首页 \ 问答 \ AFNetworking 3.0用于上传图像错误的多部分表单数据(AFNetworking 3.0 Multipart form data for uploading image error)

AFNetworking 3.0用于上传图像错误的多部分表单数据(AFNetworking 3.0 Multipart form data for uploading image error)

 我一直在尝试使用多部分表单数据afnetworking 3.0将图像上传到我的AWS服务器，但显然，我尝试上传的每个图像都在故障块中结束。 用objective-c编写的代码。  
- (NSURLSessionUploadTask *)uploadImageTask:(NSMutableDictionary *)dictionary
{
    NSString *s3BucketUrl = [dictionary objectForKey:@"s3BucketUrl"];

    NSData *imageData = [dictionary objectForKey:@"imageData"];

    NSString *contentType = [dictionary objectForKey:@"contentType"];

    NSString *filename = [dictionary objectForKey:@"filename"];

    NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:s3BucketUrl parameters:dictionary constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

       [formData appendPartWithFileData:imageData name:@"file" fileName:filename mimeType:contentType];
    } error:nil];

    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

    NSURLSessionUploadTask *uploadTask = [[NSURLSessionUploadTask alloc] init];
    uploadTask = [manager
                  uploadTaskWithStreamedRequest:request
                  progress:^(NSProgress * _Nonnull uploadProgress) {
                      // This is not called back on the main queue.
                      // You are responsible for dispatching to the main queue for UI updates
                      dispatch_async(dispatch_get_main_queue(), ^{
                          //Update the progress view

                      });
                  }
                  completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
                      if (!error) {

                          if (self.delegate != nil && [self.delegate respondsToSelector:@selector(onUploadImageTask:)])
                          {
                              [self.delegate onUploadImageTask:nil];
                          }

                      } else {

                          if (self.delegate != nil && [self.delegate respondsToSelector:@selector(onUploadImageTask:)])
                          {
                              [self.delegate onUploadImageTask:error];
                          }
                      }
                  }];

    [uploadTask resume];

    return uploadTask;
}
 
 我得到的错误是  
 
  错误域= com.alamofire.error.serialization.response代码= -1011“请求失败：错误请求（400）”UserInfo = {NSUnderlyingError = 0x170248940 {Error Domain = com.alamofire.error.serialization.response Code = -1016“请求失败：不可接受的内容类型：application / xml“UserInfo = {com.alamofire.serialization.response.error.response = {URL： https：//....s3.amazonaws.com/ } {status code：400 ，headers {Connection = close; “Content-Type”=“application / xml”; Date =“Tue，2016年12月20日01:53:47 GMT”; Server = AmazonS3; “转移编码”=身份; “x-amz-id-2”=“.....”; “x-amz-request-id”= ....; }，  
 
 我尝试更改响应序列化程序的内容类型但仍然失败。 

I've been trying to upload an image to my AWS server using multipart form data afnetworking 3.0 but apparently, every image I tried to upload ended up in the failure block. The codes in written in objective-c.  
- (NSURLSessionUploadTask *)uploadImageTask:(NSMutableDictionary *)dictionary
{
    NSString *s3BucketUrl = [dictionary objectForKey:@"s3BucketUrl"];

    NSData *imageData = [dictionary objectForKey:@"imageData"];

    NSString *contentType = [dictionary objectForKey:@"contentType"];

    NSString *filename = [dictionary objectForKey:@"filename"];

    NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:s3BucketUrl parameters:dictionary constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

       [formData appendPartWithFileData:imageData name:@"file" fileName:filename mimeType:contentType];
    } error:nil];

    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

    NSURLSessionUploadTask *uploadTask = [[NSURLSessionUploadTask alloc] init];
    uploadTask = [manager
                  uploadTaskWithStreamedRequest:request
                  progress:^(NSProgress * _Nonnull uploadProgress) {
                      // This is not called back on the main queue.
                      // You are responsible for dispatching to the main queue for UI updates
                      dispatch_async(dispatch_get_main_queue(), ^{
                          //Update the progress view

