如何分析目标C此嵌套JSON输出？(How do I parse this nested JSON

我试图解析嵌套的JSON输出这样的目标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"
}
]
}

我有一些代码的工作，但我发现这个嵌套的性质是相当艰难弄清楚。 我想出去是一个数组/词典其中包含每个返回记录以下内容：坐标，国家或地区名称，ThoroughfareName，POSTALCODE和准确性。

这里是我的测试代码至今：

- (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/代码来打破它，正如我上面提到的。

谢谢！

按照要求，一些进一步的信息。

1. 使用SBJson框架。

2. 从上面的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:

尝试这个 ：

//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);

就像聪明的你可以得到“身份证”和“地址”的价值还数组。

为了获得点阵列的“坐标”的值，这样做

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

对于AddressDetails /国家/国家或地区名称：

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

Answer 2:

您的JSON是无效的，尝试测试它http://jsonviewer.stack.hu/一旦becames有效的，那么只有你可以使用它。 您必须使用SBJSON框架来分析它。

文章来源: How do I parse this nested JSON output in Objective C?