主要是将上面的xml文件的内容替换掉，以下是xml文件所有内容，环绕通知的内容就是替换四种通知即可
我要评论<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 http://www.springframework.org/schema/aop/spring-aop.xsd">
<bean id="wordsservice" class="com.mypro.service.impl.wordsserviceimpl"></bean>
<bean id="logger" class="com.mypro.service.impl.wordsserviceimpl"></bean>
<aop:config>
<aop:aspect id="loggeradvice" ref="logger">
<aop:pointcut id="pt1" expression="execution(* com.mypro.service.impl.*.*(..))"></aop:point>
<aop:before method="beforeinfo" pointcut-ref="pt1"></aop:before>
<aop:after-returning method="afterreturninginfo" pointcut-ref="pt1"></aop:after-returning>
<aop:after-throwing method="afterthrowinginfo" pointcut-ref="pt1"></aop:after-throwing>
<aop:after method="afterinfo" pointcut-ref="pt1"></aop:after>
</aop:aspect>
</aop:config>
</beans>
首先我们需要配置我们扫描的包，将xml文件的bean对象替换成注解，即在我们实现类上方添加注解。在此之前，还需要添加xmlns:context依赖
<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 http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 代替xml文件的两个bean对象的配置 -->
<context:component-scan base-package="com.mypro"></context:component-scan>
</beans>
开启spring支持的aop配置
<aop:aspectj-autoproxy></aop:aspectj-autoproxy>
修改通知类的代码，注意实现五种通知标签的功能
package com.mypro.utils;
import org.aspectj.lang.proceedingjoinpoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.component;
/**
* 用于记录日志的工具类，里面提供公共的代码
*/
// 代替xml文件的<aop:config><aop:aspect id="loggeradvice" ref="logger"></aop:aspect></aop:config>
@component("logger")
@aspect
public class logger {
// 代替切入点的配置
@pointcut("execution(* com.mypro.service.impl.*.*(..))")
public void pt1(){}
@before("pt1()")
public void beforeinfo(){
system.out.println("前置通知");
}
@afterreturning("pt1()")
public void totalinfo(){
system.out.println("后置通知");
}
@afterthrowing("pt1()")
public void expectinfo(){
system.out.println("异常通知");
}
@after("pt1()")
public void afterinfo(){
system.out.println("最终通知");
}
@around("pt1()")
public object aroundinfo(){
object rtvalue = null;
try{
system.out.println("前置通知");
// 得到方法执行时所需的参数
object[] args = pjp.getargs();
// 明确调用业务层方法（切入点方法）
rtvalue = pjp.proceed(args);
system.out.println("后置通知");
return rtvalue;
}catch(throwable t){ // 必须是用throwable捕捉异常
system.out.println("异常通知");
throw new runtimeexception(t);
}finally{
system.out.println("最终通知");
}
}
}
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