我的日期非常不正常，如：
星期一，2012年1月9日14:18:32 -0800（GMT）
2006年10月18日00:32:03 -0000
星期六，2006年11月18日19:52:23 UT
我做了一个非常复杂的功能来完成所有工作，但是为了学习的目的我想用try和catch再做一次。 我的问题是，我该如何处理时区？您可以在我的函数中看到所有时区，但是我也有时间（例如，...作为时区，我不想将所有情况都存储在String数组中。
我也想使用Joda-Time，（它可以是localDate或dateTime，对我来说并不重要）。
public LocalDate handleDate(String date) {
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", "2012" };
// 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)" };
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 = Integer.parseInt(m.group(1));
minutes = Integer.parseInt(m.group(2));
seconds = Integer.parseInt(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 = Integer.parseInt(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");
String cleanDate = year + "-" + month + "-" + day;
DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MMM-dd");
try {
// DateTime dt = formatter.parseDateTime(cleanDate);
// LocalDate dt = new LocalDate(cleanDate);
// return dt.toLocalDate();
// return dt;
// return new LocalDate().parse(cleanDate, formatter);
return formatter.parseLocalDate(cleanDate);
} catch (IllegalArgumentException iae) {
println("handleDate: Problem with formatting: " + cleanDate);
}
return null;
}