Jhipster：已添加实体，应用程序启动时 Mapper 对象出现异常

Question

我正在使用 Jhipster 生成器大师版。我添加了一个带有 yo jhipster:entity collaborateur.
的实体一切都好运行
我已经将项目导入到 Eclipse 中。

当我运行我的应用程序出现此错误时：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'collaborateurResource': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.myapp.rhapp.web.rest.mapper.CollaborateurMapper com.myapp.rhapp.web.rest.CollaborateurResource.collaborateurMapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.myapp.rhapp.web.rest.mapper.CollaborateurMapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.inject.Inject()}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory.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:772)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766)
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
    at com.myapp.rhapp.rhappApp.main(rhappApp.java:70)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)  

Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.myapp.rhapp.web.rest.mapper.CollaborateurMapper com.myapp.rhapp.web.rest.CollaborateurResource.collaborateurMapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.myapp.rhapp.web.rest.mapper.CollaborateurMapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.inject.Inject()}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
    ... 20 common frames omitted  

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.myapp.rhapp.web.rest.mapper.CollaborateurMapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@javax.inject.Inject()}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1373)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545)
    ... 22 common frames omitted

这是一个已知问题吗？或者我的项目配置有问题？
谢谢

[更新]

我用你的 jhipster 创建了一个项目。
我运行mvn compile
然后我运行mvn启动项目（还没有用到eclipse）
我收到此错误：

java.lang.RuntimeException: java.net.BindException: Adresse déjà utilisée at io.undertow.Undertow.start(Undertow.java:186) at org.springframework.boot.context.embedded.undertow.UndertowEmbeddedServletContainer.start(UndertowEmbeddedServletContainer.java:121) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:293) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) at com.rhapp.rhapp.RhApp.main(RhApp.java:70) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:478) at java.lang.Thread.run(Thread.java:745) Caused by: java.net.BindException: Adresse déjà utilisée at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:433) at sun.nio.ch.Net.bind(Net.java:425) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) at org.xnio.nio.NioXnioWorker.createTcpConnectionServer(NioXnioWorker.java:190) at org.xnio.XnioWorker.createStreamConnectionServer(XnioWorker.java:243) at io.undertow.Undertow.start(Undertow.java:142) ... 15 common frames omitted

Answer 1

DTO 映射器由 MapStruct 注释处理器生成，您可以运行 mvn compile 先生成它们并确保 target/generated-sources 在 Eclipse 中链接为源文件夹。

http://jhipster.github.io/configuring-ide-eclipse/

http://jhipster.github.io/using-dtos/

或者也许有一种方法可以将 Eclipse 配置为自动运行 MapStruct 注释处理器。

更新

您可以看到错误消息 "Adresse déjà utilisée"，因此请查看您是否有另一个进程在侦听端口 8080（可能 Tomcat）并停止它并重新启动您的应用程序或编辑您的 application-*.yml，将 server.port 属性设置为 8080 以外的其他值，然后重新启动您的应用程序。

Jhipster：已添加实体，应用程序启动时 Mapper 对象出现异常

Jhipster : entity added, exception on Mapper object at application startup

jhipster