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springannotations

Evaluating Spring @Value annotation as primitive boolean

I have a Spring @Configuration annotated class, MappingsClientConfig, with a boolean field as:

 @Value("${mappings.enabled:true}")
 private boolean mappingsEnabled;

This class is imported into another Spring annotated class like so :

@Configuration
@Import(MappingsClientConfig.class)
public class LookupManagerConfig {

When instantiating the class via Spring context in a test-case, the container is unable to parse the string into the boolean field mappingsEnabled and I get:

Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private boolean com.barcap.tcw.mappings.economic.client.config.EconomicMappingsClientConfig.economicMappingsEnabled; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'boolean'; nested exception is java.lang.IllegalArgumentException: Invalid boolean value [${mappings.enabled:true}]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:502)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:282)
    ... 138 more
Caused by: org.springframework.beans.TypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'boolean'; nested exception is java.lang.IllegalArgumentException: Invalid boolean value [${mappings.enabled:true}]
    at org.springframework.beans.SimpleTypeConverter.convertIfNecessary(SimpleTypeConverter.java:61)
    at org.springframework.beans.SimpleTypeConverter.convertIfNecessary(SimpleTypeConverter.java:43)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:718)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:703)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:474)
    ... 140 more
Caused by: java.lang.IllegalArgumentException: Invalid boolean value [${mappings.enabled:true}]
    at org.springframework.beans.propertyeditors.CustomBooleanEditor.setAsText(CustomBooleanEditor.java:124)
    at org.springframework.beans.TypeConverterDelegate.doConvertTextValue(TypeConverterDelegate.java:416)
    at org.springframework.beans.TypeConverterDelegate.doConvertValue(TypeConverterDelegate.java:388)
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:157)
    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:93)
    at org.springframework.beans.SimpleTypeConverter.convertIfNecessary(SimpleTypeConverter.java:49)
    ... 144 more

Any leads as to what am I missing?

Solution

  • Its an old thread but if you still want to inject Non-String values using @Value Spring annotation, do this:

    @Value("#{new Boolean('${item.priceFactor}')}")
private Boolean itemFactorBoolean;

@Value("#{new Integer('${item.priceFactor}')}")
private Integer itemFactorInteger;

    Works for me on Spring boot 1.5.9 with Java 8.