Introduction
This article presents sample source code for creating the Bean instance using the Spring Framework. This is basic example to read configuration file from the file system and create the beans from the applicationContext.xml file. This xml file define two beans Employee and Address. Address bean is injected inside Employee bean using the ref attribute. If you are looking for more spring frameworkrelated resources, please read our list of Spring framework articles.
also read:
Sample Source Code
Employee.java
[code lang=”java”]
package javabeat.spring;
/**
* Source : https://javabeat.net
*/
public class Employee {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
private Address address;
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
}[/code]
Address.java
[code lang=”java”]
package javabeat.spring;
/**
* Source : https://javabeat.net
*/
public class Address {
public Address(){
}
private String street;
private String city;
private String pincode;
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getPincode() {
return pincode;
}
public void setPincode(String pincode) {
this.pincode = pincode;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
}[/code]
MainClass.java
[code lang=”java”]
package javabeat.spring;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
/**
* Source : https://javabeat.net
*/
public class MainClass {
public static void main(String args[]) {
Resource xmlResource = new FileSystemResource("applicationContext.xml");
BeanFactory factory = new XmlBeanFactory(xmlResource);
Employee employeeBean = (Employee)factory.getBean("employeeBean");
System.out.println(employeeBean.getName());
System.out.println(employeeBean.getAddress().getStreet());
System.out.println(employeeBean.getAddress().getCity());
System.out.println(employeeBean.getAddress().getPincode());
}
}[/code]
applicationContext.xml
[code lang=”xml”]
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<bean id="addressBean" class="javabeat.spring.Address">
<property name="street">
<value>Street</value>
</property>
<property name="city">
<value>Bangalore</value>
</property>
<property name="pincode">
<value>567456</value>
</property>
</bean>
<bean id="employeeBean" class="javabeat.spring.Employee">
<property name="name">
<value>Krishna Srinivasan</value>
</property>
<property name="address">
<ref bean="addressBean"/>
</property>
</bean>
</beans>[/code]
also read:
Leave a Reply