Category Archives: Spring

Oddjob With Spring

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Spring is great for creating flexible applications by assembling loosely coupled components using XML. Here’s a simple Spring configuration file:

<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

  <bean id="hello" class="example.HelloWorldBean" />

</beans>

Except that now you have to go back to your context assisted IDE and write some Java to launch it!
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A Custom Property in Spring

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(Please note there as a postscript to this post: A Simpler Custom Property in Spring)

<context:property-placeholder> is a really easy way to provide property replacements in Spring configurations with values from a standard Java Properties file. But what if you don’t want a property hard coded into a file – a clear text password for instance? Spring provides all the bits and pieces to write your own property replacement. Let me introduce my CustomPropertyConfigurer.
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