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[英]showing error on pom.xml while building spring application on STS
[英]Simple spring-boot application with pom.xml and app.java is showing build failed error
我是Java新手,我正在尝试一个示例Spring Boot应用程序。 我正在使用eclipse IDE和Java 8.使用maven-archetype-quickstart原型创建了一个Maven项目。 在pom.xml中
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo</groupId>
<artifactId>StormpathSpringBoot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>StormpathSpringBoot</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.3.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
</dependencies>
</project>
在App.java中
package com.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class App
{
public static void main( String[] args )
{
SpringApplication.run(App.class, args);
}
}
然后我运行应用程序RunAs - > Maven Build goal-> spring-boot:run
不知道这是运行此应用程序的正确方法
我收到了错误
2017-08-03 02:33:19.294 INFO 5124 --- [ main] com.demo.App : Starting App on C4968397007 with PID 5124 (C:\Users\dev3\WS_SpringBoot\StormpathSpringBoot\target\classes started by dev3 in C:\Users\dev3\WS_SpringBoot\StormpathSpringBoot)
2017-08-03 02:33:19.297 INFO 5124 --- [ main] com.demo.App : No active profile set, falling back to default profiles: default
2017-08-03 02:33:19.518 INFO 5124 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@39dcb4f0: startup date [Thu Aug 03 02:33:19 EDT 2017]; root of context hierarchy
2017-08-03 02:33:21.121 INFO 5124 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'httpRequestHandlerAdapter' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration; factoryMethodName=httpRequestHandlerAdapter; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.data.rest.webmvc.config.RepositoryRestMvcConfiguration; factoryMethodName=httpRequestHandlerAdapter; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]]
2017-08-03 02:33:21.950 INFO 5124 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$fcd1a082] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2017-08-03 02:33:22.354 INFO 5124 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-08-03 02:33:22.369 INFO 5124 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2017-08-03 02:33:22.370 INFO 5124 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.14
2017-08-03 02:33:22.471 INFO 5124 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2017-08-03 02:33:22.472 INFO 5124 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2954 ms
2017-08-03 02:33:22.790 INFO 5124 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2017-08-03 02:33:22.794 INFO 5124 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-08-03 02:33:22.794 INFO 5124 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-08-03 02:33:22.794 INFO 5124 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-08-03 02:33:22.795 INFO 5124 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2017-08-03 02:33:23.157 WARN 5124 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'profileController' defined in URL [jar:file:/C:/Users/dev3/.m2/repository/org/springframework/data/spring-data-rest-webmvc/2.6.3.RELEASE/spring-data-rest-webmvc-2.6.3.RELEASE.jar!/org/springframework/data/rest/webmvc/ProfileController.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceMappings' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.rest.core.mapping.RepositoryResourceMappings]: Factory method 'resourceMappings' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'persistentEntities' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.mapping.context.PersistentEntities]: Factory method 'persistentEntities' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceMappings' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.rest.core.mapping.RepositoryResourceMappings]: Factory method 'resourceMappings' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'persistentEntities' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.mapping.context.PersistentEntities]: Factory method 'persistentEntities' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.rest.core.mapping.RepositoryResourceMappings]: Factory method 'resourceMappings' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'persistentEntities' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.mapping.context.PersistentEntities]: Factory method 'persistentEntities' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'persistentEntities' defined in class path resource [org/springframework/data/rest/webmvc/config/RepositoryRestMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.mapping.context.PersistentEntities]: Factory method 'persistentEntities' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.mapping.context.PersistentEntities]: Factory method 'persistentEntities' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
Caused by: java.lang.IllegalArgumentException: At least one JPA metamodel must be present!
要运行你可以:在eclipse中右键单击项目 - >运行为 - > Java应用程序
我使用基于Eclipse的IDE STS - 它通常更适合Spring,因为这里的初始配置是最新的并且经过了更好的测试
错误表明没有定义JPA映射。 您必须定义它们或从POM中删除depedndencies
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
您将spring-boot-starter-data-rest
包含为依赖项。 所以有一个默认控制器( ProfileController
),它在Spring上下文启动时扫描。
这个控制器依赖于其他bean,其中一个( jpaMappingContext
)需要一个JPA配置。
只需删除此依赖项,它应该没问题。
正如评论/答案中已经提到的那样 - 您已经为Spring JPA添加了依赖项,但没有在项目中添加任何实体。 你可以删除它并尝试。
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency>
启动spring-boot项目的最佳位置可能是使用spring initializr。 https://start.spring.io/
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