PropertySourcesPlaceholderConfigurer无法在spring mvc中工作

Question

我无法读取application.properties文件，但我能够阅读messages_en_IN.properties文件。

我正在使用maven项目，我的两个属性文件都在资源文件夹

中

以下是我的配置

public class WebAppConfig extends WebMvcConfigurerAdapter {

// resource bundle configuration
@Bean
public ReloadableResourceBundleMessageSource messageSource(){
    ReloadableResourceBundleMessageSource messageSource=new ReloadableResourceBundleMessageSource();
    String[] resources= {"classpath:messages"};
    messageSource.setBasenames(resources);
    return messageSource;
}

@Bean
public LocaleResolver localeResolver() {
    final CookieLocaleResolver ret = new CookieLocaleResolver();
    ret.setDefaultLocale(new Locale("en_IN"));
    return ret;
}

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

// properties file configuration
@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
    PropertySourcesPlaceholderConfigurer propertySources = new PropertySourcesPlaceholderConfigurer();
    org.springframework.core.io.Resource[] resources = new ClassPathResource[ ] { new ClassPathResource( "application.properties" ) };
    propertySources.setLocations((org.springframework.core.io.Resource[]) resources);
    return propertySources;
}
}

JSP：读取属性

  

spring：消息代码=＆＃34; label.maxlength＆＃34;

异常：

No message found under code 'label.maxlength' for locale 'en_in'

label.maxlength在application.properties中，但是如果我尝试从messages_en_IN.properties中读取内容，那么它工作正常。为什么它不是从application.properties读取

由于