注册webwork/struts2的类型转换器
以全局时间统一控制为例：
时间转换器
package cn.aweb.awebvideo.meetingRealTime.util;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Map;import ognl.DefaultTypeConverter;import com.opensymphony.xwork.XworkException;public class DateConverter extends DefaultTypeConverter { private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm"); public Object convertValue(Map ognlContext, Object value, Class toType) { Object result = null; if (toType == Date.class) { result = doConvertToDate(value); } else if (toType == String.class) { result = doConvertToString(value); } return result; } private Date doConvertToDate(Object value) { Date result = null; if (value instanceof String) { try {result = sdf.parse((String) value);} catch (java.text.ParseException e) {throw new XworkException("Could not parse date", e); } } else if (value instanceof Object[]) { 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; } private String doConvertToString(Object value) { String result = null; if (value instanceof Date) { result = sdf.format(value); } return result; } }注册需要的配置文件xwork-conversion.propertiesjava.util.Date=cn.aweb.awebvideo.meetingRealTime.util.DateConverter
