-3

我曾经有来自服务器的 JSON 数据。它的格式如下：

(
        {
        comment = 1;
        "comment_id" = 41;
        "commenter_id" = 1;
        date = "2013-04-02";
        "first_name" = Alex;
        "plan_id" = 27;
        privacy = 0;
        "solution_part" = 1;
    }
)

我这样解析它：

-(void)loadTitleStrings
{
    theArray = [NSMutableArray array];

    if(!standardUserDefaults)
        standardUserDefaults = [NSUserDefaults standardUserDefaults];

    NSLog(@"Arrayyy: %@", items_array);

    NSString *is_private = [standardUserDefaults objectForKey:@"is_private"];
    NSMutableArray *titleStrings = [NSMutableArray array];
    for(NSDictionary *dictionary in items_array)
    {
        //NOT SURE WHAT THIS IS FOR, SEEMS WEIRD
        NSString *tcid = [dictionary objectForKey:@"comment_id"];
        [theArray addObject:tcid];
        //NSLog(@"Arrayyy: %@", theArray);

        NSString *string;
        if(!is_private || [is_private isEqualToString:@"0"])
        {
            string = [NSString stringWithFormat:@"%@: %@", [dictionary objectForKey:@"first_name"], [dictionary objectForKey:@"comment"]];
        }
        else
        {
            string = [NSString stringWithFormat:@"%@", [dictionary objectForKey:@"comment"]];
        }

        [titleStrings addObject:string];
    }

    cellTitleArray = titleStrings;
}

但是现在服务器发生了变化，数据的格式如下：

{
    data =     (
                {
            comment = 1;
            "comment_id" = 41;
            "commenter_id" = 1;
            date = "2013-04-02";
            "first_name" = Alex;
            "plan_id" = 27;
            privacy = 0;
            "solution_part" = 1;
        },
                {
            comment = 2;
            "comment_id" = 42;
            "commenter_id" = 1;
            date = "2013-04-02";
            "first_name" = Alex;
            "plan_id" = 27;
            privacy = 0;
            "solution_part" = 1;
        }
    );

并且解析它的原始代码崩溃了。我不确定格式差异到底是什么。我将如何更改原始代码以使用新的数据格式？

这是我得到的错误：

2013-04-02 12:31:28.798 Funding[70605:11303] -[__NSCFString objectForKey:]: unrecognized selector sent to instance 0x72b9a10
2013-04-02 12:31:28.800 Funding[70605:11303] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString objectForKey:]: unrecognized selector sent to instance 0x72b9a10'
*** First throw call stack:
(0x1dd5012 0x126ce7e 0x1e604bd 0x1dc4bbc 0x1dc494e 0x14a52 0x1695b 0x17cb731 0x17da014 0x17ca7d5 0x1d7baf5 0x1d7af44 0x1d7ae1b 0x21687e3 0x2168668 0x1b0ffc 0x26dd 0x2605)
libc++abi.dylib: terminate called throwing an exception

谢谢，亚历克斯

4

1 回答 1

2

我就是这样做的。。

-(void)loadTitleStrings
{
    theArray = [NSMutableArray array];

    if(!standardUserDefaults)
        standardUserDefaults = [NSUserDefaults standardUserDefaults];

    NSLog(@"Arrayyy: %@", items_array);

    NSString *is_private = [standardUserDefaults objectForKey:@"is_private"];
    NSMutableArray *titleStrings = [NSMutableArray array];
    for(NSDictionary *dictionary in items_array)
    {
        NSArray *comments = [dictionary objectForKey:@"data"];
        for (NSDictionary * comment in comments)
        {
          NSString *tcid = [comment objectForKey:@"comment_id"];
           [theArray addObject:tcid];
           //NSLog(@"Arrayyy: %@", theArray);

          NSString *string;
          if(!is_private || [is_private isEqualToString:@"0"])
          {
              string = [NSString stringWithFormat:@"%@: %@", [comment objectForKey:@"first_name"], [dictionary objectForKey:@"comment"]];
        }
          else
        {
              string = [NSString stringWithFormat:@"%@", [comment objectForKey:@"comment"]];
        }

           [titleStrings addObject:string];
    }

    cellTitleArray = titleStrings;
}

基本上，我会得到数据字典，然后在数据字典中，逐条评论迭代......

希望这会有所帮助...您可能需要根据您的情况进行更改，因为我不知道完整的故事...

于 2013-04-02T16:38:21.447 回答