Saving an image in MySQL from Java

Question

I am trying to save images in MySQL database from a Java swing application. I am using JFileChsoser to get the path of the image. Then after that converting the file so that

Answer 1

You are converting the byte[] to a String in your sql statement, and you will end up with incorrect data.

The right way to use a BLOB would be to pass the InputStream itself. You can use the FileInputStream you are using to read the file.

File image = new File(path);
FileInputStream fis = new FileInputStream ( image );

String sql="insert into imgtst (username,image) values (?, ?)";
pst=con.prepareStatement(sql);

pst.setString(1, user);
pst.setBinaryStream (2, fis, (int) file.length() );

When you retrieve it back you can similarly get an InputStream from the ResultSet:

InputStream imgStream = resultSet.getBinaryStream(2);