mybatis 插入一条记录 参数为map的写法

xml：

    <insert id="insertUser" parameterType="java.util.Map">
        insert into user (
        id,
        <foreach collection="columnMap" item="value" index="key" separator=",">
            ${key}
        </foreach>
        )
        values (
        SEQ_USER.NEXTVAL,
        <foreach collection="columnMap" item="value" index="key" separator=",">
            #{value}
        </foreach>
        )
    </insert>

代码：

            Map<String, Object> columnMap = new HashMap<>();
            columnMap.put("name", "xiaoming");
            columnMap.put("password", "123");
            columnMap.put("columnMap", columnMap);
            userService.insertProvBatchDoc(columnMap);