如何在Freemarker中输出$ {expression}而不进行解释？ [英] How to output ${expression} in Freemarker without it being interpreted?

问题描述

我正在尝试将Freemarker与jQuery Templates结合使用。

两个框架都使用美元符号/卷曲括号来标识要替换的表达式（或者它们是在freemarker中称为插值），例如 $ {person.name} 。

因此，当我使用该语法定义带有表达式的jQuery模板时，Freemarker会尝试解释它们（并且失败）。

我尝试了各种转义 $ {序列的组合，以使其通过Freemarker无效- \ $ {， \ $ \ {， $ \ {等）

在美元和花括号之间插入一个自由标记注释（例如 $<＃--> {expression} ）确实可行-但我正在寻找一种更简洁，优雅的解决方案。 c> $ {？

解决方案

这应打印$ {person.name}：

  $ {r $ {person.name}} 
  

从 freemarker文档

一种特殊的字符串文字是原始字符串文字。在原始字符串文字中，反斜杠和$ {没有特殊含义，它们被视为纯字符。为了表明字符串文字是原始字符串文字，您必须在开头的引号或撇号前面加上一个r

I'm trying to use Freemarker in conjunction with jQuery Templates.

Both frameworks use dollar sign/curly brackets to identify expressions for substitution (or as they're called in freemarker, "interpolations") , e.g. ${person.name} .

So when I define a jQuery Template with expressions in that syntax, Freemarker tries to interpret them (and fails).

I've tried various combinations of escaping the ${ sequence to pass it through Freemarker to no avail - \${, \$\{, $\{, etc.

Inserting a freemarker comment in between the dollar and the curly (e.g. $<#-- -->{expression}) DOES work - but I'm looking for a more concise and elegant solution.

Is there a simpler way to get a Freemarker template to output the character sequence ${?

解决方案

This should print ${person.name}:

${r"${person.name}"}

From the freemarker docs

A special kind of string literals is the raw string literals. In raw string literals, backslash and ${ have no special meaning, they are considered as plain characters. To indicate that a string literal is a raw string literal, you have to put an r directly before the opening quotation mark or apostrophe-quote

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