List 的map配置

类
public class TrainingTask extends AbsBusinessObject {
    private Topic topic=null;//实训主题
    private Date startDate=null;//实训开始时间
    private Date endDate=null;//实训结束时间
    private int practiceCount=0;//实训实践课时数
    private int theoryCount=0;//实训理论课时数
    private List<Teacher> teachers=null;//实训导师
    private List<StudentClass> classes=null;//实训班级
    private List<Student> students=null;//实训学生


xml配置
<?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="dao.training.inter.ITrainingTask">
    <resultMap id="BaseResultMap" type="entity.training.TrainingTask">
        <id column="id" property="id"/>
        <result column="id" property="oldId"/>
        <result column="name" property="name"/>
        <result column="createDate" property="createDate"/>
        <result column="status" property="status"/>
        <result column="description" property="description"/>

        <result column="startDate" property="startDate"/>
        <result column="endDate" property="endDate"/>
        <result column="practiceCount" property="practiceCount"/>
        <result column="theoryCount" property="theoryCount"/>

        <association property="user" javaType="kesun.entity.system.User">
            <id column="user" property="id"></id>
        </association>

        <association property="topic" javaType="entity.training.Topic">
            <id column="topic" property="id"></id>
            <result property="name" column="topicName"/>
        </association>
        <association property="actor" javaType="kesun.entity.system.Actor">
            <id column="actor" property="id"></id>
        </association>

        <association property="org" javaType="kesun.entity.system.Organization">
            <id column="org" property="id"></id>
        </association>

    </resultMap>
    <resultMap id="ResultMap" extends="BaseResultMap" type="entity.training.TrainingTask">

        <collection property="teachers" javaType="java.util.List" ofType="entity.educationbaseinfo.Teacher"
                    select="selectTeacher"
                    column="id">
            <result property="id" column="id"/>
            <result property="number" column="number"/>
            <result property="name" column="name"/>
        </collection>

        <collection property="students" javaType="java.util.List" ofType="entity.educationbaseinfo.Student"
                    select="selectStudents"
                    column="id">
            <result property="id" column="id"/>
            <result property="number" column="number"/>
            <result property="name" column="name"/>
        </collection>

        <collection property="classes" javaType="java.util.List" ofType="entity.educationbaseinfo.StudentClass"
                    select="selectStudentClass"
                    column="id">
            <result property="id" column="id"/>
            <result property="name" column="name"/>
        </collection>
    </resultMap>

    <sql id="Base_Column_List">
        id,name,createDate,status,description,startDate,endDate,practiceCount,theoryCount,user,org,actor,topic,topicName
    </sql>

    <sql id="colums">
    <trim suffix="" suffixOverrides=",">
        <if test="id != null">
            id,
        </if>
        <if test="name != null">
            name,
        </if>
        <if test="createDate != null">
            createDate,
        </if>
        <if test="description != null">
            description,
        </if>
        <if test="startDate != null">
            startDate,
        </if>
        <if test="endDate != null">
            endDate,
        </if>
        <if test="practiceCount != null">
            practiceCount,
        </if>
        <if test="theoryCount != null">
            theoryCount,
        </if>
        <if test="status != null">
            status,
        </if>
        <if test="topic != null">
            topic,
        </if>
        <if test="user != null">
            user,
        </if>

        <if test="actor != null">
            actor,
        </if>

        <if test="org != null">
            org,
        </if>
    </trim>
</sql>

    <sql id="columsValue">
        <trim suffix="" suffixOverrides=",">
            <if test="id != null">
                #{id},
            </if>
            <if test="name != null">
                #{name},
            </if>
            <if test="createDate != null">
                #{createDate},
            </if>
            <if test="description != null">
                #{description},
            </if>
            <if test="startDate != null">
                #{startDate},
            </if>
            <if test="endDate != null">
                #{endDate},
            </if>
            <if test="practiceCount != null">
                #{practiceCount},
            </if>
            <if test="theoryCount != null">
                #{theoryCount},
            </if>
            <if test="status != null">
                #{status},
            </if>
            <if test="topic != null">
                #{topic.id},
            </if>
            <if test="user != null">
                #{user.id},
            </if>

