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在注册成为BIMFACE的应用开发者后,要能在浏览器里浏览你的模型或者获取你模型内的BIM数据, 首先需要把你的模型文件上传到BIMFACE。根据不同场景,BIMFACE提供了丰富的文件相关的接口。
文件相关所有接口都需要提供有效的Access token。不支持View token。
方式一:普通文件流上传
请求地址:PUT https://file.bimface.com/upload
说明:使用普通文件流上传,不支持表单方式;文件流需要在request body中传递。
参数:
内容类型(ContentType):application/octet-stream
请求Path:https://file.bimface.com/upload?name=3F.rvt
请求Header:"Authorization: Bearer dc671840-bacc-4dc5-a134-97c1918d664b"。JSON格式。
请求体:需要上传的文件流。
HTTP 响应示例:
{
"code" : "success",
"data" : {
"createTime" : "2017-11-09 13:25:03",
"etag" : "19349858cjs98ericu989",
"fileId" : 1216113551663296,
"length" : 39044,
"name" : "-1F.rvt",
"status" : "success",
"suffix" : "rvt"
},
"message" : ""
}
C#实现方法:
1 /// <summary>
2 /// 普通文件流上传【不推荐使用该方式。推荐使用文件直传 UploadFileByPolicy()方法】
3 /// </summary>
4 /// <param name="accessToken">令牌</param>
5 /// <param name="fileName">【必填】文件的名称(不包含路径)</param>
6 /// <param name="fileStream">文件流</param>
7 /// <param name="sourceId">【可选】调用方的文件源ID,不能重复</param>
8 /// <returns></returns>
9 public virtual FileUploadResponse UploadFileByStream(string accessToken, string fileName, Stream fileStream, string sourceId = "")
10 {
11 /* 重要提示:使用普通文件流上传,不支持表单方式; 文件流需要在 request body 中传递 */
12
13 //PUT 方式。例如:https://file.bimface.com/upload?name=3F.rvt
14 string url = string.Format(BimfaceConstants.FILE_HOST + "/upload?name={0}", fileName.UrlEncode(Encoding.UTF8)); //文件的全名,使用URL编码(UTF-8),最多256个字符
15 if (sourceId.IsNotNullAndWhiteSpace())
16 {
17 url = url + "&sourceId=" + sourceId;
18 }
19
20 byte[] fileBytes = fileStream.ToByteArray();
21
22 BimFaceHttpHeaders headers = new BimFaceHttpHeaders();
23 headers.AddOAuth2Header(accessToken);
24
25 try
26 {
27 FileUploadResponse response;
28
29 HttpManager httpManager = new HttpManager(headers);
30 HttpResult httpResult = httpManager.UploadData(url, fileBytes, WebRequestMethods.Http.Put);
31 if (httpResult.Status == HttpResult.STATUS_SUCCESS)
32 {
33 response = httpResult.Text.DeserializeJsonToObject<FileUploadResponse>();
34 }
35 else
36 {
37 response = new FileUploadResponse
38 {
39 Message = httpResult.RefText
40 };
41 }
42
43 return response;
44 }
45 catch (Exception ex)
46 {
47 throw new Exception("普通文件流上时发生异常!", ex);
48 }
49 }
其中引用的 httpManager.UploadData() 方法如下:
1 /// <summary>
2 /// 将数据缓冲区(一般是指文件流或内存流对应的字节数组)上载到由 URI 标识的资源。(包含body数据)
3 /// </summary>
4 /// <param name="url">请求目标URL</param>
5 /// <param name="data">主体数据(字节数据)。如果没有请传递null</param>
6 /// <param name="method">请求的方法。请使用 WebRequestMethods.Http 的枚举值</param>
7 /// <param name="contentType"><see langword="Content-type" /> HTTP 标头的值。请使用 ContentType 类的常量来获取。默认为 application/octet-stream</param>
8 /// <returns>HTTP-POST的响应结果</returns>
9 public HttpResult UploadData(string url, byte[] data, string method = WebRequestMethods.Http.Post, string contentType = HttpContentType.APPLICATION_OCTET_STREAM)
10 {
11 return RequestData(url, data, method, contentType);
12 }
1 /// <summary>
2 /// 将数据缓冲区(一般是指文件流或内存流对应的字节数组)上载到由 URI 标识的资源。(包含body数据)
3 /// </summary>
4 /// <param name="url">请求目标URL</param>
5 /// <param name="data">主体数据(字节数据)。如果没有请传递null</param>
