日付文字列変換の注意事項とインスタンス(クラシック)
1377 ワード
前によくこの問題に出会って、臨時に先に書いて注釈をして、すでにテストしました
/**
* date format ,
* :getDateString("20180323143557882","yyyyMMddHHmmss") getDateString("2018-03-23143557882","yyyy-MM-ddHHmmss"); getDateString("20180323143557882","yyyyMMdd_HHmmss");
* @param date :20180323143557882
* @param format yyyyMMddHHmmss
* @return
* @author huyanbin
*/
public static Date getDateString(String date, String format) {
try {
if (format == null)
format = "yyyy-MM-dd HH:mm:ss";
SimpleDateFormat sdf = new SimpleDateFormat(format);
System.out.println(sdf.parse(date));
return sdf.parse(date);
} catch (Exception e) {
return null;
}
}
/**
*
* @param date Sat Mar 24 06:39:42 CST 2018
* @param format yyyy-MM-dd HH:mm:ss
* @return
* @author huyanbin
*/
public static String dateFormatConversion(Date date, String format) {
try {
if (format == null)
format = "yyyy-MM-dd HH:mm:ss";
SimpleDateFormat sdf = new SimpleDateFormat(format);
System.out.println(sdf.format(date));
return sdf.format(date);
} catch (Exception e) {
return null;
}
}
public static void main(String[] args) {
dateFormatConversion(getDateString("20180323143557882","yyyyMMddHHmmss"),"yyyyMMdd_HHmmss");
}