Here goes a tutorial to get your feet wet with a (really) simple Java Application using the latest version of
Spring.
1- Create a simple Java project named "SimpleSpring3"
2- Create a "lib" in your project right under your "src" folder, then
download the latest Spring version and copy the jars to "lib". Also copy "commons-logging.jar" located in the following location "projects/spring-build/lib/ivy" in the unzipped Spring file. Your library should look like this
3- Create a "SimpleSpring3" java class in the "com.greensoft" package, this class will contain one simple "sayHola" method that prints "Hola Spring 3.0!!" in the console
4- Create the Spring config "SimpleSpring3.xml" file located in the "src" folder
5- Add the following code to the Spring config file
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="SimpleSpring3Bean" class="com.greensoft.SimpleSpring3" />
</beans>
The code in the config file defines a bean that can be accessed later on from our test file using the bean factory
6- Create the test file "SimpleSpring3Test" and the following code
package com.greensoft;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
public class SimpleSpring3Test {
public static void main(String[] args) {
XmlBeanFactory beanFactory = new XmlBeanFactory(new ClassPathResource(
"SimpleSpring3.xml"));
SimpleSpring3 simpleSpringBean = (SimpleSpring3) beanFactory
.getBean("SimpleSpring3Bean");
simpleSpringBean.sayHola();
}
}
In the above code we use XmlBeanFactory to get access to our config file "SimpleSpring3.xml" in order to get our "SimpleSpring3Bean" object.
7- The final project structure should look like this
8- Execute the code by right clicking on the test file "SimpleSpring3Test" then --> Run As --> Java Application" and you should get the following output in the console
simple, right? I hope it was useful for someone out there, that's it for now ;)
