URL：http://www.12beli.com/App/Index/Category?pid=0  往伺服器發資料返回的是陣列

伺服器返回資料如下：

dict-123--{

    CategoryName = Komputer;

    ID = 4;

    ParentID = 0;

    child = "[{\"ID\":16,\"CategoryName\":\"Laptop\",\"ParentID\":4},{\"ID\":15,\"CategoryName\":\"Desktop\",\"ParentID\":4},{\"ID\":14,\"CategoryName\":\"Printer\",\"ParentID\":4},{\"ID\":24,\"CategoryName\":\"Aksesori Komputer\",\"ParentID\":4},{\"ID\":21,\"CategoryName\":\"Proyektor\",\"ParentID\":4},{\"ID\":204,\"CategoryName\":\"Networking\",\"ParentID\":4},{\"ID\":209,\"CategoryName\":\"Lain-Lain\",\"ParentID\":4},{\"ID\":215,\"CategoryName\":\"Hardware\",\"ParentID\":4}]";

}-

如要取child裡面的內容需要將json字串轉換，否則按正常取法的話會crash

參考：

NSMutableString *jsonDataString=[NSMutableString string];

[jsonDataString setString:[NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"jsonData" ofType:@"txt"] encoding:NSUTF8StringEncoding error:nil]];

NSData *nsData=[jsonDataString dataUsingEncoding:NSUTF8StringEncoding];

parsedArray=[NSJSONSerialization JSONObjectWithData:nsData options:kNilOptions error:nil];

我解析的內容 （ASIHTTPRequest）

- (void)requestFinished:(ASIHTTPRequest *)request

{

   SBJSON * json = [[SBJSONalloc]init];

_dataArray = [jsonobjectWithString:[request responseString]error:nil];

   if ([_dataArray

       for (NSDictionary * dictin _dataArray) {

           NSString *str= [dict objectForKey:@"child"];

NSData *nsData=[strdataUsingEncoding:NSUTF8StringEncoding];

NSArray *childArray=[NSJSONSerializationJSONObjectWithData:nsData options:kNilOptionserror:nil];

           if ( childArray != nil ) {

//                for(int i=0;i<[childArray count];i++)

//                {

//                    [childArray objectAtIndex:i];

//                }

               for (NSDictionary * littleDictin childArray) {

                   NSString * name = [littleDict objectForKey:@"CategoryName"];

                }

            }

        }

    }

}