获取多个节点XML

问题描述

Hello CodeProject。

我的XML有点问题。试图创建一个可以显示不同城市温度的​​应用程序。



这是我的XML表格：

Hello CodeProject.
I have a slight problem with XML. Tried to create an application which could show temperatures in different cities.

This is my XML table:

<SERVERS>
 <SERVER name="1">
  <url>http://someeather.com/database.xml</url>
  <search>xml/searchpath/here</search>
 </SERVER>
 <SERVER name="2">
  <url>http://otherweather.com/database.xml</url>
  <search>xml/searchpath/here</search>
 </SERVER>
 <SERVER name="3">
  <url>http://anotherweather.com/database.xml</url>
  <search>xml/searchpath/here</search>
 </SERVER>
</SERVERS>

我必须做的是：

1.根据搜索节点获取每台服务器的温度

2.写出来。



我知道如何获取'responsedoc'并从服务器获取数据，我只是不知道如何分别为这些服务器中的每一个获取响应。



我的代码如下所示：

What I must do, is:
1. Get the temperature from each server, based on the search node
2. write it out.

I know how to get the 'responsedoc' and get the data from the server, I just don't know how to get the responsedoc for each one of these servers separately.

My code looks like this:

XmlNodeList urls = serverDoc.SelectNodes("//servers/server");
string id1 = "1;
string id2 = "2";
string id3 = "3";
foreach(XmlNode node in urls)
{
    string server1 = node.Attributes["name"].InnerText; //Get the attribute name
    //Check if attribute value matches the 'id' provided before foreach.
    if (server1 == name1)
    {
        //Create new node list, so we can get the server url.
        XmlNodeList urls2 = serverDoc.SelectNodes("//servers/server");
        foreach (XmlNode node2 in urls2)
        {
            var serverPath = temp.InnerText;                                //Get the serverpath (the <search> node in .xml)
            WebRequest request = WebRequest.Create(node2["url"].InnerText); //Get the nodes with the name <url>.
            var response = request.GetResponse();                           //Get a response from the server, based on the request node url, that matched the 'name' attribute with the 'id' before this code.
            Stream stream = response.GetResponseStream();                   //Create new stream from the external server for reading
            XmlDocument responseDoc = new XmlDocument();                    //Create new instance for a new xml document
            responseDoc.Load(stream);                                       //Create new xml document from the stream
            var tempOut = responseDoc.SelectSingleNode(serverPath);         //From this new document get the temperature based on the searchpath provided befre this code.
            string temperature = tempOut.Attributes["value"].Value;         //Now get the value from the attribute with the name 'value' from that new xml document, to set the temperature.
            SetTemperature1(temperature);   //Set the value on our method which sets this value on the templbl on our mainview.
        }
    }
}

因此，我为所有其他服务器获得相同的温度，但我需要不同的值每个（显而易见的）。我的代码可能有问题，但我不确定。

Because of this, I'm getting the same temperature for all the other servers, but I need different values for each (obvious). Might be something wrong with my code, but I'm not sure.

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