开发者

How do I parse this nested JSON output in Objective C?

I'm trying to parse a nested JSON output like this in Objective C:

{
-Status: {
code: 200
request: "geocode"
name: "1.304044,103.833867"
}
-Placemark: [
-{
-Point: {
-coordinates: [
103.834
1.30396
0
]
}
-AddressDetails: {
-Country: {
CountryName: "Singapore"
-Thoroughfare: {
ThoroughfareName: "Bus stop at Lucky Plaza (09048)"
}
CountryNameCode: "SG"
}
Accuracy: 9
}
id: "p1"
address: "Bus stop at Lucky Plaza (09048)"
}
-{
-Point: {
-coordinates: [
103.834
1.30444
0
]
}
-AddressDetails: {
-Country: {
CountryName: "Singapore"
AddressLine: "Lucky Plaza"
-Thoroughfare: {
-PostalCode: {
PostalCodeNumber: "238863"
}
ThoroughfareName: "304 Orchard Road"
}
CountryNameCode: "SG"
}
Accuracy: 9
}
id: "p2"
address: "Lucky Plaza, 304 Orchard Road, Singapore 238863"
}
-{
-Point: {
-coordinates: [
103.833
1.30376
0
]
}
-AddressDetails: {
-Country: {
CountryName: "Singapore"
AddressLine: "Wisma Atria"
-Thoroughfare: {
-PostalCode: {
PostalCodeNumber: "238877"
}
ThoroughfareName: "435 Orchard Road"
}
CountryNameCode: "SG"
}
Accuracy: 9
}
id: "p3"
address: "Wisma Atria, 435 Orchard Road, Singapore 238877"
}
-{
-Point: {
-coordinates: [
103.835
1.30389
0
]
}
-AddressDetails: {
-Country: {
CountryName: "Singapore"
-Thoroughfare: {
-PostalCode: {
PostalCodeNumber: "238860"
}
ThoroughfareName: "291 Orchard Road"
}
CountryNameCode: "SG"
}
Accuracy: 9
}
id: "p4"
address: "291 Orchard Road, Singapore 238860"
}
-{
-Point: {
-coordinates: [
103.834
1.30491
0
]
}
-AddressDetails: {
-Country: {
CountryName: "Singapore"
AddressLine: "Kimsia Park"
-Thoroughfare: {
-PostalCode: {
PostalCodeNumber: "228968"
}
ThoroughfareName: "1 Jalan Kayu Manis"
}
CountryNameCode: "SG"
}
Accuracy: 9
}
id: "p5"
address: "Kimsia Park, 1 Jalan Kayu Manis, Singapore 228968"
}
]
}

I have some code working, but I'm finding the nested nature of this to be pretty tough to figure out. What I'd like to get out is an array/dictionary which contains the following elements for each return record: coordinates, CountryName, ThoroughfareName, PostalCode and Accuracy.

Here is my test code so far:

- (void)viewDidLoad {
    [super viewDidLoad];

    NSURL *jsonURL = [NSURL URLWithString:@"http://gothere.sg/maps/geo?output=json&ll=1.304044%2C103.833867&client=&sensor=false&callback="];

    NSString *jsonData = [[NSString alloc] initWithContentsOfURL:jsonURL];

    self.jsonArray = [jsonData JSONValue]; 

    NSLog(@"%@", jsonArray);

    [jsonURL release];
    [jsonData release];
}

My code just manages to get the raw JSON output, any thoughts/code to break it down as I've mentioned above.

Thanks!

As requested, some further information.

