Image retreival from DB in jsp

hello
if you want to display 30 or so images on a page generated by a jsp, where the images come on the fly from a database.... do you get the images, send them to a tmp file and then write the location in the html in the jsp? is there a better way that you all use?
0

Or you can store images relative path from the context of your application and the put that path in the db and just query the db,retrieve the path info and create an image object..
Hope this helps
Khalid

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hai frnds,
i have one doudt regarding in my web application Development
. I want to Getting image path from database( **Remote server**) & display in jsp page here iam forwarding my control through Servlets
how this will passiable
Thanks in Advance
SonyKamesh
[email protected]

hai
I think ur doubt will be...
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[email protected]
Edited by: Sonykamesha on Dec 18, 2007 11:02 PM

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i tried to display image from oracle DB to jsp directly without using file processing , and i used Servlet and jsp , Servlet to get image from DB and jsp to use <img> tag , when i Run Servlet code
the image appaer on Microsoft Photo Editor , and when i run jsp the image dose not appear on jsp page , so please anyone has an idea about this broblem ,send the soluation or any information to my e-mail [email protected] , and I'll thankful about your help.
the Servlet and jsp code are below .
thank for your help
Servlet:
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.PrintWriter;
import java.io.IOException;
public class Servlet extends HttpServlet
public void init(ServletConfig config) throws ServletException
super.init(config);
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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ResultSet rs = null;
Connection Lcon = null;
String stmt = " select Image from ImageTable where lmage_id ="+id;
Statement sm = null;
String data1 ="";
try
Lcon = getConntcion();
sm = Lcon.createStatement();
rs = sm.executeQuery(stmt);
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InputStream in = rs.getBinaryStream(1);
ServletOutputStream sout = response.getOutputStream();
int c;
while((c=in.read())!= -1)
sout.write(c);
in.close();
sout.flush();
sout.close()
}catch(Exception e)
System.out.println("error in selectValue the error is "+e);
finally
rs .close( );
sm .close( );
Lcon.close( );
public Connection getConntcion()
Connection con = null;
try{
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
con = DriverManager.getConnection(",,,,,,,, DB Info ,username and password ,,,,,,,,,,,");
}catch(Exception e)
System.out.println("error in connection the error is "+e);
return con;
Jsp code :
<%@ page contentType="text/html"%>
<html>
<head
</head>
<title> testing image </title>
<body>
<form>
<img src="servlet/Servlet?no=2">
</form>
</body>
</html>

InputStream in = rs.getBinaryStream(1);
byte[] image= null;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[8192];
int bytesRead = 0;
while ((bytesRead = in.read(buffer, 0, 8192)) != -1)
     baos.write(buffer, 0, bytesRead);
image= baos.toByteArray();
in.close();
ServletOutputStream sout = response.getOutputStream();
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       sout.flush();
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I am designing a web page where the user enters a page after entering his/her login and password.The User should now be provided with a display page containing the servers that he has permissions for access.The servers that he has permissions are maintained in a database(a normal text file in UNIX).
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I need to create a HTML form containing these servers names in a check box so that when the user clicks thcheck box against the server name it should go to the server and get the password for the required server.
THe intention from me is to create a HTML file that dynamically takes values from the running JSP means the server names as a string value to its input and then i can continue
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int fl=0;
while (in1.available() !=0)
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once these are clicked i think i can pass on this to another JSP and retreive passwords
Please guide me in this

FileInputStream fs = new FileInputStream("/root/Auth_Application/User_Access_List");
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                                int fl=0;
                                while (in1.available() !=0)
                                String str1=in1.readLine();
                                StringTokenizer st1 = new StringTokenizer(str1);
                                String usernam=st1.nextToken();
                                if (usernam.equals(uname))
                                String ip=st1.nextToken();
                                String host=st1.nextToken();
                                fl=1;
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I have here read the servername and server ip stored from a file in UNIX in the running JSP.Now i need to pass these string variables to HTML file and display it in a Check box format.the strings host and ip have to be passed to the input of the HTML file so that they can further be processed once they are clicked using another JSP.
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Hi,
I am developing image gallery from images stored in oracle database.
I am using JQuery ColorBox plugin (http://www.jacklmoore.com/colorbox/example1/) and I need to specify image in href for plugin.
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I can see image in browser when I run url http://localhost:8080/gallery/show_image.jsp?id=1.
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- Thanks
Zohaib.
Edited by: zohaib82 on Oct 30, 2012 2:46 AM
Edited by: zohaib82 on Oct 30, 2012 2:46 AM

Hard to say when you don't provide anything actually useful other than "its not working". I can only guess that your JSP needs to set a proper content-type. I would investigate using an image servlet in stead of your JSP:
http://balusc.blogspot.com/2007/04/imageservlet.html

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rs.next();
byte[] bytearray = new byte[rs.getInt(1)];
int size=0;
InputStream sImage;
sImage = rs.getBinaryStream(2);
response.reset();
response.setContentType("image/jpeg");
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response.getOutputStream().write(bytearray,0,size);
response.flushBuffer();
sImage.close();

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I cannot display image (read from oracle BLOB field) on browser?
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content.htm:
<html>
<h1>this is a test .</h1>
<hr>
<img src="showcontent.jsp">
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regards

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Matt,
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matt wrote:
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Image retreival from DB in jsp

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