Wu Yuxiong - natural born flyweight JAVA EE enterprise application development Struts2Sping4Hibernate Integrated Development Study Notes: Spring_JoinPoint

<?xml version="1.0" encoding="GBK"?>
<project name="spring" basedir="." default="">
    <property name="src" value="src"/>
    <property name="dest" value="classes"/>

    <path id="classpath">
        <fileset dir="../../lib">
            <include name="**/*.jar"/>
        </fileset>
        <pathelement path="${dest}"/>
    </path>

    <target name="compile" description="Compile all source code">
        <delete dir="${dest}"/>
        <mkdir dir="${dest}"/>
        <copy todir="${dest}">
            <fileset dir="${src}">
                <exclude name="**/*.java"/>
            </fileset>        
        </copy>
        <javac destdir="${dest}" debug="true" includeantruntime="yes"
            deprecation="false" optimize="false" failonerror="true">
            <src path="${src}"/>
            <classpath refid="classpath"/>
            <compilerarg value="-Xlint:deprecation"/>
        </javac>
    </target>

    <target name="run" description="Run the main class" depends="compile">
        <java classname="lee.BeanTest" fork="yes" failonerror="true">
            <classpath refid="classpath"/>
        </java>
    </target>

</project>

<?xml version="1.0" encoding="GBK"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop 
    HTTP: // www.springframework.org/schema/aop/spring-aop-4.0.xsd "> 
    <- specify automatic search Bean components, automated search section category ->! 
    < context: Scan-base- Component Package = "org.crazyit.app.service 
        , org.crazyit.app.aspect"> 
        <context: the include filter-type = "Annotation" 
            expression The = "org.aspectj.lang.annotation.Aspect "/> 
    </ context: the Component-Scan> 
    <- start @AspectJ support ->! 
    <AOP: AspectJ-autoproxy /> 
</ Beans>

package lee;

import org.springframework.context.*;
import org.springframework.context.support.*;

import org.crazyit.app.service.*;
/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [email protected]
 * @version  1.0
 */
public class BeanTest
{
    public static void main(String[] args)
    {
        // 创建Spring容器
        ApplicationContext ctx = new
            ClassPathXmlApplicationContext("beans.xml");
        Hello hello = ctx.getBean("hello" , Hello.class);
        hello.foo();
        hello.addUser("孙悟空" , "7788");
        World world = ctx.getBean("world" , World.class);
        world.bar();
    }
}

package org.crazyit.app.aspect;

import org.aspectj.lang.annotation.*;
import org.aspectj.lang.*;

import java.util.Arrays;
/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [email protected]
 * @version  1.0
 FourAdviceTestclasspublicthe @Aspect
defining aspects//* /

 
    //
{Around enhancement process defined 
    @Around ( "Execution (org.crazyit.app.service.impl *. *. * (..))" )
     public Object processTx (JP ProceedingJoinPoint)
         throws java.lang.Throwable 
    { 
        System.out.println ( "Around enhanced: before executing the target method to simulate begin transaction ..." );
         // access performance parameters of the target method 
        Object [] args = jp.getArgs ();
         // when there is objective method of execution parameters,
         // and the first parameter is a string parameter 
        IF (args! = null && args.length> 0 
            && args [0] .getClass () == string. class ) 
        { 
            // the first parameter to modify certain parameters of the method call
            args [0] = "[increased] prefix" + args [0 ]; 
        } 
        // execution of the target method, and return value after execution of the target method 
        Object RVT = jp.proceed (args); 
        System.out.println ( "Around enhancement: after executing the target method to simulate the end of the transaction ..." );
         // if rvt type is Integer, the rvt changed its square 
        IF (rvt =! null && rvt instanceof Integer) 
            rvt = (Integer) * RVT (Integer) RVT;
         return RVT; 
    } 
    // definition of reinforcement treatment Before 
    @Before (. ". Execution (org.crazyit.app.service.impl * * * (..))" )
     public  void  Authority (the JoinPoint JP )
    {
        System.out.println ( "the Before enhancement: Analog permission checks" );
         // returns the weaving method of enhancing the target process 
        System.out.println ( "Before enhancement: the target method is woven reinforcement treatment is:" 
            + jp.getSignature () getName ());.
         // parameter access execution of the target method 
        System.out.println ( "Before enhanced: parameters of the target method is:" 
            + Arrays.toString (jp.getArgs ()));
         / / access process is enhanced target object 
        System.out.println ( "Before enhanced: is woven into a target object processing is enhanced:" 
            + jp.getTarget ()); 
    } 
    // define AfterReturning enhancement process 
    @AfterReturning (pointcut = " Execution (org.crazyit.app.service.impl *. *. * (..)) " 
        , returning ="rvt ")
     Public  void log (the JoinPoint JP, Object RVT) 
    { 
        System.out.println ( "Enhanced afterReturning: acquiring the target method returns the value:" 
            + RVT); 
        System.out.println ( "afterReturning enhancement: Analog logging function ... " );
         // returns the weaving method of enhancing the target process 
        System.out.println (" afterReturning enhancement: the target method is woven reinforcement treatment is: " 
            + jp.getSignature (). getName ());
         // access the method of execution of the target parameter 
        System.out.println ( "afterReturning enhanced: parameters of the target method is:" 
            + of Arrays.toString (jp.getArgs ()));
         // access the target object of processing is enhanced 
        System.out.println ( "afterReturning enhanced: is knitted enhancement processing target audience is: "
            + jp.getTarget ()); 
    } 

