Hi,

I use java.util.Date for one property in my bean, I also set up "date" type in property in my mapping file. When I insert a row into db table, then load it
by using its auto-generated id, I found the inserted date column value and the retrieved date column value are different. This is the reason why they are not equal when I compare them using equals() method. If I remove Date from my bean and mapping file, and use other types, there will be no problem.

I am wondering how you guys handle this problem with Date type?

regards,

Of course!

A java.util.Date represents a timestamp.


The Hibernate "date" type, sanely, represents a date.


Use the Hibernate "timestamp" type, which is the default mapping for a java.util.Date.

Note also that some JDBC drivers truncate or otherwise mangle java.sql.Timestamps, so equals() might not quite work anyway.

How are the dates different?

You said you map with "date" as the type. Realize that this correlates to the DATE sql type, which on most DBs keeps only the date portion and drops the time portion. If this is what you are seeing, map using "timestamp" as the type instead.

Yes, you are right guys. Just tested it, and this solved my problem.

So much to learn about Hibernate!

regards,