用 Ruby 迭代 JSON [重复]

Question

我在一个名为“json.json”的文件中有 JSON 内容：

{
    "ENAX-BRANCHESM-10" :
    {
        "repo":"test-ASO",
        "PATH":"/tmp/pruebaAlvaro",
        "ARTEFACTOS":"enax_phoneValidationCX-1.0.0.jar,enax_phoneValidationCX-1.0.0-sn.jar,enax_phoneValidationCX-1.0.0-facade.jar",
        "uri":"http://server:8081/artifactory/test-ASO",
        "created":"A705663"

    },
    "QZQP-QZQPMAN-16" : {
        "repo": "test-ASO",
        "PATH": "/tmp/pruebaAlvaro2",
        "ARTEFACTOS": "qzqp_manageApp.jar,qzqp_manageApp-sn.jar,qzqp_manageApp-facade.jar",
        "uri": "http://server:8081/artifactory/test-ASO",
        "created": "A705663"
    }
}

我尝试这样做：

#!/usr/bin/ruby
require 'rubygems'
require 'json'
require 'uri'
require 'net/http'

fichero = File.read("./json.json")
parseo = JSON.parse(fichero)
valores = parseo.map { |_, v| { v[:PATH] => v[:ARTEFACTOS].split(',') } }
puts valores

但是我收到了这个错误：

pruebas.rb:11: private method `split' called for nil:NilClass (NoMethodError)
        from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `map'
        from pruebas.rb:11:in `each'
        from pruebas.rb:11:in `map'
        from pruebas.rb:11

我的问题是，如何从 JSON 中获取此输出？

/tmp/pruebaAlvaro
enax_phoneValidationCX-1.0.0.jar

/tmp/pruebaAlvaro 
enax_phoneValidationCX-1.0.0-sn.jar

/tmp/pruebaAlvaro
enax_phoneValidationCX-1.0.0-facade.jar

/tmp/pruebaAlvaro2 
qzqp_manageApp.jar

/tmp/pruebaAlvaro2
qzqp_manageApp-sn.jar

/tmp/pruebaAlvaro2
qzqp_manageApp-facade.jar

parseo 变量的内容是：

QZQP-QZQPMAN-16createdA705663repotest-ASOurihttp://server:8081/artifactory/test-ASOARTEFACTOSqzqp_manageApp.jar,qzqp_manageApp-sn.jar,qzqp_manageApp-facade.jarPATH/tmp/pruebaAlvaro2ENAX-BRANCHESM-10createdA705663repotest-ASOurihttp://server:8081/artifactory/test-ASOARTEFACTOSenax_phoneValidationCX-1.0.0.jar,enax_phoneValidationCX-1.0.0-sn.jar,enax_phoneValidationCX-1.0.0-facade.jarPATH/tmp/pruebaAlvaro

这是正确的输出吗？也许我收到了那个错误，因为parseo.map 需要不同的内容并且失败了？我能做什么？

Answer 1

试试这个：

myhash = Hash.new
valores = parseo.map { |_, v| myhash[v["PATH"]] = v["ARTEFACTOS"].split(',') }
puts myhash

#output:

{"/tmp/pruebaAlvaro"=>["enax_phoneValidationCX-1.0.0.jar", "enax_phoneValidationCX-1.0.0-sn.jar", "enax_phoneValidationCX-1.0.0-facade.jar"]}
{"/tmp/pruebaAlvaro2"=>["qzqp_manageApp.jar", "qzqp_manageApp-sn.jar", "qzqp_manageApp-facade.jar"]}

现在，如果您想访问任何特定的“PATH”，那么可以这样做：

> myhash["/tmp/pruebaAlvaro"]
#=> ['enax_phoneValidationCX-1.0.0.jar', 'enax_phoneValidationCX-1.0.0-sn.jar', 'enax_phoneValidationCX-1.0.0-facade.jar']

抱歉，我刚刚注意到您的预期输出：

myhash.each do |k,v|
  v.each do |value|
    puts k
    puts value
    puts # to drop a blank line
  end
end
#output:
/tmp/pruebaAlvaro
enax_phoneValidationCX-1.0.0.jar

/tmp/pruebaAlvaro
enax_phoneValidationCX-1.0.0-sn.jar

/tmp/pruebaAlvaro
enax_phoneValidationCX-1.0.0-facade.jar

/tmp/pruebaAlvaro2
qzqp_manageApp.jar

/tmp/pruebaAlvaro2
qzqp_manageApp-sn.jar

/tmp/pruebaAlvaro2
qzqp_manageApp-facade.jar

Answer 2

您正在尝试通过提供符号来访问字符串键。相反，将字符串传递给 :[] 方法而不是符号（v['PATH'] 和 v['ARTEFACTOS']）。