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有没有一种优雅的方式来阅读Nokogiri解析的XML?

nokogiri mapping xml ruby-on-rails

Trip · 技术社区 · 12 年前

我正试图从这个XML中检索两小部分信息。这个 id (choice_xxxxxxx)和 description (真/假):

<choices>
  <component>
    <id>choice_6WFRvQrXAN7</id>
    <description lang="und">True</description>
  </component>
  <component>
    <id>choice_5xBWm5NQRkA</id>
    <description lang="und">False</description>
  </component>
</choices>

但因为我在Nokogiri中解析这个,所以信息返回如下:

=> 0;34#(Element:0x3feeeb4301b0 {
  name = "choices",
  namespace = 0;34#(Namespace:0x3feeeb6f1fac {
    href = "http://website.myxml.xsd"
    }),
  children = [
    0;34#(Text "\n\t\t\t\t"),
    0;34#(Element:0x3feeea7e36b4 {
      name = "component",
      namespace = 0;34#(Namespace:0x3feeeb6f1fac {
        href = "http://website.myxml.xsd"
        }),
      children = [
        0;34#(Text "\n\t\t\t\t\t"),
        0;34#(Element:0x3feeea7e624c {
          name = "id",
          namespace = 0;34#(Namespace:0x3feeeb6f1fac {
            href = "http://website.myxml.xsd"
            }),
          children = [ 0;34#(Text "choice_6WFRvQrXAN7")]
          }),
        0;34#(Text "\n\t\t\t\t\t"),
        0;34#(Element:0x3feeea7e4a50 {
          name = "description",
          namespace = 0;34#(Namespace:0x3feeeb6f1fac {
            href = "http://website.myxml.xsd"
            }),
          attributes = [
            0;34#(Attr:0x3feeea7e86c8 { name = "lang", value = "und" })],
          children = [ 0;34#(Text "True")]
          }),
        0;34#(Text "\n\t\t\t\t")]
      }),
    0;34#(Text "\n\t\t\t\t"),
    0;34#(Element:0x3feeea7ea34c {
      name = "component",
      namespace = 0;34#(Namespace:0x3feeeb6f1fac {
        href = "http://website.myxml.xsd"
        }),
      children = [
        0;34#(Text "\n\t\t\t\t\t"),
        0;34#(Element:0x3feeea7e8f88 {
          name = "id",
          namespace = 0;34#(Namespace:0x3feeeb6f1fac {
            href = "http://website.myxml.xsd"
            }),
          children = [ 0;34#(Text "choice_5xBWm5NQRkA")]
          }),
        0;34#(Text "\n\t\t\t\t\t"),
        0;34#(Element:0x3feeea7eb738 {
          name = "description",
          namespace = 0;34#(Namespace:0x3feeeb6f1fac {
            href = "http://website.myxml.xsd"
            }),
          attributes = [
            0;34#(Attr:0x3feeea7eb3f0 { name = "lang", value = "und" })],
          children = [ 0;34#(Text "False")]
          }),
        0;34#(Text "\n\t\t\t\t")]
      }),
    0;34#(Text "\n\t\t\t")]
  })

从Nokogiri::XML::Nodeset中提取这两个变量的最优雅的方法是什么?

1 回复 | 直到 12 年前

Trip 12 年前

假设您将解析的输出存储在一个变量中,为此,我将命名 @xml .

@xml.css('component').map do |node|
  {
    id: node.children.css('id').first.text,
    description: node.children.css('description').first.text
  }
end

这将为您提供一个包含所需数据的哈希数组。