在ColdFusion 8中对XML进行递归查询以查找子级数未知的子级
[英]Recursive Query of XML in ColdFusion 8 to find unknown number of children sub levels
问题描述
We have a clustered ColdFusion 8 environment consisting of two boxes. 
我们有一个由两个盒子组成的集群式ColdFusion 8环境。 I am trying to traverse XML that was created by Cognos 10.1 to find every element in the order they appear in the XML. 我试图遍历由Cognos 10.1创建的XML，以按照它们在XML中出现的顺序查找每个元素。 The purpose is to create a thumbnail html representation of the report's unique layout that substitutes icons for elements. 目的是创建报告的唯一布局的缩略图html表示，以图标代替元素。
The wrinkle is that Cognos puts a new [block].[content] element for each new object in a report and then nests them based on a layered order determined when the report is created. 难题在于，Cognos为报表中的每个新对象放置一个新的[block]。[content]元素，然后根据创建报表时确定的分层顺序将它们嵌套。
For example if you put in a list object with a single column the app will have to traverse through 例如，如果您将列表对象放在一列中，则应用将必须遍历
html.body.report.layouts.layout.reportPages.page [...]
pageBody
block
contents
block=list
block
contents=column
Each report will have a undetermined amount of complexity. 每个报告的复杂程度都不确定。 I have parsed the xml using Ben Nadel's techniques for CF8 with cfgroovy and have usable xml source. 我已经使用Ben Nadel的CF8技术和CFgroovy对xml进行了解析，并且具有可用的xml源。
Now I have to find if a "list" exists and the order it is in the file. 现在，我必须查找“列表”是否存在及其在文件中的顺序。
So far, I've used loops in loops like: 到目前为止，我已经在如下循环中使用了循环：
<cfset cleanedXml = xmlParse( xhtml ) />
<cfloop array="#XmlSearch(cleanedXml.html.body.report.layouts.layout.reportPages.page,'./.')#" index="i">
<cfoutput>
<cfif structKeyExists(i, "xmlattributes")>
<cfloop collection="#i.xmlattributes#" item="a">
#a#: #i.xmlAttributes[a]#<br/>
</cfloop>
</cfif>
<cfloop array="#i.xmlchildren#" index="x">
#x.xmlName#: #x.xmlText#<br/>
<cfif structKeyExists(x, "xmlchildren") >
<cfloop array="#x.xmlchildren#" index="z">
#z.xmlName#: #z.xmlText#<br/>
</cfloop>
</cfif>
</cfloop>
</cfoutput>
<br/>
</cfloop>
However, that only goes down two levels (because its only two loops). 但是，这仅下降了两个级别（因为只有两个循环）。
I've also tried Recusion with Ben's: http://www.bennadel.com/blog/1069-ask-ben-simple-recursion-example.htm 我还尝试了Ben的Recusion： http : //www.bennadel.com/blog/1069-ask-ben-simple-recursion-example.htm
That failed because CF8 does not like having the parent node passed in dynamically. 失败是因为CF8不喜欢让父节点动态传递。
cleanedXml.html.body.report.layouts.layout.reportPages.page works and cleanedXml.html.body.report.layouts.layout.reportPages.page.#parentString# does not cleanedXml.html.body.report.layouts.layout.reportPages.page有效， cleanedXml.html.body.report.layouts.layout.reportPages.page.#parentString#不起作用
It seems like this should be a simple fix, but I just can't get past having to have a loop or recursion for each potential level, which would only break the first time someone wrote a report with one more level than I've anticipated. 看来这应该是一个简单的修复程序，但是我无法避免必须为每个潜在级别进行循环或递归，这只会打破有人第一次编写比我预期更高级别的报告的情况。
If this can't be done in cfml; 如果无法在cfml中完成； I am willing try it in jQuery but I would be starting all over again as my jQuery is limited. 我愿意在jQuery中尝试，但由于jQuery受限制，我将重新开始。
Here is a small sample of a 1400 line xml which is a small report file. 这是一个1400行xml的小样本，这是一个小报告文件。 Notice the "list" on line 195 then its "listColumn" on line 226, I would need both of these in this order. 请注意第195行的“列表”，然后是第226行的“ listColumn”，我将按此顺序同时使用这两个函数。
`
xmlresults - array - Top 1 of 1 rows
1) [xml element]
XmlName: pageBody
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: style
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: contents
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: block
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: contents
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: promptButton
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
type: back
XmlChildren:
[xml element]
XmlName: contents
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: style
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: HTMLItem
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: dataSource
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: staticValue
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: textItem
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: dataSource
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: staticValue
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText: Note: Clicking the "Back" button will not clear any selected Filters.
