Spring Rest 在部署时找不到 JPARepository-6ren

Spring Rest 在部署时找不到 JPARepository

转载作者：行者123 更新时间：2023-11-28 22:17:20

我是 Java 的新手，对于一个大学项目，我必须设置一个 Restful 服务。所以我设法用 Intellij Idea IDE 做了一个非常简单的 hello world 服务。后来我想添加一个数据库并设置一些部署选项。所以我设置了我自己的 Tomcat 服务器，并且在每次构建时我都将我的 .war 部署到 Tomcat。

所以我添加了我的数据库，实现了存储库、 Controller 和模型，当我调试时一切正常。无论何时将它部署到我的 tomcat 上，我都会收到以下错误。

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.4.2.RELEASE)

2016-11-20 11:23:47.227  INFO 15920 --- [ost-startStop-1] g.d.t.backend.ServletInitializer         : Starting ServletInitializer on Atlantis with PID 15920 (started by Nikolas in K:\Site\Apache Tomcat 8.5.8\bin)
2016-11-20 11:23:47.228  INFO 15920 --- [ost-startStop-1] g.d.t.backend.ServletInitializer         : No active profile set, falling back to default profiles: default
2016-11-20 11:23:47.295  INFO 15920 --- [ost-startStop-1] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@26f0ef9e: startup date [Sun Nov 20 11:23:47 EET 2016]; root of context hierarchy
2016-11-20 11:23:48.531  INFO 15920 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1235 ms
2016-11-20 11:23:49.240  INFO 15920 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2016-11-20 11:23:49.241  INFO 15920 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'errorPageFilter' to: [/*]
2016-11-20 11:23:49.244  INFO 15920 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-11-20 11:23:49.244  INFO 15920 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-11-20 11:23:49.244  INFO 15920 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-11-20 11:23:49.245  INFO 15920 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2016-11-20 11:23:49.284  WARN 15920 --- [ost-startStop-1] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Failed to introspect bean class [gr.devian.talosquests.backend.UserController] for lookup method metadata: could not find class that it depends on; nested exception is java.lang.NoClassDefFoundError: org/springframework/data/repository/CrudRepository
2016-11-20 11:23:49.292  INFO 15920 --- [ost-startStop-1] utoConfigurationReportLoggingInitializer :

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2016-11-20 11:23:49.298 ERROR 15920 --- [ost-startStop-1] o.s.boot.SpringApplication               : Application startup failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Failed to introspect bean class [gr.devian.talosquests.backend.UserController] for lookup method metadata: could not find class that it depends on; nested exception is java.lang.NoClassDefFoundError: org/springframework/data/repository/CrudRepository
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:269) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1073) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:512) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:754) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) ~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) ~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
        at org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:151) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
        at org.springframework.boot.web.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:131) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
        at org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:86) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
        at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169) [spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5178) [catalina.jar:8.5.8]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:8.5.8]
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752) [catalina.jar:8.5.8]
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728) [catalina.jar:8.5.8]
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734) [catalina.jar:8.5.8]
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952) [catalina.jar:8.5.8]
        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823) [catalina.jar:8.5.8]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_91]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_91]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
Caused by: java.lang.NoClassDefFoundError: org/springframework/data/repository/CrudRepository
        at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_91]
        at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_91]
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_91]
        at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2268) ~[catalina.jar:8.5.8]
        at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:811) ~[catalina.jar:8.5.8]
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1254) ~[catalina.jar:8.5.8]
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119) ~[catalina.jar:8.5.8]
        at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_91]
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_91]
        at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_91]
        at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:613) ~[spring-core-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524) ~[spring-core-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510) ~[spring-core-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:247) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
        ... 31 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.data.repository.CrudRepository
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285) ~[catalina.jar:8.5.8]
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119) ~[catalina.jar:8.5.8]
        ... 45 common frames omitted

20-Nov-2016 11:23:49.300 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Failed to introspect bean class [gr.devian.talosquests.backend.UserController] for lookup method metadata: could not find class that it depends on; nested exception is java.lang.NoClassDefFoundError: org/springframework/data/repository/CrudRepository
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:269)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1073)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1046)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:512)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:754)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
        at org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:151)
        at org.springframework.boot.web.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:131)
        at org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:86)
        at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5178)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 10 more
Caused by: java.lang.NoClassDefFoundError: org/springframework/data/repository/CrudRepository
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2268)
        at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:811)
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1254)
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
        at java.lang.Class.getDeclaredMethods(Class.java:1975)
        at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:613)
        at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524)
        at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:247)
        ... 31 more
Caused by: java.lang.ClassNotFoundException: org.springframework.data.repository.CrudRepository
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1285)
        at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1119)
        ... 45 more

20-Nov-2016 11:23:49.302 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive K:\Site\Apache Tomcat 8.5.8\webapps\ROOT.war
 java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:756)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:952)
        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1823)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

20-Nov-2016 11:23:49.303 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive K:\Site\Apache Tomcat 8.5.8\webapps\ROOT.war has finished in 4,956 ms
20-Nov-2016 11:23:49.305 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory K:\Site\Apache Tomcat 8.5.8\webapps\docs
20-Nov-2016 11:23:49.369 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory K:\Site\Apache Tomcat 8.5.8\webapps\docs has finished in 64 ms
20-Nov-2016 11:23:49.370 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory K:\Site\Apache Tomcat 8.5.8\webapps\examples
20-Nov-2016 11:23:49.608 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory K:\Site\Apache Tomcat 8.5.8\webapps\examples has finished in 238 ms
20-Nov-2016 11:23:49.609 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory K:\Site\Apache Tomcat 8.5.8\webapps\host-manager
20-Nov-2016 11:23:49.630 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory K:\Site\Apache Tomcat 8.5.8\webapps\host-manager has finished in 21 ms
20-Nov-2016 11:23:49.630 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory K:\Site\Apache Tomcat 8.5.8\webapps\manager
20-Nov-2016 11:23:49.655 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory K:\Site\Apache Tomcat 8.5.8\webapps\manager has finished in 25 ms
20-Nov-2016 11:23:49.660 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler [http-nio-9090]
20-Nov-2016 11:23:49.669 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler [ajp-nio-8009]
20-Nov-2016 11:23:49.670 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 5360 ms

在我的 IDE 上调试时它运行正确。有谁知道我为什么会遇到这个问题？

pom.xml

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

编辑:在我的 IDE 上它也运行在 Tomcat 上

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.4.2.RELEASE)

2016-11-20 11:14:50.013  INFO 20380 --- [           main] g.d.t.b.TalosQuestsBackendApplication    : Starting TalosQuestsBackendApplication on Atlantis with PID 20380 (C:\Users\Nikolas\IdeaProjects\TalosQuests\TalosQuestsBackend\target\classes started by Nikolas in C:\Users\Nikolas\IdeaProjects\TalosQuests\TalosQuestsBackend)
2016-11-20 11:14:50.015  INFO 20380 --- [           main] g.d.t.b.TalosQuestsBackendApplication    : No active profile set, falling back to default profiles: default
2016-11-20 11:14:50.056  INFO 20380 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@13b84b8: startup date [Sun Nov 20 11:14:50 EET 2016]; root of context hierarchy
2016-11-20 11:14:51.161  INFO 20380 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$9f712e35] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2016-11-20 11:14:51.552  INFO 20380 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2016-11-20 11:14:51.562  INFO 20380 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2016-11-20 11:14:51.562  INFO 20380 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.6
2016-11-20 11:14:51.645  INFO 20380 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2016-11-20 11:14:51.645  INFO 20380 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1592 ms
2016-11-20 11:14:51.778  INFO 20380 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2016-11-20 11:14:51.780  INFO 20380 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-11-20 11:14:51.781  INFO 20380 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-11-20 11:14:51.781  INFO 20380 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-11-20 11:14:51.781  INFO 20380 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2016-11-20 11:14:51.976  INFO 20380 --- [           main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2016-11-20 11:14:51.990  INFO 20380 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
    name: default
    ...]
2016-11-20 11:14:52.055  INFO 20380 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.0.11.Final}
2016-11-20 11:14:52.057  INFO 20380 --- [           main] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2016-11-20 11:14:52.060  INFO 20380 --- [           main] org.hibernate.cfg.Environment            : HHH000021: Bytecode provider name : javassist
2016-11-20 11:14:52.095  INFO 20380 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2016-11-20 11:14:52.403  INFO 20380 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2016-11-20 11:14:52.773  INFO 20380 --- [           main] org.hibernate.tool.hbm2ddl.SchemaUpdate  : HHH000228: Running hbm2ddl schema update
2016-11-20 11:14:52.930  INFO 20380 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2016-11-20 11:14:53.332  INFO 20380 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@13b84b8: startup date [Sun Nov 20 11:14:50 EET 2016]; root of context hierarchy

最佳答案

你的异常的根本原因是这个:

Caused by: java.lang.ClassNotFoundException: org.springframework.data.repository.CrudRepository

因此包含此类的 jar 不在您的类路径中。

为了找出为什么会这样，我们需要更多信息来了解您所说的“部署在我的 tomcat 上”是什么意思。你到底在做什么？

您也可以从另一端进行调试:您可能正在部署某种 jar 或 war。检查里面有什么。您可能会发现它不包含 spring-data-commons.jar，尽管它应该包含。如果这是真的，问题就变成了:

只缺少那个或很少的几个 jar ？
或者除了带有您自己的代码的 jar 之外基本上都丢失了？

注意:您可以解压 jar 和 war 文件，因为它们只是 zip 文件

关于Spring Rest 在部署时找不到 JPARepository，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40702477/

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Spring Rest 在部署时找不到 JPARepository