Spring AOP - XML ​​Tabanlı Uygulama

Bu bölümde, Spring AOP Framework kullanarak gerçek AOP uygulamalarını yazacağız. İlk örneğinizi Spring-WS çerçevesini kullanarak yazmaya başlamadan önce, Spring AOP ortamınızı Spring Web Services - Ortam Kurulumu bölümünde açıklandığı gibi doğru şekilde kurduğunuzdan emin olmalısınız .

Şimdi, AOP kavramlarını gösterecek basit bir konsol tabanlı Bahar AOP Uygulaması yazmaya devam edin.

Proje Oluşturun

Step 1 - Bir komut konsolu açın, C: \ MVN dizinine gidin ve aşağıdakileri yürütün mvn komut.

C:\MVN>mvn archetype:generate -DgroupId = com.tutorialspoint -DartifactId = Student
	-DarchetypeArtifactId = maven-archetype-quickstart -DinteractiveMode = false

Maven işlemeye başlayacak ve eksiksiz Java uygulaması proje yapısını oluşturacaktır.

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> maven-archetype-plugin:2.4:generate (default-cli) > generate-sources
@ standalone-pom >>>
[INFO]
[INFO] <<< maven-archetype-plugin:2.4:generate (default-cli) < generate-sources
@ standalone-pom <<<
[INFO]
[INFO] --- maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom --
-
[INFO] Generating project in Batch mode
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/archetypes/ma
ven-archetype-quickstart/1.0/maven-archetype-quickstart-1.0.jar
Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/archetypes/mav
en-archetype-quickstart/1.0/maven-archetype-quickstart-1.0.jar (5 KB at 1.1 KB/s
ec)
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/archetypes/ma
ven-archetype-quickstart/1.0/maven-archetype-quickstart-1.0.pom
Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/archetypes/mav
en-archetype-quickstart/1.0/maven-archetype-quickstart-1.0.pom (703 B at 1.2 KB/
sec)
[INFO] -------------------------------------------------------------------------
---
[INFO] Using following parameters for creating project from Old (1.x) Archetype:
 maven-archetype-quickstart:1.0
[INFO] -------------------------------------------------------------------------
---
[INFO] Parameter: groupId, Value: com.tutorialspoint
[INFO] Parameter: packageName, Value: com.tutorialspoint
[INFO] Parameter: package, Value: com.tutorialspoint
[INFO] Parameter: artifactId, Value: Student
[INFO] Parameter: basedir, Value: C:\MVN
[INFO] Parameter: version, Value: 1.0-SNAPSHOT
[INFO] project created from Old (1.x) Archetype in dir: C:\MVN\Student
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:17 min
[INFO] Finished at: 2017-02-19T21:11:14+05:30
[INFO] Final Memory: 15M/114M
[INFO] ------------------------------------------------------------------------

Step 2- C: / MVN dizinine gidin. Öğrenci adında (artifactId'de belirtildiği gibi) bir Java uygulaması projesinin oluşturulduğunu göreceksiniz. POM.xml dosyasını Spring-AOP bağımlılıklarını içerecek şekilde güncelleyin. MainApp.java, Student.java ve Logging.java dosyalarını ekleyin.

POM.xml

<project xmlns = "http://maven.apache.org/POM/4.0.0" 
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0 
   http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.tutorialspoint</groupId>
   <artifactId>Student</artifactId>
   <packaging>jar</packaging>
   <version>1.0-SNAPSHOT</version>
   <name>Student</name>
   <url>http://maven.apache.org</url>
   
   <dependencies>
      <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
         <version>3.8.1</version>
         <scope>test</scope>
      </dependency>
      
      <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-aop</artifactId>
         <version>4.1.0.RELEASE</version>
      </dependency>
      
      <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-context</artifactId>
         <version>4.1.4.RELEASE</version>
      </dependency>
      
      <dependency>
         <groupId>org.aspectj</groupId>
         <artifactId>aspectjweaver</artifactId>
         <version>1.6.8</version>
      </dependency>
      
   </dependencies>
</project>
package com.tutorialspoint;

public class Logging {

   /** 
    * This is the method which I would like to execute
    * before a selected method execution.
    */
   public void beforeAdvice() {
      System.out.println("Going to setup student profile.");
   }

   /** 
    * This is the method which I would like to execute
    * after a selected method execution.
    */
   public void afterAdvice() {
      System.out.println("Student profile has been setup.");
   }

