Question

我将数据上传到服务器时出现问题。实际上我的代码看起来像这样：

-(void)publishToServer:(AddDetailsObject *)aCustObj
{

 NSString *urlString = @"http://219.91.165.17:8080/uploadIphone/upload.jsp";
 UIImage *theImage = [UIImage imageWithData:custObj.picture];
 NSData *imageData = UIImageJPEGRepresentation(theImage,0.9);

 //NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
 //NSString *uniquePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:@".caf"];
 printf("\n recordedTmpFile......%s",[recordedTmpFile UTF8String]);
 NSData *audioData = [[NSData alloc] initWithData:[recordedTmpFile dataUsingEncoding:NSASCIIStringEncoding]];
 printf("\n length of data...%d",[data length]);

 NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
 [request setURL:[NSURL URLWithString:urlString]];
 [request setHTTPMethod:@"POST"];

 NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"];
 NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
 [request addValue:contentType forHTTPHeaderField: @"Content-Type"];

 NSMutableData *postBody = [NSMutableData data];
 if([custObj.userName length]>0)
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"name\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:custObj.userName] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
 if([custObj.phoneNumber length]>0)
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"phoneNo\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:custObj.phoneNumber] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

 }
 if([custObj.audioDuration length]>0)
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"duration\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:custObj.audioDuration] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
 if([custObj.imeiNumber length]>0)
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"imei\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:custObj.imeiNumber] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
 if([custObj.latitude length]>0)
{
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"latitude\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:custObj.latitude] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
 if([custObj.longitude length]>0)
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"longitude\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:custObj.longitude] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
 if([custObj.messageTitle length]>0)
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"title\"\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:custObj.messageTitle] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
if([custObj.picture length]>0) //Here Im getting the problem in server returndata I am getting only image but the audio file is not getting if the audio file code is above this picture code then audio file is returned but picture is not returned.
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"picture\"; filename=\"test.png\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:imageData];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
 if([audioData length]>0)
 {
  [postBody appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"uploadedfile\"; filename=\"audio.caf\"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
  [postBody appendData:audioData];
  [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
 }
  [request setHTTPBody:postBody];
 NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
 NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
 printf("\n return string:%s",[returnString UTF8String]);

}

将数据上传到服务器是否有限制？

请大家帮我解决这个问题。

希望我能得到你方的快速回复。提前致谢， Monish。

Answer 1

我猜你没有正确编码文件内容。根据{{3}}，您需要在将文件内容写入请求之前对其进行编码。因为整个请求使用7位字符编码，所以除非你发送ascii文本文件，否则你需要以某种方式编码文件的内容。

您可以在RFC2388第6部分搜索正确的编码并修复您的代码，但我建议您使用一个开源库来为您执行此操作。

以下是使用ASIHttpRequest发送表单的方法：

ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
[request setPostValue:@"Ben" forKey:@"first_name"];
[request setPostValue:@"Copsey" forKey:@"last_name"];
[request setFile:@"/Users/ben/Desktop/ben.jpg" forKey:@"photo"];

检查一下：RFC我成功地将它用于http。他们声称支持多部分/表格数据。

在iphone sdk中上传服务器中的数据时出现问题

1 个答案: