JAVA导出PDF并压缩成zip

JAVA导出PDF借助 iText

pom先引入两个jar包

 <dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>${itextpdf.version}</version></dependency><dependency><groupId>com.itextpdf</groupId><artifactId>itext-asian</artifactId><version>${asian.version}</version></dependency>

导出逻辑

@SneakyThrows@Overridepublic  ResponseEntity<InputStreamResource>   exportTradeAckPdfFile(QueryTradeAckDetailReqDto queryTradeAckDetailDto){FileOutputStream fileOutputStream = null;PdfWriter writer=null;File pdfFile=null;Document tradeAckPdfDocument=null;List<File> files = new ArrayList<>();InputStreamResource inputStreamResource=null;String zipFilePath=null;String zipFileName="交易确认单"+ DateUtils.getDateyyyyMMdd()+".zip";try{QueryTradeAckDetailReqBo reqBo= AcctUserInfoReq.Req.getReqBo(queryTradeAckDetailDto);//获取筛选条件内所有客户交易账号List<QueryCustNoRespBo> queryCustNoRespBoList= sAcktradeblotterMapper.queryCustNoListByChannelCode(reqBo);for (QueryCustNoRespBo custNoRespBo:queryCustNoRespBoList) {QueryAccountUserTradeAckDetailReqBo queryAccountUserTradeAckDetailReqBo=new QueryAccountUserTradeAckDetailReqBo();queryAccountUserTradeAckDetailReqBo.setAckStartDate(reqBo.getAckStartDate());queryAccountUserTradeAckDetailReqBo.setAckEndDate(reqBo.getAckEndDate());queryAccountUserTradeAckDetailReqBo.setChannelCodes(reqBo.getChannelCodes());queryAccountUserTradeAckDetailReqBo.setCustNo(custNoRespBo.getCustNo());//单个客户信息QueryAccountUserInfoRespBo queryAccountUserInfoRespBo=sAcktradeblotterMapper.queryAccountUserInfo(custNoRespBo.getCustNo());tradeAckPdfDocument=new Document();//pdfFile=new File(pathProperties.getFilePath());zipFilePath=pathProperties.getFilePath()+"/"+zipFileName;pdfFile=new File(pathProperties.getFilePath()+"/"+queryAccountUserInfoRespBo.getInvName()+custNoRespBo.getCustNo()+".pdf");//输出文件到服务器本地fileOutputStream = new FileOutputStream(pdfFile);writer = PdfWriter.getInstance(tradeAckPdfDocument, fileOutputStream);writer.setViewerPreferences(PdfWriter.PageModeUseThumbs);tradeAckPdfDocument.setPageSize(PageSize.A4);tradeAckPdfDocument.open();tradeAckPdfDocument.add(getPdfTitleParagraph("交易对账单"));//客户交易详情List<QueryAccountUserTradeDetailRespBo> queryAccountUserTradeDetailRespBoList=sAcktradeblotterMapper.queryAccountUserTradeDetail(queryAccountUserTradeAckDetailReqBo);tradeAckPdfDocument=addAccountUserTradeDetailToDocument(queryAccountUserTradeDetailRespBoList,tradeAckPdfDocument,reqBo);Paragraph titleParagraph = new Paragraph("    风险提示", getPdfTableTitleFont());tradeAckPdfDocument.add(titleParagraph);Paragraph firstParagraph = new Paragraph("             在线自助交易单据服务仅供客户查询及打印参考使用,不得伪造、篡改。投资者在本机构持有的基金份额及交易确", getPdfRowCellFont());tradeAckPdfDocument.add(firstParagraph);Paragraph secendParagraph = new Paragraph("    认结果以注册登记机构最终确认的结果为准。", getPdfRowCellFont());tradeAckPdfDocument.add(secendParagraph);              Paragraph fourthParagraph = new Paragraph("    快协助您解决。", getPdfRowCellFont());tradeAckPdfDocument.add(fourthParagraph);files.add(pdfFile);if(tradeAckPdfDocument.isOpen()){tradeAckPdfDocument.close();}writer.close();fileOutputStream.close();}inputStreamResource=addFileToZipPackage(files,zipFilePath);}catch (Exception e) {log.error("导出交易确认PDF表出错",e);}finally {return ResponseEntity.ok().header(HttpHeaders.ACCESS_CONTROL_EXPOSE_HEADERS,"FileName",HttpHeaders.CONTENT_DISPOSITION).header(HttpHeaders.CONTENT_DISPOSITION,"attachment;filename=" + zipFileName).header("FileName", zipFileName).contentType(MediaType.APPLICATION_OCTET_STREAM).body(inputStreamResource);}}private Document addAccountUserTradeDetailToDocument(List<QueryAccountUserTradeDetailRespBo> queryAccountUserTradeDetailRespBoList, Document document,QueryTradeAckDetailReqBo reqBo){try{document.add(getPdfTableTitleParagraph("    交易明细("+reqBo.getAckStartDate()+"-"+reqBo.getAckEndDate()+"申请数据明细)"));final List<String> acctUserInfoTradeDetailColumns =Collections.unmodifiableList( Arrays.asList( new String[]{"确认日期","基金名称","基金代码","业务类型","申请金额(元)","申请份额(份)","确认金额(元)","确认份额(份)","确认净值","手续费  (元)"} ) ) ;PdfPTable pdfTable =getPdfTable(10,496);for (String cellValue:acctUserInfoTradeDetailColumns) {pdfTable.addCell(getPdfHeadCell(cellValue));}for (QueryAccountUserTradeDetailRespBo rowValue:queryAccountUserTradeDetailRespBoList) {pdfTable.addCell(getPdfCell(rowValue.getAckDate()));pdfTable.addCell(getPdfCell(rowValue.getFundName()));pdfTable.addCell(getPdfCell(rowValue.getFundCode()));pdfTable.addCell(getPdfCell(rowValue.getApkType()));pdfTable.addCell(getPdfCenterCell(rowValue.getAppAmt()));pdfTable.addCell(getPdfCenterCell(rowValue.getAppBalance()));pdfTable.addCell(getPdfCenterCell(rowValue.getAckAmt()));pdfTable.addCell(getPdfCenterCell(rowValue.getAckBalance()));pdfTable.addCell(getPdfCenterCell(rowValue.getAckNav()));pdfTable.addCell(getPdfCenterCell(rowValue.getFee()));}document.add(pdfTable);}catch (Exception e){log.error("导出交易确认PDF表附加交易详情出错",e);}finally {return document;}}public static PdfPTable getPdfTable(int rowSize, int tableRowLength) throws Exception {float[] rowWidths=new float[rowSize];for(int i=0;i<rowSize;i++){rowWidths[i]=1f;}PdfPTable pdfTable = new PdfPTable(rowWidths);pdfTable.setLockedWidth(true);pdfTable.setTotalWidth(tableRowLength);pdfTable.setSpacingBefore(10); // 前间距pdfTable.setSpacingAfter(10); // 后间距return pdfTable;}

