Access Property Values in Spring Boot

Photo by Miltiadis Fragkidis on Unsplash

You can access property values quickly from the /resources/application.property file simply by using the @Value annotation.

@Value allows you to quickly connect your code to a property value.

In your application.properties file just add a new value as follows:

server.port=8100

my.value=Hello World

Here we have added a new property called my.value and set the value to Hello World. Note that we do not need quotes for strings.

This is the same file that we set properties like server.port to change the port on Spring Boot listens on for Http end points.

Now that we have the value in the properties file can access in our code as follows:

public class ValueRestController {
    
    @Value("${my.value}")
    private String myValue;

    @GetMapping("/myvalue")
    public String myValue() {
        log.info("myValue=" + myValue);
        return myValue;
    }
}

Now we have the value “Hello World” injected into the String myValue and accessible in the application.

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