How to get the environment variable from local using @Value in spring?

Question

I set a key inside my environment (in bash_profile file) called 'FLAG'(the value is 'true'). I'm trying to get his value by using annotation Value. so far i tried to do this:

@Value("\${FLAG}")
 private lateinit var process_flag: String

but no success, I'm getting an error:

java.lang.IllegalArgumentException: Could not resolve placeholder 'FLAG' in string value "${FLAG}"

*should I add any import\annotation to the class?

How are you running the code? Is it running as you, in a process where your .bash_profile file was applied? — Andreas
– Andreas, Commented Nov 10, 2017 at 19:43
I'm using intellij so i guess its running on my local. i guess it doesn't know where is the bash_profile is..im using mac — user8906123
– user8906123, Commented Nov 10, 2017 at 19:45
See this question for how to verify the environment variables of another process: Environment variables of a running process on Unix? — Andreas
– Andreas, Commented Nov 10, 2017 at 19:47

Ash_s94 · Accepted Answer · 2017-11-10 19:51:18Z

2

Try providing a default value in case the variable is not defined:

@Value("${some_property:default_value}")
private String key;

Otherwise you'll get an exception whenever some_property is not defined.

If that doesn't work you can also try:

@Component
public class SomeClass {

    @Value("#{environment.SOME_KEY_PROPERTY}")
    private String key;

    ....
}

answered Nov 10, 2017 at 19:51

Ash_s94

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user8906123 · Accepted Answer · 2017-11-13 13:11:54Z

2

Solution: maybe it will sound funny but the solution for me was to turn off and on the intellij, of course after declare the environment variable.

answered Nov 13, 2017 at 13:11

user8906123

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Rishi · Accepted Answer · 2017-11-10 19:53:31Z

0

Spring cannot see what is inside bash_profile file it rather gives access to Jvm system properties. Try below:

java .... -DFLAG=${FLAG}

"DFLAG" is jvm system property and "flag" is the value in bash_profile file.

answered Nov 10, 2017 at 19:53

Rishi

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Yuriy Tsarkov · Accepted Answer · 2017-11-11 00:07:42Z

0

For the custom source locations try to add this annotation into your config:

@PropertySource("classpath:{whatever_you_want_path}")

answered Nov 11, 2017 at 0:07

Yuriy Tsarkov

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