15_AOP入门准备_静态代理模式

【工程截图】



【PersonDao.java】

package com.HigginCui.daoProxy;

public interface PersonDao {
public void savePerson();
}

【PersonDaoImpl.java】

package com.HigginCui.daoProxy;

public class PersonDaoImpl implements PersonDao{
@Override
public void savePerson() {
System.out.println("save Person...");
}

}

【Transaction.java】

package com.HigginCui.daoProxy;

public class Transaction {
public void beginTransaction(){
System.out.println("begin transaction...");
}
public void commit(){
System.out.println("begin commit...");
}
}

【PersonDaoProxy.java】

package com.HigginCui.daoProxy;

public class PersonDaoProxy implements PersonDao{
private PersonDao personDao;
private Transaction transaction;

public PersonDaoProxy(PersonDao personDao,Transaction transaction){
this.personDao=personDao;
this.transaction=transaction;
}
@Override
public void savePerson() {
//1.开启事务
this.transaction.beginTransaction();
//2.进行save操作
this.personDao.savePerson();
//3.事务提交
this.transaction.commit();
}
}

【testPerson.java】

package com.HigginCui.test;

import org.junit.Test;

import com.HigginCui.daoProxy.PersonDao;
import com.HigginCui.daoProxy.PersonDaoImpl;
import com.HigginCui.daoProxy.PersonDaoProxy;
import com.HigginCui.daoProxy.Transaction;

public class testPerson {
@Test
public void test(){
PersonDao personDao=new PersonDaoImpl();
Transaction transaction=new Transaction();
PersonDaoProxy personDaoProxy=new PersonDaoProxy(personDao,transaction);
personDaoProxy.savePerson();
}
}

【运行结果】

begin transaction...
save Person...
begin commit...