6 /// <param name="method">请求的方法。请使用 WebRequestMethods.Http 的枚举值</param>
7 /// <param name="contentType"><see langword="Content-type" /> HTTP 标头的值。请使用 ContentType 类的常量来获取。默认为 application/octet-stream</param>
8 /// <returns>HTTP-POST的响应结果</returns>
9 private HttpResult RequestData(string url, byte[] data, string method = WebRequestMethods.Http.Post, string contentType = HttpContentType.APPLICATION_OCTET_STREAM)
10 {
11 HttpResult httpResult = new HttpResult();
12 HttpWebRequest httpWebRequest = null;
13
14 try
15 {
16 httpWebRequest = WebRequest.Create(url) as HttpWebRequest;
17 httpWebRequest.Method = method;
18 httpWebRequest.Headers = HeaderCollection;
19 httpWebRequest.CookieContainer = CookieContainer;
20 httpWebRequest.ContentType = contentType;
21 httpWebRequest.UserAgent = _userAgent;
22 httpWebRequest.AllowAutoRedirect = _allowAutoRedirect;
23 httpWebRequest.ServicePoint.Expect100Continue = false;
24
25 if (data != null)
26 {
27 httpWebRequest.AllowWriteStreamBuffering = true;
28 httpWebRequest.ContentLength = data.Length;
29
30 using (Stream requestStream = httpWebRequest.GetRequestStream())
31 {
32 requestStream.Write(data, 0, data.Length);
33 requestStream.Flush();
34 }
35 }
36
37 HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;
38 if (httpWebResponse != null)
39 {
40 GetResponse(ref httpResult, httpWebResponse);
41 httpWebResponse.Close();
42 }
43 }
44 catch (WebException webException)
45 {
46 GetWebExceptionResponse(ref httpResult, webException);
47 }
48 catch (Exception ex)
49 {
50 GetExceptionResponse(ref httpResult, ex, method, contentType);
51 }
52 finally
53 {
54 if (httpWebRequest != null)
55 {
56 httpWebRequest.Abort();
57 }
58 }
59
60 return httpResult;
61 }
方式二:指定外部文件url方式上传
如果需要上传的文件不在本地,且该文件可以通过指定的HTTP URL可以下载,BIMFACE支持直接传一个外部的HTTP文件URL, BIMFACE会去下载该文件,而无须用户先下载,再上传。
请求地址:PUT https://file.bimface.com/upload
说明:BIMFACE支持直接传一个外部的HTTP文件URL, BIMFACE会去下载该文件,而无须用户先下载,再上传。
参数:
内容类型(ContentType):application/json
请求Path:https://file.bimface.com/upload?name=example.rvt&url=http(s)://xxxxxxxxxxx
请求Header:"Authorization: Bearer dc671840-bacc-4dc5-a134-97c1918d664b"。JSON格式。
请求体:需要上传的文件流。
HTTP 响应示例:
{
"code" : "success",
"data" : {
"createTime" : "2017-11-09 13:25:03",
"etag" : "19349858cjs98ericu989",
"fileId" : 1216113551663296,
"length" : 39044,
"name" : "-1F.rvt",
"status" : "success",
"suffix" : "rvt"
},
"message" : ""
}
C#实现方法:
1 /// <summary>
2 /// 指定外部文件url方式上传文件
3 /// </summary>
4 /// <param name="accessToken">令牌</param>
5 /// <param name="fileName">【必填】文件的全名</param>
6 /// <param name="fileUrl">【必填】文件所在url</param>
7 /// <param name="sourceId">【可选】调用方的文件源ID,不能重复</param>
8 /// <param name="etag">【可选】文件etag</param>
9 /// <returns></returns>
10 public virtual FileUploadResponse UploadFileByUrl(string accessToken, string fileName, string fileUrl, string sourceId = "", string etag = "")
11 {
12 /* 如果需要上传的文件不在本地,且该文件可以通过指定的HTTP URL可以下载,BIMFACE支持直接传一个外部的HTTP文件URL, BIMFACE会去下载该文件,而无须用户先下载,再上传。 */
13
14 //PUT 方式。例如:https://file.bimface.com/upload?name=example.rvt&url=http(s)://xxxxxxxxxxx
15 string url = string.Format(BimfaceConstants.FILE_HOST + "/upload?name={0}&url={1}", fileName.UrlEncode(Encoding.UTF8), fileUrl.UriEscapeDataString()); //文件的全名,使用URL编码(UTF-8),最多256个字符
