Spring Boot实现MyBatis动态创建表的操作语句

@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private IUserService userService;
    @PostMapping(value="/add")
    public Object addUser(@RequestBody User user) {
        return userService.addUser(user);
    }
}

@Service("userService")
public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IUserService {
​
    @Resource
    private UserMapper userMapper;
    @Resource
    private UserLogMapper userLogMapper;
​
    @Override
    @Transactional
    public User addUser(User user) {
        // 插入
        userMapper.saveUser(user);
        // 添加用户时，创建日志存储表
        Integer id = user.getId();
        //定义用户日志表表名
        String tableName = "t_user_log_" + id;
        //查询表是否存在
        if (userLogMapper.existTable(tableName) > 0) {
            //删除用户对应的日志表
            userLogMapper.dropTable(tableName);
        }
        //新创建表
        userLogMapper.createTable(tableName);
        return user;
    }
}

@Mapper
public interface UserMapper extends BaseMapper<User> {
    int saveUser(@Param("user") User user);
}

<?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="flutter.dio.model.mapper.UserMapper">
    <insert id="saveUser"  useGeneratedKeys="true" keyProperty="id">
        insert into t_user(name,password,age)
        values(#{user.name},#{user.password},#{user.age})
    </insert>
</mapper>

public interface UserLogMapper {
    //保存用户的日志 
    int insert(@Param("tableName")String tableName, @Param("userLog") UserLog userLog);
    /**
     * 查找用户全部的日志
     * @param tableName 用户对应的表名
     * @return
     */
    List<UserLog> selectAll(@Param("tableName")String tableName);
​
    /**
     * 是否存在表
     * @param tableName
     * @return
     */
    int existTable(@Param("tableName")String tableName);
    /**
     * 删除表
     * @param tableName
     * @return
     */
    int dropTable(@Param("tableName")String tableName);
    /**
     * 创建表
     * @param tableName
     * @return
     */
    int createTable(@Param("tableName")String tableName);
}

<?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="flutter.dio.model.mapper.UserLogMapper">
    <resultMap id="BaseResultMap" type="flutter.dio.model.entity.UserLog">
        <id column="id" jdbcType="BIGINT" property="id"/>
        <result column="user_name" jdbcType="VARCHAR" property="userName"/>
        <result column="operation" jdbcType="VARCHAR" property="operation"/>
        <result column="method" jdbcType="VARCHAR" property="method"/>
        <result column="params" jdbcType="VARCHAR" property="params"/>
        <result column="time" jdbcType="BIGINT" property="time"/>
        <result column="ip" jdbcType="VARCHAR" property="ip"/>
    </resultMap>
    <sql id="Base_Column_List">
        id, user_name, operation, method, params, time, ip
    </sql>
​
    <insert id="insert" parameterType="flutter.dio.model.entity.UserLog">
        insert into ${tableName} (id, user_name, operation,
                                  method, params, time,
                                  ip)
        values (#{userLog.id,jdbcType=BIGINT}, #{userLog.userName,jdbcType=VARCHAR},
                #{userLog.operation,jdbcType=VARCHAR},
                #{userLog.method,jdbcType=VARCHAR}, #{userLog.params,jdbcType=VARCHAR}, #{userLog.time,jdbcType=BIGINT},
                #{userLog.ip,jdbcType=VARCHAR})
    </insert>
​
    <select id="selectAll" resultMap="BaseResultMap">
        select
        <include refid="Base_Column_List"/>
        from ${tableName}
    </select>
​
    <!--    查看指定的表是否存在-->
    <select id="existTable" parameterType="String" resultType="Integer">
        select count(*)
        from information_schema.TABLES
        where table_name = #{tableName}
    </select>
    <!-- 删除指定的表-->
    <update id="dropTable">
        DROP TABLE IF EXISTS ${tableName}
    </update>
    <!-- 创建新的日志表-->
    <update id="createTable" parameterType="String">
        CREATE TABLE ${tableName}
        (
            `id`        bigint(20) NOT NULL AUTO_INCREMENT COMMENT '编号',
            `user_name` varchar(50)   DEFAULT NULL COMMENT '用户名',
            `operation` varchar(50)   DEFAULT NULL COMMENT '用户操作',
            `method`    varchar(200)  DEFAULT NULL COMMENT '请求方法',
            `params`    varchar(5000) DEFAULT NULL COMMENT '请求参数',
            `time`      bigint(20) NOT NULL COMMENT '执行时长(毫秒)',
            `ip`        varchar(64)   DEFAULT NULL COMMENT 'IP地址',
            PRIMARY KEY (`id`)
        ) ENGINE=InnoDB AUTO_INCREMENT=2897 DEFAULT CHARSET=utf8 COMMENT='用户操作日志';
    </update>
</mapper>