File Download in jsp

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Venkata Naga Jyothi Vure

File Download in jsp
2 Answer(s) 6 years and 10 months ago
Posted in : JSP-Servlet

file upload code is working can u plz provide me file download

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March 26, 2011 at 12:53 AM

&lt;%@page contentType="application/octet-stream"%>
&lt;%@page pageEncoding="UTF-8"%>
&lt;%@ page language="java" import="java.io.<em>,java.net.</em>,java.util.<em>,javax.servlet.</em> "%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
&lt;%
BufferedInputStream filein = null;
BufferedOutputStream outputs = null;
try {
File file = new File("./path/filename.csv");//specify the file path
byte b[] = new byte[2048];
int len = 0;
filein = new BufferedInputStream(new FileInputStream(file));
outputs = new BufferedOutputStream(response.getOutputStream());
response.setHeader("Content-Length", ""+file.length());
response.setContentType("application/force-download");
response.setHeader("Content-Disposition","attachment;filename=Backup.csv");
response.setHeader("Content-Transfer-Encoding", "binary");
while ((len = fin.read(b)) > 0) {
outputs.write(b, 0, len);
outputs.flush();
}
}
catch(Exception e){
out.println(e);
}
%>
</body>
</html>

May 16, 2012 at 12:01 PM

*Create 2 Files* 

 **DownloadPage.JSP code :-** 

&lt;a href=&#039;downloadPdf.jsp?file=FILE.pdf&#039; &gt;Download PDF File&lt;/a&gt;

**downloadPdf.JSP code :-** 


&lt;%@ page import=&quot;java.util.*,java.io.*&quot;%&gt;               

&lt;%

  File f = new File (&quot;E:/PDFfiles/Downloads/&quot; + request.getParameter(&quot;file&quot;) );
  response.setContentType (&quot;application/pdf&quot;);
  response.setHeader (&quot;Content-Disposition&quot;, &quot;attachment; filename=&quot;&quot;+request.getParameter(&quot;file&quot;)+&quot;&quot;&quot;);
  String name = f.getName().substring(f.getName().lastIndexOf(&quot;/&quot;) + 1,f.getName().length());
  InputStream in = new FileInputStream(f);
  ServletOutputStream outs = response.getOutputStream();


  int bit = 256;
  int i = 0;
    try {
 while ((bit) &gt;= 0) {
 bit = in.read();
 outs.write(bit);
 }
 } catch (IOException ioe) {ioe.printStackTrace(System.out);
 }
 outs.flush();
 outs.close();
 in.close(); 
%&gt;

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