Spring with aop schema based example programs

TUTIORALS FROM MADHAV:

     JAVA-SERVLETS     JAVA-JDBC     JAVA-JSP       HIBERNATE-SHCEMABASED 

    HIBERNATE-ANNOTATIONS     SPRING-IOC       SPRING –AOP-SCHEMABASED   

    SPRING-AOP-ANNOTATIONS      SPRING -DAO     SPRIN-MVC     SPRING-SECUTITY  

Spring with aop schema based example programs(weekend class material by madhav)

Ex1: this example program will describes working with Before advice:

Employee.java

package madhav;

public class Employee {

private String name;

private int id;

public void setDetails()

{

      name="madhav";

      id=101;

}

public void showDetails()

{

      System.out.println(name);

      System.out.println(id);

}

}

LoginAspect.java

package madhav;

public class LoginAspect {

 public void login()

 {

       System.out.println("login success");

 }

}

Spring.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"

       xsi:schemaLocation="http://www.springframework.org/schema/beans

                           http://www.springframework.org/schema/beans/spring-beans.xsd

                           http://www.springframework.org/schema/aop

                           http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">

<bean id="emp" class="madhav.Employee"></bean>

<bean id="aspect" class="madhav.LoginAspect"></bean>

<aop:config>

<aop:aspect id="loggingAspect" ref="aspect">

<aop:before method="login"

pointcut="within(madhav.Employee)"/>

</aop:aspect>

</aop:config>

</beans>

TestCase.java

import madhav.*;

import org.springframework.beans.factory.BeanFactory;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.springframework.core.io.FileSystemResource;

import org.springframework.beans.factory.xml.*;

public class TestCase {

            /**

             * @param args

             */

            public static void main(String[] args) {

                        // TODO Auto-generated method stub

  ApplicationContext ctx=new ClassPathXmlApplicationContext("spring.xml");

  // BeanFactory ctx=new XmlBeanFactory(new FileSystemResource("spring.xml"));

  Employee e=(Employee)ctx.getBean("emp");

   e.setDetails();

   e.showDetails();

   }

            }

               

Output:

login success

madhav

101

Types of advices:

1)      Before Advice   

2)      After advice

3)      Around advice

4)      After returning advice

5)      After throwing advice

Before advice:

<bean id="aspect" class="madhav.LoginAspect"></bean>

<aop:config>

<aop:aspect id="loggingAspect" ref="aspect">

<aop:before method="login"

pointcut="within(madhav.Employee)"/>

</aop:aspect>

</aop:config>

Note:  hear the advice method(login()) will call before calling the methods of(madhav.Exployee) class.

Output:

login success

madhav

101

After advice

<bean id="aspect" class="madhav.LoginAspect"></bean>

<aop:config>

<aop:aspect id="loggingAspect" ref="aspect">

<aop:after method="login"

pointcut="within(madhav.Employee)"/>

</aop:aspect>

</aop:config>

Note:  hear the advice method(login()) will call after calling the methods of(madhav.Exployee) class.

Output:

   madhav

     101

  login success

Around advice

<bean id="aspect" class="madhav.LoginAspect"></bean>

<aop:config>

<aop:aspect id="loggingAspect" ref="aspect">

<aop:around method="login"

pointcut="within(madhav.Employee)"/>

</aop:aspect>

</aop:config>

Note:  hear the advice method(login()) will call before and after  calling the methods of(madhav.Exployee) class.

Output:

login success

After returning advice

<bean id="aspect" class="madhav.LoginAspect"></bean>

<aop:config>

<aop:aspect id="loggingAspect" ref="aspect">

<aop:after-retruning method="login"

pointcut="within(madhav.Employee)"/>

</aop:aspect>

</aop:config>

After throwing advice

<bean id="aspect" class="madhav.LoginAspect"></bean>

<aop:config>

<aop:aspect id="loggingAspect" ref="aspect">

<aop:after-throwing method="login"

pointcut="within(madhav.Employee)"/>

</aop:aspect>

</aop:config>

click hear to download the source code.

TUTIORALS FROM MADHAV:

     JAVA-SERVLETS     JAVA-JDBC     JAVA-JSP       HIBERNATE-SHCEMABASED 

    HIBERNATE-ANNOTATIONS     SPRING-IOC       SPRING –AOP-SCHEMABASED   

    SPRING-AOP-ANNOTATIONS      SPRING -DAO     SPRIN-MVC     SPRING-SECUTITY