字典或者数组与JSON串之间的转换

Posted 2020-08-07 筱简單

// 将字典或者数组转化为JSON串
+ (NSData *)toJSONData:(id)theData
{
    NSError *error = nil;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:theData options:NSJSONWritingPrettyPrinted error:nil];
    
    if ([jsonData length]&&error== nil){
        return jsonData;
    }else{
        return nil;
    }
}

// 将JSON串转化为字典或者数组
+ (id)toArrayOrNSDictionary:(NSData *)jsonData{
    
    NSError *error = nil;
    id jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData
                                                    options:NSJSONReadingAllowFragments
                                                      error:nil];
    
    if (jsonObject != nil && error == nil){
        return jsonObject;
    }else{
        // 解析错误
        return nil;
    }
    
}