<alias> in Spring XML
November 02, 2021
<alias> element defines an alias for a bean in XML configuration. The <alias> element can be used to alias a bean outside the bean definition. The <alias> is useful in the large applications where configurations are split amongst each subsystem and each subsystem is having its own bean definitions. If we wish to introduce an alias for a bean that is defined elsewhere, we can use <alias> element in XML configuration.
Find the code to use
<alias> element.
<alias name="ent" alias="alias_ent"/>
<alias> Example
spring-config.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<bean id="ent" class="com.concretepage.Entitlement">
<property name="name" value="Entitlement"/>
<property name="time" value="50"/>
</bean>
<alias name="ent" alias="alias_ent"/>
</beans>
package com.concretepage;
public class Entitlement {
private String name;
private int time;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getTime() {
return time;
}
public void setTime(int time) {
this.time = time;
}
}
package com.concretepage;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class SpringDemo {
public static void main(String... args) {
ApplicationContext context = new ClassPathXmlApplicationContext("spring-config.xml");
Entitlement ent=(Entitlement)context.getBean("alias_ent");
System.out.println(ent.getName());
System.out.println(ent.getTime());
}
}
