mapper

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="org.simple.mapper.SysUserMapper">
    <resultMap id="userMap" type="org.simple.model.SysUser">
        <id property="id" column="id"/>
        <result property="userName" column="user_name"/>
        <result property="userPassword" column="user_password"/>
        <result property="userEmail" column="user_email"/>
        <result property="userInfo" column="user_info"/>
        <result property="headImg" column="head_img"/>
        <result property="createTime" column="create_time" jdbcType="TIMESTAMP"/>
    </resultMap>

    <select id="selectById" resultMap="userMap">
        select * from sys_user where id = #{id}
    </select>
    
    <select id="selectUserAndRoleById" resultType="org.simple.model.SysUser">
         SELECT t1.id,t1.user_name,t1.user_email,t1.user_password,t1.user_info,t1.head_img,t1.create_time,
        t3.id,t3.role_name,t3.enabled,t3.create_by,t3.create_time
        FROM sys_user t1
        LEFT  JOIN sys_user_role t2 ON t1.id=t2.user_id
        LEFT  JOIN sys_role t3 ON t2.role_id=t3.id WHERE t1.id=#{id}
    </select>

    <select id="selectAll" resultType="org.simple.model.SysUser">
        select id,user_name,user_password,user_email,user_info,head_img,create_time from  sys_user
    </select>

    <select id="selectRoleByUserId" resultType="org.simple.model.SysRole">
        SELECT t3.id,t3.role_name,t3.enabled,t3.create_by,t3.create_time,
        t1.user_name,t1.user_email,t1.user_password
        FROM sys_user t1
        LEFT  JOIN sys_user_role t2 ON t1.id=t2.user_id
        LEFT  JOIN sys_role t3 ON t2.role_id=t3.id WHERE t1.id=#{userId}
    </select>

    <select id="selectRolesByUserIdAndRoleEnabled" resultType="org.simple.model.SysRole">
        SELECT t3.id,t3.role_name,t3.enabled,t3.create_by,t3.create_time
        FROM sys_user t1
        LEFT  JOIN sys_user_role t2 ON t1.id=t2.user_id
        LEFT  JOIN sys_role t3 ON t2.role_id=t3.id WHERE t1.id=#{userId} and t3.enabled=#{enabled}
    </select>

    <select id="selectRolesByUserAndRole" resultType="org.simple.model.SysRole">
 SELECT t3.id,t3.role_name,t3.enabled,t3.create_by,t3.create_time
        FROM sys_user t1
        LEFT  JOIN sys_user_role t2 ON t1.id=t2.user_id
        LEFT  JOIN sys_role t3 ON t2.role_id=t3.id WHERE t1.id=#{user.id} and t3.enabled=#{role.enabled}
    </select>

    <insert id="insert">
        insert into sys_user(id,user_name,user_password,user_email,
        user_info,head_img,create_time)
        values(#{id},#{userName},#{userPassword},
        #{userEmail},#{userInfo},#{headImg,jdbcType=BLOB},#{createTime,jdbcType=TIMESTAMP})<!--jdbcType:DATE  jdbcType:TIME-->
    </insert>

    <insert id="insert2" useGeneratedKeys="true" keyProperty="id">
        insert into sys_user(id,user_name,user_password,user_email,
        user_info,head_img,create_time)
        values(#{id},#{userName},#{userPassword},
        #{userEmail},#{userInfo},#{headImg,jdbcType=BLOB},#{createTime,jdbcType=TIMESTAMP})<!--jdbcType:DATE  jdbcType:TIME-->
    </insert>

    <insert id="insert3">
        insert into sys_user(id,user_name,user_password,user_email,
        user_info,head_img,create_time)
        values(#{id},#{userName},#{userPassword},
        #{userEmail},#{userInfo},#{headImg,jdbcType=BLOB},#{createTime,jdbcType=TIMESTAMP})<!--jdbcType:DATE  jdbcType:TIME-->
        <selectKey keyColumn="id" resultType="long" keyProperty="id" order="AFTER">
            SELECT LAST_INSERT_ID()
        </selectKey>
    </insert>


    <update id="updateById">
        update  sys_user
        set user_name=#{userName},user_password=#{userPassword},user_email=#{userEmail},
        user_info=#{userInfo},head_img=#{headImg,jdbcType=BLOB},create_time=#{createTime,jdbcType=TIMESTAMP}
         where id=#{id}
    </update>

