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Java AOP 注解配置与xml配置
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<?
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:jdbc
="http://www.springframework.org/schema/jdbc"
xmlns:context
="http://www.springframework.org/schema/context"
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/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd"
>
<!--
配置自动扫描
-->
<
context:component-scan
base-package
="cn.zr.aoptest"
/>
<!--
注解方式 配置aop自动代理
-->
<
aop:aspectj-autoproxy
/>
<!--
xml方式 配置aop
-->
<
bean
id
="personDaoImpl"
class
="cn.zr.aoptest.dao.person.impl.PersonDaoImpl"
></
bean
>
<
bean
id
="personManager"
class
="cn.zr.aop.utils.PersonManager"
></
bean
>
<
aop:config
>
<
aop:pointcut
expression
="execution(* cn.zr.aoptest.dao.person.impl.*.*(..))"
id
="pointcut"
/>
<
aop:aspect
id
="xmlaop"
ref
="personManager"
>
<
aop:before
method
="beforeInfo"
pointcut-ref
="pointcut"
/>
<
aop:after-returning
method
="afterReturnInfo"
pointcut-ref
="pointcut"
/>
<
aop:after
method
="afterInfo"
pointcut-ref
="pointcut"
/>
<
aop:after-throwing
method
="exceptionInfo"
throwing
="throwable"
pointcut-ref
="pointcut"
/>
<
aop:around
method
="aroundInfo"
pointcut-ref
="pointcut"
/>
</
aop:aspect
>
</
aop:config
>
</
beans
>
package
cn.zr.aop.utils;
import
org.aspectj.lang.JoinPoint;
import
org.aspectj.lang.ProceedingJoinPoint;
public
class
PersonManager {
public
void
beforeInfo(JoinPoint joinPoint){
System.out.println("获取信息...前");
//获取参数
Object[] objects = joinPoint.getArgs();
for (Object object : objects) {
System.out.println(object);
}
}
publicvoid afterReturnInfo(){
System.out.println("获取信息...后");
}
publicvoid afterInfo(){
System.out.println("获取信息...最终");
}
publicvoid exceptionInfo(Throwable throwable){
System.out.println("出现异常:"+throwable);
}
public Object aroundInfo(ProceedingJoinPoint pjp){
Object obj = null;
System.out.println("=== 环绕前 ===");
try {
obj = pjp.proceed();
} catch (Throwable e) {
e.printStackTrace();
}
System.out.println("=== 环绕后 ===");
return obj;
}
}
package
cn.zr.aoptest.dao.person.impl;
public
class
PersonDaoImpl {
public
void
getInfo() {
int num = 10/0;
System.out.println("获取信息");
}
}
package
cn.zr.aoptest.dao.person.impl;
import
org.aspectj.lang.JoinPoint;
import
org.aspectj.lang.ProceedingJoinPoint;
import
org.aspectj.lang.annotation.After;
import
org.aspectj.lang.annotation.AfterReturning;
import
org.aspectj.lang.annotation.AfterThrowing;
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
TransactionManager {
//
设置切点
@Pointcut("execution(* cn.zr.aoptest.Userdao.impl.UserDaoImpl.*(..))")
publicvoid methodPointcut() {
}
// 前置通知
@Before(value=("execution(* cn.zr.aoptest.Userdao.impl.UserDaoImpl.*(..))"))
publicvoid beginTransactionManager(JoinPoint jp){
System.out.println("...开始事务...");
Object[] objs = jp.getArgs();
for (Object object : objs) {
System.out.println(object+"!!!");
}
}
// 后置通知
@AfterReturning("methodPointcut()")
publicvoid commitTrasactionManager(){
System.out.println("===提交事务===");
}
// 最终通知（finally）
@After("methodPointcut()")
publicvoid finallyManager(){
System.out.println("~~~无论是否异常，始终执行~~~");
}
// 异常通知
//@AfterThrowing(pointcut = "controllerAspect()", throwing="e")
@AfterThrowing(value="methodPointcut()",throwing="ep")
publicstaticvoid exceptionManager(Throwable ep){
System.out.println("<<<事务回滚>>>，exception："+ep);
}
// 环绕通知
@Around("methodPointcut()")
public Object aroundTrasactionManager(ProceedingJoinPoint joinPoint) {
Object obj = null;
System.out.println("---=围绕通知前=---");
try {
obj = joinPoint.proceed();
} catch (Throwable e) {
e.printStackTrace();
}
System.out.println("***=围绕通知后=***");
return obj;
}
}
package
cn.zr.aoptest.Userdao.impl;
import
org.springframework.stereotype.Repository;
@Repository
public
class
UserDaoImpl {
/**
* 添加用户操作
*/
public
void
addUser(String name){
System.out.println("我要进行添加用户操作"+name);
int count = 0;
int num = 100/count;
}
}
package
cn.zr.aoptest.test;
import
org.springframework.context.ApplicationContext;
import
org.springframework.context.support.ClassPathXmlApplicationContext;
import
cn.zr.aoptest.Userdao.impl.UserDaoImpl;
import
cn.zr.aoptest.dao.person.impl.PersonDaoImpl;
public
class
BeanTest {
public
static
void
main(String[] args) {
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
UserDaoImpl impl = (UserDaoImpl) ac.getBean(UserDaoImpl.class);
impl.addUser("lf");
PersonDaoImpl personDaoImpl = (PersonDaoImpl) ac.getBean("personDaoImpl");
personDaoImpl.getInfo();
}
}
原文：http://www.cnblogs.com/lantu1989/p/6411467.html
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