javaweb实现pdf预览

1.  pdf.js下载 http://mozilla.github.io/pdf.js/
2.  项目中引入pdfjs

3. 更改pdfjs中文件 view.js 

   代码: var DEFAULT_URL = ''; 默认路径置为空.

4. 页面代码

    
    
    
    


pdf预览 

1. 后台代码

2. @RequestMapping("/showpdf")
   public void showpdf(HttpServletRequest request,HttpServletResponse response) {
       try {
           String fileId = request.getParameter("fileId");
           System.out.println(fileId);
           File file = new File("E://0621.pdf");
           FileInputStream fileInputStream = new FileInputStream(file);
           response.setHeader("Content-Disposition", "attachment;fileName=0621.pdf");
           response.setContentType("multipart/form-data");
           OutputStream outputStream = response.getOutputStream();
           IOUtils.write(IOUtils.toByteArray(fileInputStream), outputStream);
           fileInputStream.close();
           outputStream.flush();
           outputStream.close();
       } catch(Exception e) {
           e.printStackTrace();
       }
   }