                      });
                  }
                  completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
                      if (!error) {

                          if (self.delegate != nil && [self.delegate respondsToSelector:@selector(onUploadImageTask:)])
                          {
                              [self.delegate onUploadImageTask:nil];
                          }

                      } else {

                          if (self.delegate != nil && [self.delegate respondsToSelector:@selector(onUploadImageTask:)])
                          {
                              [self.delegate onUploadImageTask:error];
                          }
                      }
                  }];

    [uploadTask resume];

    return uploadTask;
}
 
The error I'm getting is  
 
 Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: bad request (400)" UserInfo={NSUnderlyingError=0x170248940 {Error Domain=com.alamofire.error.serialization.response Code=-1016 "Request failed: unacceptable content-type: application/xml" UserInfo={com.alamofire.serialization.response.error.response= { URL: https://....s3.amazonaws.com/ } { status code: 400, headers { Connection = close; "Content-Type" = "application/xml"; Date = "Tue, 20 Dec 2016 01:53:47 GMT"; Server = AmazonS3; "Transfer-Encoding" = Identity; "x-amz-id-2" = "....."; "x-amz-request-id" = ....; } }, 
 
I tried changing the content-type for the response serializer and still fail.

原文：https://stackoverflow.com/questions/41233839

更新时间：2023-07-15 16:07

最满意答案

 我来自azk核心团队，在这里我们通过简单地添加额外的对系统+ db并添加适当的设置来添加测试环境。  
 当您使用扩展测试系统时，它会更容易：  
systems({
  example: {
    depends: ["postgres"],
    // ...
  },
  example-test: {
    extends: "example",
    depends: ["postgres-test"],
    scalable: { default: 0, limit: 1 },
    http: false,
    wait: false,
    envs: {
      // envs aren't extended by default. Add all required env vars from the original system here
      // ...
    },
  },
  postgres: {
    // ...
  },
  "postgres-test": {
    extends: "postgres",
    scalable: { default: 0, limit: 1 },
    envs: {
      // Once again, add the required env vars from postgres system here
      POSTGRES_USER: "azk",
      POSTGRES_PASS: "azk",
      POSTGRES_DB  : "#{manifest.dir}_test",
    },
  },
});
 
 确保你的database.yml能够处理DATABASE_URL env var（我们强烈建议你使用这个： https ： //gist.github.com/gullitmiranda/62082f2e47c364ef9617 ）  
 最后，要运行测试，只需执行：  
$ azk start postgres-test
$ azk shell example-test -- bundle exec rake test
 
 这应该足够了，但如果您有任何其他问题，请告诉我。 

I'm from the azk core team and here we add a test environment by simply adding an extra pair system+db with proper settings. 
It's even easier when you use extends for the test systems: 
systems({
  example: {
    depends: ["postgres"],
    // ...
  },
  example-test: {
    extends: "example",
    depends: ["postgres-test"],
    scalable: { default: 0, limit: 1 },
    http: false,
    wait: false,
    envs: {
      // envs aren't extended by default. Add all required env vars from the original system here
      // ...
    },
  },
  postgres: {
    // ...
  },
  "postgres-test": {
    extends: "postgres",
    scalable: { default: 0, limit: 1 },
    envs: {
      // Once again, add the required env vars from postgres system here
      POSTGRES_USER: "azk",
      POSTGRES_PASS: "azk",
      POSTGRES_DB  : "#{manifest.dir}_test",
    },
  },
});
 
Make sure your database.yml is able to handle DATABASE_URL env var (we strongly recommend you use this one: https://gist.github.com/gullitmiranda/62082f2e47c364ef9617) 
Finally, to run your tests, simply execute: 
$ azk start postgres-test
$ azk shell example-test -- bundle exec rake test
 
This should be enough, but please let me know if you have any other issue.

AFNetworking 3.0用于上传图像错误的多部分表单数据(AFNetworking 3.0 Multipart form data for uploading image error)

最满意答案

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