由于Struts2匹配日期时,使用了Locale,服务器默认的语言环境是英语,就会出现日期类型转换异常,如果把中文设置为默认语言环境,再测试,没问题了。终于知道了原因。
写一个日期类型转换器就行了!
页面日期类型:
写一个日期类型转换器就行了!
页面日期类型:
- 开始日期:<s:datetimepicker name="product.startDate" displayFormat="yyyy-MM-dd" />
转换器如下:
- package cn.anycall.conversion;
- import java.text.ParseException;
- import java.text.SimpleDateFormat;
- import java.util.Date;
- import java.util.Map;
- import ognl.DefaultTypeConverter;
- import org.apache.commons.lang.StringUtils;
- import org.apache.commons.lang.time.DateUtils;
- import org.apache.log4j.Logger;
- public class DateConverter extends DefaultTypeConverter {
- private static final Logger logger = Logger.getLogger(DateConverter.class);
- private static final String DATETIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
- private static final String DATE_PATTERN = "yyyy-MM-dd";
- private static final String MONTH_PATTERN = "yyyy-MM";
- /**
- * Convert value between types
- */
- @SuppressWarnings("unchecked")
- public Object convertValue(Map ognlContext, Object value, Class toType) {
- Object result = null;
- if (toType == Date.class) {
- try {
- result = doConvertToDate(value);
- } catch (ParseException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- } else if (toType == String.class) {
- result = doConvertToString(value);
- }
- return result;
- }
- /**
- * Convert String to Date
- *
- * @param value
- * @return
- * @throws ParseException
- */
- private Date doConvertToDate(Object value) throws ParseException {
- Date result = null;
- if (value instanceof String) {
- result = DateUtils.parseDate((String) value, new String[] { DATE_PATTERN, DATETIME_PATTERN, MONTH_PATTERN });
- // all patterns failed, try a milliseconds constructor
- if (result == null && StringUtils.isNotEmpty((String)value)) {
- try {
- result = new Date(new Long((String) value).longValue());
- } catch (Exception e) {
- logger.error("Converting from milliseconds to Date fails!");
- e.printStackTrace();
- }
- }
- } else if (value instanceof Object[]) {
- // let's try to convert the first element only
- Object[] array = (Object[]) value;
- if ((array != null) && (array.length >= 1)) {
- value = array[0];
- result = doConvertToDate(value);
- }
- } else if (Date.class.isAssignableFrom(value.getClass())) {
- result = (Date) value;
- }
- return result;
- }
- /**
- * Convert Date to String
- *
- * @param value
- * @return
- */
- private String doConvertToString(Object value) {
- SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DATETIME_PATTERN);
- String result = null;
- if (value instanceof Date) {
- result = simpleDateFormat.format(value);
- }
- return result;
- }
- }
可以将该转换器注册为全局的:在classpath下建立xwork-conversion.properties文件,内容为:java.util.Date=cn.anycall.conversion.DateConverter