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大江东流去，游子日月长
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‎.idea/compiler.xml

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‎.idea/modules.xml

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‎.idea/workspace.xml

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‎README.md

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[springidol]()
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## 3. 最小化Spring XML配置
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* 4 种自动装配 byName, byType, contructor, autodetect
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* 可以在一个应用上下文中定义多个配置文件，每个配置文件设置自己的默认自动装配策略(default-autowire)
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* 如果使用constructor自动装配策略，就不能混合使用constructor-arg
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* 注解方式可以实现更细粒度的自动装配，Spring容器默认禁用注解装配，要在配置文件中开启
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* \<context:component-scan> 配置自动扫描
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* 在基于Java的配置中使用@Configuration注解的Java类，等价于XML配置中的\<beans>元素
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[springidol-autodiscovery]()
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## 4. 面向切面Spring
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* Spring只支持方法连接点
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* 体会切面的应用场景
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* before, after, around advice
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* 为advice传递参数
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* introduction为已有的接口引入新接口
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* at aspect
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[springidol-aop]()
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[springidol-aspectj]()
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## 5.
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‎pom.xml

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<modules>
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<module>knights</module>
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<module>springidol</module>
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<module>springidol-autodiscovery</module>
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<module>springidol-aop</module>
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<module>springidol-aspectj</module>
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</modules>
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‎springidol-aop/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.vonzhou.springinaction</groupId>
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<artifactId>springidol-aop</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<spring.group>org.springframework</spring.group>
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<spring.version>3.0.2.RELEASE</spring.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>${spring.group}</groupId>
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<artifactId>spring-context</artifactId>
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<version>${spring.version}</version>
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</dependency>
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<dependency>
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<groupId>${spring.group}</groupId>
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<artifactId>spring-aop</artifactId>
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<version>${spring.version}</version>
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</dependency>
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<dependency>
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<groupId>org.aspectj</groupId>
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<artifactId>aspectjweaver</artifactId>
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<version>1.6.4</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.7</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎springidol-aop/springidol-aop.iml

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<?xml version="1.0" encoding="UTF-8"?>
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<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5" inherit-compiler-output="false">
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<output url="file://$MODULE_DIR$/target/classes" />
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
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<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="library" name="Maven: org.springframework:spring-context:3.0.2.RELEASE" level="project" />
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<orderEntry type="library" name="Maven: org.springframework:spring-beans:3.0.2.RELEASE" level="project" />
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<orderEntry type="library" name="Maven: org.springframework:spring-core:3.0.2.RELEASE" level="project" />
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<orderEntry type="library" name="Maven: commons-logging:commons-logging:1.1.1" level="project" />
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<orderEntry type="library" name="Maven: org.springframework:spring-expression:3.0.2.RELEASE" level="project" />
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<orderEntry type="library" name="Maven: org.springframework:spring-asm:3.0.2.RELEASE" level="project" />
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<orderEntry type="library" name="Maven: org.springframework:spring-aop:3.0.2.RELEASE" level="project" />
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<orderEntry type="library" name="Maven: aopalliance:aopalliance:1.0" level="project" />
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<orderEntry type="library" name="Maven: org.aspectj:aspectjweaver:1.6.4" level="project" />
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<orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.7" level="project" />
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</component>
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</module>

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/AroundAudience.java

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package com.vonzhou.springinaction.springidolaop;
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import org.aspectj.lang.ProceedingJoinPoint;
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public class AroundAudience {
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public void watchPerformance(ProceedingJoinPoint joinpoint) {
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try {
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System.out.println("The audience is taking their seats.");
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System.out.println("The audience is turning off their cellphones");
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long start = System.currentTimeMillis(); //<co id="co_beforeProceed"/>
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joinpoint.proceed(); //<co id="co_proceed"/>
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long end = System.currentTimeMillis(); // <co id="co_afterProceed"/>
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System.out.println("CLAP CLAP CLAP CLAP CLAP");
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System.out.println("The performance took " + (end - start)
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+ " milliseconds.");
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} catch (Throwable t) {
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System.out.println("Boo! We want our money back!"); //<co id="co_afterException"/>
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}
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Audience.java

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package com.vonzhou.springinaction.springidolaop;
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import org.aspectj.lang.ProceedingJoinPoint;
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public class Audience {
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// 表演之前
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public void takeSeats() { //<co id="co_takeSeats"/>
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System.out.println("The audience is taking their seats.");
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}
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// 表演之前
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public void turnOffCellPhones() { //<co id="co_turnOffCellPhones"/>
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System.out.println("The audience is turning off their cellphones");
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}
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// 表演之后
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public void applaud() { //<co id="co_applaud"/>
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System.out.println("CLAP CLAP CLAP CLAP CLAP");
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}
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// 表演失败之后
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public void demandRefund() { //<co id="co_demandRefund"/>
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System.out.println("Boo! We want our money back!");
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Contestant.java

