public static java.util.Date str2date(String s, String pattern){
SimpleDateFormat df = (SimpleDateFormat)DateFormat.getDateInstance();
synchronized(df) {
df.applyPattern(pattern);
df.setLenient(false); try {
java.util.Date date = df.parse(s); return date; } catch(Exception e) {
}
}
return null;
}不返回null就是正确的日期。
pattern是(yyyyMMdd, yyyy-MM-dd and so on)
SimpleDateFormat df = (SimpleDateFormat)DateFormat.getDateInstance();
synchronized(df) {
df.applyPattern(pattern);
df.setLenient(false); try {
java.util.Date date = df.parse(s); return date; } catch(Exception e) {
}
}
return null;
}不返回null就是正确的日期。
pattern是(yyyyMMdd, yyyy-MM-dd and so on)
* <p>
*
* Checks if the field is a valid date. If the field has a datePattern variable,
* that will be used to format <code>java.text.SimpleDateFormat</code>. If the
* field has a datePatternStrict variable, that will be used to format <code>java.text.SimpleDateFormat</code>
* and the length will be checked so '2/12/1999' will not pass validation with
* the format 'MM/dd/yyyy' because the month isn't two digits. If no datePattern
* variable is specified, then the field gets the DateFormat.SHORT format for
* the locale. The setLenient method is set to <code>false</code> for all variations.
* </p>
*
*@param bean The bean validation is being performed on.
*@param va The <code>ValidatorAction</code> that is currently being performed.
*@param field The <code>Field</code> object associated with the current
* field being validated.
*@param errors The <code>ActionErrors</code> object to add errors to if any
* validation errors occur.
*@param request Current request object.
*@return A Date if valid, a null if blank or invalid.
*/
public static Date validateDate(Object bean,
ValidatorAction va, Field field,
ActionErrors errors,
HttpServletRequest request) { Date result = null;
String value = null;
if (isString(bean)) {
value = (String) bean;
} else {
value = ValidatorUtil.getValueAsString(bean, field.getProperty());
}
String datePattern = field.getVarValue("datePattern");
String datePatternStrict = field.getVarValue("datePatternStrict");
Locale locale = Resources.getLocale(request); if (!GenericValidator.isBlankOrNull(value)) {
try {
if (datePattern != null && datePattern.length() > 0) {
result = GenericTypeValidator.formatDate(value, datePattern, false);
} else if (datePatternStrict != null && datePatternStrict.length() > 0) {
result = GenericTypeValidator.formatDate(value, datePatternStrict, true);
} else {
result = GenericTypeValidator.formatDate(value, locale);
}
} catch (Exception e) {
LOG.error(e.getMessage(), e);
} if (result == null) {
errors.add(field.getKey(), Resources.getActionError(request, va, field));
}
} return result;
}
我抄的:)
不是不好,谢谢你的回答
我只是想知道还有没有其它方法论 :)