet()) {
  61.                     String value = (String)imageMap.get(key);
  62.                     String imgpath = value;
  63.                     int pageNo = form.getFieldPositions(key).get(0).page;
  64.                     Rectangle signRect = form.getFieldPositions(key).get(0).position;
  65.                     float x = signRect.getLeft();
  66.                     float y = signRect.getBottom();
  67.                     // 根据路径读取图片
  68.                     Image image = Image.getInstance(imgpath);
  69.                     // 获取图片页面
  70.                     PdfContentByte under = stamper.getOverContent(pageNo);
  71.                     // 图片大小自适应
  72.                     image.scaleToFit(signRect.getWidth(), signRect.getHeight());
  73.                     // 添加图片
  74.                     image.setAbsolutePosition(x, y);
  75.                     under.addImage(image);
  76.                 }
  77.             }
  78.             // 如果为 false, 生成的 PDF 文件可以编辑, 如果为 true, 生成的 PDF 文件不可以编辑
  79.             stamper.setFormFlattening(true);
  80.             stamper.close();
  81.             Document doc = new Document();
  82.             Font font = new Font(bf, 32);
  83.             PdfCopy copy = new PdfCopy(doc, out);
  84.             doc.open();
  85.             PdfImportedPage importPage = copy.getImportedPage(new PdfReader(bos.toByteArray()), 1);
  86.             copy.addPage(importPage);
  87.             doc.close();
  88.         } catch (IOException e) {
  89.             System.out.println(e);
  90.         } catch (DocumentException e) {
  91.             System.out.println(e);
  92.         }
  93.     }
  94.     /**
  95.      * HTML 转 PDF
  96.      * @param sourcePath
  97.      * @param tagetPath
  98.      * @param pageSize
  99.      * @param baseuri
  100.      * @throws Exception
  101.      */
  102.     public static void htmlToPdf(String sourcePath, String tagetPath, PageSize pageSize, String baseuri) throws Exception {
  103.         PdfWriter writer = new PdfWriter(tagetPath);
  104.         PdfDocument pdfDocument = new PdfDocument(writer);
  105.         pdfDocument.setTagged();
  106.         // 设置页面大小
  107.         pdfDocument.setDefaultPageSize(pageSize);
  108.         ConverterProperties converterProperties = new ConverterProperties();
  109.         converterProperties.setBaseUri(baseuri);
  110.         MediaDeviceDescription mediaDeviceDescription = new MediaDeviceDescription(MediaType.SCREEN);
  111.         mediaDeviceDescription.setWidth(pageSize.getWidth());
  112.         converterProperties.setMediaDeviceDescription(mediaDeviceDescription);
  113.         URL url = new URL(sourcePath);
  114.         InputStream inputStream = url.openStream();
  115.         //InputStream inputStream = new FileInputStream(sourcePath);
  116.         HtmlConverter.convertToPdf(inputStream, pdfDocument, converterProperties);
  117.         inputStream.close();
  118.     }
  119.     /**
  120.      * 对图片转 PDF
  121.      * @param picturePath
  122.      * @param os
  123.      */
  124.     public static void imageToPDF(String picturePath, OutputStream os) {
  125.         try {
  126.             Document document = new Document(com.itextpdf.text.PageSize.A4);
  127.             com.itextpdf.text.PDF.PdfWriter.getInstance(document, os);
  128.             document.open();
  129.             // 重新设置宽高
  130.             Image image = Image.getInstance(picturePath);
  131.             float documentWidth = document.getPageSize().getWidth() - document.leftMargin() - document.rightMargin();
  132.             float documentHeight = documentWidth / 580 * 320;
  133.             image.scaleAbsolute(documentWidth, documentHeight);
  134.             document.add(image);
  135.             document.close();
  136.         } catch (Exception e) {
