JAVA导出复杂PDF表格（带水印），返回存储路径 |
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JAVA导出复杂PDF表格（带水印），返回存储路径
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1.pom添加 com.itextpdf itextpdf 5.5.9 com.itextpdf itext-asian 5.2.02.PDF样例图
一共包含三个CLASS PDFDemo.java（Demo可直接使用）、PDFExport.java（导出封装）、PDFPageEvent.java（导出水印） PDFDemo.java package com.dhproject.utils.pdf; import com.itextpdf.text.Document; import com.itextpdf.text.DocumentException; import com.itextpdf.text.Rectangle; import com.itextpdf.text.pdf.*; import javax.servlet.http.HttpServletResponse; import java.io.*; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; public class PDFDemo { public static void main(String[] args) { demoFile("这个是水印"); } /** * 文件生成主方法 * @param aligned * @return */ public static String demoFile(String aligned){ // 上传文件路径 String fileName = PDFExport.extractFilename(); String absPath = PDFExport.getAbsoluteFile(fileName).getAbsolutePath(); ByteArrayOutputStream bos = new ByteArrayOutputStream(); InputStream inputStream; PdfReader reader; PdfStamper ps; try { inputStream = PDFExport.getTpl().getInputStream(); reader = new PdfReader(inputStream); ps = new PdfStamper(reader, bos); ps.setFormFlattening(true); ps.close();//必须在这里进行close //*******************填充编辑好后的pdf************** reader = new PdfReader(bos.toByteArray()); Rectangle pageSize = reader.getPageSize(1); Document document = new Document(pageSize); PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream(absPath)); writer.setPageEvent(new PDFPageEvent(aligned)); // 打开文档 document.open(); PdfContentByte cbUnder = writer.getDirectContentUnder(); PdfImportedPage pageTemplate = writer.getImportedPage(reader, 1); cbUnder.addTemplate(pageTemplate, 0, 0); //添加间隙,这里为进行了一个封装，因为这个模板第一页只有一些title啥的， //重开一页太浪费，只需要确定表格要在什么位置生成，添加一个间隙就可以了 //这里进行数据填充 demoData(writer, document); // low level PdfContentByte cb = writer.getDirectContent(); cb.fill(); cb.sanityCheck(); document.close(); inputStream.close(); reader.close(); ps.close(); return PDFExport.getPathFileName(fileName); } catch (IOException e) { e.printStackTrace(); return ""; } catch (DocumentException e) { e.printStackTrace(); return ""; } } /** * * @param writer * @param document */ public static void demoData(PdfWriter writer, Document document) throws IOException, DocumentException { //新创建一个7列的表格 PdfPTable table = PDFExport.getTable(writer,new float[]{25,30,30,30,30,30,30}); //表头信息 //有7列数据将行全部合并 并且隐藏边框 PDFExport.setRowData(table,1,7,"XXXX表",13); //有12行数据将第一列全部合并 PDFExport.setRowData(table,12,1,"合并列明"); PDFExport.setRowData(table,1,2,"XXXX表"); PDFExport.setRowData(table,1,4,"-"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1, "-"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,4,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,4,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,4,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,4,"-"); PDFExport.setRowData(table,4,1,"时 间"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,1,2,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,8,1,"时 间"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1, "-"); PDFExport.setRowData(table,1,1,"时 间"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,1,"-"); PDFExport.setRowData(table,1,3,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,1,3,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,1,3,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,1,3,"时 间"); PDFExport.setRowData(table,1,3,"-"); PDFExport.setRowData(table,1,3,"时 间"); PDFExport.setRowData(table,1,3,"-"); document.add(table); } } PDFExport.java（导出封装） package com.dhproject.utils.pdf; import com.dhproject.common.config.ProjectConfig; import com.dhproject.common.utils.DateUtils; import com.dhproject.common.utils.StringUtils; import com.dhproject.common.utils.file.FileUploadUtils; import com.dhproject.common.utils.uuid.Seq; import com.itextpdf.text.