下载java生成PDF-白红宇

下载java生成PDF
阅读量：4672 次
发布时间：2019-06-09
本文共 30310 字，大约阅读时间需要 101 分钟。
/**     * 下载打印PDF     * @param request     * @param response     * @throws ServletException     * @throws IOException     * @throws DocumentException      * @throws com.itextpdf.text.DocumentException      * @throws com.itextpdf.text.DocumentException      */    @RequestMapping(value="/downPrintPDF")    public void downPrintPDF(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException, DocumentException, com.itextpdf.text.DocumentException {         SessionUserPojo user=CommonController.getUserInfo(request);        // 禁止数据缓存。        response.setHeader("Pragma", "no-cache");        response.setHeader("Cache-Control", "no-cache");        response.setDateHeader("Expires", 0);        // 流程id        String procInstanceId=request.getParameter("procInstanceId");        request.setCharacterEncoding("UTF-8"); //        boolean checkPermissions=this.examTaskService.checkPermissions(user.getLoginCode(), procInstanceId);        ExternalCuringParam taskExt=(ExternalCuringParam)this.examTaskService.getTaskDetail(procInstanceId,user);        //查询附件列表//                List
     
       attachmentList=this.examTaskService.getFileListByProcessInstanceId(Pid);        //查询备注列表        List
      
        tontentList=this.examTaskService.getListByPid(procInstanceId);                String filePath = request.getSession().getServletContext().getRealPath(STATIC_FILE_PATH);        File file_floder =new File(filePath);            //如果文件夹不存在则创建            if  (!file_floder .exists()  && !file_floder .isDirectory()) {             file_floder .mkdir();            }         File file = null;         //创建file对象         if(ProcessType.RCBXSQ.getType().equals(taskExt.getProcInstanceType())){            file = createPrintRcbxPdf(filePath+"\\MOLBASE_办公管理系统_"+user.getLoginCode().trim()+".pdf",taskExt,tontentList,user);        }else if(ProcessType.CCBXSQ.getType().equals(taskExt.getProcInstanceType())){            file = createPrintCcbxPdf(filePath+"\\MOLBASE_办公管理系统_"+user.getLoginCode().trim()+".pdf",taskExt,tontentList,user);        }         //设置response的编码方式          response.setContentType("application/x-msdownload");         // 文件尺寸          response.setContentLength((int)file.length());          String filename = new String(file.getName().getBytes("GB2312"), "ISO_8859_1");         response.setHeader("Content-Disposition","attachment;filename=" + filename);          response.setHeader("Pragma","no-cache");         OutputStream myout = response.getOutputStream();          if(file.exists()){             FileInputStream fis = new FileInputStream(file);              BufferedInputStream buff = new BufferedInputStream(fis);              byte [] b = new byte[1024];             long k = 0;             while(k < file.length()){                  int j = buff.read(b,0,1024);                  k += j;                  myout.write(b,0,j);                  myout.flush();              }              buff.close();         }         myout.close();    }        @SuppressWarnings("static-access")    private File createPrintCcbxPdf(String filepath,ExternalCuringParam taskExt,List
       
