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]