下面是我试图符合的架构:

  <?xml version="1.0"?>
  <rss version="2.0" xmlns:g="http://base.google.com/ns/1.0">
  <channel>
     <title>The name of your data feed</title>
     <link>http://www.example.com</link>
     <description>A description of your content</description>
     <item>
       <title>Red wool sweater</title>
       <link> http://www.example.com/item1-info-page.html</link>
       <description>Comfortable and soft ...    cold winter nights.</description>
       <g:image_link>http://www.example.com/image1.jpg</g:image_link>
       <g:price>25</g:price>
       <g:condition>new</g:condition>
       <g:id>1a</g:id>
     </item>
  </channel>
  </rss>

以下是我能够制作的内容:

<?xml version="1.0"?>
<rss version="2.0" xmlns:g="http://base.google.com/ns/1.0">
  <channel>
    <title>The name of your data feed</title>
    <link>http://www.google.com</link>
    <description>A description of your content</description>
    <item>
      <title>Red Wool Sweater</title>
      <link>http://www.google.com/Red-Wool-Sweater</link>
      <description>Comfortable and soft, this sweater will keep you warm on those cold winter nights.</description>
      <g:image_link>http://www.example.com/image1.jpg</g:image_link>
      <g:price>25</g:price>
      <g:condition>new</g:condition>
      <g:id>1a</g:id>
    </item>
  </channel>
</rss version="2.0">

下面是我为实现此目的而编写的代码(上面):

    // create and instantiate the writer object.
    XmlTextWriter xw = new XmlTextWriter("Products.xml", null);

    // use indenting.
    xw.Formatting = Formatting.Indented;

    // write the start of the document.
    xw.WriteStartDocument();

    xw.WriteStartElement("rss version=\"2.0\"");

    xw.WriteAttributeString("xmlns", "g", null, "http://base.google.com/ns/1.0");

    xw.WriteStartElement("channel");

    xw.WriteElementString("title", "The name of your data feed");
    xw.WriteElementString("link", "http://www.google.com");
    xw.WriteElementString("description", "A description of your content");

    xw.WriteStartElement("item");

    xw.WriteElementString("title", "Red Wool Sweater");
    xw.WriteElementString("link", "http://www.google.com/Red-Wool-Sweater");
    xw.WriteElementString("description", "Comfortable and soft, this sweater will keep you warm on those cold winter nights.");
    xw.WriteElementString("g:image_link", "http://www.example.com/image1.jpg");
    xw.WriteElementString("g:price", "25");
    xw.WriteElementString("g:condition", "new");
    xw.WriteElementString("g:id", "1a");

    // write the end element.
    xw.WriteEndElement();
    xw.WriteEndElement();
    xw.WriteEndElement();
    // write the end of the document.
    xw.WriteEndDocument();

    // close the writer.
    xw.Close();
    // press enter to exit.
    Console.ReadKey();

那些目光敏锐的人会发现我在符合 google 产品提要模式时遇到的问题……“结束 rss 标签元素”……是错误的。到目前为止，我已经设法复制了很多，但没有结束标签。你们能帮忙吗？

此外，如果我做错了什么或以错误的方式进行操作，请随时更改我的代码？干杯。

最佳答案

问题是您正在尝试创建一个名称 为rss version="2.0" 的元素。相反，您应该创建一个名为 rss 的元素，并将 version 属性设置为 2.0 的值:

xw.WriteStartElement("rss");
xw.WriteAttributeString("version", "2.0");

我个人会使用 LINQ to XML 而不是 XmlWriter 开始，请注意 - 这是一个更好的 API。

关于c# - 在 .Net (C#) 中构建 Google 产品提要？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/4024482/