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2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00
2023-03-01 13:10:17 +08:00

Mybatis-Flex 一个优雅的 Mybatis 增强框架

特征

  • 1、很轻量整个框架只依赖 Mybatis 再无其他任何第三方依赖
  • 2、Entity 类基本的增删改查、分页查询
  • 3、Row 通用映射支持,可以无需实体类对数据库进行增删改查
  • 4、支持多种数据库类型自由通过方言持续扩展
  • 5、支持联合主键以及不同的主键下的主键内容生成策略
  • 6、极其友好的 SQL 联动查询IDE 自动提示不再担心出错
  • 7、以及更多小惊喜

hello world

实体类


@Table("tb_account")
public class Account {

    @Id()
    private Long id;
    private String userName;
    private Date birthday;
    private int sex;

    //getter setter
}

AccountMapper 类

public interface AccountMapper extends BaseMapper<Account> {
    //只需定义 Mapper 接口即可,可以无任何内容。
}

Hello world

示例 1查询 1 条数据

class HelloWorld {
    public static void main(String... args) {

        HikariDataSource dataSource = new HikariDataSource();
        dataSource.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/mybatis-flex");
        dataSource.setUsername("username");
        dataSource.setPassword("password");

        MybatisFlexBootstrap.getInstance()
                .setDatasource(dataSource)
                .addMapper(AccountMapper.class)
                .start();


        //示例1查询 id=100 条数据
        Account account = MybatisFlexBootstrap.getInstance()
                .execute(AccountMapper.class, mapper ->
                        mapper.selectOneById(100)
                );
    }
}

示例2查询列表

class HelloWorld {
    public static void main(String... args) {

        HikariDataSource dataSource = new HikariDataSource();
        dataSource.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/mybatis-flex");
        dataSource.setUsername("username");
        dataSource.setPassword("password");

        MybatisFlexBootstrap.getInstance()
                .setDatasource(dataSource)
                .addMapper(AccountMapper.class)
                .start();
        
        //示例2通过 QueryWrapper 构建条件查询数据列表
        QueryWrapper query = QueryWrapper.create()
                .select()
                .from(ACCOUNT)
                .where(ACCOUNT.ID.ge(100))
                .and(ACCOUNT.USER_NAME.like("张").or(ACCOUNT.USER_NAME.like("李")));

        // 执行 SQL
        // ELECT * FROM `tb_account`
        // WHERE `tb_account`.`id` >=  100
        // AND (`tb_account`.`user_name` LIKE '%张%' OR `tb_account`.`user_name` LIKE '%李%' )
        List<Account> accounts = MybatisFlexBootstrap.getInstance()
                .execute(AccountMapper.class, mapper ->
                        mapper.selectListByQuery(query)
                );
        
    }
}

示例3分页查询

class HelloWorld {
    public static void main(String... args) {

        HikariDataSource dataSource = new HikariDataSource();
        dataSource.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/mybatis-flex");
        dataSource.setUsername("username");
        dataSource.setPassword("password");

        MybatisFlexBootstrap.getInstance()
                .setDatasource(dataSource)
                .addMapper(AccountMapper.class)
                .start();

        // 示例3分页查询
        // 查询第 5 页,每页 10 条数据,通过 QueryWrapper 构建条件查询
        QueryWrapper query = QueryWrapper.create()
                .select()
                .from(ACCOUNT)
                .where(ACCOUNT.ID.ge(100))
                .and(ACCOUNT.USER_NAME.like("张").or(ACCOUNT.USER_NAME.like("李")))
                .orderBy(ACCOUNT.ID.desc());

        // 执行 SQL
        // ELECT * FROM `tb_account`
        // WHERE `tb_account`.`id` >=  100
        // AND (`tb_account`.`user_name` LIKE '%张%' OR `tb_account`.`user_name` LIKE '%李%' )
        // ORDER BY `tb_account`.`id` DESC
        // LIMIT 40,10
        Page<Account> accounts = MybatisFlexBootstrap.getInstance()
                .execute(AccountMapper.class, mapper ->
                        mapper.paginate(5, 10, query)
                );

    }
}
Description
MyBatis-Flex 一个优雅的 MyBatis 增强框架
Readme Apache-2.0 17 MiB
Languages
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