如何解析" MongoDB日期时间(ISO日期)" iOS上的NSDate(swift and objective-c)
这是json的结果:
{
"mongodate" : "2015-06-11T14:16:56.643Z"
}
我也回答了这个问题。
答案 0 :(得分:21)
<强>夫特强>
func stringToDate(date:String) -> NSDate {
let formatter = NSDateFormatter()
// Format 1
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
if let parsedDate = formatter.dateFromString(date) {
return parsedDate
}
// Format 2
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:SSSZ"
if let parsedDate = formatter.dateFromString(date) {
return parsedDate
}
// Couldn't parsed with any format. Just get the date
let splitedDate = date.componentsSeparatedByString("T")
if splitedDate.count > 0 {
formatter.dateFormat = "yyyy-MM-dd"
if let parsedDate = formatter.dateFromString(splitedDate[0]) {
return parsedDate
}
}
// Nothing worked!
return NSDate().toLocalTime()
}
<强>目标C 强>
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZ"];
NSDate *date = [dateFormat dateFromString:@"2015-06-11T14:16:56.643Z"];
格式:
// Format 1, 12Hour Style
"yyyy-MM-dd'T'HH:mm:ss.SSSZ"
2016-02-12T10:01:31.000+0000
// Format 2, 24Hour Style
"yyyy-MM-dd'T'HH:mm:SSSZ"
2016-02-12T10:01:31Z
答案 1 :(得分:2)
从iOS 10+开始,现在有ISO8601DateFormatter
。
https://developer.apple.com/reference/foundation/iso8601dateformatter
但是......它没有处理你有时从MongoDB日期字符串中获得的小数秒,这是一个简单的解决方法:
答案 2 :(得分:1)
@ fatihyildizhan答案的Swift 3更新:
func stringToDate(date: String) -> Date {
let formatter = DateFormatter()
// Format 1
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
if let parsedDate = formatter.date(from: date) {
return parsedDate
}
// Format 2
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:SSSZ"
if let parsedDate = formatter.date(from: date) {
return parsedDate
}
// Couldn't parsed with any format. Just get the date
let splitedDate = date.components(separatedBy: "T")
if splitedDate.count > 0 {
formatter.dateFormat = "yyyy-MM-dd"
if let parsedDate = formatter.date(from: splitedDate[0]) {
return parsedDate
}
}
// Nothing worked!
return Date()
}