如何防止Thyemleaf对模板进行urlencoding？

Question

We have the following thymeleaf config:

    @Bean
    public TemplateEngine emailTemplateEngine() {
        final SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.addTemplateResolver(htmlTemplateResolver());
        templateEngine.addTemplateResolver(stringTemplateResolver());
        return templateEngine;
    }

    private ITemplateResolver htmlTemplateResolver() {
        final ClassLoaderTemplateResolver templateResolver = new ClassLoaderTemplateResolver();
        templateResolver.setOrder(1);
        templateResolver.setResolvablePatterns(Collections.singleton("templates/*"));
        templateResolver.setSuffix(".html");
        templateResolver.setTemplateMode(TemplateMode.HTML);
        templateResolver.setCharacterEncoding(StandardCharsets.UTF_8.name());
        templateResolver.setCacheable(false);
        return templateResolver;
    }

    private ITemplateResolver stringTemplateResolver() {
        final StringTemplateResolver templateResolver = new StringTemplateResolver();
        templateResolver.setOrder(2);
        templateResolver.setTemplateMode(TemplateMode.TEXT);
        templateResolver.setCacheable(false);
        return templateResolver;
    }

That is - two resolvers, one for html, one for text.

We use the html one for the body of our emails, the text one for the subject.

Given:

• a subject "template" (a plain string) like this: "[[${values.createdBy}]] created a widget"

• a values.createdBy value of Brock O'Samson

We are seeing the result: Brock O'Samson

Any ideas what to config? The "template mode" seemed like the obvious solution, but it was already set to TEXT.

Answer 1

Two independent approaches:

• Use th:utext tag attribute

• Set template mode in stringTemplateResolver() to TemplateMode.LEGACYHTML5 (deprecated)