多部分/表格.目標數據-C/SWIFT因此，這個HTML代碼以正確的格式為我提交數據。<form action="https://www.example.com/register.php" method="post" enctype="multipart/form-data">
Name: <input type="text" name="userName"><BR />
Email: <input type="text" name="userEmail"><BR />
Password: <input type="text" name="userPassword"><BR />
Avatar: <input type="file" name="avatar"><BR />
<input type="submit"></form>我已經研究了很多關于如何在IOS上發布多部分/表單數據的文章，但是沒有人真正解釋如果有正常的參數和文件上傳的話該怎么做。你能幫我把這個代碼發到Obj-C嗎？謝謝!
3 回答
qq_笑_17
TA貢獻1818條經驗 獲得超7個贊
創建字典 userName,userEmail，和 userPassword參數。 NSDictionary *params = @{@"userName" : @"rob", @"userEmail" : @"[email protected]", @"userPassword" : @"password"};確定圖像的路徑： NSString *path = [[NSBundle mainBundle] pathForResource:@"avatar" ofType:@"png"];
創建請求： NSString *boundary = [self generateBoundaryString];// configure the requestNSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];[request setHTTPMethod:@"POST"];// set content typeNSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];[request setValue:contentType forHTTPHeaderField: @"Content-Type"];// create bodyNSData *httpBody = [self createBodyWithBoundary:boundary parameters:params paths:@[path] fieldName:fieldName];
這是上面用于構建請求主體的方法： - (NSData *)createBodyWithBoundary:(NSString *)boundary parameters:(NSDictionary *)parameters paths:(NSArray *)paths fieldName:(NSString *)fieldName { NSMutableData *httpBody = [NSMutableData data]; // add params (all params are strings) [parameters enumerateKeysAndObjectsUsingBlock:^(NSString *parameterKey, NSString *parameterValue, BOOL *stop) { [httpBody appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [httpBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", parameterKey] dataUsingEncoding:NSUTF8StringEncoding]]; [httpBody appendData:[[NSString stringWithFormat:@"%@\r\n", parameterValue] dataUsingEncoding:NSUTF8StringEncoding]]; }]; // add image data for (NSString *path in paths) { NSString *filename = [path lastPathComponent]; NSData *data = [NSData dataWithContentsOfFile:path]; NSString *mimetype = [self mimeTypeForPath:path]; [httpBody appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [httpBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"%@\"\r\n", fieldName, filename] dataUsingEncoding:NSUTF8StringEncoding]]; [httpBody appendData:[[NSString stringWithFormat:@"Content-Type: %@\r\n\r\n", mimetype] dataUsingEncoding:NSUTF8StringEncoding]]; [httpBody appendData:data]; [httpBody appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; } [httpBody appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; return httpBody;}上面使用的實用程序方法如下： @import MobileCoreServices; // only needed in iOS- (NSString *)mimeTypeForPath:(NSString *)path { // get a mime type for an extension using MobileCoreServices.framework CFStringRef extension = (__bridge CFStringRef)[path pathExtension]; CFStringRef UTI = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, extension, NULL); assert(UTI != NULL); NSString *mimetype = CFBridgingRelease(UTTypeCopyPreferredTagWithClass(UTI, kUTTagClassMIMEType)); assert(mimetype != NULL); CFRelease(UTI); return mimetype;}- (NSString *)generateBoundaryString { return [NSString stringWithFormat:@"Boundary-%@", [[NSUUID UUID] UUIDString]];}然后提交請求。這里有很多選擇。 例如，如果使用 NSURLSession，您可以創建 NSURLSessionUploadTask:NSURLSession *session = [NSURLSession sharedSession]; // use sharedSession or create your ownNSURLSessionTask *task = [session uploadTaskWithRequest:request fromData:httpBody completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) { if (error) { NSLog(@"error = %@", error); return; } NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"result = %@", result);}];[task resume];或者您可以創建一個 NSURLSessionDataTask:request.HTTPBody = httpBody;NSURLSessionTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) { if (error) { NSLog(@"error = %@", error); return; } NSString *result = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"result = %@", result);}];[task resume];以上假設服務器只是返回文本響應。最好是服務器返回JSON，在這種情況下，您可以使用 NSJSONSerialization而不是 NSString方法 initWithData.同樣，我使用的完成塊表示 NSURLSession上面，但是也可以使用更豐富的基于委托的版本。但這似乎超出了這個問題的范圍，所以我將由你們來決定。
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // only needed if the server is not returning JSON; if web service returns JSON, remove this lineNSURLSessionTask *task = [manager POST:urlString parameters:params constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
NSError *error;
if (![formData appendPartWithFileURL:[NSURL fileURLWithPath:path] name:@"avatar" fileName:[path lastPathComponent] mimeType:@"image/png" error:&error]) {
NSLog(@"error appending part: %@", error);
}} progress:nil success:^(NSURLSessionTask *task, id responseObject) {
NSLog(@"responseObject = %@", responseObject);} failure:^(NSURLSessionTask *task, NSError *error) {
NSLog(@"error = %@", error);}];if (!task) {
NSLog(@"Creation of task failed.");}
四季花海
TA貢獻1811條經驗 獲得超5個贊
NSDictionary *param;AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];// 1. Create `AFHTTPRequestSerializer` which will create your request.AFHTTPRequestSerializer *serializer = [AFHTTPRequestSerializer serializer];NSMutableURLRequest *request;NSData *fileData;if ([objDoc.url containsString:@".mp4"]) {
manager.responseSerializer.acceptableContentTypes = [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"application/json"];
[serializer setValue:@"video/mp4" forHTTPHeaderField:@"Content-Type"];
manager.requestSerializer = serializer;}// 2. Create an `NSMutableURLRequest`.NSLog(@"filename =%@",objDoc.url);request= [serializer multipartFormRequestWithMethod:@"POST" URLString:strUrl parameters:param constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
if ([objDoc.url containsString:@".mp4"]) {
[formData appendPartWithFileData:fileData
name:@"File"
fileName:@"video.mp4"
mimeType:@"video/mp4"];
}else{
[formData appendPartWithFileData:fileData
name:@"File"
fileName:@"image.jpeg"
mimeType:@"image/jpeg"];
}} error:nil];// 3. Create and use `AFHTTPRequestOperationManager` to create an `AFHTTPRequestOperation` from the `NSMutableURLRequest` that we just created.self.objeDocument.isUploading = [NSNumber numberWithInt:1];self.operation = [manager HTTPRequestOperationWithRequest:request
success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"Success %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Error!" message:@"The document attached has failed to upload." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
[alert show];
[self.operation cancel];
NSLog(@"Failure %@", error.description);
}];// 4. Set the progress block of the operation.[self.operation setUploadProgressBlock:^(NSUInteger __unused bytesWritten,
long long totalBytesWritten,
long long totalBytesExpectedToWrite) {
NSLog(@"Wrote %lld/%lld", totalBytesWritten, totalBytesExpectedToWrite);
float progress = (float)totalBytesWritten/(float)totalBytesExpectedToWrite;}];// 5. Begin![self.operation start];- 3 回答
- 0 關注
- 531 瀏覽
添加回答
舉報
0/150
提交
取消