   /** 
    * This is the method which I would like to execute
    * when any method returns.
    */
   public void afterReturningAdvice(Object retVal){
      System.out.println("Returning:" + retVal.toString() );
   }

   /**
    * This is the method which I would like to execute
    * if there is an exception raised.
    */
   public void AfterThrowingAdvice(IllegalArgumentException ex) {
      System.out.println("There has been an exception: " + ex.toString());   
   }
   
}

Aşağıdakilerin içeriği Student.java dosya.

package com.tutorialspoint;

public class Student {
   private Integer age;
   private String name;

   public void setAge(Integer age) {
      this.age = age;
   }
   public Integer getAge() {
      System.out.println("Age : " + age );
      return age;
   }

   public void setName(String name) {
      this.name = name;
   }
   public String getName() {
      System.out.println("Name : " + name );
      return name;
   }
   
   public void printThrowException(){
      System.out.println("Exception raised");
      throw new IllegalArgumentException();
   }
}

Aşağıdakilerin içeriği MainApp.java dosya.

package com.tutorialspoint;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class MainApp {
   public static void main(String[] args) {
      ApplicationContext context = 
         new ClassPathXmlApplicationContext("Beans.xml");

      Student student = (Student) context.getBean("student");

      student.getName();
      student.getAge();
      
      student.printThrowException();
   }
}

Step 3 - Yapılandırma dosyasını ekleyin Beans.xml altında src > main > resources Klasör.

<?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-3.0.xsd 
   http://www.springframework.org/schema/aop 
   http://www.springframework.org/schema/aop/spring-aop-3.0.xsd ">

   <aop:config>
      <aop:aspect id = "log" ref = "logging">
         <aop:PointCut id = "selectAll" 
            expression = "execution(* com.tutorialspoint.*.*(..))"/>
         <aop:before PointCut-ref = "selectAll" method = "beforeAdvice"/>
         <aop:after PointCut-ref = "selectAll" method = "afterAdvice"/>
         <aop:after-returning PointCut-ref = "selectAll" 
            returning = "retVal"
            method = "afterReturningAdvice"/>
         <aop:after-throwing PointCut-ref = "selectAll" 
            throwing = "ex"
            method = "AfterThrowingAdvice"/>
      </aop:aspect>
   </aop:config>

   <!-- Definition for student bean -->
   <bean id = "student" class = "com.tutorialspoint.Student">
      <property name = "name"  value = "Zara" />
      <property name = "age"  value = "11"/>      
   </bean>

   <!-- Definition for logging aspect -->
   <bean id = "logging" class = "com.tutorialspoint.Logging"/> 
      
</beans>

Step 4 - Komut konsolunu açın, C: \ MVN dizinine gidin ve aşağıdakileri yürütün mvn komut.

C:\MVN>Student> mvn package

Maven, gerekli kitaplıkları işlemeye ve indirmeye başlayacaktır.

