Bom primeiro devemos adicionar as variaveis no header da classe que irá conter a conexão.
NSMutableData *webData;
NSMutableString *soapResults;
NSURLConnection *conn;
NSXMLParser *xmlParser;
BOOL elementFound;
Depois na implementação o método que irá chamar o serviço.
NSString *SOAPEnvelope =
[NSString stringWithFormat:
@"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" "<SOAP-ENV:Envelope \n" "xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" \n" "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" \n" "xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\" \n" "SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" \n" "xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\"> \n" "<SOAP-ENV:Body> \n" "<HelloWorld xmlns=\"http://tempuri.org/\">" "</HelloWorld> \n" "</SOAP-ENV:Body> \n" "</SOAP-ENV:Envelope>"];
//Debug
NSLog(@"SOAP ENVELOPE %@", SOAPEnvelope);
NSURL *url = [NSURL URLWithString:@"http://SERVER/WCFServiceName/ServiceName.svc"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
//Header
NSString *SOAPEnvelopeLength = [NSString stringWithFormat:@"%d", [SOAPEnvelope length]];
[request addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[request addValue:@"http://tempuri.org/WCFServiceName/HelloWorld" forHTTPHeaderField:@"SOAPAction"];
[request addValue:SOAPEnvelopeLength forHTTPHeaderField:@"Content-Length"];
//Method & Body
[request setHTTPMethod:@"POST"];
[request setHTTPBody:[SOAPEnvelope dataUsingEncoding:NSUTF8StringEncoding]];
// Connection
conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (conn) {
webData = [[NSMutableData data] retain];
}
E depois adicione os métodos de comunicação com o serviço na mesma classe.
-(void) connection:(NSURLConnection *) connection
didReceiveResponse:(NSURLResponse *) response {
[webData setLength: 0];
}
-(void) connection:(NSURLConnection *) connection
didReceiveData:(NSData *) data {
[webData appendData:data];
}
-(void) connection:(NSURLConnection *) connection
didFailWithError:(NSError *) error {
[webData release];
[connection release];
}
-(void) connectionDidFinishLoading:(NSURLConnection *) connection {
NSLog(@"DONE. Received Bytes: %d", [webData length]);
NSString *theXML = [[NSString alloc]
initWithBytes: [webData mutableBytes]
length:[webData length]
encoding:NSUTF8StringEncoding];
//Debug
NSLog(@"XML %@",theXML);
[theXML release];
if (xmlParser) {
[xmlParser release];
}
xmlParser = [[NSXMLParser alloc] initWithData: webData];
[xmlParser setDelegate:self];
[xmlParser setShouldResolveExternalEntities:YES];
[xmlParser parse];
[connection release];
[webData release];
}
-(void) parser:(NSXMLParser *) parser
didStartElement:(NSString *) elementName
namespaceURI:(NSString *) namespaceURI
qualifiedName:(NSString *) qName
attributes:(NSDictionary *) attributeDict {
//Debug
NSLog(@"%@", elementName);
if( [elementName isEqualToString:@"HelloWorldResult"]) {
if (!soapResults) {
soapResults = [[NSMutableString alloc] init];
}
elementFound = YES;
}
}
-(void)parser:(NSXMLParser *) parser
foundCharacters:(NSString *)string {
if (elementFound) {
[soapResults appendString: string];
}
}
-(void)parser:(NSXMLParser *)parser
didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName {
NSLog(@"SOAP RESULT %@", soapResults);
if ([elementName isEqualToString:@"HelloWorldResult"]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Hello"
message:soapResults
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
[soapResults setString:@""];
elementFound = FALSE;
}
}
