making a soap request in iphone

I am trying to use a soap web service which only returns me a date(test). But I am not able to connect with the web service. I am only receiving the wsdl from the web service but I am not able to get desired data. Following is my code in objective c

 NSString *soapMessage = @"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n"
"<soap:Body>\n"
"<getDate xmlns:type=\"xsd:string\">\n"
"</getDate>\n"
"</soap:Body>\n"
"</soap:Envelope>\n";
NSURL *url = [NSURL URLWithString:@"http://10.1.6.5/gnosis2/public/wslogin/"];
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]];
[req addValue:@"text/xml; charset=utf-8"  forHTTPHeaderField:@"Content-Type"];
[req addValue:@"http://10.1.6.5/gnosis2/public/wslogin/" forHTTPHeaderField:@"SOAPAction"];
[req addValue:msgLength forHTTPHeaderField:@"Content-Length"];
[req setHTTPMethod:@"POST"];
[req setHTTPBody:[soapMessage dataUsingEncoding:NSUTF8StringEncoding]];

NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:req delegate:self];

I want to use getDate method from the web service. can some one please help me?

Edit

The above code gives me following xml which is same as wsdl viewed in browser:

<?xml version="1.0"?><definitions xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http://10.1.6.5/gnosis2/public/wslogin/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap-enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" name="MyWebService" targetNamespace="http://10.1.6.5/gnosis2/public/wslogin/"><types><xsd:schema targetNamespace="http://10.1.6.5/gnosis2/public/wslogin/"/></types><portType name="MyWebServicePort"><operation name="getDate"><documentation>Get the server date and time</documentation><input message="tns:getDateIn"/><output message="tns:getDateOut"/></operation><operation name="getAgeString"><documentation>Get a nicely formatted string of a person's age</documentation><input message="tns:getAgeStringIn"/><output message="tns:getAgeStringOut"/></operatio开发者_如何学Cn></portType><binding name="MyWebServiceBinding" type="tns:MyWebServicePort"><soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/><operation name="getDate"><soap:operation soapAction="http://10.1.6.5/gnosis2/public/wslogin/#getDate"/><input><soap:body use="encoded" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://10.1.6.5/gnosis2/public/wslogin/"/></input><output><soap:body use="encoded" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://10.1.6.5/gnosis2/public/wslogin/"/></output></operation><operation name="getAgeString"><soap:operation soapAction="http://10.1.6.5/gnosis2/public/wslogin/#getAgeString"/><input><soap:body use="encoded" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://10.1.6.5/gnosis2/public/wslogin/"/></input><output><soap:body use="encoded" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://10.1.6.5/gnosis2/public/wslogin/"/></output></operation></binding><service name="MyWebServiceService"><port name="MyWebServicePort" binding="tns:MyWebServiceBinding"><soap:address location="http://10.1.6.5/gnosis2/public/wslogin/"/></port></service><message name="getDateIn"/><message name="getDateOut"><part name="return" type="xsd:string"/></message><message name="getAgeStringIn"><part name="name" type="xsd:string"/><part name="age" type="xsd:int"/></message><message name="getAgeStringOut"><part name="return" type="xsd:string"/></message></definitions>

Thanks

Pankaj

Please go through following link http://www.icodeblog.com/2008/11/03/iphone-programming-tutorial-intro-to-soap-web-services/

I hope it will help you.

Veery simple way is to generate WSDL classes. Can do that using https://code.google.com/p/wsdl2objc/. Folowing instruction from https://code.google.com/p/wsdl2objc/wiki/UsageInstructions

The following code block helped me in handling web-service using SOAP request.

-(void)getWebServiceContent {

    NSURL *url = [NSURL URLWithString:@"http://url_value_here"];
    NSString *soapBody = @"soap_body_here";

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    [request setHTTPBody:[soapBody dataUsingEncoding:NSUTF8StringEncoding]];
    [request setHTTPMethod:@"POST"]; //GET
    [request addValue:@"Value_to_be_added" forHTTPHeaderField:@"SOAPAction"];
    [request addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];

    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation,id responseObject{

        NSLog(@"Success : Content : %@",[operation responseString]);
    } failure:^(AFHTTPRequestOperation *operation,NSError *error) {

        NSLog(@"Failed");
    })];

    [operation start];
}