Upgrading to Spring 3.1 is very simple of upgrading your Maven version number and rebuilding, something like this:
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>3.1.2.RELEASE</version> </dependency>
After recompiling you’ll probably find a whole bunch of newly deprecated classes such as XmlBeanFactory, which has been deprecated in favour of DefaultListableBeanFactory so,
Resource resource = new ClassPathResource("example2.xml"); return new XmlBeanFactory(resource);
Resource resource = new ClassPathResource("example2.xml"); DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory(); BeanDefinitionReader reader = new XmlBeanDefinitionReader(beanFactory); reader.loadBeanDefinitions(resource);
For a full list of deprecated classes http://static.springsource.org/spring/docs/3.1.x/javadoc-api/deprecated-list.html
The next thing to do is option, but a good idea is to change your Spring XML headers from 3.0 to 3.1 so that the XML schema’s referenced end in -3.1.xsd. For example:
The easiest way of doing this is to use eclipse’s global replace to replace to change -3.0.xsd with -3.1.xsd, but have a quick check first before your do this...
The reason for updating your schema’s is to take advantage of Spring’s new features, but more on that later...