java生成PDF的几种方法

问题场景

分析比较

用到的资源

举例：

/ * 抠模板 * @throws Exception */ public void createAllPdf() throws Exception { //填充创建pdf PdfReader reader = null; PdfStamper stamp = null; try { reader = new PdfReader("E:/module.pdf"); SimpleDateFormat simp = new SimpleDateFormat("yyyy-MM-dd"); String times = simp.format(new Date()).trim(); //创建生成报告名称 String root = ServletActionContext.getRequest().getRealPath("/upload") + File.separator; if (!new File(root).exists()) new File(root).mkdirs(); File deskFile = new File(root, times + ".pdf"); stamp = new PdfStamper(reader, new FileOutputStream(deskFile)); //取出报表模板中的所有字段 AcroFields form = stamp.getAcroFields(); // 填充数据 form.setField("name", "zhangsan"); form.setField("sex", "男"); form.setField("age", "15"); //报告生成日期 SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd"); String generationdate = dateformat.format(new Date()); form.setField("generationdate", generationdate); stamp.setFormFlattening(true); } catch (Exception e) { e.printStackTrace(); } finally { if (stamp != null) { stamp.close(); } if (reader != null) { reader.close(); } } } 

package itext; import com.itextpdf.text.*; import com.itextpdf.text.pdf.*; import java.io.FileNotFoundException; import java.io.FileOutputStream; / * Created on 2017/5/16 * Author: youxingyang. */ public class TableAndTitle { / * @param args */ public static void main(String[] args) throws Exception { String fileName = "tableAndTitle.pdf"; TableAndTitle.test(fileName); } private static void test(String fileName) { Document document = new Document(); try { PdfWriter.getInstance(document, new FileOutputStream(fileName)); document.open(); PdfPTable table = new PdfPTable(1); table.setKeepTogether(true); table.setSplitLate(false); PdfPTable table1 = new PdfPTable(1); PdfPCell cell0 = new PdfPCell(); Paragraph p = new Paragraph("table title sample"); p.setAlignment(1); p.setSpacingBefore(15f); cell0.setHorizontalAlignment(PdfPCell.ALIGN_CENTER); cell0.setVerticalAlignment(PdfPCell.ALIGN_MIDDLE);//然并卵 cell0.setPaddingTop(-2f);//把字垂直居中 cell0.setPaddingBottom(8f);//把字垂直居中 cell0.addElement(p); cell0.setBorder(0); table1.addCell(cell0); PdfPTable pTable = new PdfPTable(table1); document.add(pTable); PdfPTable table2 = new PdfPTable(2); float border = 1.5f; for (int a = 0; a < 20; a++) { PdfPCell cell = new PdfPCell(); Paragraph pp; if (a == 0 || a == 1) { pp = str2ParaByTwoFont("tableTitle" + (a + 1), 9f, BaseColor.BLACK, Font.BOLD); //小五 加粗 cell.setBorderWidthBottom(border); cell.setBorderWidthTop(border); } else { if (a == 18 || a == 19) { cell.setBorderWidthTop(0); cell.setBorderWidthBottom(border); } else { cell.setBorderWidthBottom(0); cell.setBorderWidthTop(0); } pp = str2ParaByTwoFont("tableContent" + (a - 1), 9f, BaseColor.BLACK); //小五 } //设置间隔的背景色 if ((a + 1) % 2 == 0) { if (((a + 1) / 2) % 2 == 1) { cell.setBackgroundColor(new BaseColor(128, 128, 255)); } else { cell.setBackgroundColor(new BaseColor(128, 255, 255)); } } else { if (((a + 1) / 2) % 2 == 1) { cell.setBackgroundColor(new BaseColor(128, 255, 255)); } else { cell.setBackgroundColor(new BaseColor(128, 128, 255)); } } pp.setAlignment(1); cell.setBorderWidthLeft(0); cell.setBorderWidthRight(0); cell.setHorizontalAlignment(PdfPCell.ALIGN_CENTER); cell.setVerticalAlignment(PdfPCell.ALIGN_MIDDLE);//然并卵 cell.setPaddingTop(-2f);//把字垂直居中 cell.setPaddingBottom(8f);//把字垂直居中 cell.addElement(pp); table2.addCell(cell); } PdfPCell c1 = new PdfPCell(); c1.setBorder(0); c1.addElement(table1); PdfPCell c2 = new PdfPCell(); c2.setBorder(0); c2.addElement(table2); table.addCell(c1); table.addCell(c2); document.add(table); document.close(); } catch (DocumentException | FileNotFoundException e) { e.printStackTrace(); } } / * 两种字体显示文字 * * @param cont * @param size * @param color * @return */ private static Paragraph str2ParaByTwoFont(String cont, float size, BaseColor color) { Paragraph res = new Paragraph(); FontSelector selector = new FontSelector(); //非汉字字体颜色 Font f1 = FontFactory.getFont(FontFactory.TIMES_ROMAN, size); f1.setColor(color); //汉字字体颜色 Font f2 = FontFactory.getFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED, size); f2.setColor(color); selector.addFont(f1); selector.addFont(f2); Phrase ph = selector.process(cont); res.add(ph); return res; } / * 两种字体显示文字 * * @param cont * @param size * @param color * @param bold * @return */ private static Paragraph str2ParaByTwoFont(String cont, float size, BaseColor color, int bold) { Paragraph res = new Paragraph(); FontSelector selector = new FontSelector(); //非汉字字体颜色 Font f1 = FontFactory.getFont(FontFactory.TIMES_ROMAN, size); f1.setColor(color); f1.setStyle(bold); //汉字字体颜色 Font f2 = FontFactory.getFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED, size); f2.setColor(color); f2.setStyle(bold); selector.addFont(f1); selector.addFont(f2); Phrase ph = selector.process(cont); res.add(ph); return res; } } 

