iPhone HTTP获得XML并使用GDataXML解析

 

NSURL *url = [NSURL URLWithString:

  @"http://www.raywenderlich.com/downloads/Party.xml"];

 

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];