Alias in Spring Example
In spring we access another bean using id or name. Spring provides <alias> to bean. Alias is used to give another name to spring.
<alias name=”bean name” alias=”new bean name”/>
employee.java
package com.javainfinite; public class employee { private String ename; private int id; public String getEname() { return ename; } public void setEname(String ename) { this.ename = ename; } public int getId() { return id; } public void setId(int id) { this.id = id; } }
employeedependent.java
package com.javainfinite; public class employeedependent { employee employee; employee employee1; public employee getEmployee1() { return employee1; } public void setEmployee1(employee employee1) { this.employee1 = employee1; } public employee getEmployee() { return employee; } public void setEmployee(employee employee) { this.employee = employee; } public void display() { System.out.println("Employee Name: "+employee.getEname()+" ID: "+employee.getId()); System.out.println("Employee Name: "+employee1.getEname()+" ID: "+employee1.getId()); } }
operational.java
package com.javainfinite; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class operational { public static void main(String args[]) { ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml"); employeedependent emp=(employeedependent) ac.getBean("employeedependent"); emp.display(); } }
applicationContext.xml
<?xml version='1.0' encoding='UTF-8' ?> <!-- was: <?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-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <bean id="employeedependent" class="com.javainfinite.employeedependent"> <property name="employee"> <bean class="com.javainfinite.employee"> <property name="ename" value="Alpha"/> <property name="id" value="001"/> </bean> </property> <property name="employee1" ref="emp2"/> </bean> <alias name="employee2" alias="emp2"></alias> <bean id="employee2" class="com.javainfinite.employee"> <property name="ename" value="Beta"/> <property name="id" value="002"/> </bean> </beans>