声明字体和创建一个列

 public static Font getPdfRowCellFont() throws Exception {BaseFont bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);Font fontChinese = new Font(bfChinese, 10, Font.NORMAL);return fontChinese;}public static Paragraph getPdfTableTitleParagraph(String tableTitle) throws Exception {Paragraph titleParagraph=new Paragraph(tableTitle,getPdfTableTitleFont());titleParagraph.setAlignment(Element.ALIGN_LEFT);titleParagraph.setSpacingAfter(10f);titleParagraph.setSpacingBefore(10f);return titleParagraph;}public static Font getPdfTableTitleFont() throws Exception {BaseFont bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);Font fontChinese = new Font(bfChinese, 14, Font.BOLD);return fontChinese;}public static Paragraph getPdfTitleParagraph(String pdfTitle) throws Exception {Paragraph titleParagraph=new Paragraph(pdfTitle,getPdfTitleFont());titleParagraph.setAlignment(Element.ALIGN_CENTER);titleParagraph.setSpacingAfter(10f);titleParagraph.setSpacingBefore(10f);return titleParagraph;}public static Font getPdfTitleFont() throws Exception {BaseFont bfChinese = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);Font fontChinese = new Font(bfChinese, 18, Font.BOLD);return fontChinese;}public static PdfPCell getPdfCell(String cellValue) throws Exception {PdfPCell pdfCell = new PdfPCell();Paragraph paragraph = new Paragraph(cellValue, getPdfRowCellFont());pdfCell.setMinimumHeight(30);//设置表格行高pdfCell.setUseAscender(true);pdfCell.setVerticalAlignment(pdfCell.ALIGN_MIDDLE);pdfCell.setHorizontalAlignment(Element.ALIGN_CENTER);pdfCell.setPhrase(paragraph);return pdfCell;}public static PdfPCell getPdfCenterCell(String cellValue) throws Exception {PdfPCell pdfCell = new PdfPCell();pdfCell.setMinimumHeight(30);//设置表格行高Paragraph paragraph = new Paragraph(cellValue, getPdfRowCellFont());pdfCell.setUseAscender(true);pdfCell.setVerticalAlignment(pdfCell.ALIGN_MIDDLE);pdfCell.setVerticalAlignment(Element.ALIGN_CENTER);pdfCell.setHorizontalAlignment(Element.ALIGN_RIGHT);pdfCell.setPhrase(paragraph);return pdfCell;}public static PdfPCell getPdfHeadCell(String cellValue) throws Exception {PdfPCell pdfCell = new PdfPCell();pdfCell.setMinimumHeight(30);//设置表格行高pdfCell.setUseAscender(true);pdfCell.setHorizontalAlignment(Element.ALIGN_CENTER);pdfCell.setVerticalAlignment(pdfCell.ALIGN_MIDDLE);Paragraph paragraph = new Paragraph(cellValue, getPdfRowCellFont());pdfCell.setPhrase(paragraph);return pdfCell;}

压缩文件

 private InputStreamResource addFileToZipPackage(List<File> pdfFile,String zipFilePath) throws IOException {ZipOutputStream zipOutputStream=null;FileInputStream fileInputStream=null;InputStreamResource resource=null;File zipFile=new File(zipFilePath);if(zipFile.exists()){zipFile.delete();}else {zipFile.createNewFile();}FileOutputStream fileOutputStream = new FileOutputStream(zipFile);zipOutputStream = new ZipOutputStream(fileOutputStream);for(File file:pdfFile){byte[] buf = new byte[BUFFER_SIZE];zipOutputStream.putNextEntry(new ZipEntry(file.getName()));int len;fileInputStream = new FileInputStream(file);while ((len = fileInputStream.read(buf)) != -1) {zipOutputStream.write(buf, 0, len);}fileInputStream.close();file.delete();}zipOutputStream.close();//从服务器读取文件 流传给前端fileInputStream = new FileInputStream(zipFile) ;resource = new InputStreamResource(fileInputStream);fileOutputStream.close();return resource;}

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