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haresh prajapati
upload and download video
4 Answer(s)      3 years ago
Posted in : Java Beginners


how to upload and download video in mysql databse using jsp? plz give me demo of this with table...


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September 23, 2011 at 4:33 PM


1)page.jsp

<%@ page language="java" %>
<Html>
<HEAD><TITLE>Display file upload form to the user</TITLE></HEAD>

<BODY>
<FORM ENCTYPE="multipart/form-data" ACTION="upload.jsp" METHOD=POST>
<br><br><br>
<center><table border="2" >
<tr><center><td colspan="2"><p align="center"><B>UPLOAD THE FILE</B><center></td></tr>
<tr><td><b>Choose the file To Upload:</b>
</td>
<td><INPUT NAME="file" TYPE="file"></td></tr>
<tr><td colspan="2">
<p align="right"><INPUT TYPE="submit" VALUE="Send File" ></p></td></tr>
<table>
</center>
</FORM>
</BODY>
</HTML>

2)upload.jsp

<%@ page import="java.io.*" %>
<%@ page import="java.sql.*" %>

<%
String contentType = request.getContentType();
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while (totalBytesRead < formDataLength) {
byteRead = in.read(dataBytes, totalBytesRead,formDataLength);
totalBytesRead += byteRead;
}
String file = new String(dataBytes);
String saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
out.println(saveFile);
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;
pos = file.indexOf("filename=\"");
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;

FileOutputStream fileOut = new FileOutputStream(saveFile);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();

%><Br><table border="2"><tr><td><b>You have successfully upload the file by the name of:</b>
<% out.println(saveFile);%></td></tr></table>
<%
Connection connection = null;
String connectionURL = "jdbc:mysql://192.168.10.112:3306/file";;;
ResultSet rs = null;
PreparedStatement psmnt = null;
FileInputStream fis;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "root", "root");
File f = new File(saveFile);
psmnt = connection.prepareStatement("insert into file(file_data) values(?)");
fis = new FileInputStream(f);
psmnt.setBinaryStream(1, (InputStream)fis, (int)(f.length()));
int s = psmnt.executeUpdate();
if(s>0) {
System.out.println("Uploaded successfully !");
}
else {
System.out.println("unsucessfull to upload file.");
}
}
catch(Exception e){e.printStackTrace();}
}
%> 
<a href="download.jsp">Download File</a>


September 23, 2011 at 4:47 PM


3)download.jsp:

<%@page import="java.sql.*"%>
<%@page import="java.io.*"%>
<%@page import="javax.servlet.*"%>
<%
ServletOutputStream output = response.getOutputStream();
String connectionURL = "jdbc:mysql://192.168.10.112:3306/file";;;;;
String Content=new String("");
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con=DriverManager.getConnection(connectionURL,"root","root");
Statement st=con.createStatement();
ResultSet rst= st.executeQuery("select * from file");
if(rst.last())
{
Content=rst.getString("file_data");
}
con.close();
}catch(Exception e){
System.out.println("Exception caught"+e.getMessage());
}
byte requestBytes[] = Content.getBytes();
ByteArrayInputStream bis = new ByteArrayInputStream(requestBytes);
response.reset();
response.setContentType("mime/flv");
response.setHeader("Content-disposition","attachment; filename=" +"file.flv");
byte[] buf = new byte[1024];
int len;
while ((len = bis.read(buf)) > 0){
output.write(buf, 0, len);
}
bis.close();
response.getOutputStream().flush();
%>


October 6, 2011 at 11:20 AM


thnx..



June 27, 2012 at 6:24 AM


Hello can anyone give the table for database for the above coding....PLZ



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