public classPdfUtil {/** 生成pdf工具类

* wmy 12:40 2019/8/9

* @Param [guideBook, pdfPath]

* @return java.lang.Boolean

**/

public staticBoolean htmlToPdf(GuideBook guideBook, String pdfPath) {try{//1.新建document

Document document = newDocument();//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, newFileOutputStream(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= neworg.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, newByteArrayInputStream(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 voiddownload(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= newBufferedOutputStream(response.getOutputStream());int bytesRead = 0;while ((bytesRead = inputStream.read(buffer)) != -1) {

bos.write(buffer,0, 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 staticString getHtml(String title){return "

"+title+"

";

}

}