我使用jhipster生成器创建了一个spring boot应用程序，然后我添加到entites作者和书中，作者有很多书，而一本书有一个作者。
然后当我使用Intellij IDEA运行我的应用时，我得到了这个堆栈跟踪：
java.lang.UnsupportedOperationException: null
at com.zaxxer.hikari.util.FastList.iterator(FastList.java:209) ~[HikariCP-2.4.1.jar:na]
at org.apache.catalina.loader.WebappClassLoaderBase.loadedByThisOrChild(WebappClassLoaderBase.java:2195) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks(WebappClassLoaderBase.java:2105) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalsForLeaks(WebappClassLoaderBase.java:2060) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.loader.WebappClassLoaderBase.clearReferences(WebappClassLoaderBase.java:1575) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.loader.WebappClassLoaderBase.stop(WebappClassLoaderBase.java:1521) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.loader.WebappLoader.stopInternal(WebappLoader.java:447) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5517) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1424) [tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1413) [tomcat-embed-core-8.0.30.jar:8.0.30]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_73]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_73]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_73]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_73]
2016-03-26 16:43:25.866 ERROR 3056 --- [ restartedMain] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authorServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.capvalue.recruite.web.rest.mapper.AuthorMapper com.capvalue.recruite.service.impl.AuthorServiceImpl.authorMapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.capvalue.recruite.web.rest.mapper.AuthorMapper] 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) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:764) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:357) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) ~[spring-boot-1.3.1.RELEASE.jar:1.3.1.RELEASE]
at com.capvalue.recruite.Application.main(Application.java:74) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_73]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_73]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_73]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_73]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.3.1.RELEASE.jar:1.3.1.RELEASE]
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.capvalue.recruite.web.rest.mapper.AuthorMapper com.capvalue.recruite.service.impl.AuthorServiceImpl.authorMapper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.capvalue.recruite.web.rest.mapper.AuthorMapper] 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) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
... 20 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.capvalue.recruite.web.rest.mapper.AuthorMapper] 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) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1119) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
... 22 common frames omitted
2016-03-26 16:43:25.870 WARN 3056 --- [ restartedMain] o.s.boot.SpringApplication : Error handling failed (Error creating bean with name 'delegatingApplicationListener' defined in class path resource [org/springframework/security/config/annotation/web/configuration/WebSecurityConfiguration.class]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.annotation.ProxyCachingConfiguration': Initialization of bean failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importRegistry' is defined)
Process finished with exit code 1
从GitHub中的类似问题（https://github.com/jhipster/generator-jhipster/issues/2399）我了解到mapstruct注释处理器没有生成AuthorMapperImpl.java和BookMapperImpl.java我只能找到AuthorMapper.java和BookMapper.java：
AuthorMapper.java
@Mapper(componentModel = "spring", uses = {})
public interface AuthorMapper {
AuthorDTO authorToAuthorDTO(Author author);
@Mapping(target = "books", ignore = true)
Author authorDTOToAuthor(AuthorDTO authorDTO);
}
BookMapperImpl.java
@Mapper(componentModel = "spring", uses = {})
public interface BookMapper {
@Mapping(source = "author.id", target = "authorId")
@Mapping(source = "author.name", target = "authorName")
BookDTO bookToBookDTO(Book book);
@Mapping(source = "authorId", target = "author")
Book bookDTOToBook(BookDTO bookDTO);
default Author authorFromId(Long id) {
if (id == null) {
return null;
}
Author author = new Author();
author.setId(id);
return author;
}
}
generator-jhipster 2.27.2
{
"generator-jhipster": {
"baseName": "jhipster",
"packageName": "com.capvalue.recruite",
"packageFolder": "com/capvalue/recruite",
"authenticationType": "session",
"hibernateCache": "ehcache",
"clusteredHttpSession": "no",
"websocket": "no",
"databaseType": "sql",
"devDatabaseType": "mysql",
"prodDatabaseType": "mysql",
"searchEngine": "elasticsearch",
"useSass": false,
"buildTool": "maven",
"frontendBuilder": "grunt",
"enableTranslation": true,
"enableSocialSignIn": false,
"rememberMeKey": "f70fd101e4b03583ba48c96a91e0af7ab6a6c92e",
"testFrameworks": [
"gatling"
]
}
}
Author.json
{
"relationships": [
{
"relationshipId": 1,
"relationshipName": "book",
"otherEntityName": "book",
"relationshipType": "one-to-many",
"otherEntityRelationshipName": "author"
}
],
"fields": [
{
"fieldId": 1,
"fieldName": "name",
"fieldType": "String",
"fieldValidateRules": [
"required"
]
},
{
"fieldId": 2,
"fieldName": "birthday",
"fieldType": "LocalDate"
}
],
"changelogDate": "20160326163433",
"dto": "mapstruct",
"service": "serviceImpl",
"pagination": "pager"
}
Book.json
{
"relationships": [
{
"relationshipId": 1,
"relationshipName": "author",
"otherEntityName": "author",
"relationshipType": "many-to-one",
"otherEntityField": "name"
}
],
"fields": [
{
"fieldId": 1,
"fieldName": "title",
"fieldType": "String",
"fieldValidateRules": [
"required"
]
},
{
"fieldId": 2,
"fieldName": "price",
"fieldType": "BigDecimal"
}
],
"changelogDate": "20160326164101",
"dto": "mapstruct",
"service": "serviceImpl",
"pagination": "pager"
}
答案 0 :(得分：1)
HikariCP的FastList迭代器的UnsupportedOperationException是在更新版本（HikariCP）中修复的。我建议您升级到HikariCP 2.4.5。