How to fetch the image file from oracle database and display it.

Question

hi... i've inserted the image file into the oracle database... now i want to retreive it and want to display it... can anybody help me... pls

Answer 1

not a big deal dude... i fetched the image from database and saved it into my local hard disk.. but when tried to open it,ends up with no preview... dont know what d prob is... any idea... i've inserted the image as bytes n trying to fetch it as binary stream.. is that the problem... here im giving my insertion and retireving code.. jus go through it...
Insertion code:_
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* and open the template in the editor.
package PMS;
import java.io.File;
import java.io.FileInputStream;
import java.sql.Blob;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class Browse_java
static Connection con=null;
public static void main(String args[])
try{
System.out.println("(browse.java) just entered in to the class");
con = new PMS.DbConnection().getConnection();
System.out.println("(browse.java) connection string is"+con);
PreparedStatement ps = con.prepareStatement("INSERT INTO img_exp VALUES(?,?)");
System.out.println("(browse.java) prepare statement object is"+ps);
File file =new File("E:/vanabojanalu-/DSC02095.JPG");
FileInputStream fs = new FileInputStream(file);
System.out.println("lenth of file"+file.length());
byte blob[]=new byte[(byte)file.length()];
System.out.println("lenth of file"+blob.length);
fs.read(blob);
ps.setString(1,"E:/vanabojanalu-/DSC02095.JPG");
ps.setBytes(2, blob);
// ps.setBinaryStream(2, fs,(int)file.length());
System.out.println("(browse.java)length of picture is"+fs.available());
int i = ps.executeUpdate();
System.out.println("image inserted successfully"+i);
catch(Exception e)
e.printStackTrace();
finally
try {
con.close();
} catch (SQLException ex) {
ex.printStackTrace();
and Retrieving code is:
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* and open the template in the editor.
package PMS;
import java.beans.Statement;
import java.io.*;
import java.net.*;
import java.sql.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.servlet.*;
import javax.servlet.http.*;
import oracle.jdbc.OracleResultSet;
* @author Administrator
public class view_image2 extends HttpServlet {
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("image/jpeg");
//PrintWriter out = response.getWriter();
try
javax.servlet.http.HttpServletResponse res=null;;
int returnValue = 0;
Connection con = null;
PreparedStatement stmt = null;
ResultSet rs = null;
InputStream in = null;
OutputStream os = null;
Blob blob = null;
//String text;
//text=request.getParameter("text");
//Class.forName("com.mysql.jdbc.Driver");
con=new PMS.DbConnection().getConnection();
System.out.println("jus entered the class");
//String query = "SELECT B_IMAGE FROM img_exp where VC_IMG_PATH=?";
//conn.setAutoCommit(false);
PreparedStatement pst = con.prepareStatement("select b_image from img_exp where vc_img_path=?");
System.out.println("before executing the query");
pst.setString(1,"C:/Documents and Settings/Administrator/Desktop/Leader.jpg");
rs = pst.executeQuery();
//System.out.println("status of result set is"+rs.next());
System.out.println("finished writing the query");
int i=1;
if(rs.next())
System.out.println("in rs") ;
byte[] byte_image=rs.getBytes(1);
// byte blob_byte[]= new byte[(byte)blob.length()];
//System.out.println("length of byte is"+blob_byte);
//String len1 = (Oracle.sql.blob)rs.getString(1);
//System.out.println("value of string is"+len1);
//int len = len1.length();
//byte [] b = new byte[len];
//in = rs.getBinaryStream(1);
int index = in.read(byte_image, 0, byte_image.length);
System.out.println("value of in and index are"+in+" "+index);
FileOutputStream outImej = new FileOutputStream("C://"+i+".JPG");
//FileOutputStream fos = new FileOutputStream (imgFileName);
BufferedOutputStream bos = new BufferedOutputStream (outImej);
//byte [] byte_array = new byte [blob_byte.length]; //assuming 512k size; you can vary
//this size depending upon avlBytes
//int bytes_read = in.read(blob_byte);
bos.write(index);
/*while (index != -1)
outImej.write(blob_byte, 0, index);
index = in.read(blob_byte, 0, blob_byte.length);
//System.out.println("==========================");
//System.out.println(index);
//System.out.println(outImej);
//System.out.println("==========================");
/*ServletOutputStream sout = response.getOutputStream(outImej);
          for(int n = 0; n < blob_byte.length; n++) {
               sout.write(blob_byte[n]);
          sout.flush();
          sout.close();*/
outImej.close();
//i++;
else
returnValue = 1;
catch(Exception e)
System.out.println("SQLEXCEPTION : " +e);
finally {
//out.close();
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
* Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
* Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
* Returns a short description of the servlet.
public String getServletInfo() {
return "Short description";
// </editor-fold>
}