如何使用Nokogiri从Yaml文件创建XML

Question

我想阅读并打开一个。yml文件，并使用Nokogiri创建一个XML ?有人能告诉我怎么做吗?

这是Yaml格式:

getOrderDetails: 
  Id: '114'
  Name: 'XYZ' 

这是我需要的XML:

<product> <id>123</id> <name>xyz</name> </product>

这是ruby文件:

require 'nokogiri'
require 'rubygems'
require 'spec/spec_helper'
require 'yaml'
@doc = YAML.load(File.open(File.expand_path('/Workspace/XML_Parsing/getDetails_api.yml'‌​)))
@doc = File.open('/Workspace/XML_Parsing/getDetails_api.yml')
builder = Nokogiri::XML::Builder.new do |xml|
  xml.doc {
    @doc.each do |o|
      o.doc.child {
        puts "eval(#{doc(:getDetails(['Id']))})"
        puts "#{doc['NameCode']}"
        #o.OrderNo
        #o.EnterpriseCode
      }
    end
  }
end
puts builder.to_xml

Answer 1

如果你知道你想要的字段:

require 'yaml'
require 'nokogiri'
yaml = "getOrderDetails:
  Id: '114'
  Name: 'XYZ'"
doc = YAML.load yaml
output = Nokogiri::XML::Builder.new do |xml|
  xml.product{
    xml.id   doc["getOrderDetails"]["Id"]
    xml.name doc["getOrderDetails"]["Name"]
  }
end
puts output.to_xml
#=> <?xml version="1.0"?>
#=> <product>
#=>   <id>114</id>
#=>   <name>XYZ</name>
#=> </product>

如果您想基于Yaml键名创建任意XML文件:

output = Nokogiri::XML::Builder.new do |xml|
  xml.product{
    doc["getOrderDetails"].each do |name,value|
      xml.send(name.downcase,value)
    end
  }
end
puts output.to_xml
#=> <?xml version="1.0"?>
#=> <product>
#=>   <id>114</id>
#=>   <name>XYZ</name>
#=> </product>