Uploading a photo in a jsp page

Question

hi Friends,
i have 4 fields
Date <takes system date>
Description<description of the photo>
Path< has a text box > Upload <is a button>
I want to upload photos on click event of a button and the the path of where my photo is located , that shud be entered in the path text box
and then I have a button Save
when i click on 'Save ' , it shud save the link in database as well as show the uploaded photo in apge called 'Photos.jsp"
basically my query is how i upload photo thru jsp ?
thnx in advance

Answer 1

Here is the solution to your problem dear.
just set the attribute of form ENCTYPE="multipart/form-data" and call this servlet from your jsp page
//=============================This Servlet stores image
import myConPack.Connect; //my own class to connect to db
import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
public class UploadIntoDB extends HttpServlet {
public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException
     PrintWriter out=response.getWriter();
     String contentType = request.getContentType();
//IF FORM HAS PICTURE ALSO THEN IF CONDITION WILL EXECUTED FOR WRITING IMAGE INTO DB
     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("\""));
     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;
     ByteArrayInputStream bais=new ByteArrayInputStream(dataBytes,startPos,(endPos-startPos));
     //========================================
     if((bais.available())>0)
     try{
          Connect connect=new Connect();
          Connection con=connect.getConnection();
          String SqlQuery="insert into tbl values(?,?)";          PreparedStatement pst=con.prepareStatement(SqlQuery);
          pst.setString(1,saveFile);//filename of image
          pst.setBinaryStream(2,bais,bais.available());//image itself
          int result=pst.executeUpdate();
          System.out.println(result+ "Row Added");
     }catch(Exception e) { System.out.println("Exception : "+e); }
     RequestDispatcher rd=request.getRequestDispatcher("/backto.jsp");
     if(rd!=null)
          rd.forward(request,response);
     else
out.println("NO IMAGE WAS Found ");
     }//if closed
}//function closed
}//class closed