Question

我想在我的Spring Boot应用程序中使用百里香模板。我在src/resources/public目录中有一些html页面，并且我希望在不编写控制器的情况下就可以使用它们，因为我想编写一个前端应用程序。我可以通过index.html访问http://localhost:8080/index.html文件，但是它没有使用thymeleaf语法。我该怎么办？

我添加了thymeleaf依赖项，尝试编写SpringResourceTemplateResolver bean，但仍然没有运气。到目前为止，这是我所做的：

@SpringBootApplication
public class MyApplication {

    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }

    @Bean
    public SpringResourceTemplateResolver templateResolver(){
        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
        templateResolver.setPrefix("classpath:/public/");
        templateResolver.setSuffix(".html");
        templateResolver.setTemplateMode(TemplateMode.HTML);
        templateResolver.setCacheable(true);
        return templateResolver;
    }
}

Answer 1

您确实可以在Spring Boot应用程序的控制器上下文之外使用Thymeleaf。这种用法的一个例子是生成电子邮件文本。

我建议在控制器外部使用Thymeleaf的方法是创建一个单独的配置类，该类将Thymeleaf的DE_DE的bean实例作为实例加载，例如：

TemplateResolver

然后，您可以使用以下代码将模板解析器注入到Spring服务，组件等中：

...
import org.springframework.context.annotation.*;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;

@Configuration
public class ThymeleafConfiguration {

    @SuppressWarnings("unused")
    private final Logger log = LoggerFactory.getLogger(ThymeleafConfiguration.class);

    @Bean("mailTemplate")
    @Description("Thymeleaf template resolver serving HTML 5 emails")
    public ClassLoaderTemplateResolver emailTemplateResolver() {
        // This configuration assumes that for this resolver the Thymeleaf templates
        // will be in the src/main/resources/mail of your project.
        return createTemplateResolver("mails/", ".html", "HTML5");
    }

    @Bean("htmlTemplate")
    @Description("Thymeleaf template resolver serving HTML 5 which is directly sent out to the user")
    public ClassLoaderTemplateResolver htmlTemplateResolver() {
        // This configuration assumes that for this resolver the Thymeleaf templates
        // will be in the src/main/resources/html of your project.
        return createTemplateResolver("html/", ".html", "HTML5");
    }

    @Bean(value = "xmlTemplate")
    ClassLoaderTemplateResolver xmlTemplateResolver() {
        return createTemplateResolver("xmltemplates/", ".xml", "XML");
    }

    private ClassLoaderTemplateResolver createTemplateResolver(String prefix, String suffix, String html5) {
        ClassLoaderTemplateResolver emailTemplateResolver = new ClassLoaderTemplateResolver();
        emailTemplateResolver.setPrefix(prefix);
        emailTemplateResolver.setSuffix(suffix);
        emailTemplateResolver.setTemplateMode(html5);
        emailTemplateResolver.setCharacterEncoding(CharEncoding.UTF_8);
        emailTemplateResolver.setOrder(1);
        return emailTemplateResolver;
    }

}

然后您可以简单地使用引擎：

@Qualifier("mailTemplate")
private final SpringTemplateEngine templateEngine;

@Qualifier("xmlTemplate")
private final SpringTemplateEngine xmlTemplate;

上面的代码已在带有Spring Boot 1.5.10.RELEASE的项目中使用

Maven Thymeleaf依赖项是：

private String renderInEngine(Visitor visitor, List<Travel> travelDTOS,
                              SpringTemplateEngine templateEngine, String template) {
    Context context = new Context(ENGLISH);
    context.setVariable(VISITOR_PARAM, visitor);
    context.setVariable(TRAVEL_DETAILS_PARAM, travelDTOS);
    context.setVariable(CONSENT_RECEIVED_BASE_URL, consentReceivedBaseURL);
    context.setVariable(ENCRYPTED_USER_ID, simpleEncryptionService.encrypt(Long.toString(visitor.getId())));
    return templateEngine.process(template, context);
}

如何在没有控制器的情况下使用百里香叶

1 个答案: