Question

我从服务器接收日期格式为＆＃34; /日期（1413374176217）/＆＃34; 。我试过这个

 NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
 [dateFormatter setDateFormat:@"dd-MM-yyyy"]
 NSDate *dateFromString = [[NSDate alloc] init];
 dateFromString = [dateFormatter dateFromString:date];
 NSLog(@"dateFromString = %@",dateFromString);

但不起作用。

如何将其转换为字符串？

Answer 1

试试这个。

NSString *actDate = @"/Date(1326067200000)/";
NSString *nDate = [[[[actDate componentsSeparatedByString:@"("] objectAtIndex:1] componentsSeparatedByString:@")"] objectAtIndex:0];
NSDate *date = [NSDate dateWithTimeIntervalSince1970:([nDate doubleValue] / 1000)];

Answer 2

您的字符串似乎是千分之一秒的unix时间戳。假设你的意思是从服务器上获取该字符串，你可以这样做。

NSString * serverData = @"/Date(1413374176217)/";

NSString *timeString = [[serverData componentsSeparatedByCharactersInSet:[[NSCharacterSet characterSetWithCharactersInString:@"0123456789"] invertedSet]] componentsJoinedByString:@""];

double timeStamp = [timeString doubleValue];

NSTimeInterval interval = timeStamp/1000;
NSDate * date = [NSDate dateWithTimeIntervalSince1970:interval];
NSDateFormatter * formatter = [[NSDateFormatter alloc]init];
[formatter setLocale:[NSLocale currentLocale]];
[formatter setDateFormat:@"dd.MM.yyyy"];
NSString * dateString =[formatter stringFromDate:date];

NSLog(@"%@", dateString);

Answer 3

问题是返回的值是从纪元开始的毫秒数，而不是秒。 1413374176217大约是当前Unix timeStamp的1000倍。试试这样的事情

- (NSDate *)dateFromStringInMilliseconds:(NSString *)millisecondsStr
{
    // Get our string value in seconds instead of milliseconds
    NSTimeInterval unixTimestamp = [millisecondsStr doubleValue] / 1000.0;
    // Convert to an actual date.
    NSDate *actualDateVal = [NSDate dateWithTimeIntervalSince1970:unixTimestamp];
    // For good measure you could throw in an assert here if you wanted.
    // NSAssert(actualDateVal, @"actualDateVal equals nil this should never happen");
    /* If you don't have the assert you could just do the below instead of creating actualDateVal.
     * return [NSDate dateWithTimeIntervalSince1970:unixTimestamp];
     */
    return actualDateVal;
}

然后您可以将其称为NSDate *date = [self dateFromStringInMilliseconds:@"1413374176217"];

如何将NSDate转换为NSString ios？

3 个答案: