Spring Boot 国际化（messages.properties）

Posted 2023-02-26

【中文标题】Spring Boot 国际化（messages.properties）

【英文标题】：Spring Boot internationalization (messages.properties)

【发布时间】：2016-02-23 14:36:12

【问题描述】：

我试图简单地将应用程序的版本号添加到 Thymeleaf 片段。我正在使用 Spring Boot 1.2.5。如果我有一个名为 /resources/messages.properties 的文件定义如下：

application.version=1.0.0

我有一个带有以下片段的 Thymeleaf 视图：

Application Version: <span th:text="#application.version">

它显示的是 ??application.version_en_US?? 之类的东西，而不是 1.0.0。 （我在类路径中也有名为 messages_en.properties 和 messages_en_US.properties 的文件，它们的内容也相同。）我真的不知道如何解决这个问题......我花了好几个小时做一些看似微不足道的事情......

Application.java

@SpringBootApplication
@ComponentScan(basePackages = "org.application")
@EnableAutoConfiguration(exclude=DataSourceAutoConfiguration.class, ThymeleafAutoConfiguration.class)
@PropertySources(value = @PropertySource("classpath:website.properties"))
public class Application extends SpringBootServletInitializer 

    public static void main(String[] args) throws Exception 
        SpringApplication.run(Application.class, args);
    

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) 
        return application.sources(Application.class);
    

WebConfig.java

@EnableWebMvc
@Configuration
public class WebConfig extends WebMvcConfigurerAdapter 

@Bean
public SpelAwareProxyProjectionFactory projectionFactory() 
    return new SpelAwareProxyProjectionFactory();


@Bean
public SessionHandler sessionHandler() 
    return new SessionHandler();


@Override
public void addViewControllers(ViewControllerRegistry registry) 
    registry.addViewController("/web/auth/login").setViewName("auth/login");
    registry.setOrder(Ordered.HIGHEST_PRECEDENCE);


@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) 
    registry.addResourceHandler("/resources/**").addResourceLocations(
            "/resources/");


@Bean
public LocaleChangeInterceptor localeChangeInterceptor() 
    LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor();
    localeChangeInterceptor.setParamName("language");
    return localeChangeInterceptor;


@Bean
public CookieLocaleResolver localeResolver() 
    CookieLocaleResolver localeResolver = new CookieLocaleResolver();
    localeResolver.setDefaultLocale(Locale.ENGLISH);
    return localeResolver;


@Bean
public ResourceBundleMessageSource messageSource() 
    return new ResourceBundleMessageSource();


@Override
public void addInterceptors(InterceptorRegistry registry) 
    // Locale change interceptor
    registry.addInterceptor(localeChangeInterceptor());

    // Utility interceptor which helps with the "active" link styles in the navigation.  --mm
    registry.addInterceptor(new BaseInterceptor());

    // Expire session after a period of time
    registry.addInterceptor(sessionHandler());

ThymeleafConfig.java

@Configuration
public class ThymeleafConfig 

@Bean
public ServletContextTemplateResolver templateResolver() 
    ServletContextTemplateResolver resolver = new ServletContextTemplateResolver();
    resolver.setPrefix("/WEB-INF/views/");
    resolver.setSuffix(".html");

    // must use Legacy HTML5 as the template, otherwise Handlebars will not parse!
    //
    // this should hopefully be fixed in Thymeleaf 3.0
    resolver.setTemplateMode("LEGACYHTML5");
    resolver.setCacheable(false);
    return resolver;


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

    // Add Spring security
    Set<IDialect> dialects = new HashSet<IDialect>();
    engine.setAdditionalDialects(dialects);
    engine.addDialect(new SpringSecurityDialect());
    return engine;


@Bean
public ViewResolver viewResolver() 
    ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
    viewResolver.setTemplateEngine(templateEngine());
    viewResolver.setOrder(1);
    viewResolver.setViewNames(new String[]"*");
    viewResolver.setCache(false);
    return viewResolver;

将购买虚拟镜头给任何可以解决此问题的人...

【参考方案1】：

我想你总是可以在你的 templateEngine 方法中添加这个：

engine.addMessageResolver(new StandardMessageResolver());
or engine.setMessageResolver(new StandardMessageResolver());

另外，从设计的角度来看，我建议你尝试使用 thymeleaf 的自动配置（删除排除），以及 spring boot 自动为你提供的许多其他东西。

【讨论】：

我放弃了这种自制的配置，只是将所有 Thymeleaf 配置放在 application.properties 中。 i18n 现在像冠军一样工作。