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Intellij Spring - AOP 적용

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AOP 적용

  • Dependency 추가

    • pom.xml
        <?xml version="1.0" encoding="UTF-8"?>
  <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/xsd/maven-4.0.0.xsd">
          ...

          <properties>
                  ...
                  <org.aspectj-version>1.9.5</org.aspectj-version>
          </properties>

          <dependencies>
                  ...
					
                  <dependency>
                          <groupId>org.aspectj</groupId>
                          <artifactId>aspectjrt</artifactId>
                          <version>${org.aspectj-version}</version>
                  </dependency>
                  <dependency>
                          <groupId>org.aspectj</groupId>
                          <artifactId>aspectjweaver</artifactId>
                          <version>${org.aspectj-version}</version>
                  </dependency>
                  <dependency>
                          <groupId>org.aspectj</groupId>
                          <artifactId>aspectjtools</artifactId>
                          <version>${org.aspectj-version}</version>
                  </dependency>
          </dependencies>

  </project>

  • xml 이용

    • applicationContext.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.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
          <bean id="logAop" class="com.ex.spring.advices.LogAop"/>

          <aop:config>
                  <aop:aspect id="logger" ref="logAop">
  <!--            <aop:pointcut id="publicM" expression="within(com.ex.spring.model.*)"/>-->
                          <aop:pointcut id="publicM" expression="execution(* com.ex.spring.model..show*(..))"/>
                          <aop:around pointcut-ref="publicM" method="loggerAop"/>
                  </aop:aspect>
          </aop:config>


          <bean id="person" class="com.ex.spring.model.Person">
                  <property name="age" value="50"/>
                  <property name="name" value="abc"/>
          </bean>

  </beans>
    • LogAop.java
        package com.ex.spring.advices;

  import org.aspectj.lang.ProceedingJoinPoint;

  public class LogAop {
          public Object loggerAop(ProceedingJoinPoint joinPoint) throws Throwable{
                  String signatureStr = joinPoint.getSignature().toShortString();
                  System.out.println(signatureStr+"is start.");
                  long st = System.currentTimeMillis();
                  try{
                          Object obj = joinPoint.proceed();
                          return obj;
                  }finally {
                          long et = System.currentTimeMillis();
                          System.out.println(signatureStr + " is finished.");
                          System.out.println(signatureStr + " 경과시간 : "+(et-st));
                  }

          }
  }
    • Person.java
        package com.ex.spring.model;

  public class Person{
          int age;
          String name;

          public Person(int age, String name) {
                  this.age = age;
                  this.name = name;
          }

          public Person() {
          }

          public int getAge() {
                  System.out.println("getAge()");
                  return age;
          }

          public void setAge(int age) {
                  this.age = age;
          }

          public String getName() {
                  System.out.println("getName()");
                  return name;
          }

          public void setName(String name) {
                  this.name = name;
          }

          public void showInfo() {
                  System.out.println("name : "+name+" age : "+age);
          }
  }
    • MController.java
       package com.ex.spring.controller;

 import com.ex.spring.model.Person;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.servlet.ModelAndView;

 import java.util.Locale;

 @Controller
 public class MController {
         @Autowired
         private Person person;

         @RequestMapping("/index")
         public ModelAndView home(Locale locale) {
                 ModelAndView mv = new ModelAndView();
                 mv.addObject("person", person);
                 mv.setViewName("index");

                 return mv;
         }
 }
    • index.jsp
        <%@ page contentType="text/html;charset=UTF-8" language="java" %>
  <html>
      <head>
          <title>Index.jsp</title>
      </head>
      <body>
      Name : ${person.name} <br/>
      Age : ${person.age} <br/>
      ${person.showInfo()}

      </body>
  </html>

  • @Aspect 이용

    • applicationContext.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.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
          <aop:aspectj-autoproxy/>
	
          <bean id="annotationLogAop" class="com.ex.spring.advices.AnnotationLogAop"/>

          <bean id="person" class="com.ex.spring.model.Person">
                  <property name="age" value="50"/>
                  <property name="name" value="abc"/>
          </bean>

  </beans>
      <aop:aspectj-autoproxy/> 를 추가
    • AnnotationLogAop.java
        package com.ex.spring.advices;

  import org.aspectj.lang.ProceedingJoinPoint;
  import org.aspectj.lang.annotation.Around;
  import org.aspectj.lang.annotation.Aspect;
  import org.aspectj.lang.annotation.Before;
  import org.aspectj.lang.annotation.Pointcut;

  @Aspect
  public class AnnotationLogAop {

          @Pointcut("within(com.ex.spring.model.*)")
          public void pointcutMethod() {
          }

          @Around("pointcutMethod()")
          public Object loggerAop(ProceedingJoinPoint joinPoint) throws Throwable {
                  String signatureStr = joinPoint.getSignature().toShortString();
                  System.out.println(signatureStr + "is start.");
                  long st = System.currentTimeMillis();
                  try {
                          Object obj = joinPoint.proceed();
                          return obj;
                  } finally {
                          long et = System.currentTimeMillis();
                          System.out.println(signatureStr + " is finished.");
                          System.out.println(signatureStr + " 경과시간 : " + (et - st));
                  }

          }

          @Before("within(com.ex.spring.model.*)")
          public void beforeAdvice() {
                  System.out.println("beforeAdvice()");
          }
  }

  • @Component 이용

    • applicationContext.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"
               xmlns:context="http://www.springframework.org/schema/context"
               xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
          <aop:aspectj-autoproxy/>
	
          <context:component-scan base-package="com.ex.spring.advices" />

          <bean id="person" class="com.ex.spring.model.Person">
                  <property name="age" value="50"/>
                  <property name="name" value="abc"/>
          </bean>

  </beans>
    • AnnotationLogAop.java
        package com.ex.spring.advices;

  import org.aspectj.lang.ProceedingJoinPoint;
  import org.aspectj.lang.annotation.Around;
  import org.aspectj.lang.annotation.Aspect;
  import org.aspectj.lang.annotation.Before;
  import org.aspectj.lang.annotation.Pointcut;
  import org.springframework.stereotype.Component;

  @Component
  @Aspect
  public class AnnotationLogAop {

          @Pointcut("within(com.ex.spring.model.*)")
          public void pointcutMethod() {
          }

          @Around("pointcutMethod()")
          public Object loggerAop(ProceedingJoinPoint joinPoint) throws Throwable {
                  String signatureStr = joinPoint.getSignature().toShortString();
                  System.out.println(signatureStr + "is start.");
                  long st = System.currentTimeMillis();
                  try {
                          Object obj = joinPoint.proceed();
                          return obj;
                  } finally {
                          long et = System.currentTimeMillis();
                          System.out.println(signatureStr + " is finished.");
                          System.out.println(signatureStr + " 경과시간 : " + (et - st));
                  }

          }

          @Before("within(com.ex.spring.model.*)")
          public void beforeAdvice() {
                  System.out.println("beforeAdvice()");
          }
  }
신입SW인력을 위한 실전 자바(Java) 스프링(Spring) 동영상과정 제 10강 AOP-I
신입SW인력을 위한 실전 자바(Java) 스프링(Spring) 동영상과정 제 10강 AOP-II

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