PHP微信开发素材管理,微信开发 ---- 素材管理

女爷i 2023-01-15 11:22 125阅读 0赞

///

///From表单上传一个多媒体文件///

/// 地址

/// 类型名称

/// 文件名称

/// 输入流

/// 编码

///

public static string HttpRequestPost(string url, string typeName, string fileName, Stream fs, string encoding = "UTF-8")

HttpWebRequest request= (HttpWebRequest)WebRequest.Create(url); //建立url

request.Method = "POST";

request.Timeout= 10000;var postStream = new MemoryStream();//建立内存流来进行数据处理

\#region 处理Form表单文件上传

//经过表单上传文件

string boundary = "----" + DateTime.Now.Ticks.ToString("x");//头部

string formdataTemplate = "\\r\\n--" + boundary + "\\r\\nContent-Disposition: form-data; name=\\"\{0\}\\"; filename=\\"\{1\}\\"\\r\\nContent-Type: application/octet-stream\\r\\n\\r\\n";try\{string formdata = string.Format(formdataTemplate, typeName, fileName);var formdataBytes = Encoding.ASCII.GetBytes(postStream.Length == 0 ? formdata.Substring(2, formdata.Length - 2) : formdata);//第一行不须要换行

postStream.Write(formdataBytes, 0, formdataBytes.Length); //填充内存流//写入文件

byte\[\] buffer = new byte\[1024\];int bytesRead = 0;while ((bytesRead=fs.Read(buffer,0,buffer.Length))!=0) //填充输入流

postStream.Write(buffer,0, bytesRead);

\}catch(Exception ex)

\{throwex;

\}//结尾

var footer = Encoding.ASCII.GetBytes("\\r\\n--" + boundary + "--\\r\\n");

postStream.Write(footer,0, footer.Length);

request.ContentType= string.Format("multipart/form-data; boundary=\{0\}", boundary);\#endregionrequest.ContentLength= postStream != null ? postStream.Length : 0; //设置类容长度

if (postStream!=null)

postStream.Position= 0;//直接写入流

Stream requestStream =request.GetRequestStream();byte\[\] buffer = new byte\[1024\];int bytesRead = 0;while ((bytesRead = postStream.Read(buffer, 0, buffer.Length)) != 0)

requestStream.Write(buffer,0, bytesRead);

postStream.Close();//关闭文件访问

HttpWebResponse response=(HttpWebResponse)request.GetResponse();using (Stream responseStream=response.GetResponseStream())

\{using (StreamReader myStreamReader = newStreamReader(responseStream, Encoding.GetEncoding(encoding)))

\{string retString =myStreamReader.ReadToEnd();return retString; //返回结果