how to read properties file in spring project?

Question

Before post this Question, I google to get Properties from Spring project(Its NOT web-based project). I am confused as every one are talking about application-context.xml an

Answer 1

You can create an XML based application context like:

ApplicationContext ctx = new ClassPathXmlApplicationContext("conf/appContext.xml");

if the xml file is located on your class path. Alternatively, you can use a file on the file system:

ApplicationContext ctx = new FileSystemXmlApplicationContext("conf/appContext.xml");

More information is available in the Spring reference docs. You should also register a shutdown hook to ensure graceful shutdown:

 ctx.registerShutdownHook();

Next, you can use the PropertyPlaceHolderConfigurer to extract the properties from a '.properties' file and inject them into your beans:

Lastly, if you prefer annotation based config, you can use the @Value annotation to inject properties into you beans:

@Component
public class SomeBean {

    @Value("${jdbc.url}") 
    private String jdbcUrl;
}