baomidou/mybatis-plus

MyBatis-Plus is a toolkit that extends MyBatis, a popular Java library for talking to databases. MyBatis is an ORM (Object-Relational Mapper), software that lets your Java code interact with a database by translating between Java objects and database rows, so you don't have to write raw SQL for every operation. MyBatis-Plus builds on top of MyBatis without replacing it, adding commonly needed features that would otherwise require repetitive boilerplate code. The main benefit is speed of development. Out of the box, you get ready-made database operations, querying, inserting, updating, and deleting records, without writing any SQL for standard cases. For example, to fetch all users aged 18 and older, you write a few lines of Java using a "wrapper" object, and the library generates the correct SQL automatically. It also handles pagination (splitting large result sets into pages), automatic primary key generation, and SQL injection defense (protection against a common database security attack). Other features include a lambda-style API (a modern, type-safe way to reference database fields), active record support (a pattern where a Java object knows how to save or delete itself), and a code generator that can create boilerplate Java files automatically from your database schema. MyBatis-Plus is used in Java backend projects where you need database access and want to reduce repetitive code. It supports databases like MySQL and PostgreSQL, and integrates with Spring Boot via a starter dependency. The project is licensed under Apache 2.0.