    <delete id="deleteById">
            delete from sys_user where id=#{id}
    </delete>
</mapper>

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="org.simple.mapper.UserMapper">
    <resultMap id="usersMap" type="org.simple.model.SysUser">
        <id property="id" column="id"/>
        <result property="userName" column="user_name"/>
        <result property="userPassword" column="user_password"/>
        <result property="userEmail" column="user_email"/>
        <result property="userInfo" column="user_info"/>
        <result property="headImg" column="head_img" jdbcType="BLOB"/>
        <result property="createTime" column="create_time" jdbcType="TIMESTAMP"/>
    </resultMap>
    <!--MyBatis动态SQL-->
    <!--模糊查询-->
    <select id="selectByUser" resultType="org.simple.model.SysUser">
        select id,user_name,user_password,user_email,
        user_info,head_img,create_time
        from sys_user where 1=1
        <if test="userName!=null and userName!=''">
            and user_name like concat('%',#{userName},'%')
        </if>
        <if test="userEmail!=null and userEmail!=''">
            and user_email = #{userEmail}
        </if>
    </select>

    <!--where 用法-->
    <select id="selectByUsers" resultType="org.simple.model.SysUser">
        select id,
        user_name,
        user_password,
        user_email,
        user_info,
        head_img,
        create_time
        from sys_user
        <where>
            <if test="userName!=null and userName!=''">and user_name like concat('%',#{userName},'%')</if>
            <if test="userEmail!=null and userEmail!=''">and user_email =#{userEmail}</if>
        </where>

    </select>


    <!--if用法-->
    <insert id="insertUser" useGeneratedKeys="true" keyProperty="id">
        insert into sys_user(
        <if test="userName!=null and userName!=''">user_name,</if>
        <if test="userPassword!=null and userPassword!=''">user_password,</if>
        <if test="userEmail!=null and userEmail!=''">user_email,</if>
        <if test="userInfo!=null and userInfo!=''">user_info,</if>
        <if test="headImg!=null">head_img,</if>
        <if test="createTime!=null">create_time</if>
        ) values(
        <if test="userName!=null and userName!=''">#{userName},</if>
        <if test="userPassword!=null and userPassword!=''">#{userPassword},</if>
        <if test="userEmail!=null and userEmail!=''">#{userEmail},</if>
        <if test="userInfo!=null and userInfo!=''">#{userInfo},</if>
        <if test="headImg!=null">#{headImg,jdbcType=BLOB},</if>
        <if test="createTime!=null">#{createTime,jdbcType=TIMESTAMP}</if>
        )


    </insert>

    <!--choose 用法-->

    <select id="selectByIdOrUserName" resultType="org.simple.model.SysUser">
        select id,
        user_name,
        user_password,
        user_email,
        user_info,
        head_img,
        create_time
        from sys_user
        where 1=1
        <choose>
            <when test="id!=null">
                and id=#{id}
            </when>
            <when test="userName!=null and userName!=''">
                and user_name=#{userName}
            </when>
            <otherwise>
                and 1=2
            </otherwise>
        </choose>
    </select>


    <update id="updateByIdSelective">
        update sys_user set
        <if test="userName!=null and userName!=''">
            user_name=#{userName},
        </if>
        <if test="userPassword!=null and userPassword!=''">
            user_password=#{userPassword},
        </if>
        <if test="userEmail!=null and userEmail!=''">
            user_email=#{userEmail},
        </if>
        <if test="userInfo!=null and userInfo!=''">
            user_info=#{userInfo},
        </if>
        <if test="headImg!=null ">
            head_img=#{headImg,jdbcType=BLOB},
        </if>
        <if test="createTime!=null">
            create_time=#{createTime,jdbcType=TIMESTAMP},
        </if>
        id=#{id}
        where id=#{id}
    </update>

