我使用json连接到webservices。
我使用nsurl连接进行连接。我得到了json响应字符串......我需要解析它。
当我尝试解析它时，我收到以下错误：
dyld：未找到符号：_CFXMLNodeGetInfoPtr
这里是相关的源代码：
// Using NSURLConnection
- (void)viewDidLoad
{
[super viewDidLoad];
dataWebService = [[NSMutableData data] retain];
NSMutableURLRequest *request = [[NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://www.googleapis.com/customsearch/v1?key=AIzaSyDzl0Ozijg2C47iYfKgBWWkAbZE_wCJ-2U&cx=017576662512468239146:omuauf_lfve&q=lectures&callback=handleResponse"]]retain];
NSURLConnection *myConnection = [NSURLConnection connectionWithRequest:request delegate:self];
[myConnection start];
[super viewDidLoad];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[dataWebService setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[dataWebService appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *responseString = [[NSString alloc] initWithData:dataWebService encoding:NSUTF8StringEncoding];
NSLog(@"Response: %@",responseString);
[responseString release];
[dataWebService release];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
NSLog(@"Error during connection: %@", [error description]);
}
// Parse JSON
- (void)requestCompleted:(ASIHTTPRequest *)request
{
NSString *responseString = [request responseString];
NSDictionary *dictionary = [responseString JSONValue];
NSDictionary *dictionaryReturn = (NSDictionary*) [dictionary objectForKey:@"request"];
NSString *total = (NSString*) [dictionaryReturn objectForKey:@"totalResults"];
NSLog(@"totalResults: %@", total);
int count = [[dictionaryReturn objectForKey:@"count"] intValue];
NSLog(@"count: %d", count);
}