我得到了这样的不规则日期列表:
2005年9月29日星期四17:52:45 GMT
2005年8月17日星期三21:21:08 +0200
2005年8月17日星期三20:08:22 +0200
星期一,2005年8月15日21:44:07 +0200
Sun,2005年7月24日21:47:09 +0200
Sun,2005年7月24日12:37:46 -0700(PDT)
Sun,2005年7月24日21:37:51 +0200
星期一,2005年7月11日21:19:38 +0200
星期一,2005年7月11日21:19:02 +0200
星期一,2005年7月11日20:43:08 +0200(CEST)
2006年11月13日14:06:20 +0000
我如何以及使用JodaTime或默认的java日期类将它们转换为DateTime或Just? (joda时间优先)。
答案 0 :(得分:0)
每个人都遵循某个DateFormat。准备chain (chain of responsibility pattern)预定义的DateFormat处理程序,并将日期字符串传递给链。让适当的处理程序解析日期并为您返回日期。
注意:这是假设您发布的日期是字符串格式的。如果你有一个java.util.Date对象,那么我相信你所看到的是一种显示时间格式。
答案 1 :(得分:0)
我不知道哥们如何用jodatime做,但你可以做的是使用
String pattern =“MM / dd / yyyy”;
SimpleDateFormat format = new SimpleDateFormat(pattern);
答案 2 :(得分:0)
Pangea当我阅读你的消息时,我很累,我想发布解决方案,然后我把它读回去,现在我意识到我可以通过尝试和null返回或者尝试不同的模式来完成它
无论如何,这是一个难以解决的问题:
String[] days = {
"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"
};
String[] months = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
String[] years = {
"2004", "2005", "2006", "2007", "2008", "2009", "2010", "2011"
};
// ORDER IS VERRY IMPORTANT!! ( MEST must be before EST for example)
String[] timesZones = {
"BST", "CET", "CEST", "CST", "CDT", "EDT", "GMT+00:00", "GMT", "IST", "MEST", "EST", "MET", "MDT", "PST", "PDT", "SAST", "UTC", "UT", "W. Europe Standard Time", "West-Europa (zomertijd)"
};
DateTime handleDate(String date) {
String origDate = date;
String timeZone = "";
String year = "";
String month = "";
String day = "";
int hours = 0;
int minutes = 0;
int seconds = 0;
// is it valid?
date = trim(date);
if (date.equals("")) {
return null;
}
// first delete the comma that comes mostly after the day
date = date.replaceAll(",", "");
// remove the day
for (int i = 0; i < days.length; i++) {
if (date.contains(days[i])) {
date = date.replace(days[i], "");
break;
}
}
// if(date.contains("23:27:17")) println(date);
for (int i = 0; i < timesZones.length; i++) {
// first check with '(' and ')'
String target = "("+timesZones[i]+")";
if (date.contains(target)) {
timeZone = timesZones[i];
date = date.replace(target, "");
break;
}
// if not found check without '(' and ')'
if (date.contains(timesZones[i])) {
timeZone = timesZones[i];
date = date.replace(timesZones[i], "");
break;
}
}
// get the month
for (int i = 0; i < months.length; i++) {
if (date.contains(months[i])) {
month = months[i].toLowerCase(); // !must be lowercase
// must be dutch on my pc
if(month.equals("oct")) month = "okt";
if(month.equals("may")) month = "mei";
if(month.equals("mar")) month = "mrt";
date = date.replace(months[i], "");
break;
}
}
// get the year
for (int i = 0; i < years.length; i++) {
if (date.contains(years[i])) {
year = years[i];
date = date.replace(years[i], "");
break;
}
}
// get the time
Pattern p = Pattern.compile("(\\d\\d):(\\d\\d):(\\d\\d)");
Matcher m = p.matcher(date);
if (m.find()) {
// also fix the time, 00 is not allowed
hours = int(m.group(1));
minutes = int(m.group(2));
seconds = int(m.group(3));
date = date.replaceAll("(\\d\\d:\\d\\d:\\d\\d)", "");
}
// get the time difference
date = date.replace("+-", "+0"); // bug fix where data is incorrect ( 16 Sep 2007 23:27:17 +-200)
p = Pattern.compile("[+|-]*(\\d\\d)\\d\\d");
m = p.matcher(date);
if (m.find()) {
int timeDifferenceH = int(m.group(1));
date = date.replaceAll("([+|-]*\\d\\d\\d\\d)", "");
}
date = " "+date; // bug fix
// get the day
for (int i = 31; i >= 1; i--) {
// first check for the ones that contains 2 digits (like 07)
String d = nf(i, 2);
if (date.contains(d)) {
day = nf(i, 2);
date = date.replace(d, "");
break;
}
// check for 1 digit
d = ""+i;
if (date.contains(d)) {
day = nf(i, 2);
date = date.replace(d, "");
break;
}
}
// there should be nothing left except white space
date = date.replace(" ", "");
if (date.equals("") == false) {
println("handleDate: problem with input\n"+date);
println(origDate+"\n");
println(year);
println(month);
println(day);
}
String cleanDate = day+"/"+month+"/"+year+" "+nf(hours, 2)+":"+nf(minutes, 2)+":"+nf(seconds, 2);
DateTimeFormatter formatter = DateTimeFormat.forPattern("dd/MMM/yyyy HH:mm:ss");
try {
DateTime dt = formatter.parseDateTime(cleanDate);
return dt;
} catch (IllegalArgumentException iae) {
println("handleDate: Problem with formatting: "+cleanDate);
}
return null;
}