将图片上传到 picasa 网络 [英] Uploading picture to picasa web
本文介绍了将图片上传到 picasa 网络的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试使用 API 将新照片上传到 picasa.代码不起作用我收到以下错误:
I m trying to upload a new photo to picasa using the API. code not working I am getting the following error:
Exception Details: System.Net.WebException: The remote server returned an error: (400) Bad Request.
我的代码:
string imgPath = "C:\foo.png";
StreamReader reader = new StreamReader(imgPath);
string imgBin = reader.ReadToEnd();
reader.Close();
string id=""//picasa ID
string album = "";//album name
string url = String.Format("http://www.picasaweb.google.com/data/feed/api/user/{0}/album/{1}",id, album);
string auth = "";
Byte[] send = Encoding.UTF8.GetBytes(imgBin);
int length = send.Length;
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
req.Method = "POST";
req.ContentType = "image/png";
req.ContentLength = length;
req.Headers.Add("Authorization", "GoogleLogin auth=" + auth);
req.Headers.Add("Slug", "test");
Stream stream = req.GetRequestStream();
stream.Write(send, 0, length);
stream.Close();
WebResponse response = req.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string res = reader.ReadToEnd();
reader.Close();
谢谢
推荐答案
问题很可能与您阅读图像的方式有关.不要将其作为字符串读取,而是尝试将其直接写入请求流中,类似于以下内容:
The problem is most likely with how you are reading the image. Instead of reading it as a string, try writing it directly into the request stream, similar to the following:
using (Stream fileStream = new FileStream(imgPath, FileMode.Open, FileAccess.Read))
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
request.ContentType = "image/png";
request.ContentLength = fileStream.Length;
request.Headers.Add(HttpRequestHeader.Authorization, "GoogleLogin auth=" + auth);
request.Headers.Add("Slug", "test");
using (Stream requestStream = request.GetRequestStream())
{
byte[] buffer = new byte[4096];
int bytesRead = 0;
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
requestStream.Write(buffer, 0, bytesRead);
}
fileStream.Close();
requestStream.Close();
}
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader responseReader = new StreamReader(response.GetResponseStream());
string responseStr = responseReader.ReadToEnd();
}
这篇关于将图片上传到 picasa 网络的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文