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package com.vonzhou.springinaction.springidolaop;
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public interface Contestant {
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void receiveAward();
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/GraciousContestant.java

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package com.vonzhou.springinaction.springidolaop;
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/**
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* gracious 高尚的
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*/
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public class GraciousContestant implements Contestant {
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public void receiveAward() {
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System.out.println("Why, thank you all very much!");
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Guitar.java

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package com.vonzhou.springinaction.springidolaop;
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import static java.lang.Thread.sleep;
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public class Guitar implements Instrument {
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public void play() {
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try{
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sleep(1000);
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}catch (Exception e){
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e.printStackTrace();
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}
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System.out.println("Strum strum strum");
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Instrument.java

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package com.vonzhou.springinaction.springidolaop;
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public interface Instrument {
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public void play();
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Instrumentalist.java

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package com.vonzhou.springinaction.springidolaop;
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public class Instrumentalist implements Performer {
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public void perform() throws PerformanceException {
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instrument.play();
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}
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private Instrument instrument;
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public void setInstrument(Instrument instrument) {
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this.instrument = instrument;
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}
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public Instrument getInstrument() {
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return instrument;
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Magician.java

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package com.vonzhou.springinaction.springidolaop;
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public class Magician implements MindReader {
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private String thoughts;
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public void interceptThoughts(String thoughts) {
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System.out.println("Intercepting volunteer's thoughts");
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this.thoughts = thoughts;
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}
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public String getThoughts() {
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return thoughts;
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/MagicianMain.java

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package com.vonzhou.springinaction.springidolaop;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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/**
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* P99 sneaky : 卑鄙的
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* Created by vonzhou on 16/3/31.
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*/
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public class MagicianMain {
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public static void main(String[] args) throws Exception{
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ApplicationContext context = new ClassPathXmlApplicationContext("sneaky-magician.xml");
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Thinker volunteer = (Thinker)context.getBean("volunteer");
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volunteer.thinkOfSomething("I want to play basketball, en");
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/MindReader.java

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package com.vonzhou.springinaction.springidolaop;
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public interface MindReader {
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void interceptThoughts(String thoughts);
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String getThoughts();
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/PerformanceException.java

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package com.vonzhou.springinaction.springidolaop;
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public class PerformanceException extends Exception {
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private static final long serialVersionUID = 1L;
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Performer.java

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package com.vonzhou.springinaction.springidolaop;
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public interface Performer {
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void perform() throws PerformanceException;
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/RehearsalMain.java

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package com.vonzhou.springinaction.springidolaop;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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/**
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* 排练
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* Created by vonzhou on 16/3/31.
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*/
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public class RehearsalMain {
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public static void main(String[] args) throws Exception{
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ApplicationContext context = new ClassPathXmlApplicationContext("spring-idol-around.xml");
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Performer performer = (Performer)context.getBean("eddie");
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performer.perform();
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Stutter.java

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package com.vonzhou.springinaction.springidolaop;
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import org.aspectj.lang.ProceedingJoinPoint;
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public class Stutter {
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public Object stutter(ProceedingJoinPoint call) throws Throwable {
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call.proceed();
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call.proceed();
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call.proceed();
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call.proceed();
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call.proceed();
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call.proceed();
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call.proceed();
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call.proceed();
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return call.proceed();
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}
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Thinker.java

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package com.vonzhou.springinaction.springidolaop;
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public interface Thinker {
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void thinkOfSomething(String thoughts);
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}

‎springidol-aop/src/main/java/com/vonzhou/springinaction/springidolaop/Volunteer.java

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package com.vonzhou.springinaction.springidolaop;
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public class Volunteer implements Thinker {
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private String thoughts;
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public void thinkOfSomething(String thoughts) {
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this.thoughts = thoughts;
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}
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public String getThoughts() {
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return thoughts;
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}
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}

‎springidol-aop/src/main/resources/sneaky-magician.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:aop="http://www.springframework.org/schema/aop"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans.xsd
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http://www.springframework.org/schema/aop
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http://www.springframework.org/schema/aop/spring-aop.xsd">
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<bean id="volunteer"
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class="com.vonzhou.springinaction.springidolaop.Volunteer" />
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<bean id="magician"
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class="com.vonzhou.springinaction.springidolaop.Magician" />
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<aop:config>
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<aop:aspect ref="magician">
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<aop:pointcut id="thinking"
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expression="execution(*
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com.vonzhou.springinaction.springidolaop.Thinker.thinkOfSomething(String))
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and args(thoughts)" />
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<aop:before
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pointcut-ref="thinking"
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method="interceptThoughts"
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arg-names="thoughts" />
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</aop:aspect>
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</aop:config>
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</beans>

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