java写入pdf文件图片 java 写pdf

　　最近项目需要根据客户填写的信息，依照模板生成一个pdf文件。

　　要是格式是固定的类型，可以使用Adobe Acrobat DC将模板的pdf文件转化成可以编辑的类型，然后根据编辑时候取的变量名字一一将数据插入。

首先需要导入itextpdf的jar包。

// 模板路径 
 String templatePath = "E:/test.pdf"; 
 // 生成的新文件路径 
 String newPDFPath = "E:/ceshi.pdf"; 
 PdfReader reader; 
 FileOutputStream out; 
 ByteArrayOutputStream bos; 
 PdfStamper stamper; 
 try { 
 BaseFont bf = BaseFont.createFont("C:/Windows/Fonts/SIMYOU.TTF",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED); //设置中文字体
 Font font = new Font(bf, 12, Font.NORMAL);
 out = new FileOutputStream(newPDFPath);// 输出流 
 reader = new PdfReader(templatePath);// 读取pdf模板 
 bos = new ByteArrayOutputStream(); 
 stamper = new PdfStamper(reader, bos); 
 AcroFields form = stamper.getAcroFields(); //获取表单

 String[] str = { "2017-05-10", "12345678", "LC123456", "2017-05-10", "深圳XXXXX有限公司", "4567890132","深圳市XXXX室", "34267687","123344","深圳市XXXXX室"}; 
 int i = 0; 
 java.util.Iterator<String> it = form.getFields().keySet().iterator();//赋值
 while (it.hasNext()) { 
 String name = it.next().toString(); 
 form.setFieldProperty(name, "textfont", bf, null);
 form.setField(name, str[i++]); 
 } 
 stamper.setFormFlattening(true);// 如果为false那么生成的PDF文件还能编辑，一定要设为true 
 stamper.close(); 
 Document doc = new Document(); 
 PdfCopy copy = new PdfCopy(doc, out); 
 doc.open(); 
 PdfImportedPage importPage = copy.getImportedPage(new PdfReader(bos.toByteArray()), 1); 
 copy.addPage(importPage); 
 doc.close(); 
 } catch (IOException e) { 
 e.printStackTrace(); 
 } catch (DocumentException e) { 
 e.printStackTrace();
 }

 

　　但是因为要根据用户输入的信息，动态的生成一个对应的表格。所以最后就直接按照模板生成了一个新的pdf。

　　这个主要就是使用段落、表格进行布局，中间拼接一些数据就OK了。（最后做出来的文件不是很好看，还是要在字体和布局上进行修改）

//实例化文档对象
 Document document = new Document(PageSize.A4, 50, 50, 50, 50);
 //设置中文字体
 BaseFont bfChinese =
 BaseFont.createFont("C:/Windows/Fonts/simhei.ttf",BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); //字体
 Font titleChinese = new Font(bfChinese, 18, Font.BOLD);
 Font secondtitleChinese = new Font(bfChinese, 14, Font.BOLD);
 Font fontChinese = new Font(bfChinese, 12, Font.NORMAL);
 //创建PdfWriter对象
 PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream("C:\\ITextTest.pdf"));
 document.open();
 Paragraph title=new Paragraph("主标题",titleChinese);
 title.setAlignment(Element.ALIGN_CENTER);
 Paragraph title2=new Paragraph("（副标题）",fontChinese);
 title2.setAlignment(Element.ALIGN_CENTER);
 //设置段落间距
 title2.setSpacingAfter(30);
 document.add(title);
 document.add(title2);
 String str="正文一类的东西。。。。。。。。";
 Paragraph content=new Paragraph(str,fontChinese);
 //首行缩进
 content.setFirstLineIndent(20);
 //设置行间距
 content.setLeading(20);
 content.setSpacingAfter(30);
 document.add(content);
 Paragraph title3=new Paragraph("供应商应收账款转让清单",secondtitleChinese);
 title3.setAlignment(Element.ALIGN_CENTER);
 document.add(title3);
 //表格编号和日期
 Paragraph id=new Paragraph();
 Chunk chunk=new Chunk(" 编号：ABCDEFGH",fontChinese);
 Chunk chunk2=new Chunk(" 日期：2017年6月29日",fontChinese);
 id.add(chunk);
 id.add(chunk2);
 id.setSpacingAfter(5);
 document.add(id);
 // 建立一个pdf表格
 float[] widths = {25f, 30f, 35f, 25f, 25f, 25f, 30f, 30f};
 PdfPTable table = new PdfPTable(widths);
 PdfPCell cell = null;
 //第一行
 cell = new PdfPCell(new Paragraph("供应商",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 cell = new PdfPCell(new Paragraph("发票号",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 cell = new PdfPCell(new Paragraph("币别",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 cell = new PdfPCell(new Paragraph("发票日",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 cell = new PdfPCell(new Paragraph("发票票面金额",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 cell = new PdfPCell(new Paragraph("供应商应收账款金额（承诺付款金额）",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 cell = new PdfPCell(new Paragraph("承诺付款日",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 cell = new PdfPCell(new Paragraph("备注",fontChinese));
 cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
 table.addCell(cell);
 //往表格内部填充数据，必须填充为列数的整数倍的单元格，没有则填充空
 String[] danju=new String[]{"1","2","3","4","5","6","7","8"}; for (int i = 0; i <danju.length; i++) {
 table.addCell(new Paragraph(danju[i],fontChinese));
 }
 table.addCell(new Paragraph("合计",fontChinese));
 table.addCell("");
 table.addCell("");
 table.addCell("");
 table.addCell("");
 table.addCell("");
 table.addCell("");
 table.addCell("");
 document.add(table);
 //签名
 PdfPTable table2=new PdfPTable(2);
 table2.setSpacingBefore(30);
 PdfPCell sgin1 = new PdfPCell(new Paragraph("XX企业电子签名:",fontChinese));
 sgin1.setBorder(0);
 PdfPCell sgin2 = new PdfPCell(new Paragraph("XX平台电子签名:",fontChinese));
 sgin2.setBorder(0);
 table2.addCell(sgin1);
 table2.addCell(sgin2);
 PdfPCell image=new PdfPCell(new Paragraph("签名区域",fontChinese));
 image.setFixedHeight(50);
 image.setBorder(0);
 table2.addCell(image);
 table2.addCell(image);
 Chunk underline = new Chunk("2017");
 underline.setUnderline(0.1f, -1f);
 Chunk underline2 = new Chunk("6");
 underline2.setUnderline(0.1f, -1f);
 Chunk underline3 = new Chunk("29");
 underline3.setUnderline(0.1f, -1f);
 Paragraph date=new Paragraph();
 date.add(underline);
 date.add(new Chunk("年",fontChinese));
 date.add(underline2);
 date.add(new Chunk("月",fontChinese));
 date.add(underline3);
 date.add(new Chunk("日",fontChinese));
 PdfPCell date1 = new PdfPCell(date);
 date1.setBorder(0);
 date1.setHorizontalAlignment(Element.ALIGN_CENTER);
 table2.addCell(date1);
 table2.addCell(date1);
 document.add(table2);
 document.close();

　　还是觉得这个方法不太好，有多少个模板就要写多少个，不能直接利用模板。