iText导出pdf

需要的依赖

<dependency>
			<groupId>com.itextpdf.tool</groupId>
			<artifactId>xmlworker</artifactId>
			<version>5.5.6</version>
		</dependency>
		<dependency>
			<groupId>com.itextpdf</groupId>
			<artifactId>itextpdf</artifactId>
			<version>5.5.6</version>
		</dependency>

调用

@RequestMapping(value = "/xxx{id}")
	void downpdfkeng(Model model,HttpServletResponse response,@PathVariable("id") String id ,HttpServletRequest req) {
		response.setHeader("X-Frame-Options", "SAMEORIGIN");
	
	获取数据 tbldievdto（  需要导出的数据对象 ）
	
		Document document = new Document(PageSize.A4, 50, 50, 50, 50);
		
	
		  
		   
		    try {
			 File rfile = new File("e:/pdf");
			    if(!rfile.exists()){
				rfile.mkdirs();
			    }
			    String pdfPath = "e:/pdf/0-6岁疑似残疾儿童诊断评估书.pdf";
			PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream(pdfPath));
			 document.open();
			 
			 
			  BaseFont hfHei = BaseFont.createFont("c:\\Windows\\fonts\\SIMHEI.TTF",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
				Font font = new Font(hfHei,22);
				Font font1 = new Font(hfHei,14);
				String title = "xxxxx";
				//设置标题
				Paragraph paragraph = new Paragraph(title,font);
				 paragraph.setAlignment(Element.ALIGN_CENTER);
				document.add(paragraph);
				//拼接内容
				PdfPTable table1=pdfpjie(tbldievdto);
				 document.add(table1);
				    document.close();
			 
		    } catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		    } catch (DocumentException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		    } catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		    }
		   
		    File file = new File("e:/pdf/xxxxx.pdf"); 
		        byte[] buf = new byte[1024 * 1024 * 10];  
		        int len = 0; 
		        ServletOutputStream ut = null;
		        BufferedInputStream br = null;  
		        response.reset();  
		   
		        response.setHeader("Pragma", "No-cache");  
		        response.setHeader("Cache-Control", "must-revalidate, no-transform");  
		        response.setDateHeader("Expires", 0L);
		        
		        String userAgent = req.getHeader("User-Agent"); 
//		        boolean ie =userAgent.toLowerCase().indexOf("msie") != -1;
		        boolean ie = (userAgent.toLowerCase().indexOf("msie") > -1 || userAgent.toLowerCase().indexOf("rv:11") > -1);
		        boolean isIE = (userAgent != null) && ie; 
		         
		        String displayFilename = file.getName();
		        response.setContentType("application/x-download"); 
		        if (isIE) {  
		            try {
		                displayFilename = URLEncoder.encode(displayFilename, "UTF-8");
		            } catch (UnsupportedEncodingException e) {
		                // TODO Auto-generated catch block
		                e.printStackTrace();
		            }  
		            
		            response.setHeader("Content-Disposition", "attachment;filename=\"" + displayFilename + "\"");  
		        } else {  
		            try {
		                displayFilename = new String(displayFilename.getBytes("UTF-8"), "ISO8859-1");
		            } catch (UnsupportedEncodingException e) {
		                // TODO Auto-generated catch block
		                e.printStackTrace();
		            }  
		            response.setHeader("Content-Disposition", "attachment;filename=" + displayFilename);  
		        } 
		        try {
		            br = new BufferedInputStream(new FileInputStream(file));
		            ut = response.getOutputStream();  
		            while ((len = br.read(buf)) != -1)  
		                ut.write(buf, 0, len);
		        } catch (FileNotFoundException e) {
		            // TODO Auto-generated catch block
		            e.printStackTrace();
		        } catch (IOException e) {
		            // TODO Auto-generated catch block
		            e.printStackTrace();
		        }         
		        
		    
	}
	
	  public  PdfPTable pdfpjie(TblDiagnosticEvalDto tbldievdto) throws DocumentException, IOException{
		BaseFont hfHei = BaseFont.createFont("c:\\Windows\\fonts\\SIMHEI.TTF",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
		Font font = new Font(hfHei,22);
		Font font1 = new Font(hfHei,12);
	
		
		// 3列的表.
	        PdfPTable table = new PdfPTable(7); 
	        table.setWidthPercentage(100); // 宽度100%填充
	        table.setSpacingBefore(10f); // 前间距
	        table.setSpacingAfter(10f); // 后间距

	        List<PdfPRow> listRow = table.getRows();
	        //设置列宽
	        float[] columnWidths = { 1f, 1f, 1f, 1f, 1f, 1f ,1f };
	        table.setWidths(columnWidths);
	        
