Regex 如何更换&；书信电报；与<；冷若冰霜

我正在使用ColdFusion从数据库条目创建XML文档，创建XML时，

的格式为

和

。因此，在创建XML之前，有没有办法将

更改为

简单答案：

编写文件时不要
XmlFormat（）
，这就是导致出现双重编码的原因


详细回答：

我建议您使用映射来创建提要：

<cfquery name="messages" datasource="showcase_Uk">
  select
    id, uploadDate, name, description, 'yes' as isPermaLink
  from
    t_items
  where
    pid = 2 and spid = 45
</cfquery>

<cfset feedMeta = {
  version: "rss_2.0",
  title: "Examples",
  link: "http://showcase.com",
  publisheddate: Now(),
  description: "Examples from UK Showcase"
}>

<cfset feedMap = {
  title: "name",
  content: "description",
  publisheddate: "uploadDate",
  id: "id",
  idpermalink: "isPermaLink"
}>

<cffeed
  action="create"
  properties="#feedMeta#" columnMap="#feedMap#" query="#messages#"
  xmlvar="feedXml"
>

<cffile
  action="write"
  file="#ExpandPath('/ukshowcasefeed.xml')#" nameconflict="overwrite" charset="utf-8"
  output="#feedXml#"
>

附议。您专门将完全有效的XML转换为转义XML，因为您要通过
xmlFormat（）
传递它。如果你不想那样做。。。那就不要了。反省一下，
xmlFormat（）
是一个名称非常糟糕的函数。它应该是
encodeForCData（）
或something@AdamCameron在这种情况下，甚至没有必要使用它。我在
XmlFormat（）
中遇到的问题是，它鼓励人们将XML视为字符串，这也是OP犯下错误的基础。XML是一种数据结构，就像结构一样，应该这样对待。请参阅我更新的答案。
<cfquery name="messages" datasource="showcase_Uk">
  select
    id, uploadDate, name, description, 'yes' as isPermaLink
  from
    t_items
  where
    pid = 2 and spid = 45
</cfquery>

<cfset feedMeta = {
  version: "rss_2.0",
  title: "Examples",
  link: "http://showcase.com",
  publisheddate: Now(),
  description: "Examples from UK Showcase"
}>

<cfset feedMap = {
  title: "name",
  content: "description",
  publisheddate: "uploadDate",
  id: "id",
  idpermalink: "isPermaLink"
}>

<cffeed
  action="create"
  properties="#feedMeta#" columnMap="#feedMap#" query="#messages#"
  xmlvar="feedXml"
>

<cffile
  action="write"
  file="#ExpandPath('/ukshowcasefeed.xml')#" nameconflict="overwrite" charset="utf-8"
  output="#feedXml#"
>

<cfquery name="messages" datasource="showcase_Uk">
  select
    id, 
    'yes' as idpermalink
    uploadDate as publisheddate,
    name as title,
    description as content 
  from
    t_items
  where
    pid = 2 and spid = 45
</cfquery>

<cffeed
  action="create"
  properties="#feedMeta#" query="#messages#"
  xmlvar="feedXml"
>