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: style
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: conditionalStyles
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: conditionalStyleCases
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
refvariable: back1
XmlChildren:
[xml element]
XmlName: conditionalStyle
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
refvariablevalue: 1
XmlChildren:
[xml element]
XmlName: CSS
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
value: visibility:hidden
XmlChildren:
[xml element]
XmlName: conditionalStyleDefault
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: block
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: contents
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: list
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
horizontalpagination: true
name: List1
refquery: Query1
XmlChildren:
[xml element]
XmlName: style
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: listColumns
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: listColumn
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: listColumnTitle
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
[xml element]
XmlName: style
XmlNsPrefix:
XmlNsURI: http://www.w3.org/1999/xhtml
XmlText:
XmlComment:
XmlAttributes: [struct]
XmlChildren:
`
1 个解决方案
解决方案1
1 2015-02-06 21:52:09
I feel like a complete dummy on this one! 我觉得这是一个完全的假人！ I found a answer to my need; 我找到了需要的答案； not necessarily my question. 不一定是我的问题。 Rather than use recusion; 而不是使用recussion； I re-looked at my XmlSearch code which I didn't mention because I thought I already ruled it out as a possibility. 我重新查看了我没有提到的XmlSearch代码，因为我认为我已经排除了这种可能性。 Turns out I was just using the wrong syntax! 原来我只是使用了错误的语法！ After finding: ColdFusion XmlSearch(): XPath with namespaces on stackoverflow I went to these- 找到之后： ColdFusion XmlSearch（）：在stackoverflow上使用名称空间的XPath我去了这些-
http://www.coldfusionguy.com/ColdFusion/blog/index.cfm/2008/9/26/XMLSearch-Specify-xmlns-namespaces-in-an-xPath-Search http://www.coldfusionguy.com/ColdFusion/blog/index.cfm/2008/9/26/XMLSearch-Specify-xmlns-namespaces-in-an-xPath-Search
http://www.bennadel.com/blog/827-nylon-technology-presentation-introduction-to-xpath-and-xmlsearch-in-coldfusion.htm http://www.bennadel.com/blog/827-nylon-technology-presentation-introduction-to-xpath-and-xmlsearch-in-coldfusion.htm
Which led to: http://www.w3.org/TR/xpath/ 导致了： http : //www.w3.org/TR/xpath/
I've created a search that will display the results in the order they appear in in the xml! 我创建了一个搜索，该搜索将按照结果在xml中出现的顺序显示结果！
`<cfset listInXml = #XmlSearch(cleanedXml,"//*[ local-name()='list' or local-name()='combinationChart' ]")# >`
This returned Chart, Chart, List, Chart... etc. like it is in my jsfiddle- http://jsfiddle.net/asheppardwork/3uuaj5jb/1/ 这返回了图表，图表，列表，图表等，就像在我的jsfiddle中一样-http: //jsfiddle.net/asheppardwork/3uuaj5jb/1/
I got stuck because I was only using the syntax that Ben Nadel had on his site; 我之所以陷入困境，是因为我只使用Ben Nadel在他的网站上使用的语法； I never figured it might have changed since then for cf8. 从那以后，我再也没有想到cf8可能会改变。
I hope this helps anyone else looking for the same type of thing. 我希望这可以帮助其他人寻找相同类型的东西。
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