            <if test="actor != null">
                #{actor.id},
            </if>
            <if test="org != null">
                #{org.id},
            </if>
        </trim>
    </sql>
    <sql id="columsItemsValue">
        <trim suffix="" suffixOverrides=",">
            <if test="item.id != null">
                #{item.id},
            </if>
            <if test="item.name != null">
                #{item.name},
            </if>
            <if test="item.createDate != null">
                #{item.createDate},
            </if>
            <if test="item.description != null">
                #{item.description},
            </if>
            <if test="item.startDate != null">
                #{item.startDate},
            </if>
            <if test="item.endDate != null">
                #{item.endDate},
            </if>
            <if test="item.practiceCount != null">
                #{item.practiceCount},
            </if>
            <if test="item.theoryCount != null">
                #{item.theoryCount},
            </if>
            <if test="item.status != null">
                #{item.status},
            </if>
            <if test="item.topic != null">
                #{item.topic.id},
            </if>
            <if test="item.user != null">
                #{item.user.id},
            </if>
            <if test="item.actor != null">
                #{item.actor.id},
            </if>
            <if test="item.org != null">
                #{item.org.id},
            </if>
        </trim>
    </sql>
    <sql id="condition">
        <where>
            <trim suffixOverrides="and">
                <if test="name!=null">
                    name like '%${name}%' and
                </if>
                <if test="org!=null">
                    org='${org}' and
                </if>
            </trim>
        </where>
    </sql>



    <resultMap id="teacher" type="entity.educationbaseinfo.Teacher">
        <id column="teacher" property="id"/>
        <result column="number" property="number"/>
        <result column="teaName" property="name"/>
    </resultMap>
    <resultMap id="classes" type="entity.educationbaseinfo.StudentClass">
        <id column="class" property="id"/>
        <result column="className" property="name"/>
    </resultMap>
    <resultMap id="students" type="entity.educationbaseinfo.Student">
        <id column="id" property="id"/>
        <result column="name" property="name"/>
        <result column="number" property="number"/>
    </resultMap>
    <!--查询相关的老师信息-->
    <select id="selectTeacher" parameterType="entity.training.TrainingTask" resultMap="teacher">
        select teacher,number,teaName from trainms_vw_trainingtask_teachers where parent=#{id}
    </select>
    <!--查询相关的学生信息-->
    <select id="selectStudents" parameterType="entity.training.TrainingTask"  resultMap="students">
        select id , name,number,sex from trainms_vw_trainingtask_students where parent=#{id}
    </select>

    <!--查询相关的班级信息-->
    <select id="selectStudentClass" parameterType="entity.training.TrainingTask"  resultMap="classes">
        select class,className from trainms_vw_trainingtask_classes where parent=#{id}
    </select>

    <!--单个对象新增-->
    <insert id="save" parameterType="entity.training.TrainingTask">
        insert into trainms_trainingtask (
        <include refid="colums"/>
        ) values (
        <include refid="columsValue"/>);
        <if test="teachers!=null">
            <foreach collection="teachers" item="item" index="index">
                insert into trainms_trainingtask_teachers (
                id,teacher,parent
                ) values
                (
               '${item.id}','${item.id}','${id}'
                );
            </foreach>
        </if>
        <if test="students!=null">
            <foreach collection="students" item="item" index="index">
                insert into trainms_trainingtask_students (
                id,student,parent
                ) values
                (
                '${item.id}','${item.id}','${id}'
                );
            </foreach>
        </if>
        <if test="classes!=null">
            <foreach collection="classes" item="item" index="index">
                insert into trainms_trainingtask_classes (
                id,class,parent
                ) values
                (
                '${item.id}','${item.id}','${id}'
                );
            </foreach>
        </if>
    </insert>
    <!--批量新增-->
    <insert id="batchSave" parameterType="java.util.List">
        <foreach collection="list" item="item" index="index">
            insert into trainms_trainingtask (
            <include refid="colums"></include>
            ) values
            (
             <include refid="columsItemsValue"></include>
            );
        </foreach>
    </insert>
    <!--单个对象更新-->
    <update id="update" parameterType="entity.training.TrainingTask">
        update trainms_trainingtask set
        <trim suffix="" suffixOverrides=",">
            <if test="name != null">
                name=#{name},
            </if>
            <if test="createDate != null">
                createDate=#{createDate},
            </if>
            <if test="description != null">
                description=#{description},
            </if>
       
