如何将日期从表单插入到数据库中类型为Datetime的列中

Question

I got the date which is a string from a form. The date looks like xxxx-xx-xx xx:xx:xx

How can I save this date string to a column whose type is datetime in the database.

I use PreparedStatement psta = new PreparedStatement(sql) to set the values for the sql.

So for the Datetime type column, when i pre-set the value. I should use psta.setDate() or use psta.setString()?

Answer 1

Please ignore all the comments and other answers that says to use setDate() . Instead, you have to use setTimestamp() , because your date string has time-of-day (hour, minute, second).

1. First, you have to parse the text using SimpleDateFormat .
2. Then convert from java.util.Date to java.sql.Timestamp .
3. Finally call setTimestamp() .

All in all, like this:

SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
java.util.Date date = fmt.parse(dateString);
psta.setTimestamp(1, new java.sql.Timestamp(date.getTime()));

Answer 2

1. Use SimpleDateFormat to convert your String to Date.

   ref: How to convert a String to a Date using SimpleDateFormat?

2. Use psta.setDate() to set date for your sql query.

   ref : Using setDate in PreparedStatement