@Bean
public static PropertyPlaceholderConfigurer propertyConfigurer() throws IOException {
PropertyPlaceholderConfigurer props = new PropertyPlaceholderConfigurer();
props.setLocations(new Resource[] {new ClassPathResource("environment.properties")});
props.setSearchSystemEnvironment(true);
props.setSystemPropertiesMode(PropertyPlaceholderConfigurer.SYSTEM_PROPERTIES_MODE_OVERRIDE);
return props;
}
