使用 AFNetworking 的多部分 PUT 请求
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【中文标题】使用 AFNetworking 的多部分 PUT 请求【英文标题】：multipart PUT request using AFNetworking 【发布时间】：2015-05-22 03:40:32 【问题描述】：在 ios 上使用 AFNetworking 对多部分 PUT 请求进行编码的正确方法是什么？ （仍然是 Objective-C，不是 Swift）
我看起来好像 AFNetworking 可以做多部分 POST 但不能做 PUT，有什么解决方案？
谢谢
【问题讨论】：
【参考方案1】：您可以使用 multipartFormRequestWithMethod 创建包含所需数据的多部分 PUT 请求。
例如，在 AFNetworking v3.x 中：
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
NSError *error;
NSURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:@"http://example.com/rest/api/" parameters:@@"foo" : @"bar" constructingBodyWithBlock:^(id<AFMultipartFormData> formData)
NSString *value = @"qux";
NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
[formData appendPartWithFormData:data name:@"baz"];
error:&error];
NSURLSessionDataTask *task = [manager dataTaskWithRequest:request uploadProgress:nil downloadProgress:nil completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error)
if (error)
NSLog(@"%@", error);
return;
// if you want to know what the statusCode was
if ([response isKindOfClass:[NSHTTPURLResponse class]])
NSInteger statusCode = [(NSHTTPURLResponse *)response statusCode];
NSLog(@"statusCode: %ld", statusCode);
NSLog(@"%@", responseObject);
];
[task resume];
如果是AFNetworking 2.x，可以使用AFHTTPRequestOperationManager：
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSError *error;
NSURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:@"http://example.com/rest/api/" parameters:@@"foo" : @"bar" constructingBodyWithBlock:^(id<AFMultipartFormData> formData)
NSString *value = @"qux";
NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
[formData appendPartWithFormData:data name:@"baz"];
error:&error];
AFHTTPRequestOperation *operation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject)
NSLog(@"%@", responseObject);
failure:^(AFHTTPRequestOperation *operation, NSError *error)
NSLog(@"%@", error);
];
[manager.operationQueue addOperation:operation];
已经说明了如何创建这样的请求，值得注意的是服务器可能无法解析它们。值得注意的是，php 解析多部分 POST 请求，但不解析多部分 PUT 请求。
【讨论】：
尝试了上面的代码，但出现以下错误“image”：[“提交的数据不是文件。检查表单上的编码类型。” ] 您使用的是appendPartWithFormData 还是appendPartWithFileData？听起来你想要后者。
@Rob 我已经实现了您的解决方案，但我将字节数据作为 responseObject。你能在这里解决这个问题吗：***.com/questions/40424323/…
@Rob 请问如何从会话任务中获取返回的状态码？
@Llg - 它是response 对象的一部分。所以，检查它是否是一个NSHTTPURLResponse 对象，如果是，抓住它的statusCode。请参阅上面的修改示例。【参考方案2】：
这是适用于我的 Afnetworking 3.0 和 Swift 的代码。我知道它的旧线程，但可能对某人很方便！
let manager: AFHTTPSessionManager = AFHTTPSessionManager()
let URL = "\(baseURL)\(url)"
let request: NSMutableURLRequest = manager.requestSerializer.multipartFormRequestWithMethod("PUT", URLString: URL, parameters: parameters as? [String : AnyObject], constructingBodyWithBlock: (formData: AFMultipartFormData!) -> Void in
formData.appendPartWithFileData(image!, name: "Photo", fileName: "photo.jpg", mimeType: "image/jpeg")
, error: nil)
manager.dataTaskWithRequest(request) (response, responseObject, error) -> Void in
if((error == nil))
print(responseObject)
completionHandler(responseObject as! NSDictionary,nil)
else
print(error)
completionHandler(nil,error)
print(responseObject)
.resume()
【讨论】：
【参考方案3】：你可以创建一个使用AFHTTPRequestSerialization的多部分表单请求方法构造的NSURLRequest
NSString *url = [[NSURL URLWithString:path relativeToURL:manager.baseURL] absoluteString];
id block = ^(id<AFMultipartFormData> formData)
[formData appendPartWithFileData:media
name:@"image"
fileName:@"image"
mimeType:@"image/jpeg"];
;
NSMutableURLRequest *request = [manager.requestSerializer
multipartFormRequestWithMethod:@"PUT"
URLString:url
parameters:nil
constructingBodyWithBlock:block
error:nil];
[manager HTTPRequestOperationWithRequest:request success:successBlock failure:failureBlock];
【讨论】：
【参考方案4】：我想出了一个可以处理任何受支持方法的解决方案。这是 PUT 的解决方案，但您也可以将其替换为 POST。这是我在基础模型类上调用的类别中的一个方法。
- (void)updateWithArrayOfFiles:(NSArray *)arrayOfFiles forKey:(NSString *)key params:(NSDictionary *)params success:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure
