Spring - AOP之传统手动代理

packagecom.imooc.aop.demo3;
publicinterfaceStudentDao {
publicvoidfind();
publicvoidsave();
publicvoidupdate();
publicvoiddelete();
}

packagecom.imooc.aop.demo3;
publicclassStudentDaoImplimplementsStudentDao {
publicvoidfind() {
System.out.println("学生查询...");
    }
publicvoidsave() {
System.out.println("学生保存...");
    }
publicvoidupdate() {
System.out.println("学生修改...");
    }
publicvoiddelete() {
System.out.println("学生删除...");
    }
}

packagecom.imooc.aop.demo3;
importorg.springframework.aop.MethodBeforeAdvice;
importjava.lang.reflect.Method;
publicclassMyBeforeAdviceimplementsMethodBeforeAdvice {
publicvoidbefore(Methodmethod, Object[] args, Objecttarget) throwsThrowable {
System.out.println("前置增强======================");
    }
}

<?xmlversion="1.0"encoding="UTF-8"?><beansxmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"><!--配置目标类--><beanid="studentDao"class="com.imooc.aop.demo3.StudentDaoImpl"/><!--前置通知类型--><beanid="myBeforeAdvice"class="com.imooc.aop.demo3.MyBeforeAdvice"/><!--Spring的AOP产生代理对象--><beanid="studentDaoProxy"class="org.springframework.aop.framework.ProxyFactoryBean"><!--配置目标类--><propertyname="target"ref="studentDao"/><!--实现的接口--><propertyname="proxyInterfaces"value="com.imooc.aop.demo3.StudentDao"/><!--采用拦截的名称--><propertyname="interceptorNames"value="myBeforeAdvice"/><propertyname="optimize"value="true"></property></bean></beans>

packagecom.imooc.aop.demo3;
importorg.junit.Test;
importorg.junit.runner.RunWith;
importorg.springframework.test.context.ContextConfiguration;
importorg.springframework.test.context.junit4.SpringJUnit4ClassRunner;
importjavax.annotation.Resource;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
publicclassSpringDemo3 {
// @Resource(name="studentDao")@Resource(name="studentDaoProxy")
privateStudentDaostudentDao;
@Testpublicvoiddemo1(){
studentDao.find();
studentDao.save();
studentDao.update();
studentDao.delete();
    }
}

运行结果：前置增强======================学生查询...
前置增强======================学生保存...
前置增强======================学生修改...
前置增强======================学生删除...

packagecom.imooc.aop.demo4;
publicclassCustomerDao {
publicvoidfind(){
System.out.println("查询客户...");
    }
publicvoidsave(){
System.out.println("保存客户...");
    }
publicvoidupdate(){
System.out.println("修改客户...");
    }
publicvoiddelete(){
System.out.println("删除客户...");
    }
}

<?xmlversion="1.0"encoding="UTF-8"?><beansxmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"><!--配置目标类============--><beanid="customerDao"class="com.imooc.aop.demo4.CustomerDao"/><!--配置通知==============--><beanid="myAroundAdvice"class="com.imooc.aop.demo4.MyAroundAdvice"/><!--一般的切面是使用通知作为切面的，因为要对目标类的某个方法进行增强就需要配置一个带有切入点的切面--><beanid="myAdvisor"class="org.springframework.aop.support.RegexpMethodPointcutAdvisor"><!--pattern中配置正则表达式：.任意字符*任意次数--><!--<propertyname="pattern"value=".*save.*"/>--><propertyname="patterns"value=".*save.*,.*delete.*"/><propertyname="advice"ref="myAroundAdvice"/></bean><!--配置产生代理--><beanid="customerDaoProxy"class="org.springframework.aop.framework.ProxyFactoryBean"><propertyname="target"ref="customerDao"/><propertyname="proxyTargetClass"value="true"/><propertyname="interceptorNames"value="myAdvisor"/></bean></beans>

packagecom.imooc.aop.demo4;
importorg.aopalliance.intercept.MethodInterceptor;
importorg.aopalliance.intercept.MethodInvocation;
publicclassMyAroundAdviceimplementsMethodInterceptor {
publicObjectinvoke(MethodInvocationinvocation) throwsThrowable {
System.out.println("环绕前增强===================");
Objectobj=invocation.proceed();
System.out.println("环绕后增强===================");
returnobj;
    }
}

运行结果：查询客户...
环绕前增强===================保存客户...
环绕后增强===================修改客户...
环绕前增强===================删除客户...
环绕后增强===================