字串轉換成Timestamp格式
package yku; import java.sql.Timestamp; import java.text.SimpleDateFormat; public class DateUtils { private static SimpleDateFormat datetimeformat = new SimpleDateFormat( "yyyy/MM/dd HH:mm:ss"); private static SimpleDateFormat dateformat = new SimpleDateFormat( "yyyy/MM/dd"); public static Timestamp convertDate(String str) { if (str == null || str.length() == 0) return null; try { return new Timestamp(dateformat.parse(str).getTime()); } catch (Exception e) { //e.printStackTrace(); } return null; } public static Timestamp convertDateTime(String str) { if (str == null || str.length() == 0) return null; try { return new Timestamp(datetimeformat.parse(str).getTime()); } catch (Exception e) { //e.printStackTrace(); } return null; } public static void main(String args[]) { System.out.println("1."+DateUtils.convertDate("2014/01/01").toString()); System.out.println("2."+(DateUtils.convertDate("2014/0101")==null?"錯誤日期格式":"正確日期格式")); System.out.println("這裡是分割線---------------------------------------------------"); System.out.println("3."+DateUtils.convertDateTime("2014/01/01 12:33:21").toString()); System.out.println("4."+(DateUtils.convertDate("2014/0101 123321")==null?"錯誤日期時間格式":"正確日期時間格式")); } }
Ans:
1.2014-01-01 00:00:00.0 2.錯誤日期格式 這裡是分割線--------------------------------------------------- 3.2014-01-01 12:33:21.0 4.錯誤日期時間格式