将NSData转换为JSON [英] Convert NSData to JSON

问题描述

我有一个 NSData 对象，我需要将它转换为 NSDictionary 对象。

I have a NSData object, i need to convert it a NSDictionary object.

NSData *data = ....;

现在我需要将其转换为 NSDictionary ，我该如何以编程方式执行此操作？

Now i need to convert this to a NSDictionary, How can i do this programatically ?

注意：我将 NSData 保存到<$ c $后c> NSDictionary 我应该能够访问键值对 NSDictionary 。

note: After i save the NSData to the NSDictionary i should be able to access key value pairs of the NSDictionary.

到目前为止，我没有代码来演示我的工作，我只创建了NSData对象，并且没有任何线索可以继续：）

I don't have a code to demonstrate my workings so far, I have only created the NSData object, and have no clue to continue :)

推荐答案

您可以使用以下内容继承MKNetworkOperation并覆盖responseJSON方法：

You can subclass MKNetworkOperation and override the responseJSON method with the following:

-(id) responseJSON
{
    NSString *rawJSON;
    id jsonValue = nil;
    if ((rawJSON = [[NSString alloc] initWithData:[self responseData] encoding:NSUTF8StringEncoding]) != nil) {
        SBJsonParser *jsonParser = [[SBJsonParser alloc] init];
        if ((jsonValue = [jsonParser objectWithString:rawJSON]) == nil) {
            NSLog(@"This string doesn't seem to be JSON: '%@'\nraw Data : '%s'", rawJSON, (char *)[[self responseData] bytes]);
            return [self responseString];
        }
    }
    else {
        NSLog(@"This data doesn't seem to be an UTF8 encoded string: %@", [self responseData]);
        return [self responseString];
    }

    return jsonValue;
}

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