oldValue是一个时间戳字符串
newValue = ext.get("inUnitTime").toString();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
oldValue = sdf.format(new Date(Long.valueOf(oldValue+"000")));
public String getFormDate(String timeStamp){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
return sdf.format(new Date(Long.valueOf(timeStamp+"000")));
}