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Student 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven
-jar-plugin/2.4/maven-jar-plugin-2.4.pom
Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
jar-plugin/2.4/maven-jar-plugin-2.4.pom (6 KB at 2.2 KB/sec)
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven
-jar-plugin/2.4/maven-jar-plugin-2.4.jar
Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
jar-plugin/2.4/maven-jar-plugin-2.4.jar (34 KB at 31.6 KB/sec)
Downloading: https://repo.maven.apache.org/maven2/org/springframework/spring-aop
/4.1.0.RELEASE/spring-aop-4.1.0.RELEASE.pom
Downloaded: https://repo.maven.apache.org/maven2/org/springframework/spring-aop/
4.1.0.RELEASE/spring-aop-4.1.0.RELEASE.pom (3 KB at 3.7 KB/sec)
Downloading: https://repo.maven.apache.org/maven2/org/springframework/spring-bea
ns/4.1.0.RELEASE/spring-beans-4.1.0.RELEASE.pom
Downloaded: https://repo.maven.apache.org/maven2/org/springframework/spring-bean
s/4.1.0.RELEASE/spring-beans-4.1.0.RELEASE.pom (3 KB at 4.1 KB/sec)
Downloading: https://repo.maven.apache.org/maven2/org/springframework/spring-cor
e/4.1.0.RELEASE/spring-core-4.1.0.RELEASE.pom
Downloaded: https://repo.maven.apache.org/maven2/org/springframework/spring-core
/4.1.0.RELEASE/spring-core-4.1.0.RELEASE.pom (3 KB at 4.0 KB/sec)
Downloading: https://repo.maven.apache.org/maven2/org/springframework/spring-aop
/4.1.0.RELEASE/spring-aop-4.1.0.RELEASE.jar
Downloading: https://repo.maven.apache.org/maven2/org/springframework/spring-cor
e/4.1.0.RELEASE/spring-core-4.1.0.RELEASE.jar
Downloading: https://repo.maven.apache.org/maven2/org/springframework/spring-bea
ns/4.1.0.RELEASE/spring-beans-4.1.0.RELEASE.jar
Downloaded: https://repo.maven.apache.org/maven2/org/springframework/spring-aop/
4.1.0.RELEASE/spring-aop-4.1.0.RELEASE.jar (351 KB at 43.9 KB/sec)
Downloaded: https://repo.maven.apache.org/maven2/org/springframework/spring-bean
s/4.1.0.RELEASE/spring-beans-4.1.0.RELEASE.jar (685 KB at 37.5 KB/sec)
Downloaded: https://repo.maven.apache.org/maven2/org/springframework/spring-core
/4.1.0.RELEASE/spring-core-4.1.0.RELEASE.jar (982 KB at 47.1 KB/sec)
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ Student --
-
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources,
i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\MVN\Student\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ Student ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. b
uild is platform dependent!
[INFO] Compiling 1 source file to C:\MVN\Student\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ St
udent ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources,
i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\MVN\Student\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ Student
 ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. b
uild is platform dependent!
[INFO] Compiling 1 source file to C:\MVN\Student\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ Student ---
[INFO] Surefire report directory: C:\MVN\Student\target\surefire-reports
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/sure
fire-junit3/2.12.4/surefire-junit3-2.12.4.pom
Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/suref
ire-junit3/2.12.4/surefire-junit3-2.12.4.pom (2 KB at 1.3 KB/sec)
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/sure
fire-junit3/2.12.4/surefire-junit3-2.12.4.jar
Downloaded: https://repo.maven.apache.org/maven2/org/apache/maven/surefire/suref
ire-junit3/2.12.4/surefire-junit3-2.12.4.jar (26 KB at 27.7 KB/sec)

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running com.tutorialspoint.AppTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ Student ---
Downloading: https://repo.maven.apache.org/maven2/classworlds/classworlds/1.1-al
pha-2/classworlds-1.1-alpha-2.jar
Downloaded: https://repo.maven.apache.org/maven2/classworlds/classworlds/1.1-alp
ha-2/classworlds-1.1-alpha-2.jar (37 KB at 35.8 KB/sec)
[INFO] Building jar: C:\MVN\Student\target\Student-1.0-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 38.441 s
[INFO] Finished at: 2017-02-19T21:18:59+05:30
[INFO] Final Memory: 18M/109M
[INFO] ------------------------------------------------------------------------

Eclipse'de Projeyi İçe Aktar

Step 1 - Eclipse'i açın.

Step 2 - Seçin File → Import → seçeneği.

Step 3- Maven Projeleri Seçeneğini seçin. İleri Düğmesine tıklayın.

Step 4 - Öğrenci projesinin Maven kullanılarak oluşturulduğu Proje konumunu seçin.

Step 5 - Bitir Düğmesine tıklayın.

Projeyi Çalıştır

Kaynak ve yapılandırma dosyalarını oluşturmayı tamamladığınızda, uygulamanızı çalıştırın. Uygulamanızda MainApp.java'ya sağ tıklayın verun as Java Applicationkomut. Uygulamanızda her şey yolundaysa, aşağıdaki mesajı yazdıracaktır.

Going to setup student profile.
Name : Zara
Student profile has been setup.
Returning:Zara
Going to setup student profile.
Age : 11
Student profile has been setup.
Returning:11
Going to setup student profile.
Exception raised
Student profile has been setup.
There has been an exception: java.lang.IllegalArgumentException
Exception in thread "main" java.lang.IllegalArgumentException
   at com.tutorialspoint.Student.printThrowException(Student.java:25)
   
   at com.tutorialspoint.Student$$FastClassBySpringCGLIB$$7dc55815.invoke(<generated>)
   
   at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
   
   at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
   
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
   
   at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:52)
   
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
   
   at org.springframework.aop.aspectj.AspectJAfterAdvice.invoke(AspectJAfterAdvice.java:43)
   
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
   
   at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:52)
   
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
   
   at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:58)
   
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
   
   at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
   
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
   
   at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
   
   at com.tutorialspoint.Student$$EnhancerBySpringCGLIB$$56a970f2.printThrowException(<generated>)
   
   at com.tutorialspoint.MainApp.main(MainApp.java:16)
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