16 if (sourceId.IsNotNullAndWhiteSpace())
17 {
18 url = url + "&sourceId=" + sourceId;
19 }
20 if (etag.IsNotNullAndWhiteSpace())
21 {
22 url = url + "&etag=" + etag;
23 }
24
25 BimFaceHttpHeaders headers = new BimFaceHttpHeaders();
26 headers.AddOAuth2Header(accessToken);
27
28 try
29 {
30 FileUploadResponse response;
31
32 HttpManager httpManager = new HttpManager(headers);
33 HttpResult httpResult = httpManager.Put(url);
34 if (httpResult.Status == HttpResult.STATUS_SUCCESS)
35 {
36 response = httpResult.Text.DeserializeJsonToObject<FileUploadResponse>();
37 }
38 else
39 {
40 response = new FileUploadResponse
41 {
42 Message = httpResult.RefText
43 };
44 }
45
46 return response;
47 }
48 catch (Exception ex)
49 {
50 throw new Exception("指定外部文件url方式上传文件发生异常!", ex);
51 }
52 }
其中引用的 httpManager.Put() 方法如下:
1 /// <summary>
2 /// HTTP-PUT方法,(不包含body数据)。
3 /// 发送 HTTP 请求并返回来自 Internet 资源的响应(HTML代码)
4 /// </summary>
5 /// <param name="url">请求目标URL</param>
6 /// <returns>HTTP-POST的响应结果</returns>
7 public HttpResult Put(string url)
8 {
9 return RequestString(url, null, WebRequestMethods.Http.Put, null);
10 }
1 /// <summary>
2 /// HTTP请求(包含文本的body数据)
3 /// </summary>
4 /// <param name="url">请求目标URL</param>
5 /// <param name="data">主体数据(普通文本或者JSON文本)。如果参数中有中文,请使用合适的编码方式进行编码,例如:gb2312或者utf-8</param>
6 /// <param name="method">请求的方法。请使用 WebRequestMethods.Http 的枚举值</param>
7 /// <param name="contentType"><see langword="Content-type" /> HTTP 标头的值。请使用 ContentType 类的常量来获取</param>
8 /// <returns></returns>
9 private HttpResult RequestString(string url, string data, string method, string contentType)
10 {
11 HttpResult httpResult = new HttpResult();
12 HttpWebRequest httpWebRequest = null;
13
14 try
15 {
16 httpWebRequest = WebRequest.Create(url) as HttpWebRequest;
17 httpWebRequest.Method = method;
18 httpWebRequest.Headers = HeaderCollection;
19 httpWebRequest.CookieContainer = CookieContainer;
20 if (!string.IsNullOrWhiteSpace(contentType))
21 {
22 httpWebRequest.ContentType = contentType;// 此属性的值存储在WebHeaderCollection中。如果设置了WebHeaderCollection,则属性值将丢失。所以放置在Headers 属性之后设置
23 }
24 httpWebRequest.UserAgent = _userAgent;
25 httpWebRequest.AllowAutoRedirect = _allowAutoRedirect;
26 httpWebRequest.ServicePoint.Expect100Continue = false;
27
28 if (data != null)
29 {
30 httpWebRequest.AllowWriteStreamBuffering = true;
31 using (Stream requestStream = httpWebRequest.GetRequestStream())
32 {
33 requestStream.Write(EncodingType.GetBytes(data), 0, data.Length);//将请求参数写入请求流中
34 requestStream.Flush();
35 }
36 }
37
38 HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;
39 if (httpWebResponse != null)
40 {
41 GetResponse(ref httpResult, httpWebResponse);
42 httpWebResponse.Close();
43 }
44 }
45 catch (WebException webException)
46 {
47 GetWebExceptionResponse(ref httpResult, webException);
48 }
49 catch (Exception ex)
50 {
51 GetExceptionResponse(ref httpResult, ex, method, contentType);
52 }
53 finally
54 {
55 if (httpWebRequest != null)
56 {
57 httpWebRequest.Abort();
58 }
59 }
60
61 return httpResult;
62 }
方式三:文件直传
参考《C#开发BIMFACE系列5 服务端API之文件直传》。
系列目录 【已更新最新开发文章,点击查看详细】