Correspondence between MySQL, JdbcType and JavaType

Correspondence between MySQL, JdbcType and JavaType

Common data type mapping table

MySQL	JDBCType	JavaType	Remarks
char	CHAR	String	Fixed-length character
varchar	VARCHAR	String	Variable length character
tinyint	TINYINT	byte	1 byte
smallint	SMALLINT	short	2 bytes
int	INTEGER	int	4 bytes
float	FLOAT	float	4 bytes
bigint	BIGINT	long	8 bytes
double	DOUBLE	double	8 bytes
bit	BOOLEAN	boolean	Boolean type

Date time and large object mapping table

MySQL	JDBCType	JavaType	Remarks
date	DATE	java.util.Date、java.sql.Date	YYYY-MM-DD
time	TIME	java.util.Date、java.sql.Date	HH:MM:SS
timestamp	TIMESTAMP	java.util.Date、java.sql.Date	YYYY-MM-DD HH:MM:SS (not strictly in this format, rather messy)
text	VARCHAR	String	Text type (2^16-1 byte)
longtext	LONGVARCHAR	String	Long text type (2^32-1 byte)

note:

To convert datetimedata of a type in MySQL into data in a yyyy-MM-dd HH:mm:ssformat, you need to use MySQL library functions. DATE_FORMAT()
You can refer to the following:
https://blog.csdn.net/qq_27198345/article/details/112605258