    // define After enhancement process 
    @After ( "execution (* org.crazyit.app.service .. the .impl * * (..)) " )
     public  void release (the JoinPoint JP) 
    { 
        System.out.println ( " enhanced the after: release resources after the end of the simulation method ... " );
         // return is knitted the method of enhancing the target process 
        System.out.println ( "After enhancement: the target method is woven reinforcement treatment is:" 
            + jp.getSignature () getName ().);
         // access execution parameters of the target method 
        System.out. println ( "After enhanced: parameters of the target method is:" 
            + of Arrays.toString (jp.getArgs ()));
        // access the target object is enhanced process 
        System.out.println ( "After Enhanced: enhanced audience is woven into the process as follows:" 
            +  JP.getTarget ());
    } 
}

Package Penalty for org.crazyit.app.service; 

/ ** 
 * the Description: 
 * the website: <a href=" http://www.crazyit.org "> crazy Java league </a> 
 * the Copyright (C), 2001-2016, Yeeku.H.Lee 
 * This Program IS protected by a Copyright Laws. 
 * a Program the Name: 
 * a a Date: 
 * @author Yeeku.H.Lee [email protected] 
 * @version 1.0
  * / 
public  interface the Hello 
{ 
    // definition of a simple method, the business logic of the application method for simulating 
    void foo ();
     // define the addUser a () method of adding a user, simulate the application of the method 
    int the addUser (String name, String Pass); 
}

Package Penalty for org.crazyit.app.service; 

/ ** 
 * the Description: 
 * the website: <a href=" http://www.crazyit.org "> crazy Java league </a> 
 * the Copyright (C), 2001-2016, Yeeku.H.Lee 
 * This Program IS protected by a Copyright Laws. 
 * a Program the Name: 
 * a a Date: 
 * @author Yeeku.H.Lee [email protected] 
 * @version 1.0
  * / 
public  interface World 
{ 
    // definition of a simple method, the business logic of the application method for simulating 
    public  void bar (); 
}

package org.crazyit.app.service.impl;

import org.springframework.stereotype.Component;

import org.crazyit.app.service.*;
/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author Yeeku.H.Lee [email protected]
 * @version 1.0
 */
@Component("hello")
public class HelloImpl implements Hello
{ 
    // definition of a simple method, the business logic of the application method for simulating 
    public  void foo () 
    { 
        System.out.println ( "Hello execution component foo () method" ); 
    } 
    // define the addUser a () method, the analog application of the method to add a user 
    public  int addUser (String name, String Pass) 
    { 
        System.out.println ( "Hello execution component addUser Add user:" + name);
         return 20 is ; 
    } 
}

package org.crazyit.app.service.impl;

import org.springframework.stereotype.Component;
import org.crazyit.app.service.*;
/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author Yeeku.H.Lee [email protected]
 * @version 1.0
 */
@Component("world")
public class WorldImpl implements World
{
    // definition of a simple method, the business logic of the application method for simulating 
    public  void bar () 
    { 
        System.out.println ( "bar () method performed World assembly" ); 
    } 
}