补充：一下代码基于maven，现将依赖的jar包单独导出

地址：

 

 也就两个文件

 

 java读取pdf中的纯文字，这里使用的是pdfbox工具包

maven引入如下配置

　　　　 
                 
      
       net.sf.cssbox
                  
      
       pdf2dom
                  
      
       1.7
              
             
                 
      
       org.apache.pdfbox
                  
      
       pdfbox
                  
      
       2.0.12
              
             
                 
      
       org.apache.pdfbox
                  
      
       pdfbox-tools
                  
      
       2.0.12
              
     

工具类直接读取

代码示例

　　/*    读取pdf文字     */    @Test    public void readPdfTextTest() throws IOException {        byte[] bytes = getBytes("D:\\code\\pdf\\HashMap.pdf");        //加载PDF文档        PDDocument document = PDDocument.load(bytes);        readText(document);    }    public void readText(PDDocument document) throws IOException {        PDFTextStripper stripper = new PDFTextStripper();        String text = stripper.getText(document);        System.out.println(text);    }

将pdf转换为html

效果图

 代码示例

/*    pdf转换html     */    @Test    public void pdfToHtmlTest()  {        String outputPath = "D:\\code\\pdf\\HashMap.html";        byte[] bytes = getBytes("D:\\code\\pdf\\HashMap.pdf");//        try() 写在()里面会自动关闭流        try (BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(outputPath)),"UTF-8"));){            //加载PDF文档            PDDocument document = PDDocument.load(bytes);            PDFDomTree pdfDomTree = new PDFDomTree();            pdfDomTree.writeText(document,out);        } catch (Exception e) {            e.printStackTrace();        }    }    /*    将文件转换为byte数组     */    private byte[] getBytes(String filePath){        byte[] buffer = null;        try {            File file = new File(filePath);            FileInputStream fis = new FileInputStream(file);            ByteArrayOutputStream bos = new ByteArrayOutputStream(1000);            byte[] b = new byte[1000];            int n;            while ((n = fis.read(b)) != -1) {                bos.write(b, 0, n);            }            fis.close();            bos.close();            buffer = bos.toByteArray();        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return buffer;    }

完整的一个上传pdf转换为HTML功能（今后转换pdf也不需要找什么第三方了，哈哈）

@RequestMapping("ud")@Controllerpublic class UpAndDownController {    @RequestMapping("upload.do")    @ResponseBody    public Map
     
       upload(@RequestParam("file") MultipartFile file, HttpServletRequest request){        Map
      
        map = new HashMap<>();        map.put("code","200");        try {            PdfConvertUtil pdfConvertUtil = new PdfConvertUtil();            String pdfName = file.getOriginalFilename();            int lastIndex = pdfName.lastIndexOf(".pdf");            String fileName = pdfName.substring(0, lastIndex);            String htmlName = fileName + ".html";            String realPath = ResourceUtils.getURL("classpath:").getPath() + "/templates/file";            File f = new File(realPath);            if(!f.exists()){                f.mkdirs();            }            String htmlPath = realPath + "\\" + htmlName;            pdfConvertUtil.pdftohtml(file.getBytes(), htmlPath);        } catch (Exception e) {            map.put("code","500");            e.printStackTrace();        }        return map;    }}
      
     

可以使用postman调试

需要设置请求头 Content-Type 指定为 application/x-www-form-urlencoded

之后选择body选择form-data，OK

 

如果涉及到HTML页面直接加载PDF，无需插件

可以参考下