Question

我正在尝试在Objective C中解析嵌套的JSON输出：

{
-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"
}
]
}

我有一些代码正在运行，但我发现这个嵌套的特性很难搞清楚。我想要的是一个数组/字典，其中包含每个返回记录的以下元素：coordinates，CountryName，ThoroughfareName，PostalCode和Accuracy。

到目前为止，这是我的测试代码：

- (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];
}

我的代码只是设法得到原始JSON输出，任何想法/代码，如上所述，将其分解。

谢谢！

根据要求，提供了一些进一步的信息。

使用SBJson框架。

上面的NSLog输出：

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 =             {
            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;
};

}

Answer 1

试试这个：

//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);

同样聪明的你也可以获得“id”和“address”值的数组。

要获得点阵列的“坐标”值，请执行此操作

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

对于AddressDetails / Country / CountryName：

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

Answer 2

您的json无效，尝试在http://jsonviewer.stack.hu/上测试一旦它有效，那么只有您可以使用它。您必须使用SBJSON框架来解析它。

如何在Objective C中解析此嵌套JSON输出？

2 个答案: