MyBatis系列目录--3. Mybatis注解

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1. PlayerDao注解方式实现

Java代码  

1. package com.sohu.tv.mapper;  
2. import java.util.List;  
3. import org.apache.ibatis.annotations.Delete;  
4. import org.apache.ibatis.annotations.Select;  
5. import org.apache.ibatis.annotations.Update;  
6. import org.apache.ibatis.annotations.Insert;  
7. import com.sohu.tv.bean.Player;  
8. /** 
9.  * 注解方式实现PlayerDao 
10.  * @author leifu 
11.  * @Date 2015年7月28日 
12.  * @Time 上午10:16:39 
13.  */  
14. public interface PlayerAnnotationDao {  
15.     @Insert("insert into players(name, age) values(#{name}, #{age})")  
16.     public int savePlayer(Player player);  
17.     
18.     @Delete("delete from players where id=#{id}")  
19.     public int deletePlayer(int id);  
20.        
21.     @Update("update players set name=#{name},age=#{age} where id=#{id}")  
22.     public int updatePlayer(Player player);  
23.        
24.     @Select("select id,name,age from players where id=#{id}")  
25.     public Player getPlayerById(int id);  
26.        
27.     @Select("select id,name,age from players")  
28.     public List<Player> selectAllPlayers();  
29. }  

package com.sohu.tv.mapper;
import java.util.List;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import org.apache.ibatis.annotations.Insert;
import com.sohu.tv.bean.Player;
/**
 * 注解方式实现PlayerDao
 * @author leifu
 * @Date 2015年7月28日
 * @Time 上午10:16:39
 */
public interface PlayerAnnotationDao {
    @Insert("insert into players(name, age) values(#{name}, #{age})")
    public int savePlayer(Player player);
  
    @Delete("delete from players where id=#{id}")
    public int deletePlayer(int id);
     
    @Update("update players set name=#{name},age=#{age} where id=#{id}")
    public int updatePlayer(Player player);
     
    @Select("select id,name,age from players where id=#{id}")
    public Player getPlayerById(int id);
     
    @Select("select id,name,age from players")
    public List<Player> selectAllPlayers();
}

2. mybatis-base.xml添加注解相关配置

Xml代码  

1. <mappers>  
2.     <mapper class="com.sohu.tv.mapper.PlayerAnnotationDao"/>  
3. </mappers>  

<mappers>
    <mapper class="com.sohu.tv.mapper.PlayerAnnotationDao"/>
</mappers>

【java框架源码下载】

3. 单元测试：

Java代码  

1. package com.sohu.tv.test.mapper;  
2. import java.util.List;  
3. import org.apache.ibatis.session.SqlSession;  
4. import org.junit.After;  
5. import org.junit.Before;  
6. import org.junit.Test;  
7. import com.sohu.tv.bean.Player;  
8. import com.sohu.tv.mapper.PlayerAnnotationDao;  
9. /** 
10.  * mybatis-annotation实现方式配置 
11.  *  
12.  * @author leifu 
13.  * @Date 2015年7月28日 
14.  * @Time 上午9:54:07 
15.  */  
16. public class PlayerMapperAnnotationTest extends BaseTest {  
17.     private SqlSession sqlSession;  
18.     @Before  
19.     public void before() {  
20.         sqlSession = sessionFactory.openSession(true);  
21.     }  
22.     @After  
23.     public void after() {  
24.         sqlSession.close();  
25.     }  
26.     @Test  
27.     public void testGetPlayer() {  
28.         PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);  
29.         Player player = playerAnnotationDao.getPlayerById(1);  
30.         System.out.println(player);  
31.     }  
32.     @Test  
33.     public void testInsertPlayer() {  
34.         PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);  
35.         playerAnnotationDao.savePlayer(new Player(-1, "carlos", 34));  
36.     }  
37.     @Test  
38.     public void testDeletePlayer() {  
39.         PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);  
40.         playerAnnotationDao.deletePlayer(4);  
41.     }  
42.     @Test  
43.     public void testUpdatePlayer() {  
44.         PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);  
45.         playerAnnotationDao.updatePlayer(new Player(3, "ronaldo", 39));  
46.     }  
47.     @Test  
48.     public void testSelectAllPlayers() {  
49.         PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);  
50.         List<Player> playerList = playerAnnotationDao.selectAllPlayers();  
51.         if (playerList != null && !playerList.isEmpty()) {  
52.             System.out.println("playerList size: " + playerList.size());  
53.             for (Player player : playerList) {  
54.                 System.out.println(player);  
55.             }  
56.         }  
57.     }  
58. }  

package com.sohu.tv.test.mapper;
import java.util.List;
import org.apache.ibatis.session.SqlSession;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.sohu.tv.bean.Player;
import com.sohu.tv.mapper.PlayerAnnotationDao;
/**
 * mybatis-annotation实现方式配置
 * 
 * @author leifu
 * @Date 2015年7月28日
 * @Time 上午9:54:07
 */
public class PlayerMapperAnnotationTest extends BaseTest {
    private SqlSession sqlSession;
    @Before
    public void before() {
        sqlSession = sessionFactory.openSession(true);
    }
    @After
    public void after() {
        sqlSession.close();
    }
    @Test
    public void testGetPlayer() {
        PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);
        Player player = playerAnnotationDao.getPlayerById(1);
        System.out.println(player);
    }
    @Test
    public void testInsertPlayer() {
        PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);
        playerAnnotationDao.savePlayer(new Player(-1, "carlos", 34));
    }
    @Test
    public void testDeletePlayer() {
        PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);
        playerAnnotationDao.deletePlayer(4);
    }
    @Test
    public void testUpdatePlayer() {
        PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);
        playerAnnotationDao.updatePlayer(new Player(3, "ronaldo", 39));
    }
    @Test
    public void testSelectAllPlayers() {
        PlayerAnnotationDao playerAnnotationDao = sqlSession.getMapper(PlayerAnnotationDao.class);
        List<Player> playerList = playerAnnotationDao.selectAllPlayers();
        if (playerList != null && !playerList.isEmpty()) {
            System.out.println("playerList size: " + playerList.size());
            for (Player player : playerList) {
                System.out.println(player);
            }
        }
    }
}

MyBatis系列目录--3. Mybatis注解

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原文地址：http://www.cnblogs.com/yuhuangdadis/p/4783733.html