java - 带有 thymeleaf 国际化的 Spring 4 无法识别来自资源属性文件的消息

Question

使用 Spring 4 + thymeleaf 开发我的 webapp 以支持国际化。我尝试了很多方法来更改位置文件和基本名称的配置，但仍然收到 ??label.greeting_**??在模板结果上。下面是我的代码

@Configuration
@EnableSpringConfigured
@EnableWebMvc
@EnableScheduling
@ComponentScan(basePackages = {"com.categorybags.web.controller", "com.categorybags.persistence.services"})
public class WebMvcConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/res/**").addResourceLocations("/res/");
    }

    @Bean
    public ViewResolver viewResolver() {
        ServletContextTemplateResolver templateResolver = new ServletContextTemplateResolver();
        templateResolver.setCacheable(false);
        templateResolver.setPrefix("/WEB-INF/jsp/");
        templateResolver.setSuffix(".jsp");
        templateResolver.setTemplateMode("HTML5");

        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.setTemplateResolver(templateResolver);

        ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
        viewResolver.setCharacterEncoding("UTF-8");
        viewResolver.setOrder(1);
        viewResolver.setTemplateEngine(templateEngine);

        return viewResolver;
    }

    @Bean
    public LocaleResolver localeResolver() {
        SessionLocaleResolver localeResolver = new SessionLocaleResolver();
        localeResolver.setDefaultLocale(new Locale("en"));
        return localeResolver;
    }

    @Bean
    public LocaleChangeInterceptor localeChangeInterceptor() {
        LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor();
        localeChangeInterceptor.setParamName("lang");
        return localeChangeInterceptor;
    }

    @Bean
    public MessageSource messageSource() {
        ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
        messageSource.setBasename("WEB-INF/messages");
        messageSource.setDefaultEncoding("UTF-8");
        return messageSource;
    }

    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(localeChangeInterceptor());
    }
}

属性文件在 WEB-INF 下，路径是 src\main\webapp\WEB-INF\messages_en.properties 和 src\main\webapp\WEB-INF\messages_ch.properties

Answer 1

我想我能够通过仅将 ViewResolver 注册到 Spring 而不是 SpringTemplateEngine 和 ServletContextTemplateResolver 这两个其他组件来重现您的问题>.

所以我认为您应该尝试稍微拆分您的配置以将这两个其他组件注册到 spring 容器。这是代码:

@Bean
public ServletContextTemplateResolver templateResolver() {
    ServletContextTemplateResolver templateResolver = new ServletContextTemplateResolver();
    templateResolver.setCacheable(false);
    templateResolver.setPrefix("/WEB-INF/jsp/");
    templateResolver.setSuffix(".jsp");
    templateResolver.setTemplateMode("HTML5");
    return templateResolver;
}

@Bean
public SpringTemplateEngine templateEngine() {
    SpringTemplateEngine templateEngine = new SpringTemplateEngine();
    templateEngine.setTemplateResolver(templateResolver());
    return templateEngine;
}

@Bean
public ViewResolver viewResolver() {
    ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
    viewResolver.setTemplateEngine(templateEngine());
    viewResolver.setCharacterEncoding("UTF-8");
    viewResolver.setOrder(1);
    return viewResolver;
}