如何在使用 Spring 3.2 MVC 应用程序的基于 java 的配置时读取属性文件的值?我的配置类扩展了 WebMvcConfigurationAdapter...
@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.foo.bara" , excludeFilters = { @Filter( Configuration.class ) } )
@PropertySource( {"classpath:abc.properties", "classpath:persistence.properties" } )
public class MokaWebAppContext extends WebMvcConfigurerAdapter {
@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
PropertySourcesPlaceholderConfigurer pspc = new PropertySourcesPlaceholderConfigurer();
Resource[] resources = new ClassPathResource[ ] {
new ClassPathResource( "persistence.properties" ),
new ClassPathResource( "abc.properties" )
};
pspc.setLocations( resources );
pspc.setIgnoreUnresolvablePlaceholders( true );
return pspc;
}
...
}
尝试访问此资源时
@Value('${persistence.db.driverClass}') private String driverClassName;
${persistence.db.driverClass} 无法识别。
从@Configuration 类的属性文件中读取值我需要做什么?我想我不能在这个地方使用环境实例,可以吗?