从NSIOS字符串获取日期

我的字符串包含：：

 [{"temperature":"96.800003","date":"2015-11-26 18:44:42","random_id":"-1963708530","temp_type":"0","drugsymptom_value":""}]

要求：

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如何仅从上述字符串中获取日期值？我将首先将其转换为JSON格式，然后您可以使用

NSDateFormatter

步骤1

将JSON字符串转换为简单字符串，如下所示

 NSString *yourString = [{"temperature":"96.800003","date":"2015-11-26 18:44:42","random_id":"-1963708530","temp_type":"0","drugsymptom_value":""}];

 NSData *jsonData = [yourString dataUsingEncoding:NSUTF8StringEncoding];
 // your yourString is started with array not a Dictionary
NSArray *dict = [NSJSONSerialization JSONObjectWithData:jsonData options:nil error:nil];

// now you have Date String
 NSString *DateSTring  = dict[0][@"date"];

步骤2

你的字符串是

 2015-11-26 18:44:42
 yyyy-MM-dd HH:mm:ss

 NSDateFormatter *dateFormatter=[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

 NSDate *finaldate=[dateFormatter dateFromString:DateSTring];


 NSLog(@" finaldate %@",finaldate);

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您的字符串是静态的还是动态的。。。