标签：des style blog http 使用 os io 文件
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1. 上传百度云盘功能，由于百度开发者中还没有开放对.net
操作的SDK，所以我们现在只能使用原生的REST API
我们的做法就是如何用C# 语言调用 调用curl 命令。
2. curl是利用URL语法在命令行方式下工作的开源文件传输工具。它被广泛应用在Unix、多种Linux发行版中，并且有DOS和Win32、Win64下的移植版本.
要操作curl 我们需要引入LibCurlNet.dll
3.百度上传我们需要有百度账号，而且需要申请开发者功能进入主页后会有
AccessKey,Secrectkey 这两个Key非常重要
4. 传入参数获取加密url，下面一部分代码是把文件写入服务器Temp下的一个临时文件。
public static string PUT(string sobject, HttpPostedFileBase file)
{
string content = Flag + "\n"
+ "Method=PUT\n"
+ "Bucket=" + Bucket + "\n"
+ "Object=" + sobject + "\n";
//+ "Time=" + "\n"
//+ "Ip=" + "\n"
//+ "Size=" + "\n";
string signture = Flag + ":" + AccessKey + ":" + HttpUtility.UrlEncode(MyHmac.hmacSha1(content, SecrectKey));
string url = "http://bcs.duapp.com/" + Bucket + "/" + HttpUtility.UrlEncode(sobject) + "?sign=" + signture;
string path = System.IO.Path.Combine(HttpContext.Current.Server.MapPath("~/Temp"), System.IO.Path.GetFileName(file.FileName));
Stream stream = file.InputStream;
// 把 Stream 转换成 byte[]
byte[] bytes = new byte[stream.Length];
stream.Read(bytes, 0, bytes.Length);
// 设置当前流的位置为流的开始
stream.Seek(0, SeekOrigin.Begin);
FileStream fs = new FileStream(path, FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(bytes);
fs.Close();
FileStream fss = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
try
{
Curl.GlobalInit((int)CURLinitFlag.CURL_GLOBAL_ALL);
Easy easy = new Easy();
Easy.ReadFunction rf = new Easy.ReadFunction(MyHmac.OnReadData);
easy.SetOpt(CURLoption.CURLOPT_READFUNCTION, rf);
easy.SetOpt(CURLoption.CURLOPT_READDATA, fss);
Easy.WriteFunction wf = new Easy.WriteFunction(MyHmac.OnWriteData);
easy.SetOpt(CURLoption.CURLOPT_URL, url);
easy.SetOpt(CURLoption.CURLOPT_UPLOAD, 1);
easy.SetOpt(CURLoption.CURLOPT_INFILESIZE, bytes.LongLength);
easy.SetOpt(CURLoption.CURLOPT_VERBOSE, 1);
easy.SetOpt(CURLoption.CURLOPT_WRITEFUNCTION, wf);
// easy.SetOpt(CURLoption.CURLOPT_WRITEDATA, wf);
Easy.DebugFunction df = new Easy.DebugFunction(MyHmac.OnDebug);
easy.SetOpt(CURLoption.CURLOPT_DEBUGFUNCTION, df);
easy.SetOpt(CURLoption.CURLOPT_VERBOSE, true);
CURLcode code = easy.Perform();
easy.Cleanup();
fss.Close();
Curl.GlobalCleanup();
//删除临时文件
File.Delete(path);
return code.ToString();
}
catch (Exception ex)
{
throw new Exception("Error", ex);
}
}
5. 这个代码就是调用LibCurlNet上传的代码。
6. 这个是Action代码调用百度上传Put后在把这个文件名存储到Session中
public JsonResult UploadFile(HttpPostedFileBase[] fileDataList)
{
List<JsonModel> listInfo = new List<JsonModel>();
if (fileDataList != null)
{
try
{
foreach (HttpPostedFileBase file in fileDataList)
{
string fileExtension = Path.GetExtension(file.FileName); // 文件扩展名
string sobject = "/newFolder/" + Path.GetFileName(file.FileName);
string path = System.IO.Path.Combine(Server.MapPath("~/Temp"), System.IO.Path.GetFileName(file.FileName));
file.SaveAs(path);
string code = HttpClientUtil.doPutMethodToObj<string>(sobject, path);
//string code = Crul.PUT(sobject, file);
if (code == null)
{
viewModel = (MaterialsViewModel)Session["MaterialsViewModel"];
ObjectFiles of = new ObjectFiles();
of.ObjectType = "Material";
if (".bmp,.jpg,.tiff,.gif,.pcx,.tga,.exif,.fpx,.svg,.psd,.cdr,.pcd,.dxf,.ufo,.eps,.ai,.raw".Contains(fileExtension))
{ of.IsPic = true; }
else { of.IsPic = false; }
of.ObjectId = "M001";//Temp 值
of.FieldValue = sobject;
int recNo = -1;
if (viewModel.picturesList.Count > 0)
{
recNo = (viewModel.picturesList.Count + 1) * -1;
}
of.RecNo = recNo;
viewModel.picturesList.Add(of);
Session["MaterialsViewModel"] = viewModel;
listInfo.Add(new JsonModel(true, file.FileName, "Uploaded successfully"));