            <if test="startDate!=null">
                startDate=#{startDate},
            </if>
            <if test="endDate!=null">
                endDate=#{endDate},
            </if>
            <if test="practiceCount!=null">
                practiceCount=#{practiceCount},
            </if>
            <if test="theoryCount!=null">
                theoryCount=#{theoryCount},
            </if>
            <if test="status != null">
                status=#{status},
            </if>
            <if test="user != null">
                user=#{user.id},
            </if>
            <if test="actor != null">
                actor=#{actor.id},
            </if>
            <if test="org != null">
                org=#{org.id},
            </if>
        </trim>
        where id=#{oldId,jdbcType=VARCHAR}
    </update>
    <!--对象批量更新-->
    <update id="batchUpdate" parameterType="java.util.List">
        <foreach collection="list" item="item" index="index" open="" close="" separator=";">
            update trainms_trainingtask set
            <trim suffix="" suffixOverrides=",">
                <if test="item.name != null">
                    name=#{item.name},
                </if>
                <if test="item.createDate != null">
                    createDate=#{item.createDate},
                </if>
                <if test="item.description != null">
                    description=#{item.description},
                </if>
              
                <if test="item.startDate!=null">
                    startDate=#{item.startDate},
                </if>
                <if test="item.endDate!=null">
                    endDate=#{item.endDate},
                </if>
                <if test="item.practiceCount!=null">
                    practiceCount=#{item.practiceCount},
                </if>
                <if test="item.theoryCount!=null">
                    theoryCount=#{item.theoryCount},
                </if>
                <if test="item.status != null">
                    status=#{item.status},
                </if>
                <if test="item.user != null">
                    user=#{item.user.id},
                </if>
                <if test="item.actor != null">
                    actor=#{item.actor.id},
                </if>
                <if test="item.org != null">
                    org=#{item.org.id},
                </if>
            </trim>
            where id=#{item.oldId,jdbcType=VARCHAR}
        </foreach>
    </update>
    <!--状态更新-->
    <update id="changeStatus" parameterType="entity.training.TrainingTask">
        update trainms_trainingtask set status=#{status} where id=#{id}
    </update>
    <!--单个对象删除-->
    <delete id="delete" parameterType="java.lang.String">
        delete from trainms_trainingtask where id = #{id,jdbcType=VARCHAR}
    </delete>
    <!--批量删除-->
    <delete id="batchDelete" parameterType="java.util.List">
        delete from trainms_trainingtask
        <where>
            id in
            <foreach collection="list" item="item" separator="," open="(" close=")">#{item,jdbcType=VARCHAR}</foreach>
        </where>
    </delete>

    <!--单个对象查找-->
    <select id="getMe" parameterType="entity.training.Topic" resultMap="ResultMap">
        select * from trainms_vw_trainingtask where id=#{id}
    </select>
    <!--查找，以Map返回-->
    <select id="findForMap" parameterType="java.util.Map" resultType="java.util.Map">
        select
        <include refid="Base_Column_List"/>
        from trainms_vw_trainingtask
        <include refid="condition"></include>
        order by name ASC
    </select>

    <!--快速查找，以Map返回-->
    <select id="fastFind" parameterType="java.util.Map" resultType="java.util.Map">
        select id,name
        from trainms_vw_trainingtask
        <include refid="condition"></include>
        order by name ASC
    </select>
    <!--查询，以对象集合返回-->
    <select id="find" parameterType="java.util.Map" resultMap="BaseResultMap">
        select
        <include refid="Base_Column_List"/>
        from trainms_vw_trainingtask
         <include refid="condition"></include>
        order by name ASC
    </select>
    <!--返回查找条数-->
    <select id="getRowsCount" parameterType="java.util.Map" resultType="java.lang.Integer">
        select count(1) as total from trainms_vw_trainingtask
         <include refid="condition"></include>
    </select>
    <!--分页查找-->
    <select id="findByPage" parameterType="java.util.Map" resultType="java.util.Map">
        select
        <include refid="Base_Column_List"/>
        from trainms_vw_trainingtask
        <where>
            <if test="parent !=null">
                where name=#{parent}
            </if>
        </where>
        order by name ASC
        <if test="start >=0 and limit>=0">
            limit #{start},#{limit}
        </if>
    </select>
    <!--判断数据是否在使用中,指令根据实际情况编写-->
    <select id="objectInUse" parameterType="java.lang.String" resultType="java.lang.Boolean">
        <![CDATA[ select case when count(id)>0 then 1 else 0  end as count from trainms_trainingtask where name=#{id}
         ]]>
    </select>

</mapper>