我正在处理一个包含计算机游戏产品信息的附属程序的大型 XML 文档。整体示例如下所示。
<prod id="743854322">
<pId>GS811CF</pId>
<text>
<name>Tour De France 2013</name>
<desc>Platform: XBOX 360 Publisher: FOCUS HOME INTER Genre: SPORTS Supported Languages: English</desc>
</text>
<uri>
<awTrack>http://www.awin1.com/pclick.php?p=743854322&a=161542&m=3026</awTrack>
<awImage>http://images.productserve.com/preview/3026/743854322.jpg</awImage>
<mLink>http://tracking.searchmarketing.com/click.asp?aid=520005430000038657</mLink>
<mImage>http://images2.drct2u.com/content/images/products/gs/gs811/gs811_xb2to52.jpg</mImage>
</uri>
<price curr="GBP">
<buynow>47.00</buynow>
<delivery>3.99</delivery>
</price>
<cat>
<awCatId>579</awCatId>
<awCat>Video Games</awCat><mCat>Main Menu|Electricals|Gaming &amp; Consoles|Video Games</mCat>
</cat>
<brand>
<awBrandId>427</awBrandId>
<brandName>Xbox 360</brandName>
</brand>
</prod>
我希望能够在此文档中搜索等于“Tour De France 2013”并且也在 xbox“平台:XBOX 360”上的计算机游戏名称。
我用 xpath 尝试了几件事,但似乎无法达到我想要的效果。我想知道你们会怎么做。
我试过(这行得通......但我不想对'name'使用 contains 方法)
result = file.xpath("//prod[contains(.,\"Tour De France 2013\") and contains(.,\"Platform: XBOX 360\")]")[0]
# => #<Nokogiri::XML::Element:0x2b6e23c name="prod" attributes=[#<Nokogiri::XML::Attr:0x2b6e19c name="id" value="743854322">] children=[#<Nokogiri::XML::Element:0x2b6db84 name="pId" children=[#<Nokogiri::XML::Text:0x2b6d850 "GS811CF">]>, #<Nokogiri::XML::Element:0x2b6d5d0 name="text" children=[#<Nokogiri::XML::Element:0x2b6d300 name="name" children=[#<Nokogiri::XML::Text:0x2b6d094 "Tour De France 2013">]>, #<Nokogiri::XML::Element:0x2b6ce14 name="desc" children=[#<Nokogiri::XML::Text:0x2b6cb1c "Platform: XBOX 360 Publisher: FOCUS HOME INTER Genre: SPORTS Supported Languages: English">]>]>, #<Nokogiri::XML::Element:0x2b6c680 name="uri" children=[#<Nokogiri::XML::Element:0x2b70334 name="awTrack" children=[#<Nokogiri::XML::Text:0x2b70078 "http://www.awin1.com/pclick.php?p=743854322&a=161542&m=3026">]>, #<Nokogiri::XML::Element:0x2b6fd94 name="awImage" children=[#<Nokogiri::XML::Text:0x2b6fb14 "http://images.productserve.com/preview/3026/743854322.jpg">]>, #<Nokogiri::XML::Element:0x2b6f81c name="mLink" children=[#<Nokogiri::XML::Text:0x2b6f510 "http://tracking.searchmarketing.com/click.asp?aid=520005430000038657">]>, #<Nokogiri::XML::Element:0x2b6f290 name="mImage" children=[#<Nokogiri::XML::Text:0x2b6efd4 "http://images2.drct2u.com/content/images/products/gs/gs811/gs811_xb2to52.jpg">]>]>, #<Nokogiri::XML::Element:0x2b6ebec name="price" attributes=[#<Nokogiri::XML::Attr:0x2b6eb74 name="curr" value="GBP">] children=[#<Nokogiri::XML::Element:0x2b7256c name="buynow" children=[#<Nokogiri::XML::Text:0x2b72274 "47.00">]>, #<Nokogiri::XML::Element:0x2b71f7c name="delivery" children=[#<Nokogiri::XML::Text:0x2b71d10 "3.99">]>]>, #<Nokogiri::XML::Element:0x2b717d4 name="cat" children=[#<Nokogiri::XML::Element:0x2b7152c name="awCatId" children=[#<Nokogiri::XML::Text:0x2b7125c "579">]>, #<Nokogiri::XML::Element:0x2b70ff0 name="awCat" children=[#<Nokogiri::XML::Text:0x2b70d84 "Video Games">]>, #<Nokogiri::XML::Element:0x2b70a64 name="mCat" children=[#<Nokogiri::XML::Text:0x2b707bc "Main Menu|Electricals|Gaming & Consoles|Video Games">]>]>, #<Nokogiri::XML::Element:0x2b742cc name="brand" children=[#<Nokogiri::XML::Element:0x2b73fd4 name="awBrandId" children=[#<Nokogiri::XML::Text:0x2b73d54 "427">]>, #<Nokogiri::XML::Element:0x2b73a84 name="brandName" children=[#<Nokogiri::XML::Text:0x2b737c8 "Xbox 360">]>]>]>
所以我然后尝试(返回零):
result = file.xpath("//prod[contains(.,\"Platform: PS3\") and name = \Tour De France 2013\"]")[0]
#=> nil
我正在努力访问“名称”-我认为这可能是因为它嵌套得很深。但我不知道如何引用它。