从azure服务管理API返回的XML中提取值

Question

我尝试过几种从XML文件中提取值的方法，但似乎都不起作用。我正在使用C#。XML如下所示

<?xml version="1.0" encoding="utf-8"?>
<HostedService xmlns="http://schemas.microsoft.com/windowsazure">
  <Url>hosted-service-url</Url>
  <ServiceName>hosted-service-name</ServiceName>
  <HostedServiceProperties>
    <Description>description</Description>
    <Location>location</Location>
    <AffinityGroup>affinity-group</AffinityGroup>
    <Label>label</Label>
  </HostedServiceProperties>
</HostedService>

我想检索托管服务url、托管服务名称、描述、位置、亲和组和标签

检索这些值的最佳方法是什么？

编辑：

谢谢L.B，这个方法工作得很好。然而，我刚刚被告知，我将不得不使用下面更大的XML。

<?xml version="1.0" encoding="utf-8"?>
<HostedService xmlns="http://schemas.microsoft.com/windowsazure">
  <Url>hosted-service-url</Url>
  <ServiceName>hosted-service-name</ServiceName>
  <HostedServiceProperties>
    <Description>description</Description>
    <Location>location</Location>
    <AffinityGroup>affinity-group</AffinityGroup>
    <Label>base-64-encoded-name-of-the-service</Label>
  </HostedServiceProperties>
  <Deployments>
    <Deployment>
      <Name>deployment-name</Name>
      <DeploymentSlot>deployment-slot</DeploymentSlot>
      <PrivateID>deployment-id</PrivateID>
      <Status>deployment-status</Status>
      <Label>base64-encoded-deployment-label</Label>
      <Url>deployment-url</Url>
      <Configuration>base-64-encoded-configuration-file</Configuration>
      <RoleInstanceList>
        <RoleInstance>
          <RoleName>role-name</RoleName>
          <InstanceName>role-instance-name</InstanceName>
          <InstanceStatus>instance-status</InstanceStatus>
        </RoleInstance>
      </RoleInstanceList>
      <UpgradeDomainCount>upgrade-domain-count</UpgradeDomainCount>
      <RoleList>
        <Role>
          <RoleName>role-name</RoleName>
          <OsVersion>operating-system-version</OsVersion>
        </Role>
      </RoleList>
      <SdkVersion>sdk-version-used-to-create-package</SdkVersion>
      <InputEndpointList>
         <InputEndpoint>
            <RoleName>role-name</RoleName>
            <Vip>virtual-ip-address</Vip>
            <Port>port-number</Port>
         </InputEndpoint>
         …
      </InputEndpointList>
      <Locked>deployment-write-allowed-status</Locked>
      <RollbackAllowed>rollback-operation-allowed</RollbackAllowed>
    </Deployment>
  </Deployments>
</HostedService>

我的最后一个问题是，有几个重复的标签，例如，

我该如何区分它们呢？

Answer 1

您可以使用Xml to Linq来解析您的xml字符串。对于ex来说，

var xElem = XElement.Load(new StringReader(xml));
var ns = XNamespace.Get("http://schemas.microsoft.com/windowsazure");
var obj = new
    {
        ServiceName = xElem.Descendants(ns + "ServiceName").First().Value,
        Description = xElem.Descendants(ns + "Description").First().Value,
    };

或者，您可以使用XmlSerializer

XmlSerializer xs = new XmlSerializer(typeof(HostedService), "http://schemas.microsoft.com/windowsazure");
var obj2 = (HostedService)xs.Deserialize(new StringReader(xml));



public class HostedService
{
    public string Url;
    public string ServiceName;
    public HostedServiceProperties HostedServiceProperties;
}

public class HostedServiceProperties
{
    public string Description;
    public string Location;
    public string AffinityGroup;
    public string Label;
}

Answer 2

也许您可以先尝试XmlDocument ( http://msdn.microsoft.com/en-us/library/d271ytdx.aspx)和LINQ XML -( http://msdn.microsoft.com/en-us/library/bb669152.aspx)中的示例，然后将其应用到您的案例中。