如何解析来自JSON

Question

"weatherIconUrl": [ 
{ 
"value": "http://cdn.worldweatheronline.net/images/wsymbols01_png_64/wsymbol_0001_sunny.png" 
} 
], 

图像的URL，这是我的JSON数据，我可以能够获取文本类型的数据，但我可以不能够从weatherIconUrl数组提取图像URL

Answer 1

使用下面的一行代码拿到钥匙@"value"

NSString * imgURLString = [[[myMaindictonary objectForKey:@"weatherIconUrl"] objectAtIndex:0] objectForKey:@"value"]; 

值并将其转换该字符串URL

NSURL *myURL = [NSURL URLWithString:[imgURLString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; 

，你可以一LSO通过

UIImage *myImg = [UIImage imageWithData:[NSData dataWithContentsOfURL:myURL]]; 

Answer 2

其获取图像从该网址很容易，

NSError *jsonParsingError = nil; 

NSArray *weatherArray = [NSJSONSerialization JSONObjectWithData:yourResponseData options:0 error:&jsonParsingError]; 

NSLog(@"weatherArray : %@", weatherArray); 

NSString *weatherIconImageURL = [[weatherArray objectAtIndex:0] objectForKey:@"weatherIconUrl"]]; 

NSLog(@"weatherIconImageURL : %@", weatherIconImageURL);