java日期转换

来源：互联网发布：北语网络教学平台编辑：程序博客网时间：2024/06/05 19:12

首先是这个网址：http://www.blogjava.net/biiau/archive/2008/10/04/231129.html

然后是：

public class DateTypeConverter extends StrutsTypeConverter {
public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";

public static final DateFormat[] ACCEPT_DATE_FORMATS = {
      new SimpleDateFormat("yyyy-MM-dd HH:mm"),
   new SimpleDateFormat(DEFAULT_DATE_FORMAT),
   new SimpleDateFormat("dd/MM/yyyy"),
   new SimpleDateFormat("yyyy/MM/dd")

   };

public DateTypeConverter() {
}

@Override
public Object convertFromString(Map context, String[] values, Class toClass) {
  if (values[0] == null || values[0].trim().equals("")) {
   return null;
  }
  for (DateFormat format : ACCEPT_DATE_FORMATS) {
   try {
    return format.parse(values[0]);
   } catch (ParseException e) {
    continue;
   } catch (RuntimeException e) {
    continue;
   }
  }
  return null;
}

@Override
public String convertToString(Map context, Object o) {
  if (o instanceof Date) {
   SimpleDateFormat format = new SimpleDateFormat(DEFAULT_DATE_FORMAT);
   try {
    return format.format((Date) o);
   } catch (RuntimeException e) {
    return "";
   }
  }
  return "";
}

}

例子：

String date_str ="2010-11-09 01:20";
  DateTypeConverter dtc = new DateTypeConverter();
  Date d = (Date)dtc.convertFromString(null, new String[]{date_str}, null);
  System.out.println(d.toString());