         tontentList,SessionUserPojo user) throws DocumentException, com.itextpdf.text.DocumentException, IOException{        BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);        Font headfont = new Font(bfChinese, 13, Font.BOLD);// 设置字体大小//        Font keyfont = new Font(bfChinese, 10, Font.BOLD);// 设置字体大小        Font textfont = new Font(bfChinese, 10, Font.NORMAL);// 设置字体大小//        Font textfont_underline = new Font(bfChinese, 10, Font.UNDERLINE);// 设置字体大小//        Font textfont1 = new Font(bfChinese, 12, Font.ITALIC);// 设置字体大小        // 1.新建document对象        // 第一个参数是页面大小。接下来的参数分别是左、右、上和下页边距。        //Document document = new Document(PageSize.A4, 50, 50, 50, 50);        com.itextpdf.text.Document document = new com.itextpdf.text.Document();        //add Chinese font        //BaseFont bfChinese=BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);         //Font headfont=new Font(bfChinese,10,Font.BOLD);         //Font keyfont=new Font(bfChinese,8,Font.BOLD);         //Font textfont=new Font(bfChinese,8,Font.NORMAL);        // 2.建立一个书写器(Writer)与document对象关联，通过书写器(Writer)可以将文档写入到磁盘中。        // 创建 PdfWriter 对象 第一个参数是对文档对象的引用，第二个参数是文件的实际名称，在该名称中还会给出其输出路径。//        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("D:\\MOLBASE 办公管理系统_"+user.getLoginCode()+".pdf"));        //Create Writer associated with document                File file = new File(filepath);        if(file.exists()){            file.delete();        }        file.createNewFile();                com.itextpdf.text.pdf.PdfWriter writer = com.itextpdf.text.pdf.PdfWriter.getInstance(document, new FileOutputStream(file));        writer.setViewerPreferences(writer.HideToolbar);        // 3.打开文档        document.open();        // 4.向文档中添加内容        // 标题//        document.addTitle("Hello mingri example");        // 作者//        document.addAuthor("wolf");        // 主题//        document.addSubject("This exam/ple explains how to add metadata.");//        document.addKeywords("iText, Hello mingri");//        document.addCreator("My program using iText");        // document.newPage();        // 向文档中添加内容//        document.add(new Paragraph("\n"));        // 通过 com.lowagie.text.Paragraph 来添加文本。可以用文本及其默认的字体、颜色、大小等等设置来创建一个默认段落//        document.add(new Paragraph("First page of the document."));//        document.add(new Paragraph("Some more text on the  first page with different color and font type.", FontFactory.getFont(FontFactory.COURIER, 14, Font.BOLD)));        //        document.add(new Paragraph("Some more text on the first page with different color and font type.", FontFactory.getFont(FontFactory.defaultEncoding, 10, Font.BOLD)));//        document.add(new Paragraph("xx租赁有限公司\n\n\n", textfont));        Paragraph title = new Paragraph(taskExt.getProcInstanceName()+"\n", headfont);        title.setAlignment(Element.ALIGN_CENTER);        document.add(title);        document.add(new Paragraph("\n",new Font(bfChinese, 8, Font.NORMAL)));        // 增加表格        PdfPTable table1 = createTable(new float[]{15,35,15,35}, true, null);        table1.completeRow();        table1.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table1.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table1.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table1.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table1.addCell(createCell("发起人", textfont, Element.ALIGN_CENTER, 1, 1, true));        table1.addCell(createCell(taskExt.getOwnerName()+"/"+taskExt.getDeptName()+"_"+taskExt.getStartTime().split(" ")[0], textfont, Element.ALIGN_CENTER, 1, 1, true));        table1.addCell(createCell("流程编号", textfont, Element.ALIGN_CENTER, 1, 1, true));        table1.addCell(createCell(taskExt.getProcInstanceCode(), textfont, Element.ALIGN_CENTER, 1, 1, true));        document.add(table1);        document.add(new Paragraph("\n",new Font(bfChinese, 4, Font.NORMAL)));                PdfPTable table1_1 = createTable(new float[]{15,85}, true, null);        table1_1.completeRow();        table1_1.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table1_1.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table1_1.addCell(createCell("备注", textfont, Element.ALIGN_CENTER, 1, 1, true));        table1_1.addCell(createCell(taskExt.getStartContent(), textfont, Element.ALIGN_LEFT, 1, 1, true));        document.add(table1_1);        document.add(new Paragraph("\n",new Font(bfChinese, 4, Font.NORMAL)));                String process_param = taskExt.getProcess_param();        JSONObject obj=JSONObject.parseObject(process_param);                PdfPTable table2 = createTable(new float[]{15,35,15,35}, true, null);        table2.completeRow();        table2.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table2.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table2.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table2.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table2.addCell(createCell("报销人", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell(obj.getString("expense_person_name"), textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("报销人部门", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell(obj.getString("expense_person_dept_name"), textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("费用公司", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell(obj.getString("expense_company"), textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("费用部门", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell(obj.getString("expense_dept_name"), textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("出发日期", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell(obj.getString("startOutDate"), textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("返回日期", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell(obj.getString("endOutDate"), textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("费用合计", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell(obj.getString("expense_money_total"), textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, true));        table2.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, true));        document.add(table2);        document.add(new Paragraph("\n",new Font(bfChinese, 4, Font.NORMAL)));                // 增加表格        PdfPTable table = createTable(new float[]{14,10,10,22,10,34}, true, null);        table.completeRow();        //出差城市    出差天数    单据数    费用项目    单据金额    费用说明        table.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table.addCell(createCell("", textfont, Element.ALIGN_CENTER, 1, 1, false));        table.addCell(createCell("出差城市", textfont, Element.ALIGN_CENTER, 1, 1, true));        table.addCell(createCell("出差天数", textfont, Element.ALIGN_CENTER, 1, 1, true));        table.addCell(createCell("单据数", textfont, Element.ALIGN_CENTER, 1, 1, true));        table.addCell(createCell("费用项目", textfont, Element.ALIGN_CENTER, 1, 1, true));        table.addCell(createCell("单据金额", textfont, Element.ALIGN_CENTER, 1, 1, true));        table.addCell(createCell("费用说明", textfont, Element.ALIGN_CENTER, 1, 1, true));                JSONArray arr1=obj.getJSONArray("trip_expense_message");        Iterator