CODEWITHSUNDEEP
javaspringspring-boot
user3475366
user3475366

Reputation: 163

How to create config class using Spring and share data across the whole code?

I need to create sth like Shared class, which I can use in the following way:

Shared.getProperty(key);

I tried to use Environment object, but it is always null. Where should it be specified and how? I use .xml for my bean configuration. I also have application.properties, where I want to retrieve data from.

Upvotes: 0

Views: 180

Answers (3)

pgardunoc
pgardunoc

Reputation: 331

The way I do it is using defining the values in application.properties and then creating a Configuration class for example:

Define constants in application.properties

app.email_subject =My app Registration
app.email_from =Some person

An annotated class

@Configuration    
@ConfigurationProperties(prefix = "app")
public class GlobalProperties {

    @Value("email_subject")
    private String emailSubject;
    @Value("email_from")
    private String emailFrom;

    // getters and setters
}

You can use this class anywhere you want like this:

@Service
public class SomeService {
    @Autowired
    private GlobalProperties globalProperties;

    public someMethod() {
        System.out.println(globalProperties.getEmailFrom());
    }
}

Upvotes: 0

Bor Laze
Bor Laze

Reputation: 2516

// Shared.java
@Component
@ConfigurationProperties("prefix.for.application.properties")
public class Shared {
    private String str;

    // getters, setters
}

// application.properties
prefix.for.application.properties.str=STR

// other code
@Autovired
private Shared shared;

shared.getStr();

Upvotes: 1

vavasthi
vavasthi

Reputation: 952

The best way is to have properties defined in application.properties file and then you can access these properties using @Value annotation.

Upvotes: 0

Related Questions