*; import com.itextpdf.text.pdf.*; import org.springframework.core.io.ClassPathResource; import java.io.*; /** * 模板第一页不占满，生成表格 */ public class PDFExport { /** * 获取上传根目录 * @return */ public static final String getBaseDir(){ return ProjectConfig.getDownloadPath(); } /** * 获取模板 * @return */ public static final ClassPathResource getTpl(){ return new ClassPathResource("static/public/pdf/tpl.pdf"); } /** * 编码文件名 * @return */ public static final String extractFilename() { return StringUtils.format("pdf/{}/{}.{}", DateUtils.datePath(), Seq.getId(Seq.uploadSeqType),"pdf"); } /** * 获取URL * @param fileName * @return */ public static final String getPathFileName(String fileName) throws IOException { return FileUploadUtils.getPathFileName(getBaseDir(), fileName); } /** * 获取下载绝对路径 * @param fileName * @return */ public static final java.io.File getAbsoluteFile(String fileName) { java.io.File desc = new java.io.File(getBaseDir() + java.io.File.separator + fileName); if (!desc.exists()) { if (!desc.getParentFile().exists()) { desc.getParentFile().mkdirs(); } try { desc.createNewFile(); } catch (IOException e) { e.printStackTrace(); } } return desc; } /** * 单行数据写入 * //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 * @param table * @param setRowspan * @param setColspan * @param text * @param disableBorderSide * @throws IOException * @throws DocumentException */ public static void setRowData(PdfPTable table,int setRowspan,int setColspan,String text,int disableBorderSide) throws IOException, DocumentException { //定义数据的字体 BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED); Font textFont = new Font(baseFont, 10, Font.NORMAL); PdfPCell heandCell = new PdfPCell(); heandCell.setRowspan(setRowspan); heandCell.setColspan(setColspan); heandCell.setMinimumHeight(30); heandCell.setVerticalAlignment(Element.ALIGN_MIDDLE); heandCell.setHorizontalAlignment(Element.ALIGN_CENTER); heandCell.setPhrase(new Phrase(text, textFont)); if(disableBorderSide>0){ heandCell.disableBorderSide(disableBorderSide);//隐藏边框 } table.addCell(heandCell); } /** * 单行数据写入 * @param table * @param setRowspan * @param setColspan * @param text * @throws IOException * @throws DocumentException */ public static void setRowData(PdfPTable table,int setRowspan,int setColspan,String text) throws IOException, DocumentException { setRowData(table,setRowspan,setColspan,text,-1); } /** * 生成表格 * @param writer * @param colls * @return */ public static PdfPTable getTable(PdfWriter writer,float[] colls){ PdfPTable table = new PdfPTable(colls); table.setTotalWidth(520); table.setPaddingTop(0); table.setLockedWidth(true); table.setHorizontalAlignment(Element.ALIGN_CENTER);//居中 table.writeSelectedRows(0, -1, 500, 800, writer.getDirectContentUnder()); return table; } } PDFPageEvent.java（导出水印） package com.dhproject.utils.pdf; import com.itextpdf.text.*; import com.itextpdf.text.pdf.