这篇文章主要介绍了java根据富文本生成pdf文件过程解析,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
public class PdfUtil { /* * 生成pdf工具类 * wmy 12:40 2019/8/9 * @Param [guideBook,pdfPath] * @return java.lang.Boolean **/ public static Boolean htmlToPdf(GuideBook guideBook,String pdfPath) { try { // 1.新建document Document document = new Document(); // 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(pdfPath)); // 3.打开文档 document.open(); //要解析的html //html转换成普通文字,方法如下: org.jsoup.nodes.Document contentDoc = Jsoup.parseBodyFragment(getHtml(guideBook.getTitle())+guideBook.getContent()); org.jsoup.nodes.Document.OutputSettings outputSettings = new org.jsoup.nodes.Document.OutputSettings(); outputSettings.Syntax(org.jsoup.nodes.Document.OutputSettings.Syntax.xml); contentDoc.outputSettings(outputSettings); String parsedHtml = contentDoc.outerHtml(); //这儿的font-family不支持汉字,{font-family:仿宋} 是不可以的。 InputStream cssIs = new ByteArrayInputStream("* {font-family: PingFang-SC-Medium.otf;}".getBytes("UTF-8")); //第四个参数是html中的css文件的输入流 //第五个参数是字体提供者,使用系统默认支持的字体时,可以不传。 XMLWorkerHelper.getInstance().parseXHtml(writer,document,new ByteArrayInputStream(parsedHtml.getBytes()),cssIs); // 5.关闭文档 document.close(); } catch (Exception e) { e.printStackTrace(); return false; } return true; } /* * 下载文件 * wmy 9:54 2019/8/12 * @Param [request,response,inputStream,fileName] * @return void **/ public static void download(HttpServletRequest request,HttpServletResponse response,InputStream inputStream,String fileName){ BufferedOutputStream bos = null; try { // 定义输出缓冲 10k byte[] buffer = new byte[10240]; //文件名称的处理 // http://127.0.0.1:5002/guide-book/pdf?id=124 fileName = fileName.replaceAll("[\\pP\\p{Punct}]","-").replace(" ","-").replaceAll("[-]+","-")+".pdf"; String userAgent = request.getHeader("user-agent").toLowerCase(); if (userAgent.contains("msie") || userAgent.contains("like gecko")) { fileName = URLEncoder.encode(fileName,"UTF-8"); } else { fileName = new String(fileName.getBytes("UTF-8"),"iso-8859-1"); } response.setCharacterEncoding("utf-8"); response.setContentType("application/msword"); response.setHeader("Content-Disposition","attachment; filename=" + fileName); bos = new BufferedOutputStream(response.getOutputStream()); int bytesRead = 0; while ((bytesRead = inputStream.read(buffer)) != -1) { bos.write(buffer,bytesRead); } } catch (Exception e) { e.printStackTrace(); } finally { if (bos != null) { try { bos.close(); } catch (IOException e) { e.printStackTrace(); } } } } /* * 获取html * wmy 10:39 2019/8/12 * @Param [title] * @return java.lang.String **/ public static String getHtml(String title){ return "<h1 align=\"center\">"+title+"</h1>"; } }
测试结果: