前提：项目之前使用springboot+spring-data-mongodb。现在需要加入elasticsearch做搜索引擎，这样mongo和elasticsearch共存了。
报错信息：
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'TTSAudioInfoEsRepository': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property index found for type TTSAudioInfo! at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1082) at org.springframework.data.repository.support.Repositories.cacheRepositoryFactory(Repositories.java:95) at org.springframework.data.repository.support.Repositories.populateRepositoryFactoryInformation(Repositories.java:88) at org.springframework.data.repository.support.Repositories.<init>(Repositories.java:81) at org.springframework.data.repository.support.DomainClassConverter.setApplicationContext(DomainClassConverter.java:98) at org.springframework.data.web.config.SpringDataWebConfiguration.addFormatters(SpringDataWebConfiguration.java:87) at org.springframework.web.servlet.config.annotation.WebMvcConfigurerComposite.addFormatters(WebMvcConfigurerComposite.java:49) at org.springframework.web.servlet.config.annotation.DelegatingWebMvcConfiguration.addFormatters(DelegatingWebMvcConfiguration.java:117) at org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.mvcConversionService(WebMvcConfigurationSupport.java:542) at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration$$EnhancerBySpringCGLIB$$f6948e02.CGLIB$mvcConversionService$45(<generated>) at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration$$EnhancerBySpringCGLIB$$f6948e02$$FastClassBySpringCGLIB$$43c05aaf.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356) at org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$EnableWebMvcConfiguration$$EnhancerBySpringCGLIB$$f6948e02.mvcConversionService(<generated>) 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.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ... 73 common frames omitted Caused by: org.springframework.data.mapping.PropertyReferenceException: No property index found for type TTSAudioInfo! at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:77) at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:329) at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:309) at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:272) at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:243) at org.springframework.data.repository.query.parser.Part.<init>(Part.java:76) at org.springframework.data.repository.query.parser.PartTree$OrPart.<init>(PartTree.java:235) at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:373) at org.springframework.data.repository.query.parser.PartTree$Predicate.<init>(PartTree.java:353) at org.springframework.data.repository.query.parser.PartTree.<init>(PartTree.java:84) at org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.<init>(PartTreeMongoQuery.java:60) at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory$MongoQueryLookupStrategy.resolveQuery(MongoRepositoryFactory.java:168) at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:435) at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:220) at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:266) at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:252) at org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.afterPropertiesSet(MongoRepositoryFactoryBean.java:108) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ... 98 common frames omitted
错误分析：
1、TTSAudioInfo类是pojo类，既是mongo的document也是elasticsearch的document
/** * @author: george * @date: 2018/6/26-16-39 * @description: */ @org.springframework.data.elasticsearch.annotations.Document(indexName = "tts_audio_info", type = "tts_audio_info") //spring-data-elasticsearch注解 @org.springframework.data.mongodb.core.mapping.Document(collection = "TTSAudioInfo") //spring-data-mongodb注解 @Data //lombok注解 public class TTSAudioInfo extends BaseModel { private static final long serialVersionUID = 1L; public static final String FIELD_QUESTION = "question"; public static final String FIELD_ANSWER = "answer"; public static final String FIELD_FILE_URI = "fileUri"; public static final String FIELD_FILE_PATH = "filePath"; private String question; @Field(type = FieldType.String, index = FieldIndex.analyzed) private String answer; private String fileUri; private String filePath; public TTSAudioInfo() { } }
2、然后是elasticsearch的repository接口，继承的是ElasticsearchRepository
import ai.deepbrain.admin.domain.TTSAudioInfo; import org.springframework.data.elasticsearch.repository.ElasticsearchRepository; /** * @author: george * @date: 2018/6/26-17-05 * @description: */ public interface TTSAudioInfoEsRepository extends ElasticsearchRepository<TTSAudioInfo, String> { }
分析：spring-data-mongo和spring-data-elasticsearch都属于spring的spring-data项目，提供各种数据库数据访问的封装(mongo、redis、oracle、mysql、jpa、elasticsearch等等等等)。他们封装的格式基本一样；
而在本文的错误中，我们使用了mongodb和elasticsearch，我们在查看TTSAudioInfoEsRepository继承的ElasticsearchCrudRepository的继承关系后得知，他和MongoRepository都继承spring-data-commons的PagingAndSortingRepository。
(这里还有一点就是所有repository接口在同一包下)所以导致了在mongodb扫描repository的时候也会扫描elasticsearch的repository。