Question

我正在尝试编写正则表达式来搜索和替换图像路径，并保留相同文件名的现有路径到我的远程服务器路径。

用户在上传替换路径时上传我想要的HTML文件，然后保存在db。

中

我写了一些正则表达式它似乎并不适用于我在互联网上找到的正则表达式。

请在下面找到代码段...

＆＃13;

for example this my HTML content.

<cfsavecontent variable="htmlcont">

<html>
<head>
</head>
<body>
<a href='http://www.w3schools.com'><img src='http://www.w3schools.com/images/w3schools.png' alt='W3Schools.com' class='img-responsive'></a>
<div class="w3-row">
<div class="w3-third w3-center">
<h2>JPG Images</h2>
<img alt="Mountain View" src="pic_mountain.jpg" style="width: 304px; height: auto" class="img-responsive">
</div>
<div class="w3-third w3-center">
<h2>GIF Images</h2>
<img alt="" src="html5.gif" style="width: 128px; height: auto" class="img-responsive">
</div>
<div class="w3-third w3-center">
<h2>PNG Images</h2>
<img alt="Graph" src="pic_graph.png" style="width: 170px; height: auto" class="img-responsive">
</div>
</div>

<table class="lamp"><tr>
<th style="width:34px">
<img src="/images/lamp.jpg" alt="Note" style="height:32px;width:32px"></th>
<td>Always specify the width and height of an image. If width and height are not specified, the page will flicker while the image loads.
</td>
</tr></table>
<hr>

<table class="lamp"><tr>
<th style="width:34px">
<img src="/images/lamp.jpg" alt="Note" style="height:32px;width:32px"></th>
<td>Add &quot;border:0;&quot; to prevent IE9 (and earlier) from displaying a border around the image.</td>
</tr></table>
<hr>
</body>
</html>
</cfsavecontent>

＆＃13;

我试图替换

http://www.w3schools.com/images/w3schools.png

要

http://myremoteServer.com/234001/images/w3schools.png

OR

<img alt="Graph" src="pic_graph.png" style="width: 170px; height: auto" class="img-responsive">

要

<img alt="Graph" src="http://myremoteServer.com/234001/images/pic_graph.png" style="width: 170px; height: auto" class="img-responsive">

CODE：

＆＃13;

<cfset regxv =  'src="\K[^"]*(?=")' />
<cfset resluthtml = REReplace (htmlcont,regxv, "http://myremoteServer.com/234001/images/") />


<cfdump var="#resluthtml#" label="resluthtml" >

＆＃13;

Answer 1

使用ColdFusion的内置引擎（雅加达ORO，Perl）捕捉是一个痛苦的***。所以，让我们在这里使用一些Java魔法（POSIX）：

<cfset regex    = createObject("java", "java.util.regex.Pattern").compile('<img [^>]*src=["'']([^"'']*)["'']')>

<cfset result   = createObject("java", "java.lang.StringBuilder").init()>
<cfset matcher  = regex.matcher(htmlcont)>
<cfset last     = 0>

<cfloop condition="matcher.find()">

    <cfset result.append(
        htmlcont.substring(
            last,
            matcher.start()
        )
    )>

    <cfset token = matcher.group(
        javaCast("int", ( matcher.groupCount() gte 1 ? 1 : 0 ))
    )>

    <!--- go with your replace logic here, token is the value of the [src] attribute --->
    <cfset token = ("http://myremoteServer.com/234001/images/" & listLast(token, "/"))>

    <cfset result.append(token)>

    <cfset last = matcher.end()>
</cfloop>

<cfset result.append(
    htmlcont.substring(last)
)>
<cfset result = result.toString()>

<cfdump var="#result#">

上传替换图像路径REGEX时Coldfusion

1 个答案: