Spring @Value is not parsed correctly

Question

I have a dependency jar which has values configured in yaml as below:

app:
  settings:
    value1 : true

And the java code is

public class LoadConfig {

    @Value("${app.settings.value1}")
    private Boolean value1;
}

While deploying the spring boot app, in runtime, the dependency jar values are not parsed and below issue occurred.

org.springframework.beans.factory.UnsatisfiedDependencyException: 
    Error creating bean with name 'LoadConfig':
    Unsatisfied dependency expressed through field 'value1'; nested exception is 
    org.springframework.beans.TypeMismatchException:**Failed to convert value of type 'java.lang.String' to required type 'java.lang.Boolean'**; nested 
    exception is java.lang.IllegalArgumentException: Invalid boolean value [**${app.settings.value1}**].

The issue is instead of value, path(app.settings.value1) is getting converted to Boolean and the error is thrown.

maven project structure is

MyJar --> app.jar
    |-> dependency.jar

For non String values , you can try @Value("#{new Boolean('${app.settings.value1}") — Raveesh Sharma, Dec 23 '19 at 07:23
@Value("#{new Boolean('${app.settings.value1:true}") OR @Value("'${app.settings.value1}") private boolean value1 ; //Note the use of primitive — Raveesh Sharma, Dec 23 '19 at 07:25
the link which you have shared trying to convert 1 to boolean, where as in my case it is not reading the value and It is trying to convert whatever present inside @Value("") . — Arunkumar, Dec 23 '19 at 07:31
As a note, `@ConfigurationProperties` classes are almost always preferable to `@Value` in Boot. — chrylis -cautiouslyoptimistic-, Dec 23 '19 at 07:49
This should work as posted in this question. I suspect something varies in your real code, and your edits did not preserve the difference. — chrylis -cautiouslyoptimistic-, Dec 23 '19 at 07:51
@user8814998 could you please show us the imports from the `LoadConfig` file? — xenteros, Dec 23 '19 at 10:32
@xenteros, the imports are
import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Configuration; — Arunkumar, Dec 24 '19 at 07:02

lczapski · Answer 1 · 2019-12-23T09:02:41.227

0

Base on this you can try:

@Value("#{new Boolean('${app.settings.value1}')}")
private Boolean value1;

But the real problem is here: exception is java.lang.IllegalArgumentException: Invalid boolean value [**${app.settings.value1}**]. It pass not the value but the label, that cannot be parsed as boolean.

edited Dec 23 '19 at 09:02

answered Dec 23 '19 at 08:38

lczapski

4,026
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score -1 · Answer 2 · edited Dec 23 '19 at 10:26

-1

Please try this code:

@Value("${app.settings.value1}")
private Boolean value1;

edited Dec 23 '19 at 10:26

Alexander van Oostenrijk

4,644
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answered Dec 23 '19 at 07:23

Yogesh More

43
4

score -1 · Answer 3 · answered Dec 23 '19 at 07:27

-1

Also it can be primitive:

@Value("${app.settings.value1:false}")
private boolean value1;

answered Dec 23 '19 at 07:27

Dmitry Ionash

763
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11

score -1 · Answer 4 · answered Dec 23 '19 at 07:30

You can try the following ways:

//If you need a Boolean object
@Value("#{new Boolean('${app.settings.value1}")
private Boolean value1;

OR

//If you need a primitive boolean
@Value("${app.settings.value1:true}")
private boolean value1;

Please check boolean values in Spring application.properties file?

Spring @Value is not parsed correctly

4 Answers4