问题描述
下面是picasa的文档，我想用这个post上传jpg文件,但自己对POST实在不熟。求赐教，求指导。我直接把google的例子转成字节写入request流了，报错badrequest400PostingaphotowithmetadataTosendmetadataalongwiththephoto,posttothefollowingURL:https://picasaweb.google.com/data/feed/api/user/userID/albumid/albumIDAndusethefollowingformatforthebodyofthePOST:Content-Type:multipart/related;boundary="END_OF_PART"Content-Length:423478347MIME-version:1.0Mediamultipartposting--END_OF_PARTContent-Type:application/atom+xml<entryxmlns='http://www.w3.org/2005/Atom'><title>plz-to-love-realcat.jpg</title><summary>Realcatwantsattentiontoo.</summary><categoryscheme="http://schemas.google.com/g/2005#kind"term="http://schemas.google.com/photos/2007#photo"/></entry>--END_OF_PARTContent-Type:image/jpeg...binaryimagedata...--END_OF_PART-------------------------------------------------------------------------HttpWebRequestrequest=(HttpWebRequest)WebRequest.Create(url);request.Method=Consts.RequestMethods.POST;request.ContentType="multipart/related;boundary=END_OF_PART";using(StreampostDataStream=GetPostStreamMe(filename,filePath)){request.ContentLength=postDataStream.Length;using(StreamrequestStream=request.GetRequestStream()){postDataStream.Position=0;byte[]buffer=newbyte[1024];intbytesRead=0;while((bytesRead=postDataStream.Read(buffer,0,buffer.Length))!=0){requestStream.Write(buffer,0,bytesRead);}}}
privateStreamGetPostStreamMe(stringfilename,stringfilePath){StringBuildersb=newStringBuilder();StreampostDataStream=newMemoryStream();//sb.Append("MIME-version:1.0");//sb.Append(Environment.NewLine);//sb.Append(Environment.NewLine);//sb.Append("Mediamultipartposting");sb.Append(Environment.NewLine);sb.Append("--END_OF_PART");sb.Append(Environment.NewLine);sb.Append("Content-Type:application/atom+xml");sb.Append(Environment.NewLine);sb.Append(Environment.NewLine);sb.Append("<entryxmlns='http://www.w3.org/2005/Atom'>");sb.Append(Environment.NewLine);sb.AppendFormat("<title>{0}</title>",filename);sb.Append(Environment.NewLine);sb.Append("</entry>");sb.Append(Environment.NewLine);sb.Append("--END_OF_PART");sb.Append(Environment.NewLine);sb.Append("Content-Type:image/jpeg");sb.Append(Environment.NewLine);byte[]postBody1=Encoding.UTF8.GetBytes(sb.ToString());postDataStream.Write(postBody1,0,postBody1.Length);//WriteimagefileintostreamFileInfofile=newFileInfo(filePath);using(FileStreamfileStream=file.OpenRead()){byte[]buffer=newbyte[1024];intbytesRead=0;while((bytesRead=fileStream.Read(buffer,0,buffer.Length))!=0){postDataStream.Write(buffer,0,bytesRead);}}//writeendboundarybyte[]postBody2=Encoding.UTF8.GetBytes("--END_OF_PART--");postDataStream.Write(postBody2,0,postBody2.Length);returnpostDataStream;}
解决方案
解决方案二：
数据哪部分你忽略就行了