Spring4 Learning Note-AOP (profile-based approach)

The introduced jar package is the same as the jar package introduced in the annotation-based approach

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Arithmeticcalculator interface

Package Com.spring.aop.impl.xml;public interface Arithmeticcalculator {public int add (int i, int j);p Ublic int sub (int i, Int j);p ublic int mul (int i, int j);p ublic int div (int i, int j);}

< /span> interface implementation class  arithmeticcalculatorimpl.java

package com.spring.aop.impl.xml;public class  arithmeticcalculatorimpl implements arithmeticcalculator{@Overridepublic  int add (int  I, INT J)  {int result = i + j;return result;} @Overridepublic  int sub (int i, int j)  {int result = i -  j;return result;} @Overridepublic  int mul (int i, int j)  {int result = i *  j;return result;} @Overridepublic  int div (int i, int j)  {int result = i /  j;return result;}} 

< /span> slice class  loggingaspect.java

package com.spring.aop.impl.xml;import java.util.arrays;import java.util.list;import  org.aspectj.lang.joinpoint;import org.aspectj.lang.proceedingjoinpoint;public class  Loggingaspect {public void beforemethod (Joinpoint joinpoint)  {String methodName  = joinpoint.getsignature (). GetName (); List<object>args = arrays.aslist (Joinpoint.getargs ()); System.out.println ("Pre-notification:the method " + methodname + " begins with "  +  args);} Public void aftermethod (Joinpoint joinpoint)  {String methodName =  Joinpoint.getsignature (). GetName ();//list<object>args = arrays.aslist (Joinpoint.getargs ());    in the Post notification method, you can get to the parameter System.out.println ("Post-notification:the method " + methodname + " ends   ");} Public void afterreturnning (Joinpoint joinpoint, object result)  {String  methodname  = joinpoint.getsignature (). GetName (); SYSTEM.OUT.PRINTLN ("Return notification:the method " + methodname + " ends with "  +  result);} Public void afterthrowing (joinpoint joinpoint, exception e)  {String  Methodname = joinpoint.getsignature (). GetName (); SYSTEM.OUT.PRINTLN ("Exception notification:the method " + methodname + " occurs exception " &NBSP;+&NBSP;E);} Public object aroundmethod (Proceedingjoinpoint point)  {object result = null ; String methodname = point.getsignature (). GetName () try {//Pre-notification System.out.println ("the  method  "+ methodname +"  begins with  " + arrays.aslist" ( Point.getargs ()));//Execute Target Method Result = point.proceed ();//Translation Notification System.out.println ("the method " +  methodname + " ends with "  + result);}  catch  (throwable e)  {//exception Notification SysteM.out.println ("the method " + methodname + " occurs exception "  + e ); Throw new runtimeexception (e);} Post-Notification System.out.println ("the method " + methodname + " ends"); return result;}}

Slice class Validationaspect.java

Package Com.spring.aop.impl.xml;import Java.util.arrays;import Org.aspectj.lang.joinpoint;public class validationaspect {public void Validateargs (Joinpoint joinpoint) {System.out.println ("Validate:" + arrays.aslist ( Joinpoint.getargs ()));}}

Applicationcontext-xml.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 "xsi:schemalocation=" http://www.springframework.org/schema/beans http://www.springframework.org /schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/ Schema/aop/spring-aop-4.1.xsd "><!--  Configure bean --><bean id=" Arithmeticcalculator "  class= "Com.spring.aop.impl.xml.ArithmeticCalculatorImpl" ></bean><!--  configuration facets bean --> <bean id= "Loggingaspect"  class= "Com.spring.aop.impl.xml.LoggingAspect" ></bean><bean  id= "Validationaspect"  class= "Com.spring.aop.impl.xml.ValidationAspect" ></bean><!--   Configure aop --><aop:config><!--  Configure Pointcut expression  --><aop:pointcut expression= " Execution (* com.spring.aop.impl.xml.arithmeticcalculator.* (..)) "  id= "Pointcut"/><!--  configuration facets and notifications, using order to specify priority  --><aop:aspect ref= "Loggingaspect"  order= "1" ><!--  Surround notification  --><!--  <aop:around method= "Aroundmethod"  pointcut-ref= "Pointcut"/>--><!--  pre-notification  --><aop:before method= "Beforemethod"  pointcut-ref= "Pointcut"/><!--  Post notification  --><aop:after method= "Aftermethod"   pointcut-ref= "Pointcut"/><!--  Exception notification  --><aop:after-throwing method= "Afterthrowing"   pointcut-ref= "Pointcut"  throwing= "E"/><!--  return notification  --><aop:after-returning  method= "afterreturnning"  pointcut-ref= "pointcut"  returning= "Result"/></aop:aspect> <aop:aspect ref= "Validationaspect"  order= "2" ><!--  pre-notification  --><aop:before  Method= "Validateargs"  pointcut-ref= "Pointcut"/></aop:aspect></aop:config></beans> 

main.java

package com.spring.aop.impl.xml;import  org.springframework.context.applicationcontext;import  Org.springframework.context.support.classpathxmlapplicationcontext;public class main {public  static void main (String[] args)  {//create SPRING IOC container applicationcontext  Applicationcontext = new classpathxmlapplicationcontext ("Applicationcontext-xml.xml");// Gets the bean instance Arithmeticcalculator arithmeticcalculator = applicationcontext.getbean from the IOC container ( Arithmeticcalculator.class); Int result = arithmeticcalculator.add (4, 6); SYSTEM.OUT.PRINTLN (result); Result = arithmeticcalculator.sub (4, 6); SYSTEM.OUT.PRINTLN (result); SYSTEM.OUT.PRINTLN (result); Result = arithmeticcalculator.mul (4, 6); SYSTEM.OUT.PRINTLN (result); SYSTEM.OUT.PRINTLN (result); Result = arithmeticcalculator.div (4, 0); SYSTEM.OUT.PRINTLN (result);}} 

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Spring4 Learning Note-AOP (profile-based approach)