}
else
{
listInfo.Add(new JsonModel(false, file.FileName, code));
}
}
return Json(listInfo, JsonRequestBehavior.AllowGet);
}
catch (Exception ex)
{
listInfo.Add(new JsonModel(false, "", ex.Message));
return Json(listInfo, JsonRequestBehavior.AllowGet);
}
}
else
{
listInfo.Add(new JsonModel(false, "", "Please select a file upload"));
return Json(listInfo, JsonRequestBehavior.AllowGet);
}
}
6.图4 中Delete 功能现在只能删除数据库中的，而不能删除 百度云盘中的，
删除百度云中的代码还不知道怎么实现，国内的资料太少了。
//public static bool DELETE(string sobject)
//{
// string content = Flag + "\n"
// + "Method=DELETE\n"
// + "Bucket=" + Bucket + "\n"
// + "Object=" + sobject + "\n";
// string signture = Flag + ":" + AccessKey + ":" + HttpUtility.UrlEncode(MyHmac.hmacSha1(content, SecrectKey));
// string url = "http://bcs.duapp.com/" + Bucket + "/" + HttpUtility.UrlEncode(sobject) + "?sign=" + signture;
// return HttpClientUtil.doDeleteMethod(url);
//}
上传百度云第二中方法
1. 上面我们提调用百度云接口需要加入libCurlNet.dll,这里就不需要LibCurlNet.dll
2.百度上传代码
public static string GenerateUri(string method, string sobject)
{
string content = Flag + "\n"
+ "Method=" + method + "\n"
+ "Bucket=" + Bucket + "\n"
+ "Object=" + sobject + "\n";
//+ "Time=" + "\n"
//+ "Ip=" + "\n"
//+ "Size=" + "\n";
string signture = Flag + ":" + AccessKey + ":" + HttpUtility.UrlEncode(MyHmac.hmacSha1(content, SecrectKey));
string uri = "http://bcs.duapp.com/" + Bucket + "/" + HttpUtility.UrlEncode(sobject) + "?sign=" + signture;
return uri;
}
// REST @PUT 方法，带发送文件
public static T doPutMethodToObj<T>(string _Object, string path)
{
string uri = GenerateUri("PUT", _Object);
HttpWebRequest WRequest = (HttpWebRequest)WebRequest.Create(uri);
WRequest.Method = "PUT";
WRequest.ContentType = "application/json;charset=UTF-8";
WRequest.AllowWriteStreamBuffering = false;
// WRequest.Timeout = 10000;
FileStream ReadIn = new FileStream(path, FileMode.Open, FileAccess.Read);
ReadIn.Seek(0, SeekOrigin.Begin); // Move to the start of the file.
WRequest.ContentLength = ReadIn.Length; // Set the content length header to the size of the file.
Byte[] FileData = new Byte[ReadIn.Length]; // Read the file in 2 KB segments.
int DataRead = 0;
Stream tempStream = WRequest.GetRequestStream();
do
{
if (FileData.Length <= 2048)
DataRead = ReadIn.Read(FileData, 0, FileData.Length);
else
DataRead = ReadIn.Read(FileData, 0, 2048);
if (DataRead > 0) //we have data
{
tempStream.Write(FileData, 0, DataRead);
// Array.Clear(FileData, 0, FileData.Length); // Clear the array.
}
} while (DataRead > 0);
HttpWebResponse WResponse = (HttpWebResponse)WRequest.GetResponse();
// Read your response data here.
// Close all streams.
ReadIn.Close();
tempStream.Close();
string json = getResponseString(WResponse);
WResponse.Close();
//删除临时文件
File.Delete(path);
return JsonConvert.DeserializeObject<T>(json);
}
2. 删除百度云盘的的文件
// REST @DELETE 方法
public static string doDeleteMethod(string _Object)
{
string uri = GenerateUri("DELETE", _Object);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = "DELETE";
request.ContentType = "application/json;charset=UTF-8";
request.UserAgent = "curl/7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.3";
request.Accept = "*/*";
request.ContentLength = 0;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8")))
{
return reader.ReadToEnd();
}
}
}
3. 下载百度云盘文件
public static string GET(string sobject)
{
string uri = GenerateUri("GET", sobject);
string _private = "&response-cache-control=private";
return uri + _private;
}标签：des style blog http 使用 os io 文件
原文地址：http://www.cnblogs.com/json_Chen/p/3920434.html
