SharePoint 2010 ListData.svc REST API 随机返回错误：“uriString”参数表示来自 HTTPClient 的绝对 URI

Question

我的 SharePoint 2010 REST API 出现间歇性问题。我有一个 .Net Core 控制台应用程序，它对 SharePoint 列表端点进行一系列调用以获取 JSON 响应。我的问题是，在随机时间，API 响应是一个错误页面：

无法创建相对 URI，因为 'uriString' 参数 代表一个绝对URI。http://www.example.com/somefolder/file.svc

我的 HTTPClient 配置有问题吗？是否有可以在 SharePoint 中切换以防止错误或更可靠的配置设置？

var uri = new Uri("http://www.example.com/");
var credential = new NetworkCredential("username", "password", "domain");
var credentialsCache = new CredentialCache { { uri, "NTLM", credential } };
var handler = new HttpClientHandler { Credentials = credentialsCache };
HttpClient Client = new HttpClient(handler);
Client.BaseAddress = new Uri("http://www.example.com/sharepoint/path/ListData.svc/");



// Make the list request
var result = await Client.GetAsync("MySharePointList");

Answer 1

要获取列表项，REST API URI 如下所示。

http://sp2010/_vti_bin/ListData.svc/listname

修改代码如下。

var siteUrl = "http://www.example.com/";
var listName = "MySharePointList";
var uri = new Uri(siteUrl);
var credential = new NetworkCredential("username", "password", "domain");
var credentialsCache = new CredentialCache { { uri, "NTLM", credential } };
var handler = new HttpClientHandler { Credentials = credentialsCache };
HttpClient client = new HttpClient(handler);

client.BaseAddress = new Uri(uri, "/_vti_bin/ListData.svc");       
client.DefaultRequestHeaders.Add("Accept", "application/json;odata=verbose");
client.DefaultRequestHeaders.Add("ContentType", "application/json;odata=verbose");
var requestURL = siteUrl + "/_vti_bin/ListData.svc/" + listName;
// Make the list request
var result = client.GetAsync(requestURL).Result;
var items= result.Content.ReadAsStringAsync();