  1. Using SBJson framework.
  2. NSLog output from above:

    2011-08-30 16:44:32.605 Taxi[53070:207] {
    Placemark =     (
                {
            AddressDetails =             {
                Accuracy = 9;
                Country =                 {
                    CountryName = Singapore;
                    CountryNameCode = SG;
                    Thoroughfare =                     {
                        ThoroughfareName = "Bus stop at Lucky Plaza (09048)";
                    };
                };
            };
            Point =             {
                coordinates =                 (
                    "103.834",
                    "1.30396",
                    0
                );
            };
            address = "Bus stop at Lucky Plaza (09048)";
            id = p1;
        },
                {
            AddressDetails =             {
                Accuracy = 9;
                Country =                 {
                    AddressLine = "Lucky Plaza";
                    CountryName = Singapore;
                    CountryNameCode = SG;
                    Thoroughfare =                     {
                        PostalCode =                         {
                            PostalCodeNumber = 238863;
                        };
                        ThoroughfareName = "304 Orchard Road";
                    };
                };
            };
            Point =             {
               开发者_高级运维 coordinates =                 (
                    "103.834",
                    "1.30444",
                    0
                );
            };
            address = "Lucky Plaza, 304 Orchard Road, Singapore 238863";
            id = p2;
        },
                {
            AddressDetails =             {
                Accuracy = 9;
                Country =                 {
                    AddressLine = "Wisma Atria";
                    CountryName = Singapore;
                    CountryNameCode = SG;
                    Thoroughfare =                     {
                        PostalCode =                         {
                            PostalCodeNumber = 238877;
                        };
                        ThoroughfareName = "435 Orchard Road";
                    };
                };
            };
            Point =             {
                coordinates =                 (
                    "103.833",
                    "1.30376",
                    0
                );
            };
            address = "Wisma Atria, 435 Orchard Road, Singapore 238877";
            id = p3;
        },
                {
            AddressDetails =             {
                Accuracy = 9;
                Country =                 {
                    CountryName = Singapore;
                    CountryNameCode = SG;
                    Thoroughfare =                     {
                        PostalCode =                         {
                            PostalCodeNumber = 238860;
                        };
                        ThoroughfareName = "291 Orchard Road";
                    };
                };
            };
            Point =             {
                coordinates =                 (
                    "103.83499999999999",
                    "1.30389",
                    0
                );
            };
            address = "291 Orchard Road, Singapore 238860";
            id = p4;
        },
                {
            AddressDetails =             {
                Accuracy = 9;
                Country =                 {
                    AddressLine = "Kimsia Park";
                    CountryName = Singapore;
                    CountryNameCode = SG;
                    Thoroughfare =                     {
                        PostalCode =                         {
                            PostalCodeNumber = 228968;
                        };
                        ThoroughfareName = "1 Jalan Kayu Manis";
                    };
                };
            };
            Point =             {
                coordinates =                 (
                    "103.834",
                    "1.30491",
                    0
                );
            };
            address = "Kimsia Park, 1 Jalan Kayu Manis, Singapore 228968";
            id = p5;
        }
    );
    Status =     {
        code = 200;
        name = "1.304044,103.833867";
        request = geocode;
    };
    

    }


Try this :

//NSMutableArray *addressDetails = [[NSMutableArray alloc] init];
NSMutableArray *addressDetails = [[jsonArray valueForKey:@"Placemark"] valueForKey:@"AddressDetails"];

  //NSMutableArray *point = [[NSMutableArray alloc] init];
NSMutableArray *point = [[jsonArray valueForKey:@"Placemark"] valueForKey:@"Point"];

NSLog(@"%@", point);
NSLog(@"%@", [point objectAtIndex:0]);

NSLog(@"%@", addressDetails);

Like wise you can get array of "id" and "address" value also.

To get value of "coordinates" of point array, do this

NSLog(@"%@", [[point objectAtIndex:0] valueForKey:@"coordinates"]);

For AddressDetails/Country/CountryName :

NSLog(@"%@", [[[addressDetails objectAtIndex:0] valueForKey:@"Country"] valueForKey:@"CountryName"]);


Your json is invalid, try to test it on http://jsonviewer.stack.hu/ once it becames valid then only you can use it. You must have used the SBJSON framework to parse it.

0

上一篇:

下一篇:

精彩评论

暂无评论...
验证码 换一张
取 消

最新问答

问答排行榜