我正在尝试使用Neo4jClient事务支持的最新预发行版(Neo4jClient 1.1.0-Tx00008)。我尝试过最简单的示例,但每次事务完成时,似乎总是会出现身份验证错误(Neo4j Community2.2.2或2.3)。以下代码:
var graphClient = new GraphClient(new Uri("http://user:password@localhost:7474/db/data"));
graphClient.Connect();
using (var transaction = graphClient.BeginTransaction())
{
graphClient.Cypher.Create("(n:TestNode {Name:'TestNode2'})").ExecuteWithoutResults();
graphClient.Cypher.Create("(n:TestNode {Name:'TestNode3'})").ExecuteWithoutResults();
transaction.Commit();
}当事务提交被调用时,或者如果我排除了transaction.Commit()并允许范围结束,总是会导致此错误:
Received an unexpected HTTP status when executing the request.
The response status was: 401 Unauthorized
The response from Neo4j (which might include useful detail!) was: <html>
<head><title>401 Authorization Required</title></head>
<body bgcolor="white">
<center><h1>401 Authorization Required</h1></center>
<hr><center>nginx</center>
</body>
</html>在不使用任何事务范围的情况下,节点可以很好地创建。我已经查看了源代码中的单元测试,但是在如何调用它方面没有任何区别。
发布于 2015-07-20 17:13:19
您现在必须使用AuthWrapper,我担心它看起来会像:
private class HttpClientAuthWrapper : IHttpClient
{
private readonly AuthenticationHeaderValue _authenticationHeader;
private readonly HttpClient _client;
public HttpClientAuthWrapper(string username, string password)
{
_client = new HttpClient();
if (string.IsNullOrWhiteSpace(username) || string.IsNullOrWhiteSpace(password))
return;
var encoded = Encoding.ASCII.GetBytes(string.Format("{0}:{1}", username, password));
_authenticationHeader = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(encoded));
}
public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request)
{
if(_authenticationHeader != null)
request.Headers.Authorization = _authenticationHeader;
return _client.SendAsync(request);
}
}然后使用如下方式:
var client = new GraphClient(
new Uri("http://localhost.:7474/db/data"),
new HttpClientAuthWrapper("user", "pass#")
);
client.Connect();这将使所有事务使用正确的身份验证头。谢谢你把它提高到吉顿,以及-我们可以调查,使它得到妥善解决!
(由by -代码全部来自:http://geekswithblogs.net/cskardon/archive/2015/03/27/upgrading-your-neo4j-from-xxx-to-2.2.0ndashhaving-authorization-trouble.aspx)
https://stackoverflow.com/questions/31519633
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