MyBatis--DAO（一）

最新推荐文章于 2025-11-30 18:24:05 发布

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一、springside中mybatis的例子已经很详细了（Spring-mybatis）

http://www.tuicool.com/articles/QBVVFr

<!-- mybatis config -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 自动扫描dto目录, 省掉Configuration.xml里的手工配置 -->
        <property name="typeAliasesPackage" value="k.dto" />
        <!-- 显式指定Mapper文件位置 -->
        <property name="mapperLocations" value="classpath:/k/dao/**/*Mapper.xml" />
    </bean>
    <!-- 扫描basePackage下所有以@MyBatisRepository标识的 接口-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="k.dao" />
        <property name="annotationClass" value="k.dao.base.MyBatisRepository"/>
    </bean>

/**
 * 标识MyBatis的DAO,方便{@link org.mybatis.spring.mapper.MapperScannerConfigurer}的扫描
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface MyBatisRepository {}

@Component
@MyBatisRepository
public interface MybatisDemoMapper {
 
    List<MybatisDemoDTO> find(Map<String,Object> param);
     
    MybatisDemoDTO findById(int id);
     
    int insert(MybatisDemoDTO dto);
     
    void update(MybatisDemoDTO dto);
     
    @Delete("delete from test where id = #{id}")
    void delete(int id);
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="k.dao.demo.MybatisDemoMapper">
    <cache />
    <sql id="testTableCols"> id,col </sql>
    <insert id="insert" parameterType="MybatisDemoDTO" useGeneratedKeys="true" keyProperty="id">
        insert into test (<include refid="testTableCols"/>) values(
            0,#{col}
        )
    </insert>
     
    <update id="update" parameterType="MybatisDemoDTO">
        update test set col = #{col} where id = #{id}
    </update>
     
    <!-- 已在接口中使用注解定义了
    <delete id="delete" parameterType="int">
        delete from test where id = #{id}
    </delete>
     -->
    <select id="findById" parameterType="int" resultType="MybatisDemoDTO">
        select <include refid="testTableCols"/> from test where id = #{id}
    </select>
     
    <select id="find" parameterType="map" resultType="MybatisDemoDTO">
        select <include refid="testTableCols"/> from test
        <where>
            <if test="col != null">
                col like #{col}
            </if>
        </where>
    </select>
</mapper>

二、Mybatis 使用Dao代码方式进行增、删、改、查

http://www.cnblogs.com/maocs/p/5047860.html

三、DAO继承了SqlSessionDaoSupport(mybatis-spring包)的方式

http://blog.youkuaiyun.com/sskicgah/article/details/12575939

四、Mybatis数据访问层DAO层BaseDao实现类模板

http://blog.sina.com.cn/s/blog_d00b69580102w9f3.html

五、Mybatis 泛型DAO接口的设计

http://www.360doc.com/content/12/0429/04/1542811_207413269.shtml

http://wenku.baidu.com/link?url=FEM6CZFkB_76efmGstdlvKRfck0D4p_4IzXyDqYTOEtCHt3HOgiQE0EjolQdWCWR8boVeuoTmuf2wqWxnoueDbUqut88oW62kdHZkHeANC3