解析 JSON 字典/数组

Question

如果 JSON 网络服务返回类似这样的内容（房屋详情）

[
    {
        id:4,
        price: 471,
        location: "New York",
        size: 3000
    },
    {
        id:7,
        price: 432,
        location: "London",
        size: 3200
    },
    {
        id:22,
        price: 528,
        location: "Tokyo",
        size: 2000
    }
]

我将如何逐一遍历每个房屋？我正在使用 ASIHTTPRequest 和 JSON 解析器：http://stig.github.com/json-framework/

我想我可以像这样得到字典：

NSString *theResponse = [request responseString];
NSDictionary *dictionary = [theResponse JSONValue];

.. 但我不确定如何遍历每个房子。

Answer 1

{
        id:4,
        price: 471,
        location: "New York",
        size: 3000
    },
    {
        id:7,
        price: 432,
        location: "London",
        size: 3200
    },
    {
        id:22,
        price: 528,
        location: "Tokyo",
        size: 2000
    }

这是字典数组...您可以创建一个 Modal 类您的 House(attributed :id,price,location,size) 并按如下方式对其进行迭代...(考虑到您最终拥有上述内容)..

NSArray *houses = [dictionary objectForKey:<youHaveNotProvideItInYourData>];
NSMutableArray *populatedHouseArray = [[NSMutableArray alloc]init];
for(int i=0;i<[houses count];i++)
{
  NSDictionary *tempDictionary = [houses objectAtIndex:i];
  House *tempHouse = [[House alloc]init];
  if([tempDictionary objectForKey:@"id"]!=nil
  {
    tempHouse.id = [tempDictionary objectForKey:@"id"];
  }
  //and so on for other keys

  [populatedHouseArray addObject:tempHouse]; 
  [tempHouse release];
}

谢谢，