ios - 如何在 iOS 上将 "MongoDB datetime (ISO Date)"解析为 NSDate(swift 和 Objective-c)

Question

如何在 iOS 上将“MongoDB datetime (ISO Date)”解析为 NSDate(swift 和 Objective-c)

这是 json 结果:

{
    "mongodate" : "2015-06-11T14:16:56.643Z"
}

我也回答了这个问题。

Answer 1

swift

  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()
}

Objective-C

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