HTTParty 对看似相同的 XML 的 XML 解析完全让我感到困惑。我正在对 Web 服务进行相同的 GET 调用（获取函数参数），但对不同的资源（/channels/3/functions/58/ 与 /channels/6/functions/106/）进行了调用。我正在使用 HTTParty 拨打电话。问题是它以不同的方式解释结果，我在返回的 XML 中找不到任何可以解释差异的差异。
这是我第一次调用 /channels/3/functions/58/ 时发生的事情
XML 响应：
<functionsResult xmlns="http://www.w3.org/2005/Atom">
<function>
<id>58</id>
<name>API: movies</name>
<type>trigger</type>
<description></description>
<tags></tags>
<status>active</status>
<parameters>
<parameter name="movie_query" label="Movie Query" type="xsd:string" required="false" default=""/>
<parameter name="critics-pick" label="Critics Pick" type="xsd:string" required="false" default=""/>
<parameter name="thousand-best" label="Thousand Best" type="xsd:string" required="false" default=""/>
<parameter name="dvds" label="Dvds" type="xsd:string" required="false" default=""/>
<parameter name="reviewer" label="Reviewer" type="xsd:string" required="false" default=""/>
<parameter name="publication-date" label="Publication Date" type="xsd:date" required="false" default=""/>
<parameter name="opening-date" label="Opening Date" type="xsd:date" required="false" default=""/>
</parameters>
<link rel="self" title="This Function" method="GET" type="application/xml" href="/channels/3/functions/58/"/>
<link rel="related" title="Function Channel" method="GET" type="application/xml" href="/channels/3/"/>
</function>
</functionsResult>
HTTParty 给我的哈希值很好，看起来像这样（调试输出）：
functionsResult:
function:
id: '58'
name: ! 'API: movies'
type: trigger
description: !!null
tags: !!null
status: active
parameters:
parameter:
- name: movie_query
label: Movie Query
type: xsd:string
required: 'false'
default: ''
- name: critics-pick
label: Critics Pick
type: xsd:string
required: 'false'
default: ''
- name: thousand-best
label: Thousand Best
type: xsd:string
required: 'false'
default: ''
- name: dvds
label: Dvds
type: xsd:string
required: 'false'
default: ''
- name: reviewer
label: Reviewer
type: xsd:string
required: 'false'
default: ''
- name: publication-date
label: Publication Date
type: xsd:date
required: 'false'
default: ''
- name: opening-date
label: Opening Date
type: xsd:date
required: 'false'
default: ''
link:
- rel: self
title: This Function
method: GET
type: application/xml
href: /channels/3/functions/58/
- rel: related
title: Function Channel
method: GET
type: application/xml
href: /channels/3/
其他资源的 XML 在其结构上几乎相同：
<functionsResult xmlns="http://www.w3.org/2005/Atom">
<function>
<id>106</id>
<name>search</name>
<type>trigger</type>
<description/>
<tags/>
<status>active</status>
<parameters>
<parameter name="callback" label="Callback" type="string" required="false" default=""/>
<parameter name="geocode" label="Geocode" type="string" required="false" default=""/>
<parameter name="lang" label="Lang" type="string" required="false" default=""/>
<parameter name="locale" label="Locale" type="string" required="false" default=""/>
<parameter name="page" label="Page" type="string" required="false" default=""/>
<parameter name="result_type" label="Result Type" type="string" required="false" default=""/>
<parameter name="rpp" label="Rpp" type="string" required="false" default=""/>
<parameter name="show_user" label="Show User" type="string" required="false" default=""/>
<parameter name="until" label="Until" type="string" required="false" default=""/>
<parameter name="since_id" label="Since Id" type="string" required="false" default=""/>
<parameter name="include_entities" label="Include Entities" type="string" required="false" default=""/>
</parameters>
<link rel="self" title="This Function" method="GET" type="application/xml" href="/channels/6/functions/106/"/>
<link rel="related" title="Function Channel" method="GET" type="application/xml" href="/channels/6/"/>
</function>
</functionsResult>
但是，返回的散列会为“参数”（调试输出）返回一个空数组！
functionsResult:
function:
id: '106'
name: ! 'search'
type: trigger
description: !!null
tags: !!null
status: active
parameters:
parameter:
- ''
- ''
- ''
- ''
- ''
- ''
- ''
- ''
- ''
- ''
- ''
link:
- rel: self
title: This Function
method: GET
type: application/xml
href: /channels/6/functions/106/
- rel: related
title: Function Channel
method: GET
type: application/xml
href: /channels/6/
我唯一能想到的是第二个GET调用中的参数在某些属性中有下划线？？？这似乎是一个不太可能的解释。任何帮助深表感谢。