Spring AOP-基于XML的应用程序

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📜 Spring AOP-基于XML的应用程序

📅 最后修改于: 2020-11-11 05:17:26 🧑 作者: Mango

在本章中，我们将使用Spring AOP Framework编写实际的AOP应用程序。在开始使用Spring-WS框架编写第一个示例之前，必须确保已经按照Spring Web Services-Environment Setup一章中的说明正确设置了Spring AOP环境。

现在，继续编写一个简单的控制台式Spring AOP应用程序，它将演示AOP概念。

建立专案

步骤1-打开命令控制台，进入C：\ MVN目录，然后执行以下mvn命令。

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

Maven将开始处理并将创建完整的Java应用程序项目结构。

[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] ------------------------------------------------------------------------

步骤2-转到C：/ MVN目录。您将看到创建了一个名为Student的Java应用程序项目(在artifactId中指定)。更新POM.xml以包括Spring-AOP依赖项。添加MainApp.java，Student.java和Logging.java文件。

POM.xml


   4.0.0
   com.tutorialspoint
   Student
   jar
   1.0-SNAPSHOT
   Student
   http://maven.apache.org
   
   
      
         junit
         junit
         3.8.1
         test
      
      
      
         org.springframework
         spring-aop
         4.1.0.RELEASE
      
      
      
         org.springframework
         spring-context
         4.1.4.RELEASE
      
      
      
         org.aspectj
         aspectjweaver
         1.6.8
      
      
   

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());   
   }
   
}

以下是Student.java文件的内容。

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();
   }
}

以下是MainApp.java文件的内容。

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();
   }
}

步骤3-在src> main> resources文件夹下添加配置文件Beans.xml 。

步骤4-打开命令控制台，转到C：\ MVN目录，然后执行以下mvn命令。

C:\MVN>Student> mvn package

Maven将开始处理和下载所需的库。

[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] ------------------------------------------------------------------------

在Eclipse中导入项目

步骤1-打开Eclipse。

步骤2-选择文件→导入→选项。

步骤3-选择Maven项目选项。单击下一步按钮。

步骤4-选择项目位置，使用Maven在其中创建Student项目。

步骤5-单击完成按钮。

运行项目

完成创建源文件和配置文件后，运行您的应用程序。右键单击应用程序中的MainApp.java，然后使用“以Java应用程序身份运行”命令。如果您的应用程序一切正常，它将打印以下消息。

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()
   
   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()
   
   at com.tutorialspoint.MainApp.main(MainApp.java:16)