spring - JavaConfig : Replacing aop:advisor and tx:advice

Question

我想知道是否可以将这段 xml 配置映射到 Spring JavaConfig:

<?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:tx="http://www.springframework.org/schema/tx" 
  xsi:schemaLocation="http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans.xsd
                      http://www.springframework.org/schema/aop     http://www.springframework.org/schema/aop/spring-aop.xsd
                      http://www.springframework.org/schema/tx      http://www.springframework.org/schema/tx/spring-tx.xsd"
  default-autowire="byName">

  <aop:config>
     <aop:pointcut id="serviceAnnotatedClass" expression="@within(org.springframework.stereotype.Service)" />
     <aop:advisor id="managerTx" advice-ref="txAdvice" pointcut-ref="serviceAnnotatedClass" order="20" />
  </aop:config>

  <tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
      <tx:method name="get*" read-only="true" />
      <tx:method name="find*" read-only="true" />
      <tx:method name="load*" read-only="true" />
      <tx:method name="is*" read-only="true" />
      <tx:method name="ownTransaction*" propagation="REQUIRES_NEW" rollback-for="Exception" />
      <tx:method name="*" rollback-for="Exception" />
    </tx:attributes>
  </tx:advice>

</beans>

到目前为止，我想出了如何用

替换 aop:pointcut

<aop:advisor id="managerTx" advice-ref="txAdvice" 
pointcut="com.myapp.configuration.AspectConfig.serviceAnnotatedClass()" order="20"/>

和

import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class AspectConfig
{

  @Pointcut("@within(org.springframework.stereotype.Service)")
  public void serviceAnnotatedClass() {}
}

任何提示如何替换其余部分？

Answer 1

如果你根本不想使用任何xml，那么你可以为方面创建一个单独的Java配置类

@Configuration
@EnableAspectJAutoProxy
@ComponentScan(basePackages = "com.myAspects")
public class AspectConfig {
    //Here you can define Aspect beans or just use @ComponentScan (as above)
    //to scan the @Aspect annotation in com.myAspects package
}

并在您的主 AppConfig 类中导入上述配置类

@Configuration
@EnableWebMvc
@Import({ AspectConfig.class })
@ComponentScan(basePackages = { "pkg1", "pkg2", "pkg3" })
public class AppConfiguration extends WebMvcConfigurationSupport {
    //Other configuration beans or methods
}

现在创建你的方面 bean

import com.myAspects;
@Component
@Aspect
public class LoggingAspect {

    @Before("execution(* com.service.*.*(..))")
    public void logBefore(){
        System.out.println("before advice called");
    } 

    @After("execution(* com.service.*.*(..))")
    public void logAfter(){
        System.out.println("after advice called");
    } 

}

您可以使用切入点和如上所示的通知注释。