Paul Hinks' Blog » java http://www.paulhinks.com/blog Politics, Technology, Food Thu, 28 Jan 2010 06:29:04 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 Java – printing the contents of a bean http://www.paulhinks.com/blog/2009/04/20/java-printing-the-contents-of-a-bean/ http://www.paulhinks.com/blog/2009/04/20/java-printing-the-contents-of-a-bean/#comments Mon, 20 Apr 2009 18:34:29 +0000 paul http://www.paulhinks.com/?p=311 I just discovered this trick, and I’m recording it here so other people don’t have to search as much as I did to find it. To dump the contents of a bean b use this code:

org.apache.commons.beanutils.BeanUtils.describe(b).toString()

This uses reflection to dump the bean field names and values – very useful in debugging. describe returns a HashMap of fields and values – also useful if you want to check that specific fields have been set properly.

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