  137.             e.printStackTrace();
  138.         }
  139.     }
  140.     /**
  141.      * txt 文件转 PDF 文件
  142.      * @param text
  143.      * @param os
  144.      * @throws DocumentException
  145.      * @throws IOException
  146.      */
  147.     public static void textToPDF(String text,  OutputStream os) throws DocumentException, IOException {
  148.         Document document = new Document();
  149.         com.itextpdf.text.PDF.PdfWriter.getInstance(document, os);
  150.         document.open();
  151.         // 方法一: 使用 Windows 系统字体 (TrueType)
  152.         BaseFont baseFont = BaseFont.createFont(FONT, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
  153.         Font font = new Font(baseFont);
  154.         InputStreamReader isr = new InputStreamReader(new FileInputStream(new File(text)), "GBK");
  155.         BufferedReader bufferedReader = new BufferedReader(isr);String str = "";
  156.         while ((str = bufferedReader.readLine()) != null) {
  157.            document.add(new Paragraph(str,font));
  158.         }
  159.         document.close();
  160. }
  161.     public static void main(String[] args) throws Exception{
  162.        /* HashMap<String, Object> dataMap = new HashMap<>();
  163.         HashMap<String,Object> imageMap = new HashMap<>();
  164.         imageMap.put("image", "E:\\aaa\\11.jpg");
  165.         dataMap.put("name", "测试 Test");
  166.         dataMap.put("projectName", "西山采购项目");
  167.         dataMap.put("stock", "前山库房");
  168.         dataMap.put("code", "001");
  169.         dataMap.put("fill_4", "水浒");
  170.         dataMap.put("fill_5", "1");
  171.         dataMap.put("fill_6", "1");
  172.         dataMap.put("fill_7", "1");
  173.         dataMap.put("fill_8", "2");
  174.         dataMap.put("fill_9", "11");
  175.         dataMap.put("fill_10", "12");
  176.         templeteToPdf("E:\\aaa\\tp.pdf","E:\\aaa\\toPDF.pdf",dataMap, imageMap);
  177.         String image = "E:\\aaa\\aa.txt";
  178.         OutputStream os = new FileOutputStream("E:\\aaa\\b.pdf");*/
  179.         htmlToPdf("https://wenku.baidu.com/view/6f1509a5d0f34693daef5ef7ba0d4a7303766c5b.html?rec_flag=default",  "E:\\aaa\\p.pdf", PageSize.A2, "https://blog.csdn.net/erlian1992/article/details/82631290");
  180.     }
  181. }
  182.     /**
  183.      * 用于中文显示的 Provider
  184.      */
  185.     class AsianFontProvider extends XMLWorkerFontProvider {
  186.         @Override
  187.         public Font getFont(final String fontname, String encoding, float size, final int style) {
  188.             try {
  189.                 BaseFont bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
  190.                 return new Font(bfChinese, size, style);
  191.             } catch (Exception e) {
  192.             }
  193.             return super.getFont(fontname, encoding, size, style);
  194.     }
  195. }
  196. dependency>
  197.             <groupId>com.itextpdf</groupId>
  198.             <artifactId>itextpdf</artifactId>
  199.             <version>5.5.11</version>
  200.         </dependency>
  201.         <dependency>
  202.             <groupId>com.itextpdf.tool</groupId>
  203.             <artifactId>xmlworker</artifactId>
  204.             <version>5.5.11</version>
  205.         </dependency>
  206.         <dependency>
  207.             <groupId>com.itextpdf</groupId>
  208.             <artifactId>itext-asian</artifactId>
  209.             <version>5.2.0</version>
  210.         </dependency>
  211.         <dependency>
  212.             <groupId>com.itextpdf</groupId>
  213.             <artifactId>html2pdf</artifactId>
  214.             <version>2.1.5</version>
  215.         </dependency>

模板生成 PDF 文件时, 需要用 Adobe Acrobat DC 工具编辑模板

来源: http://www.bubuko.com/infodetail-3483831.html


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