ios – 如何将UIImage序列化为JSON？

[Dic setObject:imagedata forKey:@"image"];

您需要将uIImage转换为NSData,然后将该NSData转换为NSString,它将是您数据的base64字符串表示形式.

从NSData *获得NSString *后,您可以将其添加到密钥@“image”的字典中

要将NSData转换为base64类型NSString *,请参阅以下@L_197_3@：
How do I do base64 encoding on iphone-sdk?

以更伪的方式,该过程将如下所示

UIImage *my_image; //your image handle
NSData *data_of_my_image = UIImagePNGRepresentation(my_imagE);
NSString *base64StringOf_my_image = [data_of_my_image convertToBase64String];

//Now you can add it to your Dictionary
NSMutableDictionary *Dict = [NSMutableDictionary Dictionary];
[Dict setObject:base64StringOf_my_image forKey:@"image"];

if ([NSJSONserialization isValidJSONObject:Dict]) //perform a check
{
        NSLog(@"valid object for JSON");
        NSError *error = nil;
        NSData *jsonData = [NSJSONserialization dataWithJSONObject:Dict options:NSJSONWriTingPrettyPrinted error:&error];


        if (error!=nil) {
            NSLog(@"Error creaTing JSON Data = %@",error);
        }
        else{
            NSLog(@"JSON Data created successfully.");
        }
}
else{
        NSLog(@"not a valid object for JSON");
    }