（转）Mybatis insert后返回主键给实体对象（Mysql数据库）

<insert id="insert" parameterType="com.zqgame.game.website.models.Team">
            <selectKey resultType="java.lang.Integer" keyProperty="teamId" order="AFTER">
                SELECT LAST_INSERT_ID()
            </selectKey>
            INSERT INTO kz_team
            <trim prefix="(" suffix=")" suffixOverrides=",">
                <if test="teamId != null">
                    `team_id`,
                </if>
                <if test="teamName != null">
                    `team_name`,
                </if>
                <if test="regionId != null">
                    `region_id`,
                </if>
                <if test="provinceId != null">
                    `province_id`,
                </if>
                <if test="cityId != null">
                    `city_id`,
                </if>
                <if test="address != null">
                    `address`,
                </if>
                <if test="idImg != null">
                    `id_img`,
                </if>
                <if test="teamLogo != null">
                    `team_logo`,
                </if>
                <if test="introduce != null">
                    `introduce`,
                </if>
                <if test="accountId != null">
                    `account_id`,
                </if>
            </trim>
            <trim prefix="values (" suffix=")" suffixOverrides=",">
                <if test="teamId != null">
                    #{teamId,jdbcType=INTEGER},
                </if>
                <if test="teamName != null">
                    #{teamName,jdbcType=VARCHAR},
                </if>
                <if test="regionId != null">
                    #{regionId,jdbcType=INTEGER},
                </if>
                <if test="provinceId != null">
                    #{provinceId,jdbcType=INTEGER},
                </if>
                <if test="cityId != null">
                    #{cityId,jdbcType=INTEGER},
                </if>
                <if test="address != null">
                    #{address,jdbcType=VARCHAR},
                </if>
                <if test="idImg != null">
                    #{idImg,jdbcType=VARCHAR},
                </if>
                <if test="teamLogo != null">
                    #{teamLogo,jdbcType=VARCHAR},
                </if>
                <if test="introduce != null">
                    #{introduce,jdbcType=VARCHAR},
                </if>
                <if test="accountId != null">
                    #{accountId,jdbcType=INTEGER},
                </if>
            </trim>
    </insert>  

<selectKey resultType="Java.lang.Integer" keyProperty="teamId" order="AFTER">  //teamId实体类主键
     SELECT LAST_INSERT_ID()
</selectKey>

或者

给<insert id="xx"   useGeneratedKeys="true" keyProperty="teamId"> 加入2个属性就可以省略上面那句<selectKey>xxxxxx</selectKey>

在mybatis中标红的那句话 能将插入的主键返回给实体对象

if (StringUtils.isEmpty(team.getTeamLogo())) {
    team.setTeamLogo(defaultTeamLogo);
}
    team.setAccountId(accountId);
    insert(team);  

    System.out.println(team.getTeamId());  

对于业务中需要取得插入后的主键id值得童鞋来说很方便

不过那个函数貌似是MySQL提供的 需要其他数据库的另外寻找方法