Sep 29

The default data store is stored as an attribute in the application context.

// Get application context

ServletContext application=servlet.getServletContext();

// lookup data source

DataSource datasource = 
   (DataSource) application.getAttribute(Global.DATA_SOURCE_KEY);

written by objects \\ tags: , ,

Sep 29

The ImageIO class can be used to write an image as a PNG encoded stream.If you write that stream to a ByteArrayOutputStream then you will end up with a byte array that contains the PNG encoded image.


ByteArrayOutputStream out = new ByteArrayOutputStream();
ImageIO.write(image, "PNG", out);
byte[] imageBytes = out.toByteArray(); 

written by objects \\ tags: , ,

Sep 29

The ImageIO class can be used to write an image as a JPEG encoded stream.If you write that stream to a ByteArrayOutputStream then you will end up with a byte array that contains the JPEG encoded image.


ByteArrayOutputStream out = new ByteArrayOutputStream();
ImageIO.write(image, "JPEG", out);
byte[] imageBytes = out.toByteArray(); 

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