做工程之余，将做工程过程较好的代码做个备份，下面的代码段是关于iphone发起http请求的代码，希望能对各位有一些用处。

[request setURL:[NSURL URLWithString:urlString]];[request setHTTPMethod:@"POST"];[request addValue:contentType forHTTPHeaderField: @"Content-Type"];[postBody appendData:[[NSString stringWithFormat:@"<xml>"] dataUsingEncoding:NSUTF8StringEncoding]];[postBody appendData:[[NSString stringWithFormat:@"<yourcode/>"] dataUsingEncoding:NSUTF8StringEncoding]];[postBody appendData:[[NSString stringWithFormat:@"</xml>"] dataUsingEncoding:NSUTF8StringEncoding]];[request setHTTPBody:postBody];NSLog(@"Response Code: %d", [urlResponse statusCode]);if ([urlResponse statusCode] >= 200 && [urlResponse statusCode] < 300) { NSLog(@"Response: %@", result);}