id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fcis-31622	Fu, Ziang	Design and Implementation of a Group Tour Information System for South of the Clouds Based on the SSM Framework	2025	6	.pdf	application/pdf	2997	171	38	Data access methods are declared within Mapper interfaces; for example, the UserMapper may contain User selectUserById(Long userId); to retrieve user information by ID. The UserService interface defines a series of business methods related to user operations, such as User getUserById(int userId); for retrieving specific user information by user ID.	cache/fcis-31622.pdf	txt/fcis-31622.txt