/ * 多线程生成报告 * @param map 样本及公司对应集合 * @param productMap 样本及产品对应集合 * @param sampleList 样本列表集合 * @param storeDir 报告存储路径 * @param url 源转换的页面url前缀 * @param pyPre python脚本存放的位置 * @param uuid 本地任务唯一标识 * @param storePrefix url参数文件前缀 * @return */ private static int createMul(Map 
  
    map, Map 
   
     productMap, List 
    
      sampleList, String storeDir, String url, String pyPre, String uuid, String storePrefix) { String date = DateUtil.date2Str(new Date()); StringBuilder pathTemp = new StringBuilder(""); String companyId; String productCode; String cmd; int sum = 0; Map 
     
       sampleMap = new LinkedHashMap<>(sampleList.size()); String paraFileName; try { String path; for (String sampleCode : sampleList) { companyId = map.get(sampleCode); productCode = productMap.get(sampleCode); pathTemp.append(storeDir).append(date).append("-").append(uuid).append(File.separator).append(companyId).append(File.separator).append(productCode); path = pathTemp.toString(); pathTemp.setLength(0); File file = new File(path); if (!file.exists()) { file.mkdirs(); } path += File.separator + sampleCode + "-" + productCode + ".pdf"; path = path.replace("\\", "/"); sampleMap.put(sampleCode, path); } paraFileName = storePrefix + DateUtil.date2Str(new Date()) + "-" + EncryUtil.getUUID() + ".txt"; boolean success = writeMapFile(sampleMap, paraFileName); if (success) { log.info("多线程生成报告参数: url: {}, paraFileName: {}", url, paraFileName); cmd = "python " + pyPre + "mul_queue.py -u " + url + " -f " + paraFileName; Process pr = Runtime.getRuntime().exec(cmd); BufferedReader in = new BufferedReader(new InputStreamReader(pr.getInputStream())); String result = null; String line; while ((line = in.readLine()) != null) { result = line; System.out.println("creating: " + result); log.info("creating: {}", result); } if (result != null && result.contains("completed:")) { sum = Integer.parseInt(result.split(":")[1]); } in.close(); pr.waitFor(); } } catch (Exception e) { e.printStackTrace(); log.info("多线程生成报告出错: {} ", e.getMessage()); } return sum; } / * map写进文件里 * // a = {'a': 'hangge', 'b': 'man', 'school': 'wust'} * @param sampleMap * @param paraFileName * @return */ public static boolean writeMapFile(Map 
      
        sampleMap, String paraFileName) { boolean res = false; BufferedWriter bw = null; try { File file = new File(paraFileName); if (!file.exists()) { CommonUtil.createFile(paraFileName); } bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(paraFileName))); if (sampleMap.size() > 0) { bw.write('{'); int index = 0; for (String key : sampleMap.keySet()) { bw.write('\''); bw.write(key); bw.write('\''); bw.write(':'); bw.write('\''); bw.write(sampleMap.get(key)); bw.write('\''); if (index < sampleMap.size() - 1) { bw.write(','); } index++; } bw.write('}'); res = true; } } catch (Exception e) { e.printStackTrace(); }try { if (bw != null) { bw.close(); } } catch (IOException e) { e.printStackTrace(); } return res; } 
       
      
     
    
  

2、python脚本

import threading import ast from Queue import Queue import pdfkit import sys import getopt import codecs class MyThread(threading.Thread): def __init__(self, q): super(MyThread, self).__init__() self.q = q def run(self): while True: url_path = self.q.get() url_in = url_path[0] path = url_path[1] createpdf(url=url_in, path=path) self.q.task_done() def createpdf(url, path): options = { 'margin-top': '0in', 'margin-right': '0in', 'margin-bottom': '0in', 'margin-left': '0in', 'encoding': "UTF-8", 'javascript-delay': '', } num = 0 compete = pdfkit.from_url(url, path, options=options) if compete: num = 1 return num if __name__ == '__main__': parameterList = sys.argv[1:] url = '' file_name = '' opts, args = getopt.getopt(parameterList, "u:f:", ['url=', 'file_name=']) for opt, arg in opts: if opt in ("-u", "--url"): url = arg elif opt in ("-f", "--file_name"): file_name = arg # print('url:', url) # print('file_name:', file_name) sample_map = {} f = codecs.open(filename=file_name, mode="r+", encoding='utf-8') lines = f.readlines() sample_map_string = '' for line in lines: sample_map_string = line break sample_map = ast.literal_eval(sample_map_string) queue = Queue() size = len(sample_map) stable_num = 5 if size > stable_num: size = stable_num for x in range(size): worker = MyThread(queue) worker.daemon = True worker.start() for i in sample_map.keys(): url_path_list = [url + '?sample_sn=%s' % i, sample_map.get(i)] queue.put(url_path_list) queue.join() print "completed:" + bytes(len(sample_map))