CODEWITHSUNDEEP
javascriptjqueryspringspring-mvcpdfbox
SiddP
SiddP

Reputation: 1663

Empty and broken pdf file downloaded from UI using spring mvc and apache pdf box

The following code works fine with no error I am able to download file with the name as specified in code but the issue is there is no content printed to it and when I open the file I get error saying file is damaged. While I just save the file somewhere I get proper file with contents.

From UI:

var jsonStrToSend = JSON.stringify( jsonObjToSend );
jsonStrToSend = jsonStrToSend.replace(/"/g, """);
var url = '/'+appPath+'/reportgeneration' ;
var $form = $('<form enctype=\'application/json\' action="' + url + '" method="post">').append($('<input type="hidden" name="data" id="data" value="' + jsonStrToSend + '" />'));
$form.appendTo("body").submit();

In Controller:

@RequestMapping(value = "/reportgeneration", method = RequestMethod.POST)
           public @ResponseBody void reportgeneration(HttpServletRequest request,
                 HttpServletResponse response){ 
           Map returnMapMessage = new HashMap();
           int resultData =0;
           HttpSession httpsessionObj = request.getSession(false);
           try{
               PDDocument doc = new PDDocument();
               PDPage intro_page = new PDPage();

               doc.addPage( intro_page );

               PDPageContentStream contentStream_itro =
                        new PDPageContentStream(doc, intro_page);

               //Some stuff.......

               String fileName = reportName+"_"+tempDate.getDate()+"-"+tempDate.getMonth()+"-"+tempDate.getYear()+" "+tempDate.getHours()+tempDate.getMinutes()+".pdf";
               //doc.save("/test/webapp/reports/"+fileName);
               response.setContentType("application/pdf");
               PDStream ps=new PDStream(doc);
               InputStream is=ps.createInputStream();
               String headerKey = "Content-Disposition";
               String headerValue = String.format("attachment; filename=\"%s\"", fileName);
               response.setHeader("Expires:", "0"); // eliminates browser caching
               response.setHeader(headerKey, headerValue);
               org.apache.commons.io.IOUtils.copy(is, response.getOutputStream());
               response.flushBuffer();
               is.close();
               doc.close();

Upvotes: 1

Views: 996

Answers (1)

SiddP
SiddP

Reputation: 1663

I was missing out doc.save() as I felt it not necessary as I was not storing file anywhere in the drive. But below code just works fine.

ByteArrayOutputStream output = new ByteArrayOutputStream();
doc.save(output);
doc.close();
response.addHeader("Content-Type", "application/force-download");
response.addHeader("Content-Disposition", "attachment; filename=\""+fileName+"\"");
response.getOutputStream().write(output.toByteArray());

Upvotes: 2

Related Questions