Mybatis实现动态建表代码实例

CREATE TABLE `2201011` (
    `class_id` int(8) NOT NULL COMMENT' 班级id',                                                                                                                                                                                                                
    `class_name` varchar(100) NOT NULL COMMENT '班级名称',                                                                                                                                                                                                   
    `student_count` int(10) NOT NULL COMMENT '班级学生人数', 
	`teacher_count` int(8) NOT NULL COMMENT '班级配备教师人数', 
    PRIMARY KEY (`class_id`)                                                                                                                                                                                                                                      
) ENGINE InnoDB CHARACTER SET utf8 COLLATE utf8_bin;

package springboot.mybatisplus.student.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Param;
import springboot.mybatisplus.student.entity.Student;

/**
 * <p>
 * Mapper 接口
 * </p>
 *
 * @author yuhuofei
 * @since 2022-04-05
 */
public interface StudentMapper extends BaseMapper<Student> {

    /**
     * 动态建表
     *
     * @param tableName
     * @return int
     */
    int createNewTable(@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="springboot.mybatisplus.student.mapper.StudentMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="springboot.mybatisplus.student.entity.Student">
        <id column="id" property="id"/>
        <result column="name" property="name"/>
        <result column="tid" property="tid"/>
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        id, name, tid
    </sql>

    <update id="createNewTable" parameterType="String">
        CREATE TABLE ${tableName} (
          class_id int(8) NOT NULL ,
          class_name varchar(100) NOT NULL ,
          student_count int(10) NOT NULL ,
          teacher_count int(8) NOT NULL ,
          PRIMARY KEY (class_id)
        )ENGINE InnoDB CHARACTER SET utf8 COLLATE utf8_bin
    </update>

</mapper>