为什么在Spring MVC中消息属性返回Null

Question

我正在进行一个项目，希望将消息外部化。属性文件。以便操作团队能够根据要求进行更改。

为此，我编写了一个类似的配置类

@Configuration
@ComponentScan(basePackages = {"lk.ideahub.symphony.modules", "lk.ideahub.symphony.product"})
@PropertySources(value = {@PropertySource(value = {"classpath:messages.properties"})})
public class MessageConfig {
private static final Logger log = LoggerFactory.getLogger(MessageConfig.class);
@Bean
public MessageSource messageSource() {
log.info("Message properties loading into the project");
ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
messageSource.setBasename("classpath:messages");
messageSource.setCacheSeconds(10);
messageSource.setDefaultEncoding("UTF-8");
return messageSource;
}
}

消息属性

axipay.failure.account.already.exist=Sorry, the biller account number is already added.

在我班

public Payee myPayees{
//Asking the property into a variable 
private static final String PAYEE_ACCOUNT_ALREADY_EXIST = "axipay.failure.account.already.exist";
@Autowired
Environment environment;
public void myMethod(){
String message = getEnvironment().getProperty(PAYEE_ACCOUNT_ALREADY_EXIST);
}
}

Answer 1

您可以使用spring提供的MessageSourceBeanhttps://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/MessageSource.html

@Autowired
private MessageSource messageSource;
//use this method to get message
public String getMessage(){        
return messageSource.getMessage("axipay.failure.account.already.exist", null, new Locale("en"));
}