使用iText填充pdf表单

1、先用word只做好模板，另存为pdf格式，然后用pdf打开，启用表单编辑功能，设置好表单域。如下：

2、把模板放入项目中

3、jar包

<dependency>  
            <groupId>com.itextpdf</groupId>  
            <artifactId>itextpdf</artifactId>  
            <version>5.5.9</version>  
        </dependency>  
          
         <dependency>  
            <groupId>com.itextpdf.tool</groupId>  
            <artifactId>xmlworker</artifactId>  
            <version>5.5.9</version>  
        </dependency>  
                   
        <dependency>  
            <groupId>com.itextpdf</groupId>  
            <artifactId>itext-asian</artifactId>  
            <version>5.2.0</version>  
        </dependency>

代码：

工具类：：

public class GeneratePDFUtil {
	
	/**
	 * @param response
	 * @param filePath  生成文件的路径
	 * @param showFileName 显示的文件名
	 * @throws IOException
	 */
	 protected static void previewpdf(HttpServletResponse response, String filePath, String showFileName) throws IOException  {
			File f = new File(filePath);
			if (!f.isFile() || !f.exists()) {// 文件异常
				throw new FileNotFoundException("文件异常,请检查文件是否正确:" + filePath);
			}
			// 获取文件流
			InputStream fis = new BufferedInputStream(new FileInputStream(filePath));
			byte[] buffer = new byte[fis.available()];
			fis.read(buffer);
			fis.close();
			// 清空response
			response.reset();
			// 设置response的Header
			response.setCharacterEncoding("UTF-8");
			//response.setContentType("application/octet-stream;charset=UTF-8");
			//response.addHeader("Content-Disposition", "attachment1;filename=" + new String(showFileName.getBytes("gb2312"), "ISO8859-1"));
			response.setContentType("application/pdf;charset=UTF-8");
			// 下载文件名处理
			response.addHeader("Content-Disposition", "inline;filename=" + new String(showFileName.getBytes("gb2312"), "ISO8859-1"));
			response.addHeader("Content-Length", "" + f.length());
			// 文件流处理
			OutputStream toClient = new BufferedOutputStream(response.getOutputStream());

			toClient.write(buffer);
			toClient.flush();
			toClient.close();
			//删除临时文件
			File file=new File(filePath);
			file.delete();
		}
	
	

	/**
	 * 
	 * @param templatePath   模板路径
	 * @param newPDFPath     新文件路径 
	 * @param map
	 * @throws IOException 
	 */
	public static  void interviewReportPDF(HttpServletResponse response,String templatePath,String newPDFPath,Map<String, String> map,String showFileName) throws IOException {
		PdfReader reader;
		FileOutputStream out;
		ByteArrayOutputStream bos;
		PdfStamper stamper;
		try {
			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();
 
			// 给表单添加中文字体 这里采用系统字体。不设置的话，中文可能无法显示
			BaseFont bf = BaseFont.createFont("STSong-Light",
					"UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
			
			/*BaseFont bf = BaseFont.createFont(UtilPath.getRootPath() + "fonts/simsun.ttc,0", BaseFont.IDENTITY_H,
					BaseFont.EMBEDDED);*/
			form.addSubstitutionFont(bf);
 
			//遍历map装入数据
			for (Entry<String, String> entry : map.entrySet()) {
				form.setField(entry.getKey(), entry.getValue());
			}
			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) {
			
		} catch (DocumentException e) {
			
		}
		//到页面上进行展示
		previewpdf(response,newPDFPath,showFileName);
		
	}

controller:

@RequestMapping(value = "", method = RequestMethod.POST)
	public void feeOrderTemplate(HttpServletRequest request,HttpServletResponse response,@RequestParam("orderId") String orderId) throws IOException {
		
		Map<String,String> map = new HashMap<String,String>();
		/**
		 * 把信息放进map
		 */
		
		
		//模板路径
		String templatePath=request.getServletContext().getRealPath("/")+"static\\template\\order\\你的模板名字";
		//生成文件的路径
		String filePath=request.getServletContext().getRealPath("/")+"static\\template\\order\\"+System.currentTimeMillis()+".pdf";
		
		GeneratePDFUtil.interviewReportPDF(response, templatePath, filePath, map,"展示时显示的名字.pdf");
	}

页面：

function fyTemplate(id){
	var myform = $("<form></form>");
    myform.attr('method', 'post');
    myform.attr('target', 'hiddenIframe');
    myform.attr('action', "你的controller路径?orderId="+id);
    myform.appendTo('body').submit();
    myform.remove(); 
}

<iframe id="hiddenIframe" height="0" width="0"></iframe>

加iframe是为了新跳一个页面展示，而不是在原来的页面直接跳