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一、AOP之传统自动代理——基于Bean名称的自动代理

package com.imooc.aop.demo5;public class CustomerDao {    public void find(){        System.out.println("查询客户...");    }    public void save(){        System.out.println("保存客户...");    }    public void update(){        System.out.println("修改客户...");    }    public void delete(){        System.out.println("删除客户...");    }}

package com.imooc.aop.demo5;public interface StudentDao {    public void find();    public void save();    public void update();    public void delete();}

package com.imooc.aop.demo5;public class StudentDaoImpl implements StudentDao {    public void find() {        System.out.println("学生查询...");    }    public void save() {        System.out.println("学生保存...");    }    public void update() {        System.out.println("学生修改...");    }    public void delete() {        System.out.println("学生删除...");    }}

package com.imooc.aop.demo5;import org.aopalliance.intercept.MethodInterceptor;import org.aopalliance.intercept.MethodInvocation;public class MyAroundAdvice implements MethodInterceptor {    public Object invoke(MethodInvocation invocation) throws Throwable {        System.out.println("环绕前增强===================");        Object obj = invocation.proceed();        System.out.println("环绕后增强===================");        return obj;    }}

package com.imooc.aop.demo5;import org.springframework.aop.MethodBeforeAdvice;import java.lang.reflect.Method;public class MyBeforeAdvice implements MethodBeforeAdvice {    public void before(Method method, Object[] args, Object target) throws Throwable {        System.out.println("前置增强======================");    }}

package com.imooc.aop.demo5;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import javax.annotation.Resource;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("classpath:applicationContext3.xml")public class SpringDemo5 {    @Resource(name="studentDao")    private StudentDao studentDao;    @Resource(name="customerDao")    private CustomerDao customerDao;    @Test    public void demo1(){        studentDao.find();        studentDao.save();        studentDao.update();        studentDao.delete();        customerDao.find();        customerDao.save();        customerDao.update();        customerDao.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...前置增强======================查询客户...前置增强======================保存客户...前置增强======================修改客户...前置增强======================删除客户...

二、AOP之传统自动代理——基于切面信息的自动代理

Ps：其余代码同上……

package com.imooc.aop.demo6;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import javax.annotation.Resource;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("classpath:applicationContext4.xml")public class SpringDemo6 {    @Resource(name="studentDao")    private StudentDao studentDao;    @Resource(name="customerDao")    private CustomerDao customerDao;    @Test    public void demo1(){        studentDao.find();        studentDao.save();        studentDao.update();        studentDao.delete();        customerDao.find();        customerDao.save();        customerDao.update();        customerDao.delete();    }}

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

两者区别：

• 基于切面信息 较 基于Bean名称，更加细粒度化，可以精确到方法。

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