如何从iPhone上传使用HTTP POST的音频文件？

Question

我正尝试将“caf”格式的音频文件从iPhone上传到Web服务器。使用的代码如下所示。问题是，我没有得到任何文件上传，没有输出文件名称在PHP回声！任何帮助将不胜感激。

我使用在iPhone端的代码是：

NSData *fileData=[NSData dataWithContentsOfURL:recordedTmpFile]; 
NSURL *url=[NSURL URLWithString:@"http://somelink.com/upload.php"]; 
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:url]; 
[request setHTTPMethod:@"POST"]; 

NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; 
NSString *contentType = [NSString stringWithFormat:@"audio/x-caf; boundary=%@",boundary]; 
[request setValue:contentType forHTTPHeaderField: @"Content-Type"]; 

NSMutableData *body = [NSMutableData data]; 
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"%@\"\r\n",[recordedTmpFile lastPathComponent]] dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[[NSString stringWithString:@"Content-Type: audio/x-caf\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:fileData]; 
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
[request setHTTPBody:body]; 

NSError *errr=nil; 
NSURLResponse *resp=nil; 
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&resp error:&errr]; 
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; 

而且PHP代码：

echo "start"; 
echo "1".$_FILES['userfile']['name']; 
echo "2".$_FILES['userfile']['type']; 
echo "end"; 

感谢。

- 阿赫桑

编辑＃1：

使用@Gypsa的编辑，我得到一个错误。代码和错误消息如下：

代码：

NSString *urlString = @"http://somelink/upload.php"; 
NSURL *url=[NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; 
ASIFormDataRequest *request=[ASIFormDataRequest requestWithURL:url]; 
NSLog(@"3333"); 
//NSString * 
[request addFile:recordedTmpFile forKey:@"userfile"]; 
[request setRequestMethod:@"POST"]; 
//[request setDelegate:self]; 
NSLog(@"555"); 
[request setTimeOutSeconds:500]; 
[request startSynchronous]; 
NSLog(@"666"); 
NSLog(@"responseStatusCode %i",[request responseStatusCode]); 
NSLog(@"responseString %@",[request responseString]); 

错误消息：

2011-06-01 07:06:10.819 viewer1[16473:207] -[NSURL length]: unrecognized selector sent to instance 0x5644900 
2011-06-01 07:06:10.821 viewer1[16473:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSURL length]: unrecognized selector sent to instance 0x5644900' 
    terminate called after throwing an instance of 'NSException' 

编辑＃2： 看起来我需要做出从NSURL到NSString的音频文件的地址我做了：

NSString urlString=[url absoluteString]; 

但是，现在我没有得到任何resp ONSE从我的PHP page..the响应为空:(

编辑＃3：

错误消息我收到写着：

responseError Error Domain=ASIHTTPRequestErrorDomain Code=6 "No file exists at file://localhost/var/folders/45/45y8AmvjHvyUUl0mCOpmC++++TI/-Tmp-/328620103851.caf" UserInfo=0x534e500 {NSLocalizedDescription=No file exists at file://localhost/var/folders/45/45y8AmvjHvyUUl0mCOpmC++++TI/-Tmp-/328620103851.caf} 

响应状态代码为0

编辑＃4：

解决！看到答案:)

Answer 1

我已经使用此代码进行视频上传，您可以使用它进行音频上传。

NSString *str = [NSString stringWithFormat:@"%@/uploadVideoIphone.php",appUrl]; 
NSURL *url = [NSURL URLWithString:[str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; 
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];  
NSString *filePath = [urlvideo path]; 
[request addFile:filePath forKey:@"uploadfile"];       
[request setRequestMethod:@"POST"]; 
[request setDelegate:self]; 
[request setTimeOutSeconds:500]; 
[request startSynchronous]; 
NSLog(@"responseStatusCode %i",[request responseStatusCode]); 
NSLog(@"responseString %@",[request responseString]);