1
J'essaye d'analyser un appel de Geonames avec NSXMLParser dans l'iPhone SDK. Je l'ai déjà utilisé mais pour une raison inconnue, je récupère un dictionnaire vide même si je reçois des résultats dans un navigateur Web. Quelqu'un peut-il s'il vous plaît signaler ce que je peux faire mal.NSXMLParser et Geonames
Voici le code que j'utilise et les résultats qui reviennent le coller dans un navigateur.
Merci à l'avance
#pragma mark -
#pragma mark - Parcer Services
-(void)beginLoadingFeed{
//[self startLoadingWithMessage:@"Loading Results...."];
NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(loadFeed) object:nil];
[operationQueue addOperation:operation];
[operation release];
}
- (void)loadFeed{
NSString *path = [NSString stringWithFormat:@"http://ws.geonames.org/postalCodeSearch?placename=%@&long&maxRows=20",self.location];
[Logger log:@"Geonames Query: %@",path];
[self parseXMLFileAtURL:path];
[self performSelectorOnMainThread:@selector(didfinishedLoadingFeed) withObject:nil waitUntilDone:YES];
}
-(void)didfinishedLoadingFeed{
}
- (void)parserDidStartDocument:(NSXMLParser *)parser{
[Logger log:@"found file and started parsing"];
}
//Called when the parser runs into an open tag (<tag>)
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
if ([elementName isEqualToString:@"code"]) {
currentResult = [NSMutableDictionary dictionary];
} else {
currentElement = [elementName copy];
}
}
//This is just to resolve random HTML entities
- (NSData *)parser:(NSXMLParser *)parser resolveExternalEntityName:(NSString *)entityName systemID:(NSString *)systemID {
return [entityName dataUsingEncoding:NSASCIIStringEncoding];
}
- (void)parseXMLFileAtURL:(NSString *)URL{
self.results = [[[NSMutableArray alloc] init] autorelease];
NSURL *xmlURL = [NSURL URLWithString:URL];
NSXMLParser *parser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL];
[parser setDelegate:self];
[parser parse];
[parser autorelease];
}
- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError {
NSString * errorString = [NSString stringWithFormat:@"Unable to connect to web site (Error code %i)", [parseError code]];
[Logger log:@"error parsing : %@", errorString];
[self stopLoadingView];
[self showMessage:@"Error loading content" withTitle:@"Error Loading"];
}
/*** Called when the parser runs into a close tag (</tag>). If it is the Result tag that is closing, we should add the currentResult to the array, and then forget about it ***/
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if ([elementName isEqualToString:@"code"]) {
[self.results addObject:currentResult];
currentResult = nil;
}
}
- (void)parserDidEndDocument:(NSXMLParser *)parser {
[Logger log:@"all done!"];
[Logger log:@"results array has %d items", [self.results count]];
[Logger log:@"Results:%@",results];
[theTableView reloadData];
[self stopLoadingView];
}
Ci-dessous le résultat qui revient dans un navigateur en utilisant le même appel ci-dessus lorsque vous effectuez la recherche pour le terme « boston »:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<geonames>
<totalResultsCount>2808</totalResultsCount>
<code>
<postalcode>02101</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.370567</lat>
<lng>-71.026964</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02108</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.357603</lat>
<lng>-71.068432</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02109</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.360027</lat>
<lng>-71.054495</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02110</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.357636</lat>
<lng>-71.051417</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02111</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.350348</lat>
<lng>-71.0629</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02114</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.361111</lat>
<lng>-71.06823</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02115</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.342706</lat>
<lng>-71.092215</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02116</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.349201</lat>
<lng>-71.076798</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02118</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.336162</lat>
<lng>-71.072854</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02128</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.364197</lat>
<lng>-71.025694</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02199</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.347873</lat>
<lng>-71.082543</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02210</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.348921</lat>
<lng>-71.046511</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02215</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.347088</lat>
<lng>-71.102689</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>22713</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>38.538241</lat>
<lng>-78.142285</lng>
<adminCode1>VA</adminCode1>
<adminName1>Virginia</adminName1>
<adminCode2>047</adminCode2>
<adminName2>Culpeper</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>24592</postalcode>
<name>South Boston</name>
<countryCode>US</countryCode>
<lat>36.696335</lat>
<lng>-78.918829</lng>
<adminCode1>VA</adminCode1>
<adminName1>Virginia</adminName1>
<adminCode2>083</adminCode2>
<adminName2>Halifax</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02102</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.338947</lat>
<lng>-70.919635</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02103</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.338947</lat>
<lng>-70.919635</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02104</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.338947</lat>
<lng>-70.919635</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02105</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.338947</lat>
<lng>-70.919635</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
<code>
<postalcode>02106</postalcode>
<name>Boston</name>
<countryCode>US</countryCode>
<lat>42.354318</lat>
<lng>-71.073449</lng>
<adminCode1>MA</adminCode1>
<adminName1>Massachusetts</adminName1>
<adminCode2>025</adminCode2>
<adminName2>Suffolk</adminName2>
<adminCode3/>
<adminName3/>
</code>
</geonames>