扫描目录中的所有文件，并按文件类型返回计数 [英] Scan all files in a directory and return counts by file type

问题描述

我刚刚加入了一家IT公司，开始使用ColdFusion。我的经理要我在ColdFusion中编写代码：

I have just joined an IT company & started working with ColdFusion. My Manager wants me to write code in ColdFusion which:

1. 将扫描任何目录（例如 c：\cf \ ），它包含数百个文件，包括jQuery文件，cfm文件等，并给出这些文件的计数（我们可以手动选择显示哪种文件类型）。

1. Will scan any directory (say c:\cf\) which contains hundreds of files including jQuery files, cfm files etc. and give the counts of such files (we can manually select which file type to show).

我写了以下代码：

    <cfdirectory
        action="list"
        directory="direcoty path" 
        name="Files"
        recurse = "yes"
        filter="*.*" />         
    <cfoutput>No of Java Script: #files.recordCount#</cfoutput>

，但它一次显示一个文件类型。如何同时检查多个文件类型？

but it shows one file type at a time. How can I check multiple file types at the same time?

推荐答案

对于第一个问题，有两种方法。循环遍历每个你感兴趣的不同文件类型，为每个文件类型做一个cfdirectory。

For the first question, there's two approaches. Either loop over each of the different file types you're interested in, doing a cfdirectory for each.

<cfset filetypes = arrayNew(1)>
<cfset arrayAppend(filetypes, "js")>
<cfset arrayAppend(filetypes, "cfm")>
<cfset arrayAppend(filetypes, "pdf")>

<cfloop index="i" from="1" to="#arrayLen(filetypes)#">
    <cfdirectory
        action="list"
        directory="directory path" 
        name="Files"
        recurse = "yes"
        filter="*.#filetypes[i]#" />         
    <cfoutput>No of #filetypes[i]# files: #files.recordCount#<br></cfoutput>
</cfloop>

或者，您可以在一个CFDirectory中执行多种文件类型，参见 http://www.bennadel.com /blog/1221-CFDirectory-Filtering-Uses-Pipe-Character-For-MultipleFilters-Thanks-Steve-Withington-.htm

Or you can do multiple file types in one CFDirectory, see http://www.bennadel.com/blog/1221-CFDirectory-Filtering-Uses-Pipe-Character-For-Multiple-Filters-Thanks-Steve-Withington-.htm

<cfdirectory
    action="list"
    directory="directory path" 
    name="Files"
    recurse = "yes"
    filter="*.js|*.cfm|*.pdf" />         
<cfoutput>No of JS/CFM/PDF files: #files.recordCount#</cfoutput>

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