如何以编程方式从iPhone应用程序将参数发送到Web方法（Web服务）？

Question

I have develop a web service which provides the hospital names of a particular state inside a iphone application. In my application there are different states in table view. When a user select a particular state, I need to send the that particular state name to the web service so that it can display the hospitals belongs to that particular state. How can I achieve this???Please Help me. I stuck here for long time.....thanks in advance....

Answer 1

That all depends on your webservice. If you are using a RESTful webservice you could do something like http://mysite.com?state=NewYork and the webservice can pull the state parameter and find that the user is looking for New York.

If you are using a SOAP webservice you would have to follow the schema defined in the webservice's WSDL.

Edit 1:

In either case: In the iOS app you can determine which table row was selected by making your class implememnt UITableViewDelegate and implementing tableView:didSelectRowAtIndexPath: ( Documentation Here ) At this point you can determine which state you are looking for and add that value to the service call.

Edit 2:

NSMutableURLRequest *request = [[NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.yoursite/webService"]] retain];
NSString *bodyLength =  [NSString stringWithFormat:@"%d", [bodyString length]];
[request addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[request addValue:bodyLength forHTTPHeaderField:@"Content-Length"];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:[bodyString dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *myConnection = [NSURLConnection connectionWithRequest:request delegate:self];
[myConnection start];