Question

我认为这很简单，但我无法弄清楚如何做到这一点。我想使用AFNetworking库将文件上传到使用PUT请求到Web服务。这是我用来测试服务的curl命令

mac:~ user$ curl --verbose -T image.jpeg http://server.org:8001/social/test.jpg
* About to connect() to server.org port 8001 (#0)
*   Trying 123.45.123.123...
* connected
* Connected to server.org (123.45.123.123) port 8001 (#0)
> PUT /social/test.jpg HTTP/1.1
> User-Agent: curl/7.24.0 (x86_64-apple-darwin12.0) libcurl/7.24.0 OpenSSL/0.9.8r zlib/1.2.5
> Host: server.org:8001
> Accept: */*
> Content-Length: 78341
> Expect: 100-continue
> 
< HTTP/1.1 100 CONTINUE
< Server: cx1193719-b
< Content-Type: Text/Html
< Accept-Ranges: bytes
< Content-Length: 0
* We are completely uploaded and fine
< HTTP/1.1 200 OK
< Server: cx1193719-b
< Content-Type: Text/Html
< Accept-Ranges: bytes
< Content-Length: 0
< 
* Connection #0 to host server.org left intact
* Closing connection #0

我已经能够使用POST上传文件并将表格数据上传到其他网络服务，我已经使用了PUT请求（使用AFHTTPClient和putPath），但我仍然不明白如何进行简单的文件上传。

感谢您的帮助！

Answer 1

我正在使用AFNetworking 2.0并且想知道同样的事情。这就是我最终的结果：

// manager needs to be init'd with a valid baseURL
NSURL *baseURL = [AfarHTTPSessionManager sharedManager].baseURL;
AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] initWithBaseURL:baseURL];

NSData *imageData = UIImageJPEGRepresentation(draftHighlight.largeImage, 1);

// need to pass the full URLString instead of just a path like when using 'PUT' or 'POST' convenience methods
NSString *URLString = [NSString stringWithFormat:@"%@%@", baseURL, _the_rest_of_your_path];
NSMutableURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:URLString parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    [formData appendPartWithFileData:imageData name:kCreateHighlightAPIKeyImage fileName:@"highlight_image.jpg" mimeType:@"image/jpeg"];
}];

// 'PUT' and 'POST' convenience methods auto-run, but HTTPRequestOperationWithRequest just
// sets up the request. you're responsible for firing it.
AFHTTPRequestOperation *requestOperation = [manager HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
    // success
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    // failure
}];

// fire the request
[requestOperation start];

Answer 2

这是AFNetworking常见问题解答的一部分。查看https://github.com/AFNetworking/AFNetworking/wiki/AFNetworking-FAQ。

此外，如果您使用AFHTTPClient的子类，您可能希望使用类似于以下内容的方式扩展它：

- (void)putPath:(NSString *)path
     parameters:(NSDictionary *)parameters
           data:(NSData*)data
        success:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success
        failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure;

如本回答所示：https://stackoverflow.com/a/9014768/634940。

通过实施并将您的AFHTTPClient子类'基本网址设置为http://server.org，您可以继续致电：

NSData *imageData = [NSData dataWithContentsOfFile:pathToYourJPEGFile];
[client putPath:@"social/test.jpg"
     parameters:nil
           data:imageData
        success:yourSuccessBlock
        failure:yourFailureBlock];

Answer 3

djibouti33的答案在我看来相当不错。但有一点需要注意的是，答案中的multipartFormRequest方法已被弃用。 AFNetworking现在建议您使用：

- (NSMutableURLRequest *)multipartFormRequestWithMethod:(NSString *)method
                                              URLString:(NSString *)URLString
                                             parameters:(NSDictionary *)parameters
                              constructingBodyWithBlock:(void (^)(id <AFMultipartFormData> formData))block
                                                  error:(NSError *__autoreleasing *)error

这里需要注意的是，您需要通过执行以下操作来传递错误：

NSError *requestError = nil;
NSMutableURLRequest *request = [manager.requestSerializer multipartFormRequestWithMethod:@"PUT" URLString:path parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    [formData appendPartWithFileData:photoData name:@"file" fileName:@"image" mimeType:@"image/png"];
} error:&requestError];

使用AFNetworking上传简单的“PUT”文件

3 个答案: