spring-data-cassandra-2.0.0.RELEASE + spring-boot-starter-we

Question

我使用最新的可用版本的spring-data-cassandra，它是2.0.0.RELEASE和最新版本的spring-boot-starter-web - 1.5.7.RELEASE

  <dependencies>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-cassandra</artifactId>
        <version>2.0.0.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>1.5.7.RELEASE</version>
    </dependency>
</dependencies>

我可以毫无问题地构建项目，但是应用程序不会以以下异常启动：

java.lang.IllegalStateException: Error processing condition on org.springframework.boot.autoconfigure.data.cassandra.CassandraDataAutoConfiguration.cassandraMapping
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:64) ~[spring-boot-autoconfigure-1.5.7.RELEASE.jar:1.5.7.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:109) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:179) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:141) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:328) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:271) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:693) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE]
at Application.main(Application.java:8) [classes/:na]

根源：

Caused by: java.lang.ClassNotFoundException: org.springframework.data.cassandra.mapping.CassandraMappingContext
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_144]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_144]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_144]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_144]
at org.springframework.util.ClassUtils.forName(ClassUtils.java:255) ~[spring-core-5.0.0.RELEASE.jar:5.0.0.RELEASE]
at org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanSearchSpec.addDeducedBeanTypeForBeanMethod(OnBeanCondition.java:356) ~[spring-boot-autoconfigure-1.5.7.RELEASE.jar:1.5.7.RELEASE]
... 21 common frames omitted

看起来问题出在 spring-boot-autoconfigure-1.5.7.RELEASE 中，如果我将 spring-boot-starter-web 更新到 2.0.0.M5：

<repositories>
    <repository>
        <id>spring-libs-snapshot</id>
        <url>https://repo.spring.io/libs-snapshot</url>
    </repository>
</repositories>
 <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>2.0.0.M5</version>
 </dependency>

然后应用程序启动，没有任何错误。

有没有办法使用spring-data-cassandra的最新可用版本以及spring-boot-starter-web，或者我应该等待spring-boot-starter-web：2.0.0的GA

？

提前谢谢你！

Answer 1

Spring Data Cassandra 的最新版本是 2.0.0，它与 Spring Boot 1.x 不兼容。您需要将依赖项升级到 Spring Boot 2.0 M5。

Answer 2

嗨，

我遇到了同样的问题，所以我在这里做了什么，首先，我在 cassandra 中连接多个键空间并使用具有弹簧启动启动器 2.0.0.发布我删除了弹簧数据 cassandra 的版本声明，但它的托管版本是 2.0.5.RELEASE，所以你可以检查一下。第二次，当org.springframework.data.cassandra.config.java.AbstractCassandraConfiguration之前导入，在 2.0.0.RELEASE 中将其移至org.springframework.data.cassandra.config.AbstractCassandraConfiguration所以请检查一下