Error: The name or value attribute of @ConditionalOnProperty must be specified in Spring Boot

Question

我正在使用 Spring Boot with Solr。当我在 Pom maven 上配置时，我收到了意外的异常：

pom:

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.2.5.RELEASE</version>
</parent>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
        <exclusions>
            <exclusion>
                <artifactId>hibernate-entitymanager</artifactId>
                <groupId>org.hibernate</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <!-- SOLR -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-solr</artifactId>
        <version>${spring-data-solr.verion}</version>
    </dependency>

    <!-- JSON -->
    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>1.9.11</version>
    </dependency>

    <!-- WEB -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <version>8.0.27</version>
    </dependency>   
    <!-- Hibernate 4 dependencies -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>${hibernate.version}</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-c3p0</artifactId>
        <version>${hibernate.version}</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-commons -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-commons</artifactId>
        <version>1.12.5.RELEASE</version>
    </dependency>       
</dependencies>

申请class：

@Configuration
@ComponentScan
@EnableAutoConfiguration
@Import({SearchContext.class, WebContext.class })
public class Application {

public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
  }
}

记录异常：

Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: Failed to load bean class: ; nested exception is java.lang.IllegalStateException: The name or value attribute of @ConditionalOnProperty must be specified
at org.springframework.context.annotation.ConfigurationClassParser.processDeferredImportSelectors(ConfigurationClassParser.java:390)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:162)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:299)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:254)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:609)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:311)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:909)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:898)
at com.totoroads.data.solr.showcase.Application.main(Application.java:31)
Caused by: java.lang.IllegalStateException: The name or value attribute of @ConditionalOnProperty must be specified
at org.springframework.util.Assert.state(Assert.java:385)
at org.springframework.boot.autoconfigure.condition.OnPropertyCondition.getNames(OnPropertyCondition.java:101)
at org.springframework.boot.autoconfigure.condition.OnPropertyCondition.getMatchOutcome(OnPropertyCondition.java:55)
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:44)
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:92)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:187)
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:433)
at org.springframework.context.annotation.ConfigurationClassParser.processDeferredImportSelectors(ConfigurationClassParser.java:387)
... 13 more

如果我运行使用旧版本，一切都很好，但是当升级到 1.2.5 时，我看到上面的错误。如何解决这个异常，非常感谢！

Answer 1

尝试检查 GitHub Spring-boot issues list 上打开的相关问题。

您似乎需要更新版本的 Spring 框架，如 Spring Boot 1.2 Release Note 中所述：

Spring Boot 1.2 requires Spring Framework 4.1.5 or later and is not compatible with Spring Framework 4.0.

Error: The name or value attribute of @ConditionalOnProperty must be specified in Spring Boot

Error: The name or value attribute of @ConditionalOnProperty must be specified in Spring Boot

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