IOS使用soap。

- (IBAction)DoSearch:(id)sender {

NSString *soapMsg=@"<?xml version=\"1.0\" encoding=\"utf-8\"?>"
"<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
"xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">"
"<soap12:Body><getMobileCodeInfo xmlns=\"http://WebXml.com.cn/\"><mobileCode>123456789</mobileCode>"
"<userID></userID></getMobileCodeInfo></soap12:Body></soap12:Envelope>";

NSURL *url=[NSURL URLWithString:@"http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx"];

NSMutableURLRequest *req=[NSMutableURLRequest requestWithURL:url];

NSString *soapMsg_Length=[NSString stringWithFormat:@"%d",soapMsg.length];

[req addValue:@"application/soap+xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[req addValue:soapMsg_Length forHTTPHeaderField:@"Content-Length"];

[req setHTTPMethod:@"POST"];

[req setHTTPBody:[soapMsg dataUsingEncoding:NSUTF8StringEncoding]];

self.conn=[[NSURLConnection alloc]initWithRequest:req delegate:self];

if(self.conn)
{
self.webData=[NSMutableData data];
}

}

//报错的信息
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error;
{
self.conn=nil;
//self.webData=nil;
}

//开始获取
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
[self.webData  setLength:0 ];
NSLog(@"开始了");
}

//接收部分追回
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
[self.webData appendData:data];
NSLog([[NSString alloc]initWithBytes:data.bytes length:data.length encoding:NSUTF8StringEncoding]);
}

//完成后打出
- (void)connectionDidFinishLoading:(NSURLConnection *)connection{
NSString *thexml=[[NSString alloc]initWithBytes:[self.webData mutableBytes] length:[self.webData length] encoding:NSUTF8StringEncoding];
NSLog(thexml);
}