Question

我在过去6小时内解析我的JSON对象时遇到了一些麻烦。在我的代码中，我使用以下方法从服务器（已将其保存为NSData对象）中剥离了JSON响应：

NSMutableDictionary * responseDataRaw = [NSJSONSerialization JSONObjectWithData:serverResponse options: kNilOptions error:nil];

这是NSMutableDictionary结构，我能够使用NSlog：

{
Content =     (
            {
        0 =             (
                            {
                DatePosted = "September 23, 2014 at 09:10pm";
                ID = 64;
                MemberID = "Ken Ang";
                Message = "I won't be left out :D";
                PostNumber = 1;
                Status = 1;
                Subject = "Hello from US!";
                TopicID =                     {
                    DatePosted = "September 23, 2014";
                    Enabled = "<span class='label' style='background-color:#17A647; color:#fff'>Yes</span>";
                    ForumID = 1;
                    FriendlyURL = "19-";
                    ID = 19;
                    MemberID = 1;
                    Title = "Hello from US!";
                    ViewCount = 288;
                };
                UserID = 1;
                Username = kenang;
            }
        );
        1 =             (
                            {
                DatePosted = "December 17, 2014 at 03:27pm";
                ID = 66;
                MemberID = "Nobody know";
                Message = "Hai from Chech";
                PostNumber = 2;
                Status = 1;
                Subject = "Re: Hello from US!";
                TopicID =                     {
                    DatePosted = "September 23, 2014";
                    Enabled = "<span class='label' style='background-color:#17A647; color:#fff'>Yes</span>";
                    ForumID = 1;
                    FriendlyURL = "19-";
                    ID = 19;
                    MemberID = 1;
                    Title = "Hello from US!";
                    ViewCount = 288;
                };
                UserID = 15;
                Username = admin;
            }
        );
        Forum = "Member Introduction";
        ForumID = 1;
        ForumTopicTitle = "Hello from US!";
    }
);
Count = 2;
}

然后我打算保存＆＃34; 0＆＃34;和＆＃34; 1＆＃34;作为NSDictionary使用以下方法但在运行时被提示错误：

NSArray * responseData = [responseDataRaw objectForKey:@"Content"];

for (id arrayItems in responseData)
{
    NSMutableArray * validKeys = [NSMutableArray array];

    //Enumerate and collect the valid keys: only "0" and "1". So will do a numeric test.
    for (id itemsInside in [arrayItems allKeys])
    {
        NSScanner *scanner = [NSScanner scannerWithString:itemsInside];
        BOOL isNumeric = [scanner scanInteger:NULL] && [scanner isAtEnd];

        if (isNumeric)
        {
            [validKeys addObject:itemsInside];

        }

}


//Using the key to parse the info into our readable NSDictionary
for (NSString * individualKey in validKeys)
{
    NSDictionary * testPost = [arrayItems objectForKey:individualKey];
    ....
    ....
}

我无法在变量testPost中将值保存为NSDictionary。我收到的错误信息是

[__NSCFArray objectForKey:]: unrecognized selector sent to instance 0x170465040

任何人都知道我该怎么办？我需要保存＆＃34; 0＆＃34;和＆＃34; 1＆＃34;作为字典的值我将需要其中的项目以便稍后进入表格单元格。

帮助!!

Answer 1

错误消息告诉您，您已将objectForKey发送到NSArray实例，但您的代码将其视为NSDictionary - 请查看此行发生的行，然后检查该对象。调试器 - 您将看到您做出错误假设的位置。

iOS：NSJSONSerialization：错误的代码或错误的JSON结构？

1 个答案: