<!-- https://mvnrepository.com/artifact/com.fenglinga/tinyspring -->
    <dependency>
        <groupId>com.fenglinga</groupId>
        <artifactId>tinydb</artifactId>
        <version>1.0.3</version>
    </dependency>

    Db.name("users")
        .alias("u")
        .join("tp_user_account ua", "u.id = ua.member_id")
        .field("id,recommend_id,mobile")
        .where("mobile", "12345678901")
        .find();