Get the values from the properties file at runtime based on the input - java Spring
15,743
Solution 1
There is no way to do what you are describing using @Value, but you can do this, which is the same thing pretty much:
package com.acme.example;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;
@Component
public class Example {
private @Autowired Environment environment;
public String getFlowerColor(String runTimeFlower) {
return environment.resolvePlaceholders("${" + runTimeFlower + "}");
}
}
Solution 2
The PropertySource
s which Spring reads from won't know the value of the flower
variable, so @Value
won't work.
Inject a Properties
object or a Map
. Then just look up the colour using the property name or key, respectively, e.g.
<util:properties id="appProperties" location="classpath:app.properties" />
...
@Autowired
@Qualifier("appProperties")
private Properties appProperties;
...
appProperties.getProperty(flower);
Author by
pinky
Updated on July 22, 2022Comments
-
pinky almost 2 years
I have my colour.roperties file as
rose = red lily = white jasmine = pink
I need to get the value for colour as
String flower = runTimeFlower; @Value("${flower}) String colour;
where flower value we will get at runtime. How can I do this in java Spring. I need to get a single value (from among 50 values defined in the properties file )at runtime based on the user input. If i cannot use @Value , Could you tell me other ways to handle this please?