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...