Hands-On Enterprise Java Microservices with Eclipse MicroProfile

The Config object

The org.eclipse.microprofile.config.Config interface is the entry point to retrieve configuration in a Java application.

There are two ways to get an instance of Config:

1. The first (and preferred) way is to use CDI to inject it into the code:

@Inject
private Config config;

2. The second way is to call the static method, org.eclipse.microprofile.config.ConfigProvider#getConfig(), to obtain an instance of Config:

Config config = ConfigProvider.getConfig();

The Config interface provides two methods to retrieve properties:

• getValue(String propertyName, Class propertyType): This method throws a runtime exception if the property is not present in the configuration. This method must be used only for mandatory configuration ...