iPhone调用Web Service示范

因为有些Web Service参数要求有顺序，所以参数使用了NSArray

?

+ (NSData *) SoapCall:(NSString *)method??PostData:(NSString *)post
{
????NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO];
????NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
????[postData autorelease];
????
????NSString *soapAction = [NSString stringWithFormat:@"%s/%@",SoapPrefix , method??];
????
????NSURL *url=[[NSURL alloc]initWithString:[ [ NSString alloc ] initWithUTF8String: SoapURL ] ];
????NSMutableURLRequest??*request=[[NSMutableURLRequest alloc]init];
????
????[request setTimeoutInterval: 10 ];
????[request setCachePolicy:NSURLRequestReloadIgnoringCacheData];
????[request setURL: url ] ;
????[request setHTTPMethod:@"POST"]; 
????[request setValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];??
????[request setValue:soapAction forHTTPHeaderField:@"SOAPAction"];
????
????[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
????[request setHTTPBody:postData];??
????
????
????NSError *err=nil;
????NSData *data=[NSURLConnection sendSynchronousRequest:request
?????????????????????????????????????? returningResponse:nil 
?????????????????????????????????????????????????? error:&err];
????return data ;
}


+ (NSData *)SoapInvoke:(NSString *)method params:(NSArray *)params
{
????NSMutableString * post = [[ NSMutableString alloc ] init ] ;
????[ post autorelease ];
????
????[ post appendString:
???? @"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" 
???? "<soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\""
???? " xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\""
???? " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">\n"
???? "<soap:Body>\n" ];
????
????[ post appendString:@"<"];
????[ post appendString:method];
????[ post appendString:@">\n"];
????
????for (NSDictionary *dict in params)
????{
????????NSString *value = nil;
????????
????????NSString *key = [[dict keyEnumerator] nextObject];
????????
????????if (key != nil)
????????{
????????????value = [dict valueForKey:key];
????????????
????????????[ post appendString:@"<"];
????????????[ post appendString:key];
????????????[ post appendString:@">"];
????????????if( value != nil )
????????????{
????????????????[ post appendString:value];
????????????}
????????????else
????????????{
????????????????[ post appendString:@""];
????????????}
????????????
????????????[ post appendString:@"</"];
????????????[ post appendString:key];
????????????[ post appendString:@">\n"];
????????}
????}
????
????[ post appendString:@"</"];
????[ post appendString:method];
????[ post appendString:@">\n"];
????
????[ post appendString:
???? @"</soap:Body>\n"
???? "</soap:Envelope>\n"
???? ];
????
????//????NSString *filePath = [[NSBundle mainBundle] pathForResource:@"login" ofType:@"json"];
????//????NSString *test = [NSString stringWithContentsOfFile:filePath];
????NSLog(@"====================request=========================\n%@\n", post);
????
????return [self SoapCall:method PostData:post];
}