    <!--set 用法-->
    <update id="updateByIdSelectives">
        update sys_user
        <set>
            <if test="userName!=null and userName!=''">
                user_name=#{userName},
            </if>
            <if test="userPassword!=null and userPassword!=''">
                user_password=#{userPassword},
            </if>
            <if test="userEmail!=null and userEmail!=''">
                user_email=#{userEmail},
            </if>
            <if test="userInfo!=null and userInfo!=''">
                user_info=#{userInfo},
            </if>
            <if test="headImg!=null ">
                head_img=#{headImg,jdbcType=BLOB},
            </if>
            <if test="createTime!=null">
                create_time=#{createTime,jdbcType=TIMESTAMP},
            </if>
            id=#{id},
        </set>

        where id=#{id}
    </update>


    <!--trim 用法-->


    <!--foreach 用法-->
    <select id="selectByIdList" resultType="org.simple.model.SysUser">
        select id,
        user_name,
        user_password,
        user_email,
        user_info,
        head_img,
        create_time
        from sys_user
        where id in
        <foreach collection="list" open="(" close=")" separator=","
                 item="id" index="i">
            #{id}
        </foreach>
    </select>

    <!--批量插入-->
    <insert id="insertList">
        insert into sys_user(user_name,
        user_password,
        user_email,
        user_info,
        head_img,
        create_time)
        values
        <foreach collection="list" item="user" separator=",">
            (
            #{user.userName},#{user.userPassword},#{user.userEmail},
            #{user.userInfo}, #{user.headImg,jdbcType=BLOB},
            #{user.createTime,jdbcType=TIMESTAMP}
            )
        </foreach>

    </insert>


    <!--批量删除-->
    <delete id="delList">
        delete from sys_user
        <where>
            id in
            <foreach collection="list" open="(" close=")" separator="," item="id" index="i">
                #{id}
            </foreach>
        </where>
    </delete>

    <!--foreach 实现动态UPDATE-->
    <update id="updateByMap">
        update sys_user
        set
        <foreach collection="_parameter" item="val" index="key" separator=",">
            ${key}=#{val}
        </foreach>
        where id=#{id}
    </update>
</mapper>

package org.simple.mapper;

import org.apache.ibatis.annotations.*;
import org.apache.ibatis.type.JdbcType;
import org.simple.model.SysRole;

import java.util.List;

public interface SysRoleMapper {
    @Select({"select id,role_name,enabled,create_by,create_time",
            "from sys_role",
            "where id=#{id}"})
    SysRole selectById(Long id);


    @Results({
            @Result(property = "id", column = "id", id = true),
            @Result(property = "roleName", column = "role_name"),
            @Result(property = "enabled", column = "enabled"),
            @Result(property = "createBy", column = "create_by"),
            @Result(property = "createTime", column = "create_time", jdbcType = JdbcType.TIMESTAMP)
    })
    @Select({"select id,role_name,enabled,create_by,create_time",
            "from sys_role",
            "where id=#{id}"})
    SysRole selectById2(Long id);

    @Select("select *from sys_role")
    List<SysRole> selectAll();

    //不需要返回主键添加
    @Insert({"insert into sys role (id, role_name, enabled, create_by, create_time )",
            "values(#{id}, #{roleName}, #{enabled}, #{createBy },",
            "#{ createTime , jdbcType=TIMESTAMP })"})
    int insert(SysRole role);

    //返回自增主键添加
    @Insert({"insert into sys role (id, role_name, enabled, create_by, create_time )",
            "values(#{id}, #{roleName}, #{enabled}, #{createBy },",
            "#{ createTime,jdbcType=TIMESTAMP })"})
    @Options(useGeneratedKeys = true, keyProperty = "id")
    int insert1(SysRole role);

    @Update({"update sys_user",
            " set role_name=#{roleName},enabled=#{enabled}，create_by=#{createBy}，",
            "create_time=#{createTime,jdbcType=TIMESTAMP}",
    "where id=#{id}"})
    int updateById(SysRole role);


    @Delete({"delete from sys_role where id=#{id}"})
    int deleteById(Long id);
}



//BaseMapper

package org.simple.utils;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.BeforeClass;
import org.simple.model.SysUser;

import java.io.IOException;
import java.io.Reader;
import java.util.List;

public class BaseMapper
{
    private static SqlSessionFactory sqlSessionFactory;

    @BeforeClass
    public static void init() throws IOException {
        // 读取mybatis-config.xml配置文件
        Reader reader = Resources.getResourceAsReader("mybatis-config.xml");
        sqlSessionFactory=new SqlSessionFactoryBuilder().build(reader);
        reader.close();
    }

    public SqlSession getSqlSession(){

        return sqlSessionFactory.openSession();
    }



}