MyBatis 【单独连接】

        Configuration conf = new Configuration();

        conf.setEnvironment(
                new Environment.Builder("only")
                .transactionFactory(new JdbcTransactionFactory())
                .dataSource(new PooledDataSource(
                        "com.mysql.jdbc.Driver",
                        "jdbc:mysql://127.0.0.1:3306/xxx_rule_engine",
                        "root",
                        "123456"
                        )).build());

        conf.addMapper(PrizeMapper.class);

        SqlSessionFactory ssf = new SqlSessionFactoryBuilder().build(conf);
        SqlSession openSession = ssf.openSession();
        PrizeMapper mapper = openSession.getMapper(PrizeMapper.class);

        List<PrizeModel> list = mapper.list(new PrizeModel());

        System.out.println(list);