Question

我正在尝试通过PUT将PDF文件上传到网络服务。我通过多部分表单请求在iOS上实现了这一点。

然而，当我从Android做同样的事情时，该服务立即返回200，并且从未实际获得整个PUT，我无法弄清楚原因。我尝试过多种不同的方式来构建这个请求，所有这些都有相同的结果。

我目前正在使用loopj AsyncHTTPClient库来发出请求，这是我的代码：

    MultipartEntityBuilder builder = MultipartEntityBuilder.create();
    builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

    ByteArrayBody body = new ByteArrayBody(bytes, ContentType.create("application/pdf"), "file.pdf");

    builder.addPart("",body);
    HttpEntity form = builder.build();

    AsyncHttpClient client = new AsyncHttpClient();
    client.setBasicAuth(authUser(), authPass());

    client.put(context, url, form, "application/pdf", new AsyncHttpResponseHandler() {
        @Override
        public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {

            Log.d(TAG,"SUCCESS: " + statusCode + " response: " + responseBody.length);
        }

        @Override
        public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
            Log.e(TAG,"FAIL: " + statusCode + " response: " + responseBody + " ERROR: " + error.getMessage());
        }
    });

作为参考，这是我在iOS上用来做同样请求的代码 - 成功。我正在使用AFNetworking。

    NSString *authStr = [NSString stringWithFormat:@"%@:%@", [self authUser], [self authPass]];
    NSString *authenticationValue = [[authStr dataUsingEncoding:NSUTF8StringEncoding] base64EncodedStringWithOptions:0];

    NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"PUT" URLString:url parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        [formData appendPartWithFileData:data
                                    name:@""
                                fileName:@""
                                mimeType:mimeType];
    } error:nil];

    [request setValue:[NSString stringWithFormat:@"Basic %@", authenticationValue] forHTTPHeaderField:@"Authorization"];


    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
    manager.responseSerializer = [AFJSONResponseSerializer serializer];

    NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithStreamedRequest:request progress:&progress completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {

        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;

        if(progress.cancelled) {
            completion(nil, (int)httpResponse.statusCode, [NSError errorWithDomain:@"Network.uploadFile" code:500 userInfo:@{NSLocalizedDescriptionKey:@"User Cancelled"}]);
        } else {
            if (error) {
                completion(nil, (int)httpResponse.statusCode, error);
            } else {
                NSDictionary *response = responseObject;
                completion(response, (int)httpResponse.statusCode, nil);
            }
        }
    }];



    _currentUploadTask = uploadTask;
    [uploadTask resume];

任何想法都表示赞赏。或者或许指出我可以更好地调试它的方向？感谢。

Answer 1

我通过向多部分实体添加边界并将请求的内容类型更改为

来解决此问题

multipart/form-data; boundary=

这是更新后的工作代码

    MultipartEntityBuilder builder = MultipartEntityBuilder.create();
    builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

    String boundary = "-------------" + System.currentTimeMillis();
    builder.setBoundary(boundary);

    ByteArrayBody body = new ByteArrayBody(bytes, ContentType.create("application/pdf"), "file.pdf");

    builder.addPart("",body);
    HttpEntity form = builder.build();

    AsyncHttpClient client = new AsyncHttpClient();
    client.setBasicAuth(authUser(), authPass());

    String type = "multipart/form-data; boundary="+boundary;

    client.put(context, url, form, type, new AsyncHttpResponseHandler() {
        @Override
        public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {

            Log.d(TAG,"SUCCESS: " + statusCode + " response: " + responseBody.length + " headers: " + headers.toString());
        }

        @Override
        public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
            Log.e(TAG,"FAIL: " + statusCode + " response: " + responseBody + " ERROR: " + error.getMessage());
        }
    });

Web服务没有从android接收多部分PUT

1 个答案: