无法解析 obj c 中的 JSON 文件

Question

**我无法解析以下 JSON 文件。它给了the operation couldn’t be completed. (cocoa error 3840.)。

这是我的代码：

- (NSString *)loadJsFromFile:(NSString *)fileName
{
    NSString *path = [[NSBundle mainBundle]pathForResource:fileName ofType:@"txt"];
    NSString *jsScript = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
    return jsScript;
} 

//

 NSString *strInputParam = [self loadJsFromFile:@"samplein"];

 NSData *dataInput = [strInputParam dataUsingEncoding:NSUTF8StringEncoding];

 NSError *error;

 NSObject *input = [NSJSONSerialization JSONObjectWithData:dataInput options:NSJSONReadingMutableContainers error:&error];

 if(error)
 {
    NSLog(@"%@",error.localizedDescription);
 }

我也尝试了以下方法，但没有帮助，请帮我解析这个 JSON。提前谢谢。

NSString *path = [[NSBundle mainBundle]pathForResource:@"samplein" ofType:@"txt"];
NSData *data = [[NSData alloc]initWithContentsOfFile:path];

NSError *error;

NSObject *input = [NSJSONSerialization JSONObjectWithData:dataInput options:NSJSONReadingMutableContainers error:&error];

if(error)
{
    NSLog(@"%@",error.localizedDescription);
}

这是我的 JSON 数据

sampleinputdata = {
        "round": {
            "id" : 1,
            "course" : {
                "id" : 2,
                "slope" : 118,
                "holes" : [ {
                    "id" : 1,
                    "hole_number" : 1,
                    "handicap" : 5,
                    "par" : 4
                } , {
                    "id" : 2,
                    "hole_number" : 2,
                    "handicap" : 7,
                    "par" : 3
                } , {
                    "id" : 3,
                    "hole_number" : 3,
                    "handicap" : 8,
                    "par" : 3
                } , {
                    "id" : 4,
                    "hole_number" : 4,
                    "handicap" : 10,
                    "par" : 4
                }, {
                    "id" : 4,
                    "hole_number" : 5,
                    "handicap" : 10,
                    "par" : 4
                } , {
                    "id" : 5,
                    "hole_number" : 6,
                    "handicap" : 10,
                    "par" : 4
                } , {
                    "id" : 6,
                    "hole_number" : 7,
                    "handicap" : 10,
                    "par" : 4
                } , {
                    "id" : 7,
                    "hole_number" : 8,
                    "handicap" : 9,
                    "par" : 5
                } , {
                    "id" : 8,
                    "hole_number": 9,
                    "handicap" : 11,
                    "par" : 3
                } , {
                    "id" : 9,
                    "hole_number" : 10,
                    "handicap" : 5,
                    "par" : 4
                } , {
                    "id" : 10,
                    "hole_number" : 11,
                    "handicap" : 7,
                    "par" : 3
                } , {
                    "id" : 11,
                    "hole_number" : 12,
                    "handicap" : 8,
                    "par" : 3
                } , {
                    "id" : 12,
                    "hole_number" : 13,
                    "handicap" : 10,
                    "par" : 4
                }, {
                    "id" : 13,
                    "hole_number" : 14,
                    "handicap" : 10,
                    "par" : 4
                } , {
                    "id" : 14,
                    "hole_number" : 15,
                    "handicap" : 10,
                    "par" : 4
                } , {
                    "id" : 15,
                    "hole_number" : 16,
                    "handicap" : 10,
                    "par" : 4
                } , {
                    "id" : 16,
                    "hole_number" : 17,
                    "handicap" : 10,
                    "par" : 4
                } , {
                    "id" : 17,
                    "hole_number" : 18,
                    "handicap" : 9,
                    "par" : 5
                } ]
            },
            "viewer" : [
                {
                    "id" : 1,
                    "name" : "jimmy dean",
                    "handicap" : 10,
                    "n_flag" : true,
                    "g_flag" : true,
                    "group_name" : "groupone",
                    "team_name" : "teamtwo",
                    "scores" : [1,4,1,5,3,2,4,3,2,5,2,4,4,4,4,5,3,2]
                } , {
                    "id" : 2,
                    "name" : "martha s",
                    "handicap" : 12,
                    "n_flag" : true,
                    "g_flag" : true,
                    "group_name" : "groupone",
                    "team_name" : "teamtwo",
                    "scores" : [3,4,6,5,3,2,4,3,2,5,2,1,4,4,4,5,3,2]
                } , {
                    "id" : 3,
                    "name" : "jim bob",
                    "handicap" : 11,
                    "n_flag" : true,
                    "g_flag" : true,
                    "group_name" : "groupone",
                    "team_name" : "teamone",
                    "scores" : [3,4,6,5,3,2,4,3,2,5,2,4,6,4,4,5,3,2]
                } , {
                    "id" : 4,
                    "name" : "big mac",
                    "handicap" : 13,
                    "n_flag" : true,
                    "g_flag" : true,
                    "group_name" : "groupone",
                    "team_name" : "teamone",
                    "scores" : [3,4,6,5,3,2,4,3,2,5,2,4,4,4,4,2,3,2]
                }
            ],
            "bets" : {
                "net_skins_bet": 10.00,
                "gross_skins_bet": 5.00,
                "better_ball_bet": 10.00,
                "nassau_bets" : [
                    {
                        "id" : 1,
                        "min_golfer_id" : 2,
                        "max_golfer_id" : 3,
                        "bet_amount" : 10.00
                    } , {
                        "id" : 2,
                        "min_golfer_id" : 2,
                        "max_golfer_id" : 4,
                        "bet_amount" : 10.00
                    } , {
                        "id" : 3,
                        "min_golfer_id" : 3,
                        "max_golfer_id" : 4,
                        "bet_amount" : 10.00
                    } , {
                        "id" : 4,
                        "min_golfer_id" : 1,
                        "max_golfer_id" : 2,
                        "bet_amount" : 12.00
                    } , {
                        "id" : 5,
                        "min_golfer_id" : 1,
                        "max_golfer_id" : 3,
                        "bet_amount" : 5.00
                    } , {
                        "id" : 6,
                        "min_golfer_id" : 1,
                        "max_golfer_id" : 4,
                        "bet_amount" : 0.00
                    }
                ]
            }
        }
    }

Answer 1

这里有几个明显的问题：

1. 你还没有发布这个方法的代码（```loadJsFromFile:```），所以那里可能有问题我们不能评论。 ```NSString *strInputParam = [self loadJsFromFile:@"samplein.txt"];```

2. 这些选项的目的是什么？ 0|1|2? ```NSObject *input = [NSJSONSerialization JSONObjectWithData:dataInput options:0|1|2 error:&error];```

根据http://jsonlint.com/，您的 JSON 无效：

Parse error on line 1: sampleinputdata={
^ Expecting '{', '['

因此，

sampleinputdata = { ... } 不是有效的 JSON。也许你的意思是"sampleinputdata": { ... }，或者只是{ ... }。

注意：不需要通过字符串传递数据，可以直接从文件加载到 NSData。因此，您应该使用第二种方法。