*; import java.io.IOException; public class PDFPageEvent extends PdfPageEventHelper { //页眉 public String header = ""; //文档字体大小，页脚页眉最好和文本大小一致 public int presentFontSize = 10; //文档页面大小，最好前面传入，否则默认为A4纸张 public Rectangle pageSize = PageSize.A4; // 模板 public PdfTemplate total; // 基础字体对象 public BaseFont bf = null; // 利用基础字体生成的字体对象，一般用于生成中文文字 public Font fontDetail = null; //水印文字 public String aligned = ""; /** *Creates a new instance of PdfReportM1HeaderFooter 无参构造方法. */ public PDFPageEvent() { } /** * Creates a new instance of PdfReportM1HeaderFooter 无参构造方法. * @param aligned */ public PDFPageEvent(String aligned) { this.aligned = aligned; } /** * * Creates a new instance of PdfReportM1HeaderFooter 构造方法. * @param yeMei * @param presentFontSize 数据体字体大小 * @param pageSize 页面文档大小，A4，A5，A6横转翻转等Rectangle对象 */ public PDFPageEvent(String yeMei, int presentFontSize, Rectangle pageSize) { this.header = yeMei; this.presentFontSize = presentFontSize; this.pageSize = pageSize; } /** * Creates a new instance of PdfReportM1HeaderFooter 构造方法. * @param presentFontSize 数据体字体大小 * @param pageSize 页面文档大小，A4，A5，A6横转翻转等Rectangle对象 */ public PDFPageEvent( int presentFontSize, Rectangle pageSize) { this.presentFontSize = presentFontSize; this.pageSize = pageSize; } /** * TODO 文档打开时创建模板 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onOpenDocument(com.itextpdf.text.pdf.PdfWriter,com.itextpdf.text.Document) * @param writer * @param document */ public void onOpenDocument(PdfWriter writer, Document document) { total = writer.getDirectContent().createTemplate(50, 50);// 共 页 的矩形的长宽高 } /** * TODO 关闭每页的时候，写入页眉，写入'第几页共'这几个字。 * @see com.itextpdf.text.pdf.PdfPageEventHelper#onEndPage(com.itextpdf.text.pdf.PdfWriter,com.itextpdf.text.Document) * @param writer * @param document */ public void onEndPage(PdfWriter writer, Document document) { this.addPage(writer, document); //加水印 this.addWatermark(writer); } /** * 加分页 * @param writer * @param document */ public void addPage(PdfWriter writer, Document document){ //设置分页页眉页脚字体 try { if (bf == null) { bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", false); } if (fontDetail == null) { fontDetail = new Font(bf, presentFontSize, Font.NORMAL);// 数据体字体 } } catch (DocumentException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } // 1.写入页眉 // ColumnText.showTextAligned(writer.getDirectContent(),Element.ALIGN_LEFT, new Phrase(header, fontDetail),document.left(), document.top() + 20, 0); // 2.写入前半部分的 第 X页/共 int pageS = writer.getPageNumber(); String foot1 = "第 " + pageS + " 页 /共"; //String foot1 = pageS +"/"; Phrase footer = new Phrase(foot1, fontDetail); // 3.计算前半部分的foot1的长度，后面好定位最后一部分的'Y页'这俩字的x轴坐标，字体长度也要计算进去 = len float len = bf.getWidthPoint(foot1, presentFontSize); // 4.拿到当前的PdfContentByte PdfContentByte cb = writer.getDirectContent(); // 5.写入页脚1，x轴就是(右margin+左margin + right() -left()- len)/2.0F // 再给偏移20F适合人类视觉感受，否则肉眼看上去就太偏左了 // ,y轴就是底边界-20,否则就贴边重叠到数据体里了就不是页脚了；注意Y轴是从下往上累加的，最上方的Top值是大于Bottom好几百开外的。 ColumnText.showTextAligned(cb, Element.ALIGN_CENTER, footer, (document.rightMargin() + document.right() + document.leftMargin() - document.left() - len) / 2.0F , document.bottom() - 20, 0); // 6.写入页脚2的模板（就是页脚的Y页这俩字）添加到文档中，计算模板的和Y轴,X=(右边界-左边界 - 前半部分的len值)/2.0F + // len ， y 轴和之前的保持一致，底边界-20 cb.addTemplate(total, (document.rightMargin() + document.right() + document.leftMargin() - document.left()) / 2.0F , document.bottom() - 20); // 调节模版显示的位置 } /** * 加水印 * @param writer */ public void addWatermark(PdfWriter writer) { // 水印图片 /* Image image; try { image = Image.getInstance("./web/images/001.jpg"); PdfContentByte content = writer.getDirectContentUnder(); content.beginText(); // 开始写入水印 for(int k=0;k |
3.PDF CLASS【本文地址】