Hints
Below is an example of "Spring's tag with after,before,after-returning,after-throwing and pointcut Example"
|
Download as Zip
Link to download
SpringAOPAllAdvicesExample
Hints.
Click on File menu. then click " Download"
|
Step.1 Start a Java Project with required jars
- Open Eclipse
- Click on menu New -> Others
- In wizards type "Java Project" and Select "Java Project"
- Click Next
- Enter project name as "SpringAOPAllAdvicesExample", then click Next
- Goto Libraries tab, then click on Add External JARs, then select Spring's 21 Framework Jars aopalliance-1.0.jar, aspectjtools-1.6.6.jar and commons-logging-1.1.jar.
- Click Finish.
|
Step.2 Project Explorer Preview
|
package com.springexample;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class RunMyProgram {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
StudentHolder studentHolder = (StudentHolder) context.getBean("studentHolder");
studentHolder.displayStudentDetails();
}
}
|
package com.springexample;
public class StudentHolder {
Student student;
public Student getStudent() {
return student;
}
public void setStudent(Student student) {
this.student = student;
}
public void displayStudentDetails(){
System.out.println("Student Details");
System.out.println("---------------");
System.out.println("Student No: "+student.getStudentNo());
System.out.println("Student Name: "+student.getStudentName());
}
}
|
<?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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="student" class="com.springexample.Student">
<property name="studentNo" value="1001" />
<property name="studentName" value="John Peter" />
</bean>
<bean id="studentHolder" class="com.springexample.StudentHolder">
<property name="student" value="#{student}" />
</bean>
<bean id="mylogger" class="com.springexample.MyLogger" />
<aop:config>
<aop:aspect ref="mylogger">
<aop:pointcut expression="execution(* com.springexample.StudentHolder.displayStudentDetails(..))" id="studentDisplayLogsPnt"/>
<aop:before pointcut-ref="studentDisplayLogsPnt" method="beforeDisplay" />
<aop:after pointcut-ref="studentDisplayLogsPnt" method="afterDisplay" />
<aop:after-returning pointcut-ref="studentDisplayLogsPnt" method="afterReturning"/>
<aop:after-throwing pointcut-ref="studentDisplayLogsPnt" method="afterThrowing"/>
</aop:aspect>
</aop:config>
</beans>
|
package com.springexample;
public class MyLogger {
public void beforeDisplay(){
System.out.println("Before display!");
}
public void afterDisplay(){
System.out.println("After display!");
}
public void afterThrowing(){
System.out.println("After throwing!");
}
public void afterReturning(){
System.out.println("After returning!");
}
}
|
package com.springexample;
public class Student {
private int studentNo;
private String studentName;
public int getStudentNo() {
return studentNo;
}
public void setStudentNo(int studentNo) {
this.studentNo = studentNo;
}
public String getStudentName() {
return studentName;
}
public void setStudentName(String studentName) {
this.studentName = studentName;
}
}
|
Output
Before display!
Student Details
---------------
Student No: 1001
Student Name: John Peter
After display!
After returning!
|