id block = [self multipartFormConstructionBlockWithArayOfFiles:arrayOfFiles forKey:key failureBlock:failure];
NSMutableURLRequest *request = [[self manager].requestSerializer
multipartFormRequestWithMethod:@"PUT"
URLString:self.defaultURL
parameters:nil
constructingBodyWithBlock:block
error:nil];
AFHTTPRequestOperation *operation = [[self manager] HTTPRequestOperationWithRequest:request success:success failure:failure];
[operation start];
#pragma mark multipartForm constructionBlock
- (void (^)(id <AFMultipartFormData> formData))multipartFormConstructionBlockWithArayOfFiles:(NSArray *)arrayOfFiles forKey:(NSString *)key failureBlock:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure
id block = ^(id<AFMultipartFormData> formData)
int i = 0;
// form mimeType
for (FileWrapper *fileWrapper in arrayOfFiles)
NSString *mimeType = nil;
switch (fileWrapper.fileType)
case FileTypePhoto:
mimeType = @"image/jpeg";
break;
case FileTypeVideo:
mimeType = @"video/mp4";
break;
default:
break;
// form imageKey
NSString *imageName = key;
if (arrayOfFiles.count > 1)
// add array specificator if more than one file
imageName = [imageName stringByAppendingString: [NSString stringWithFormat:@"[%d]",i++]];
// specify file name if not presented
if (!fileWrapper.fileName)
fileWrapper.fileName = [NSString stringWithFormat:@"image_%d.jpg",i];
NSError *error = nil;
// Make the magic happen
[formData appendPartWithFileURL:[NSURL fileURLWithPath:fileWrapper.filePath]
name:imageName
fileName:fileWrapper.fileName
mimeType:mimeType
error:&error];
if (error)
// Handle Error
[ErrorManager logError:error];
failure(nil, error);
;
return block;
因为它使用 FileWrapper 接口
typedef NS_ENUM(NSInteger, FileType)
FileTypePhoto,
FileTypeVideo,
;
@interface FileWrapper : NSObject
@property (nonatomic, strong) NSString *filePath;
@property (nonatomic, strong) NSString *fileName;
@property (assign, nonatomic) FileType fileType;
@end
【讨论】：
【参考方案5】：对于 RAW 正文：
NSData *data = someData; NSMutableURLRequest *requeust = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[self getURLWith:urlService]]];
[reqeust setHTTPMethod:@"PUT"];
[reqeust setHTTPBody:data];
[reqeust setValue:@"application/raw" forHTTPHeaderField:@"Content-Type"];
NSURLSessionDataTask *task = [manager uploadTaskWithRequest:requeust fromData:nil progress:^(NSProgress * _Nonnull uploadProgress)
completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error)
];
[task resume];
【讨论】：
【参考方案6】：.h
+ (void)PUT:(NSString *)URLString
parameters:(id)parameters
constructingBodyWithBlock:(void (^)(id <AFMultipartFormData> formData))block
progress:(void (^)(NSProgress *uploadProgress)) uploadProgressBlock
success:(void (^)(NSURLResponse *response, id responseObject))success
failure:(void (^)(NSURLResponse * response, NSError *error))failure
error:(NSError *__autoreleasing *)requestError;
.m:
+ (void)PUT:(NSString *)URLString
parameters:(id)parameters
constructingBodyWithBlock:(void (^)(id <AFMultipartFormData> formData))block
progress:(void (^)(NSProgress *uploadProgress)) uploadProgressBlock
success:(void (^)(NSURLResponse * _Nonnull response, id responseObject))success
failure:(void (^)(NSURLResponse * _Nonnull response, NSError *error))failure
error:(NSError *__autoreleasing *)requestError
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer]
multipartFormRequestWithMethod:@"PUT"
URLString:(NSString *)URLString
parameters:(NSDictionary *)parameters
constructingBodyWithBlock:(void (^)(id <AFMultipartFormData> formData))block
error:(NSError *__autoreleasing *)requestError];
AFURLSessionManager *manager = [AFURLSessionManager sharedManager];//[AFURLSessionManager manager]
NSURLSessionUploadTask *uploadTask;
uploadTask = [manager uploadTaskWithStreamedRequest:(NSURLRequest *)request
progress:(void (^)(NSProgress *uploadProgress)) uploadProgressBlock
completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error)
if (error)
failure(response, error);
else
success(response, responseObject);
];
[uploadTask resume];
就像经典的 afnetworking。 把它放到你的网络上 Util :)
【讨论】：
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