C# 使用Java从REST服务读取数据

我正在试图弄清楚如何从需要身份验证且运气不佳的REST源读取数据。我使用C#可以很好地工作，如下所示：

HttpWebRequest request = (HttpWebRequest) WebRequest.Create(filename);
request.Accept = "application/xml";
request.ContentType = "application/xml";
request.KeepAlive = true;

// this part is not used until after a request is refused, but we add it anyways
CredentialCache myCache = new CredentialCache();
myCache.Add(new Uri(filename), "Basic", new NetworkCredential(username, password));
request.Credentials = myCache;

// this is how we put the uname/pw in the first request
string cre = String.Format("{0}:{1}", username, password);
byte[] bytes = Encoding.ASCII.GetBytes(cre);
string base64 = Convert.ToBase64String(bytes);
request.Headers.Add("Authorization", "Basic " + base64);

HttpWebResponse response = (HttpWebResponse) request.GetResponse();
return response.GetResponseStream();

但对于Java，以下内容不起作用：

URL url = new URL(dsInfo.getFilename());
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", "application/xml");
conn.setRequestProperty("Content-Type", "application/xml");
BASE64Encoder encoder = new BASE64Encoder();
String encodedCredential = encoder.encode( (dsInfo.getUsername() + ":" + dsInfo.getPassword()).getBytes() );
conn.setRequestProperty("Authorization", "BASIC " + encodedCredential);

conn.connect();

InputStream responseBodyStream = conn.getInputStream();

流正在返回：

Error downloading template

Packet: test_packet
Template: NorthwindXml

Error reading authentication header.

我做错了什么

---

谢谢-dave在您的用户名/密码编码中：

Java使用UTF-8编码，getBytes（）返回与本地主机编码（可能是或不是ASCII）对应的字节。这会给你更多的细节

---

在c#和Java中打印这些编码字符串的值，并检查它们是否匹配。

答案来自注释中的Codo-Basic而不是Basic。

什么是“不工作”？您是否尝试过使用Wireshark查看这两种方法在网络上的区别？哦，对不起。添加了上面的结果。您对服务器是否正确实现RFC 2617有多大把握？例如，它是否知道身份验证方案令牌不区分大小写？请写“Basic”而不是“Basic”，然后重试。