	        //行1
	        PdfPCell cells1[]= new PdfPCell[7];
	        PdfPRow row1 = new PdfPRow(cells1);
	       
	        //单元格
	        cells1[0] = new PdfPCell(new Paragraph("姓名",font1));//单元格内容

	        cells1[1] = new PdfPCell(new Paragraph(tbldievdto.getChildName(),font1));
	        cells1[1].setColspan(2);//合并横向单元格
	        cells1[3] = new PdfPCell(new Paragraph("xxx",font1));
	        cells1[4] = new PdfPCell(new Paragraph(tbldievdto.getChildIdno()));
	        cells1[4].setColspan(3);
	        //行2
	        PdfPCell cells2[]= new PdfPCell[7];
	        PdfPRow row2 = new PdfPRow(cells2);
	        cells2[0] = new PdfPCell(new Paragraph("xx",font1));//单元格内容

	        cells2[1] = new PdfPCell(new Paragraph(Sex,font1));
	        cells2[1].setColspan(2);
	        cells2[3] = new PdfPCell(new Paragraph("xx",font1));
	        cells2[4] = new PdfPCell(new Paragraph(DateToStr(tbldievdto.getChildBirthday())));
	        cells2[4].setColspan(3);
	        
	      //行3
	        PdfPCell cells3[]= new PdfPCell[7];
	        PdfPRow row3 = new PdfPRow(cells3);
	        cells3[0] = new PdfPCell(new Paragraph("xx",font1));//单元格内容

	        cells3[1] = new PdfPCell(new Paragraph(tbldievdto.getEvalutionMethod(),font1));
	        cells3[1].setColspan(6);
	        
	        
	        //行4
	        PdfPCell cells4[]= new PdfPCell[7];
	        PdfPRow row4 = new PdfPRow(cells4);
	        cells4[0] = new PdfPCell(new Paragraph("xxx",font1));//单元格内容
	        cells4[0].setRowspan(2); //合并纵向单元格
	        cells4[1] = new PdfPCell(new Paragraph(tbldievdto.getEvalutionResult(),font1));
	        cells4[1].setColspan(6);
	        
	        //行5
	        PdfPCell cells5[]= new PdfPCell[7];
	        PdfPRow row5 = new PdfPRow(cells5);
	        cells5[1] = new PdfPCell(new Paragraph("xxx",font1));//单元格内容
	        cells5[1].setColspan(2);
	        cells5[3] = new PdfPCell(new Paragraph(Type,font1));
	        cells5[3].setColspan(4);
	       
	        
	        //行6
	        PdfPCell cells6[]= new PdfPCell[7];
	        PdfPRow row6 = new PdfPRow(cells6);
	        cells6[0] = new PdfPCell(new Paragraph("xxx",font1));//单元格内容
	        cells6[1] = new PdfPCell(new Paragraph(tbldievdto.get(),font1));
	        cells6[1].setColspan(6);
	        
	        //行7
	        PdfPCell cells7[]= new PdfPCell[7];
	        PdfPRow row7 = new PdfPRow(cells7);
	        cells7[0] = new PdfPCell(new Paragraph("xxx",font1));
	        cells7[1] = new PdfPCell(new Paragraph(truntrainingProgram,font1));
	        cells7[1].setColspan(6);
	       
	        
	        //行8
	        PdfPCell cells8[]= new PdfPCell[7];
	        PdfPRow row8 = new PdfPRow(cells8);
	        cells8[0] = new PdfPCell(new Paragraph("xxx",font1));
	        cells8[1] = new PdfPCell(new Paragraph(tbldievdto.get(),font1));
	        cells8[1].setColspan(2);
	        cells8[3] = new PdfPCell(new Paragraph("评估单位",font1));
	        cells8[4] = new PdfPCell(new Paragraph(tbldievdto.get(),font1));
	        cells8[4].setColspan(3);
	        
	      //行9
	        PdfPCell cells9[]= new PdfPCell[7];
	        PdfPRow row9 = new PdfPRow(cells9);
	        cells9[0] = new PdfPCell(new Paragraph("xxx",font1));
	        cells9[1] = new PdfPCell(new Paragraph(DateToStr(tbldievdto.getUpdatetime()),font1));
	        cells9[1].setColspan(6);
	      
	    
	        //把第一行添加到集合
		      listRow.add(row1);
	        listRow.add(row2);
	        listRow.add(row3);
	        listRow.add(row4);
	        listRow.add(row5);
	        listRow.add(row6);
	        listRow.add(row7);
	        listRow.add(row8);
	        listRow.add(row9);
	        return table;
	    }