Java Dateformat Error

Question

I am using JDatechooser netbeans swing plugin for my desktop app development. By default its dateformat is mm/dd/yy but its not the format which the db required. I need to convert it to the yyyy-mm-dd format. I tried with SimpleDateformat class and it gives me the following error: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '8/29/11' for column 'registered_date' at row 1

can anyone give me a good solution to do this properly

Thanks

Answer 1

Your database doesn't require a particular date format at all - you shouldn't be inserting the data as a string in the first place. You should use a prepared statement and use setDate . Ideally you should perform as few string conversions as possible - you don't need one when getting the value out of the JDateChooser , and you don't need one when inserting into the database:

// Unfortunately you need to convert from java.util.Date to java.sql.Date
statement.setDate(1, new java.sql.Date(chooser.getDate().getTime()));

(Note that you do potentially need to bear time zones in mind, but that's a different matter... you can call a setDate overload which takes a calendar too.)

If you've been inserting (or querying) data by constructing a full SQL statement including the values, you should stop doing that right away . Not only do you have this sort of conversion issue, but you also open yourself up to SQL injection attacks. Always use a prepared statement and specify any parameter as parameters rather than including them in the SQL.

Answer 2

Try this:

Date date = ...
DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
String date_for_mysql = df.format(date);

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