将PDF文件显示到JSF PAGE中

Question

I want to display a pdf file without save the file on the server i have saved the generete pdf in array byte when i trie to display in the page it come like this

xœÕZIk,7?¾ûWÌ9 G[·$f=ä0ä?rË9ò.ùû©E%•Zín¿áñfì^¤Z¿úªdófO½üy2'?Myzs§ì[:}ùåå‡oNð=ø÷å·—ëûË4Ã<üþóéÛ§=Ywzÿõdz±Ë|6Îx?–Ww6ÓóbÏ&š´¼¦³Éæb®xá¶Èý;~8?—×x6ò?<ÈK8“ 9\\2›']¡õh ¸fµ|%,?½÷òxù~SÚÙ¼ù•´ÖY\\5Án´B¶Á¢DvÆ}l¤ÏdÜÈx™î]–WzôJwoËT.Ùû'?^ÀËÁ>èû²/S˜ß¦µLOgœµÎ9؃÷zT#f°/Z€”ObÝÝ-¼{‹k']šñ‡¥\\°f™ãÙMä‚Ì·yG7;ôî†fÒ¾ôLvÉzxÄî?aÓ[^ëÁr.;Pq*{=xÅ+]_ðÕ*?Œ;ã#w1‡Š2z;²i´ÄÄ¡ä‹ø%À2 ŒO[?fÆD µ2èêxIV¹EKò-XbÁ÷M ¦¯L– Ñ{kÎÙŽ!=ƒY)xMV¤þÆ{xo(îb r×Û– M¸ÂVßS^RðÕÕ+%H9LEãƒqqï´÷®lÚ»v]qoIr¯–à[I¿;‰˜öìý¾Åb?²Áua!ïÕ¾áJN¶ ¨ôAt|p:äl¤³l6ë½}'‚˜HÉO(ç¬rìÞTöb<Ú^!b\\ƒ¦˜Z^u?¼åÿ3ÏWOeñßMRX²tß?³q)•

this is my code

 FacesContext context = FacesContext.getCurrentInstance();  
  HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();          
  response.reset();
  ServletOutputStream os = response.getOutputStream();
  response.setContentType("application/pdf"); // fill in  
  response.setContentLength(this.currentDocument.getContenu().length);  
  String pdfName="Test";
  response.setHeader("Content-Disposition", "attachment; filename=\"" + pdfName + "\""); 

  os.write(this.currentDocument.getContenu()); // fill in bytes  

  os.flush();  
  os.close();  
  context.responseComplete();  

Answer 1

It's happening most likely because you're using an ajax action to fire the PDF generation. A full-on HTTP request is required to properly render the PDF in the response

Make sure you're not using an ajax button like <p:commandButton/> to fire the action.

Use either

<p:commandButton ajax="false"/>

OR

<h:commandButton/>