Accessing the application.conf properties from java class with Play! 2.0

I want to add an object to the Global scope, and in order to construct it I need to pass it a path to a file. I don't want to hard code the file path in the source, and so I want to get that path from the application.conf.

The problem is that I don't know how to access these properties from the java class. I tried this:

Configuration.root().getString("file.path")

But it ends with a NullPointerException.

Am I wrong in assuming that there's a global Configuration instance that I can use? Thanks.

Try Play.application().configuration().getString("your.key")

As noted in the comment (nico_ekito), please use play.Play and not play.api.Play. play.api.Play is for scala controllers (see comment by Marcus biesior Biesioroff)

Additionally, play uses https://github.com/typesafehub/config under the hood so it can also provide some insights.

Even if it seems simple, here is the scala way to get properties from configuration file :

Play 2.0 and 2.1 :

import play.api.Play.current
...
Play.application.configuration.getString("your.key")

Play 2.2 and +

import play.api.Play.current
...
current.configuration.getString("your.key")

Using Typesafe config

import com.typesafe.config.ConfigFactory
...
ConfigFactory.load().getString("your.key");

From Play 2.4 and + it is better to use dependency injection to access Configurations:

import play.Configuration;
import javax.inject.Inject;


@Inject
private Configuration configuration;

...

String value = configuration.getString("your.key");

Since Play 2 uses the Typesafe config library, I accessed my vars in application.conf like this :

ConfigFactory.load().getString("my.var");

In the play java is:

import play.Play;
...
Play.application().configuration().getString("key")

Use as following (Tested in Play 1.2.5)

${play.configuration.getProperty('my.var')}

where my.var should be specified in application.conf file

As a reference to access it from the template (for play < 2)

play.configuration['your.key']

As folks have mentioned, Play.application.configuration no longer exists.

In Play Scala 2.3.x, to read a value from conf/application.conf, you can do the following:

import play.api.Play.current
...
current.configuration.getString("key")

In Play 1.2.x

import play.Play;
...


String version  = Play.configuration.getProperty("application.version.number", "1.1.1");

where the second parameter is the default value

Import this

import com.typesafe.config.Config;

and write the below lines

private Config config;
this.config = ConfigProvider.config();
String value = this.config.getString("fieldFromConfigFile");

import play.Play; String myVal = Play.configuration.getProperty("your.key").toString();

i use this in my app and it works

Dont forget to import play.Play. Hope it'll gives you help

Starting from version 2.5 please use play.Application class which should be injected and then application.config().getString("your.property.here")

For Java Playframework:

In Application.conf, you can put something like that:

> email="[email protected]"

some class:

> import play.Play; > > String email = Play.application().configuration().getString("key") // key ->email