AFNetworking 2.0 not parse xml - ios

Question

I want to read a response from a web service.
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer=[AFXMLParserResponseSerializer new];
[manager GET:#"http://openapi.aibang.com/search?app_key=f41c8afccc586de03a99c86097e98ccb&city=%E5%8C%97%E4%BA%AC&q=%E9%A4%90%E9%A6%86" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"%#",responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
But I only got <NSXMLParser: 0x15d85490> from Xcode log. It's not the right xml response.

Answer 1

The output is correct, on iOS there is only the NSXMLParser which is a sax parser and you will need to implement the sax parsing.
The object returned in the block is an instance of NSXMLParser and that is what you see in your log statement, with object you parse the data returned from the HTTP request. The passing it self is handled with the NSXMLParserDelegate.
If you want DOM parsing, you could use the ONO XML parser, it is made by on of the developers of AFNetworking and it a DOM Parser.
And Of course there is nice integration with AFNetworking:AFOnoResponseSerializer

Answer 2

EN: Because the responseObject is a NSXMLParser instance, you can't treat it like string!
You have to implement NSXMLParserDelegate to handler the xml parser progress!
CN: responseObject返回的是NSXMLParser实例，你必须实现NSXMLParserDelegate协议才能处理该xml字符串！骚年! :-)
solution 1: use NSXMLParser to parser
[manager GET:#"http://openapi.aibang.com/search?app_key=f41c8afccc586de03a99c86097e98ccb&city=%E5%8C%97%E4%BA%AC&q=%E9%A4%90%E9%A6%86" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSXMLParser *XMLParser = (NSXMLParser *)responseObject;
[XMLParser setShouldProcessNamespaces:YES];
XMLParser.delegate = self;
[XMLParser parse];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
solution 2: use GDataXML to parser (much easier)
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
[manager GET:#"http://openapi.aibang.com/search?app_key=f41c8afccc586de03a99c86097e98ccb&city=%E5%8C%97%E4%BA%AC&q=%E9%A4%90%E9%A6%86" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
GDataXMLDocument *doc = [[GDataXMLDocument alloc]initWithData:responseObject encoding:0 error:nil];
NSLog(#"%#",doc.rootElement);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];