I get error message each time I try to retrieve image (BLOB) from Oracle

Question

Can anyone help me?
I am working with Servlet and JDBC with Oracle database. I can insert an image (GIF file) in a Oracle
table in a BLOB field. But everytime I want to retrieve it
I got an error "AbstractMethodError". My retrieve program (only the main part) is as below:
String dbURL="jdbc:oracle:thin:@200.200.100.2:1521:tvm";
String db_username="PROJ1"; String db_password="PROJ1";
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
}catch(ClassNotFoundException e1){ }
try{
Connection c=DriverManager.getConnection(dbURL,db_username,db_password);
// Retrieving image file from database
RandomAccessFile raf=new RandomAccessFile("//Davison/jakarta/webapps/examples/images/a10.gif","rw");
PreparedStatement pstmt2=c.prepareStatement("Select fname,photo From testtable1 where fname=?");
pstmt2.setString(1,"rere100");
ResultSet rs=pstmt2.executeQuery();
while(rs.next()){
Blob blobImage=rs.getBlob("photo");
int length=(int)blobImage.length();
byte[] blobArray=blobImage.getBytes1,length);
raf.write(blobArray);
raf.close();
Please help me soon, my email is: [email protected]
Bye , Rea

Answer 1

Probably a bit late, but I just got the same problem.
Oracle seems to instantiate a class which is not fully defined-
oracle.sql.BLOB. This class has abstract methods, and is therefore
an abstract class.
In short, Oracle are stupid fools. How they managed to instantiate
an abstract class in the first place should be of concern to the
Java gurus, however. Native code in the OCI driver perhaps?
If you still need help, you could try uning the Thin driver- or
a database with a JDBC driver which actually meets the spec. There
are third party Oracle drivers which might fit the bill- they
usually cost money, however.