Commonly used methods to convert strings to date and date to strings, the specific content is as follows
package com.cq2022.zago.base.util; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.GregorianCalendar; import javax.xml.datatype.DatatypeFactory; import javax.xml.datatype.XMLGregorianCalendar; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /*** * Date tool class * * @author shijing * */ public class DateUtils { private static final Logger logger = LoggerFactory.getLogger(DateUtils.class); /*** * Convert Date type to XMLGregorianCalendar type* * @param date * @return */ public static XMLGregorianCalendar convertToXMLGregorianCalendar(Date date) { GregorianCalendar cal = new GregorianCalendar(); cal.setTime(date); XMLGregorianCalendar gc = null; try { gc = DatatypeFactory.newInstance().newXMLGregorianCalendar(cal); } catch (Exception e) { logger.error("Date type converted to XMLGregorianCalendar type error: "+e); } return gc; } /*** * XMLGregorianCalendar type converted to Date type* * @param cal * @return * @throws Exception */ public static Date convertToDate(XMLGregorianCalendar cal) throws Exception { GregorianCalendar ca = cal.toGregorianCalendar(); return ca.getTime(); } /** * String to Date * March 25, 2015 at 11:27:14 am * auther:shijing * @param str Date string * @param format Convert format * @return * Date */ public static Date stringToDate(String str, String format) { DateFormat dateFormat = new SimpleDateFormat(format); Date date = null; try { date = dateFormat.parse(str); } catch (ParseException e) { logger.error("String type to Date type error: "+e); } return date; } /** * Date to String * auther: shijing * March 25, 2015 at 11:28:14 am * @param date date* @param format Convert format* @return */ public static String dateToString(Date date,String format){ DateFormat dateFormat = new SimpleDateFormat(format); String strDate=null; try { if(date!=null){ strDate=dateFormat.format(date); } } catch (Exception e) { // TODO Auto-generated catch block logger.error("Date type to String type error: "+e); } return strDate; } /*** * Test method* * @param args */ public static void main(String[] args) { XMLGregorianCalendar d = DateUtils .convertToXMLGregorianCalendar(new Date()); // System.out.println(d.getDay()); XMLGregorianCalendar cal = null; try { cal = DatatypeFactory.newInstance().newXMLGregorianCalendar(); cal.setMonth(06); cal.setYear(2010); Date date = DateUtils.convertToDate(cal); String format = "yyyy-MM-dd HH:mm:ss"; SimpleDateFormat formatter = new SimpleDateFormat(format); // System.out.println(formatter.format(date)); Date d1 = DateUtils.stringToDate("2014/7/24 9:51:00", "yyyy/MM/dd hh:mm:ss"); XMLGregorianCalendar d2 = DateUtils.convertToXMLGregorianCalendar(d1); // System.out.println(d2.toString()); String dateStr=DateUtils.dateToString(cal.toGregorianCalendar().getTime(), "yyyy-MM-dd HH:mm:ss"); // System.out.println("dateStr="+ dateStr); } catch (Exception e) { e.printStackTrace(); } } }The above is all the content of this article. I hope it will be helpful to everyone's learning and I hope everyone will support Wulin.com more.