Question

我目前正在为iOS 7开发，但为了保持兼容性，我确保一切都在iOS 6中运行（当然）。我的multipart / form-data在iOS 7中按预期工作，但在iOS 6中，我的服务器没有接收任何文件（连接已经完成，只有没有文件）。有什么我想念的吗？

// Request
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = @"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue: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=\"uploadedFile\"; filename=\"%@.jpg\"\r\n", deviceId] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

//workaround added here

[request setHTTPBody:body];

//make request
NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[conn start];

编辑：以下代码作为解决方法添加到上面的代码中，但我不认为这是＆＃34;正确的＆＃34;执行此操作的方法。

[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

Answer 1

似乎我不小心删除了一行代码。通过过去的提交，我发现了我的问题。我删除了Content-Type行。

NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];// Here was my problem
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"uploadedFile\"; filename=\"%@.jpg\"\r\n", deviceId] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

multipart / form-data发布0个文件

1 个答案: