验证错误消息中的 Thymeleaf 单引号 [英] Thymeleaf single quote in validation error message

问题描述

我正在使用验证 API 来验证输入字段是否不包含非法字符:<> ' " 等.我正在使用 @Pattern 注释和自定义消息翻译成这样的东西:以下符号 < > " ' „ 是不允许的.打印此消息时，缺少单引号字符.我有:以下标志<> " „ 不允许.

我试过在 message.properties 中使用 \' 和 \u0027 和 ' 但没有成功(在消息中的第三种情况下有片段 ').消息显示使用:

<p class="error" th:if="${#fields.hasErrors('company.name')}" th:errors="${company.name}">error</p>

Thymeleaf 版本:2.1.3.RELEASE

Spring 版本:3.2.8.RELEASE

Spring webflow 版本:2.4.0.RELEASE

解决方案

我对 Thymeleaf 了解不多.但请注意，如果您使用 MessageFormat 和 ResourceBundle 检索消息，则可能需要转义单引号(带有两个单引号 (''))>.

如果您正在使用 Spring 的 ResourceBundleMessageSource(它在内部使用 ResourceBundle 和 MessageFormat)，您必须做同样的事情.

参见 MessageFormat javadoc:><块引用>

在一个字符串中，一对单引号可以用来引用任何除单引号外的任意字符.例如，模式字符串'{0}'"表示字符串{0}"，而不是 FormatElement.单引号本身必须用双引号 '' 表示，贯穿整个细绳.例如，模式字符串'{''}'"被解释为'{(引号的开始和左花括号)，''(单个quote) 和 }'(右花括号和引号结尾)，而不是 '{' 和'}'(引用左右花括号):代表字符串{'}"，不是{}".

前段时间我写了一篇博客文章，提供了关于这个主题的更多细节:Java 资源包的单引号转义

I'm using validation-api to validate if input field doesn't contain illegal characters: < > ' " etc. I'm using @Pattern annotation with custom message translated to something like this: The following signs < > " ' „ are not allowed. When this message is printed the single quote char is missing. I have: The following signs < > " „ are not allowed.

I've tried using \' and \u0027 and ' in the message.properties but with no success (in third case in the message there is fragment '). Messages are displayed using:

<p class="error" th:if="${#fields.hasErrors('company.name')}" th:errors="${company.name}">error</p>

Thymeleaf version: 2.1.3.RELEASE

Spring version: 3.2.8.RELEASE

Spring webflow version: 2.4.0.RELEASE

解决方案

I don't know much about Thymeleaft. But be aware that you might need to escape single quotes (with two single quotes ('')) if you retrieve the message using MessageFormat and ResourceBundle.

If you are using Spring's ResourceBundleMessageSource (which uses ResourceBundle and MessageFormat internally) you have to do the same thing.

See MessageFormat javadoc:

Within a String, a pair of single quotes can be used to quote any arbitrary characters except single quotes. For example, pattern string "'{0}'" represents string "{0}", not a FormatElement. A single quote itself must be represented by doubled single quotes '' throughout a String. For example, pattern string "'{''}'" is interpreted as a sequence of '{ (start of quoting and a left curly brace), '' (a single quote), and }' (a right curly brace and end of quoting), not '{' and '}' (quoted left and right curly braces): representing string "{'}", not "{}".

Some time ago I wrote a blog post that provides some more details about exactly this topic: Single quote escaping with Java resource bundles

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