C# 无法从URL读取XML-远程服务器返回错误：（403）禁止

我试图使用下面的代码使用API URL读取XML（即，我试图避免下载它）

using System;
using System.Xml;

class SampleXMLTest
{
    private void ReadXMLUsingURL_Test1()
    {
        log("#1");
        XmlDocument doc;
        XmlNamespaceManager ns;
        XmlNodeList nodes;

        // Create a new XmlDocument  
        doc = new XmlDocument();

        // Load data  
        doc.Load("http://apps.someurl.int/rest/collection/10000?expand=items&limit=100&offset=1400");

        log("#2");

        // Set up namespace manager for XPath  
        ns = new XmlNamespaceManager(doc.NameTable);
        ns.AddNamespace(string.Empty, http://apps.someurl.int/rest/collection/10000?expand=items&limit=100&offset=1400");
        log("#3");

        // Get forecast with XPath  
        nodes = doc.SelectNodes("/collection/items", ns);  
        log("#4");

        foreach (XmlNode node in nodes)
            log("<handle>:" + node.Attributes("handle").InnerText + vbtab + "<id>:" + node.Attributes("id").InnerText);
    }

    private void ReadXMLUsingURL_Test2()
    {
        log("#1");

        XmlNamespaceManager ns;
        XmlNodeList nodes;

        var m_strFilePath = "http://apps.someurl.int/rest/collection/10000?expand=items&limit=100&offset=1400";
        string xmlStr;

        using (var wc = new WebClient())
        {
            xmlStr = wc.DownloadString(m_strFilePath);
        }

        XmlDocument doc = new XmlDocument();
        doc.LoadXml(xmlStr);

        log("#2");

        // Set up namespace manager for XPath  
        ns = new XmlNamespaceManager(doc.NameTable);
        ns.AddNamespace(string.Empty, "http://apps.someurl.int/rest/collection/10000?expand=items");
        log("#3");

        // Get forecast with XPath  
        nodes = doc.SelectNodes("/collection/items", ns);
        log("#4");

        foreach (XmlNode node in nodes)
            log("<handle>:" + node.Attributes["handle"].InnerText + vbtab + "<id>:" + node.Attributes["id"].InnerText);
    }


    private void log(string msg)
    {
        Console.WriteLine(msg);
    }
}

---

您可以尝试添加以下代码：

doc = new XmlDocument();

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://apps.someurl.int/rest/collection/10000&limit=100&offset=100");
request.UserAgent = "My User Agent";

// Load data  
doc.Load(request.GetResponse().GetResponseStream());

---

问题是由于doc.Load未发送用户代理，导致服务器认为它是一个bot/脚本。

您可以尝试添加以下代码：

doc = new XmlDocument();

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://apps.someurl.int/rest/collection/10000&limit=100&offset=100");
request.UserAgent = "My User Agent";

// Load data  
doc.Load(request.GetResponse().GetResponseStream());

问题是由于doc.Load未发送用户代理，导致服务器认为它是一个bot/脚本