Spring 3 – Basic Example

Creating the Project

• Open Eclipse (Kepler)
• New -> Maven Project
• Simple Project
• Group Id: com.skills421.examples.spring
• Artifact Id: Spring3.2.6Example
• Finish

pom.xml

[code language=”xml”]
<project xmlns=”http://maven.apache.org/POM/4.0.0″ xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance”
xsi:schemaLocation=”http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd”>
<modelVersion>4.0.0</modelVersion>
<groupId>com.skills421.examples.spring</groupId>
<artifactId>Spring3.2.6Example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<spring.version>3.2.6.RELEASE</spring.version>
</properties>

<dependencies>

<!– Spring 3 dependencies –>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>

</dependencies>
</project>
[/code]

Person bean

src/main/java
com.skills421.examples.spring.model.Person

[code language=”java”]
package com.skills421.examples.spring.model;

public class Person
{
private String name;
private int age;

public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public int getAge()
{
return age;
}
public void setAge(int age)
{
this.age = age;
}

public String toString()
{
StringBuilder sb = new StringBuilder();

sb.append(“Person[“);
sb.append(“name=”);
sb.append(this.getName());
sb.append(“, age=”);
sb.append(this.getAge());
sb.append(“]”);

return sb.toString();

}
}
[/code]

ApplicationContext

src/main/resources
ApplicationContext.xml

[code language=”xml”]
<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.xsd”>

<bean id=”johnDoe” class=”com.skills421.examples.spring.model.Person”>
<property name=”name” value=”Jon Doe” />
<property name=”age” value=”21″ />
</bean>
</beans>
[/code]

Main

src/main/java
com.skills421.examples.spring.Main

[code language=”java”]
package com.skills421.examples.spring;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.skills421.examples.spring.model.Person;

public class Main
{

public static void main(String[] args)
{
ClassPathXmlApplicationContext context = null;

try
{
context = new ClassPathXmlApplicationContext(“ApplicationContext.xml”);

Person p1 = (Person) context.getBean(“johnDoe”);
System.out.println(p1.toString());
}
finally
{
if (context != null)
{
context.close();
}
}
}
}
[/code]

Output

[code]
Person[name=Jon Doe, age=21]
[/code]