错误:必须在 Spring 引导中指定@ConditionalOnProperty的名称或值属性

Question

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

聚 甲醛：

<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>

应用类：

@Configuration
@ComponentScan
@EnableAutoConfiguration
@Import({SearchContext.class, WebContext.class })
public class Application {
public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
  }
}

日志异常：

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

如果我使用旧版本运行，一切都很好，但是升级到 1.2.5 时，我看到了上面的错误。如何解决此异常，非常感谢！

Answer 1

尝试检查在 GitHub Spring 启动问题列表中打开的相关问题。

似乎您需要一个较新版本的 Spring 框架，如 Spring Boot 1.2 发行说明中所述：

Spring Boot 1.2 需要 Spring Framework 4.1.5 或更高版本，而不是 与 Spring Framework 4.0 兼容。