Mybatis-Flex is an elegant Mybatis Enhancement Framework.

Features

1、Mybatis-Flex is very lightweight, and it only depends on Mybatis and no other third-party dependencies
2、Basic CRUD operator and paging query of Entity class
3、Row mapping support, you can add, delete, modify and query the database without entity classes
4、Support multiple databases, and expand through dialects flexibly.
5、Support combined primary keys and different primary key content generation strategies
6、Extremely friendly SQL query, IDE automatically prompts and no worries about mistakes
7、More little surprises

hello world

Entity Class


@Table("tb_account")
public class Account {

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

    //getter setter
}

AccountMapper Class

public interface AccountMapper extends BaseMapper<Account> {
    //only Mapper interface define.
}

Hello world

e.g. 1： query 1 data

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();


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

e.g.2: query list

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();
        
        //use QueryWrapper to build query conditions
        QueryWrapper query = QueryWrapper.create()
                .select()
                .from(ACCOUNT)
                .where(ACCOUNT.ID.ge(100))
                .and(ACCOUNT.USER_NAME.like("zhang").or(ACCOUNT.USER_NAME.like("li")));

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

e.g.3: paging query

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();

        //use QueryWrapper to build query conditions
        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());

        // execute 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)
                );

    }
}

4.4 KiB Raw Blame History Unescape Escape

Mybatis-Flex is an elegant Mybatis Enhancement Framework.

Features

hello world

More Samples

4.4 KiB

Raw Blame History