Uploading a file into mySQL database?

Question

Hello, everybody.
Can anyone give me a code snippet or at least a hint, how could I upload a file into the BLOB field of mySQL database using JSP webpage? How do you generally store uploaded files on the server? If anyone could suggest a good algorythm of saving the files in the server's file system and saving only their URLs in the database (this was my initial idea), I would be ready to accept this as well.
Would be appreciated for any help.

Answer 1

Hi
Fou uploading the files from client site to server user the utility given by oreilly Go to this site and down the code for uploading the source code for fileupload
For writing this code to database use this code
code
import java.sql.*;
import java.io.*;
class BlobTest {
     public static void main(String args[]) {
          try {
               //File to be created. Original file is duke.gif.
               DriverManager.registerDriver( new org.gjt.mm.mysql.Driver());
               Connection conn = DriverManager.getConnection("jdbc:mysql://agt_229/test","manoj","manoj");
               /*PreparedStatement pstmt = conn.prepareStatement("INSERT INTO BlobTest VALUES( ?, ? )" );
               pstmt.setString( 1, "photo1");
               File imageFile = new File("duke.gif");
               InputStream is = new FileInputStream(imageFile);
               pstmt.setBinaryStream( 2, is, (int)(imageFile.length()));
               pstmt.executeUpdate();
               PreparedStatement pstmt = conn.prepareStatement("SELECT image FROM testblob WHERE Name = ?");
               pstmt.setString(1, args[0]);
               RandomAccessFile raf = new RandomAccessFile(args[0],"rw");
               ResultSet rs = pstmt.executeQuery();
               if(rs.next()) {
                    Blob blob = rs.getBlob(1);
                    int length = (int)blob.length();
                    byte [] _blob = blob.getBytes(1, length);
                    raf.write(_blob);
               System.out.println("Completed...");
          } catch(Exception e) {
               System.out.println(e);
end of code
this code contain both inserting into table and retrieving from table