private const string BaiduAccessKeyId = "你的AK";

        private const string BaiduSecretAccessKey = "你的SAK";

        private const string BaiduBucketName = "你的BucketName";//后台去创建

        private const string RootPath = "Demo";//文件存储路径(如果写了，但是后台没有这个文件夹会自动创建)

public JsonResult UploadBd()
        {
            JsonResult rJson = new JsonResult();
//前台获取图片列表插入到dropzone.js插件时，会调用Upload方法，但是没有文件传过来，所以这里会返回空信息会去
            if (Request.Files.Count==0)
            {
                var returnData1 = new { State = false, Msg = "" };
                rJson.Data = returnData1;
                rJson.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                return rJson;
            }
            var file = Request.Files[0];
            //根据上传文件名获取完整名称
            var uploadfileName = file.FileName;
            byte[] uploadFileBytes = new byte[file.ContentLength];
            try
            {
                //读取文件二进制流
                file.InputStream.Read(uploadFileBytes, 0, file.ContentLength);
            }
            catch (Exception ex)
            {
                var returnData1 = new { State = false,Msg=ex.Message };
                // context.Response.Write(ex.Message);
                rJson.Data = returnData1;
                rJson.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                return rJson;

            }
            try
            {
//以上代码都可要可不要。对象存储Bos这里才开始
              
                const string accessKeyId = BaiduAccessKeyId; // 您的Access Key ID
                const string secretAccessKey = BaiduSecretAccessKey; // 您的Secret Access Key
                const string endpoint = "http://bj.bcebos.com";          //传入Bucket所在区域域名,这里所有用户都一样都是使用bj.bcebos.com

                // 初始化一个BosClient
                BceClientConfiguration config = new BceClientConfiguration();
                config.Credentials = new DefaultBceCredentials(accessKeyId, secretAccessKey);
                config.Endpoint = endpoint;
                BosClient client = new BosClient(config);

                //上传文件至百度BOS
                PutObjectResponse presp = client.PutObject(BaiduBucketName, RootPath+"/"+file.FileName, uploadFileBytes);

             //初始化BceDoc的配置信息，有些文档或者网上的Demo使用的域名为：http://doc.bj.bcebos.com，现在这个是不可用的。可用的是：http://doc.bj.baidubce.com，现在只支持这个，且必须是华北，北京区域的
                BceClientConfiguration docConfig = GetBceClientConfig("http://doc.bj.baidubce.com");
                docConfig.Credentials = new DefaultBceCredentials(accessKeyId, secretAccessKey);

               
                DocClient _docClient = new DocClient(docConfig);
                //DOC发布转码
                CreateDocumentFromBosRequest rq = new CreateDocumentFromBosRequest();
                rq.Title = file.FileName;
                rq.Bucket = BaiduBucketName;
                rq.Object = RootPath + "/" + file.FileName;
                CreateDocumentFromBosResponse resp = _docClient.CreateDocumentFromBos(rq);
                //如果docConfig的Endpoint不存在则会报异常404，如果Endpoint使用的不是http://doc.bj.baidubce.com，但是填写的Endpoint存在则会没有DocumentId返回。
                var docid= resp.DocumentId;
                if (docid!=null&&docid!="")
                {
                    var returnData = new { State=true,file = file.FileName, DocId =docid  };

                    rJson.Data = returnData;
                    rJson.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                    return rJson;
                }
                else
                {
                    var returnData = new { State = true, file = "", dataUrl = "" };
                    rJson.Data = returnData;
                    rJson.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                    return rJson;

                }

            }
            catch (Exception ex)
            {
                var returnData1 = new { State = false, Msg = ex.Message };
                // context.Response.Write(ex.Message);
                rJson.Data = returnData1;
                rJson.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
                return rJson;
            }
        }