Practical 8 :- Practical based on  Spring Aspect Oriented Programming (AOP)

• Write a program to demonstrate Spring AOP – before advice.

  • code

    Logging.java
    package com.hiraymca;
    public class Logging {
    
    //Types of Advice
    //1 beforeAdvice
    public void beforeAdvice()
    {
    System.out.println("Setuping Student Profile ");
    }
    }
    
    Student.java
    
    package com.hiraymca;
    public class Student { private int age; private String name; public int getAge() {
    System.out.println("Age-"+age);
    return age;
    }
    public void setAge(int age) {
    this.age = age;
    }
    public String getName() { System.out.println("Name="+name); return name;
    }
    public void setName(String name) {
    this.name = name;
    }
    
    }
    
    
    MainApp.java
    package com.hiraymca;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class MainApp {
    
    public static void main(String[] args) {
    // TODO Auto-generated method stub 
    
    ApplicationContext context=new
    ClassPathXmlApplicationContext("Beans.xml");
    
    Student s=(Student)context.getBean("student"); s.getName();
    s.getAge();
    }
    
    }
    
    Beans.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:aop="http://www.springframework.org/schema/aop" xmlns:c="http://www.springframework.org/schema/c" xmlns:lang="http://www.springframework.org/schema/lang" 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/lang
    http://www.springframework.org/schema/lang/spring-lang-4.3.xsd http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/util
    http://www.springframework.org/schema/util/spring-util-4.3.xsd">
    
    <aop:config>
    <aop:aspect id="log" ref="logging">
    <aop:pointcut expression="execution(* com.hiraymca.*.*(..))" id="myid"/>
    <aop:before method="beforeAdvice" pointcut-ref="myid"/>
    </aop:aspect>
    
    </aop:config>
    <bean id="student" class="com.hiraymca.Student">
    <property name="name" value="Sukhiram"></property>
    <property name="age" value="35"></property>
    </bean>
    
    
    
    <bean id="logging" class="com.hiraymca.Logging"></bean>
    </beans>

• Write a program to demonstrate Spring AOP – after advice

  • code

    Logging.java
    
    package com.hiraymca;
    public class Logging {
    
    //Types of Advice
    //1 beforeAdvice
    public void afterAdvice()
    {
    System.out.println("Student Profile done ");
    }
    
    }
    
    
    Student.java
    
    package com.hiraymca;
    public class Student { private int age; private String name; public int getAge() {
    System.out.println("Age-"+age);
    return age;
    }
    public void setAge(int age) {
    this.age = age;
    }
    public String getName() { System.out.println("Name="+name); return name;
    }
    public void setName(String name) {
    this.name = name;
    }
    
    }
    
    
    MainApp.java
    
    package com.hiraymca;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class MainApp {
    
    public static void main(String[] args) {
    // TODO Auto-generated method stub ApplicationContext context=new
    ClassPathXmlApplicationContext("Beans.xml");
    Student s=(Student)context.getBean("student"); s.getName();
    s.getAge();
    }
    }
    
    Beans.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:aop="http://www.springframework.org/schema/aop" xmlns:c="http://www.springframework.org/schema/c" xmlns:lang="http://www.springframework.org/schema/lang" 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/lang
    http://www.springframework.org/schema/lang/spring-lang-4.3.xsd http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/util
    http://www.springframework.org/schema/util/spring-util-4.3.xsd">
    
    <aop:config>
    <aop:aspect id="log" ref="logging">
    <aop:pointcut expression="execution(* com.hiraymca.*.*(..))" id="myid"/>
    <aop:after method="afterAdvice" pointcut-ref="myid" />
    </aop:aspect>
    
    </aop:config>
    <bean id="student" class="com.hiraymca.Student">
    <property name="name" value="Sukhiram"></property>
    <property name="age" value="35"></property>
    </bean>
    <bean id="logging" class="com.hiraymca.Logging"></bean>
    </beans>
    
    
    
    Output
    Name=Sukhiram Student Profile done Age-35
    Student Profile done

• Write a program to demonstrate Spring AOP – around advice.

  • code

Write a program to demonstrate Spring AOP – after returning advice.

Write a program to demonstrate Spring AOP – after throwing advice.

Write a program to demonstrate Spring AOP – pointcuts.