带xml头的iPhone HTTPS帖子

我必须用一些XML数据发布HTTPS帖子，但我需要在HTTP头中发送XML

利用身体，我会做这样的事情

request = [[NSMutableURLRequest alloc] initWithURL:url cachePolicy:CACHE_POLICY timeoutInterval:TIMEOUT_INTERVAL];
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
    [request setHTTPMethod:@"POST"];
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
    [request setHTTPBody:postData];
connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

<request>
<code1>666</code1 >
<code2>656</code2 >
<code3>767</code3 >
</request >

但这对标题不起作用，有人知道怎么做吗？ XML是这样的

request = [[NSMutableURLRequest alloc] initWithURL:url cachePolicy:CACHE_POLICY timeoutInterval:TIMEOUT_INTERVAL];
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
    [request setHTTPMethod:@"POST"];
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
    [request setHTTPBody:postData];
connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

<request>
<code1>666</code1 >
<code2>656</code2 >
<code3>767</code3 >
</request >

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谢谢。

或者你的意思是在URL中，而不是在随机标题中？在一般情况下，HTTP头不用于将随机数据插入

[request setValue:@"<request><code1>666</code1 ><code2>656</code2 ><code3>767</code3 ></request >" forHTTPHeaderField:@"Your header field name?"];

恕我直言，我现在不想和我一起编译任何Xcode，请原谅打字错误：

NSMutableString *urlString = [NSMutableString string];
[urlString append:@"http://wahtever.com?something=something"];
[urlString append:@"&data="];
[urlString append:[@"<request>...etc</request>" stringByAddingPercentEscapesUsingEncoding:UTF8StringEncoding];

NSURL *url = [NSURL URLwithString:urlString];
request = [[NSMutableURLRequest alloc] initWithURL:url cachePolicy:CACHE_POLICY timeoutInterval:TIMEOUT_INTERVAL];

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你是对的，我试过了，但我的http头是错误的，这就是为什么我认为这不起作用。谢谢