iPhone HTTP获得XML并使用GDataXML解析

1. [代码][C/C++]代码     
NSURL *url = [NSURL URLWithString:
  @""];

NSMutableURLRequest* request = [NSMutableURLRequest new];    

[request setURL:url];    
[request setHTTPMethod:@"GET"]; 

NSHTTPURLResponse* response;    
NSData* data = [NSURLConnection sendSynchronousRequest:request    
returningResponse:&response 
error:nil];   

NSString* responseXMLResult = [[NSString alloc] initWithData:data 

encoding: CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000)];    

NSError *error;

GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithXMLString: responseXMLResult

  options:0 error:&error];

if (doc == nil) { return; }

NSLog(@"LOG=%@", [[NSString alloc] initWithData:doc.XMLData encoding:NSUTF8StringEncoding]);

//NSLog(@"%@", doc.rootElement.XMLString);

NSMutableString *resultString = [[NSMutableString alloc] initWithString:@"XML数据内容: \n"];

//NSArray *partyMembers = [doc.rootElement elementsForName:@"Player"];

NSArray *partyMembers = [doc.rootElement nodesForXPath:@"//Party/Player" error:nil];

for (GDataXMLElement *partyMember in partyMembers) {

NSString *_name;
NSString *_level;
NSString *_class;

// Name
//NSArray *names = [partyMember elementsForName:@"Name"];

NSArray *names = [partyMember nodesForXPath:@"Name" error:nil];

if (names.count > 0) {
GDataXMLElement *firstName = (GDataXMLElement *) [names objectAtIndex:0];
_name = firstName.XMLString;
} else continue;

// Level

NSArray *levels = [partyMember elementsForName:@"Level"];

if (levels.count > 0) {
GDataXMLElement *firstLevel = (GDataXMLElement *) [levels objectAtIndex:0];
_level = firstLevel.stringValue;
} else continue;

// Class
NSArray *classes = [partyMember elementsForName:@"Class"];
if (classes.count > 0) {
GDataXMLElement *firstClass = (GDataXMLElement *) [classes objectAtIndex:0];
_class = firstClass.stringValue;

} else continue;

[resultString appendFormat:@"Name=%@",_name ];
[resultString appendFormat:@" Level=%@",_level ];
[resultString appendFormat:@" Class=%@\n",_class ];

}

//textView.text = [[NSString alloc] initWithData:doc.XMLData encoding:NSUTF8StringEncoding];

textView.text = resultString;

    [url release];

[doc release];#SinaEditor_Temp_FontName