MyBatis-Plus BaseMapper and IService Manual

Note	mapper	service	Note
	DDML	Further packages: The query get a single line, remove delete, list a set of queries, page pagination
	int insert(T entity);	boolean save(T entity);	Select the field, strategy insert
		boolean saveBatch(Collection entityList);	Bulk Insert
		boolean saveOrUpdateBatch(Collection entityList);
	int deleteById(Serializable id);	boolean removeById(Serializable id);
According entity deletion condition	int delete(Wrapper wrapper);	boolean remove(Wrapper queryWrapper);	No corresponding record returns true
columnMap delete condition	int deleteByMap(Map<String, Object> columnMap);	boolean removeByMap(Map<String, Object> columnMap);	Field map object columnMap
	int updateById(T entity);	boolean updateById(T entity);
		boolean saveOrUpdate(T entity);
	T selectById(Serializable id);	T getById(Serializable id);
columnMap query	List selectByMap(Map<String, Object> columnMap);	Collection listByMap(Map<String, Object> columnMap);
If a non-unique logic required wrapper.last ( "limit 1") is provided Uniqueness	T selectOne(Wrapper queryWrapper);	T getOne(Wrapper queryWrapper);	Taking a plurality of
	Integer selectCount(Wrapper queryWrapper);	int count(Wrapper queryWrapper);
	List selectList(Wrapper queryWrapper);	List list(Wrapper queryWrapper);
Only query a field List <Object> cols; List <String> L = (List) cols;	List<Object> selectObjs(Wrapper queryWrapper);	List<Object> listObjs(Wrapper queryWrapper);	According Wrapper conditions, query all records
	IPage selectPage(IPage page, Wrapper queryWrapper);	IPage page(IPage page, Wrapper queryWrapper);