Spring Cloud：从配置服务器加载消息源

Question

@Configuration
public class Config {

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

Answer 1

如果要从配置服务加载它们，只需为它指向配置路径。

这个类的值是从bootstrap.yml中读取的。

我在application.yml级别上有一个名为“locale”的文件夹，里面有文件“messages_en_gb.properties”。

Structure:
  application.yml
  locale (folder)
     messages_en_GB.properties

@Configuration
public class MessageConfig {

  private static final Logger LOGGER = LoggerFactory.getLogger(MessageConfig.class);

  @Value("${spring.cloud.config.uri}")
  private String cloudUri;

  @Value("${spring.cloud.config.label}")
  private String cloudLabel;

  @Value("${spring.profiles.active}")
  private String profile;

  @Value("${spring.cloud.config.enabled:false}")
  private boolean cloudEnabled;

  @Bean
  @RefreshScope
  public ReloadableResourceBundleMessageSource messageSource() {
    ReloadableResourceBundleMessageSource messageSource =
        new ReloadableResourceBundleMessageSource();
    messageSource.setBasename(buildMessageLocation());
    messageSource.setDefaultEncoding("UTF-8");
    return messageSource;
  }

  private String buildMessageLocation() {

    if (Strings.isNullOrEmpty(cloudUri) || Strings.isNullOrEmpty(profile) || Strings
        .isNullOrEmpty(cloudLabel) || !cloudEnabled) {
      LOGGER.info("The cloud configuration is disabled, using local messages properties file");
      return "classpath:locale/messages";
    }

    return cloudUri + "/" + profile + "/" + profile + "/" + cloudLabel + "/locale/" + "messages";
  }