Spring 3 Hello World Example

Spring 3 Hello world example

Technologies used

STS
Maven
JDK 1.6

POM file

1:  <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
2:       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  
3:       <modelVersion>4.0.0</modelVersion>  
4:       <groupId>com.ravi.helloworld</groupId>  
5:       <artifactId>Spring3HelloWorld</artifactId>  
6:       <packaging>jar</packaging>  
7:       <version>1.0-SNAPSHOT</version>  
8:       <name>Spring3HelloWorld</name>  
9:       <url>http://maven.apache.org</url>  
10:       <properties>  
11:            <spring.version>3.2.3.RELEASE</spring.version>  
12:       </properties>  
13:       <dependencies>  
14:            <dependency>  
15:                 <groupId>junit</groupId>  
16:                 <artifactId>junit</artifactId>  
17:                 <version>4.8.2</version>  
18:                 <scope>test</scope>  
19:            </dependency>  
20:            <!-- Spring 3 dependencies -->  
21:            <dependency>  
22:                 <groupId>org.springframework</groupId>  
23:                 <artifactId>spring-core</artifactId>  
24:                 <version>${spring.version}</version>  
25:            </dependency>  
26:            <dependency>  
27:                 <groupId>org.springframework</groupId>  
28:                 <artifactId>spring-context</artifactId>  
29:                 <version>${spring.version}</version>  
30:            </dependency>  
31:       </dependencies>  
32:  </project>  

The source code looks like this

1:  package com.ravi.helloworld;  
2:  import org.springframework.context.ApplicationContext;  
3:  import org.springframework.context.support.ClassPathXmlApplicationContext;  
4:  public class App {  
5:       public static void main(String[] args) {  
6:            ApplicationContext context = new ClassPathXmlApplicationContext(  
7:                      "AppContext.xml");  
8:            HelloWorld obj = (HelloWorld) context.getBean("welcomeBean");  
9:            obj.printHello();  
10:       }  
11:  }  

The application context file

1:  <beans xmlns="http://www.springframework.org/schema/beans"  
2:       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
3:       xsi:schemaLocation="http://www.springframework.org/schema/beans  
4:  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">  
5:       <bean id="welcomeBean" class="com.ravi.core.HelloWorld">  
6:            <property name="name" value="Ravisankar" />  
7:       </bean>  
8:  </beans>  

When you run it the output will look something like this

1:  Spring 3 : Hello ! Ravisankar