スプリングブートハイバーネーション検索エラー

Question

私はSpringブートでアプリケーションを準備し、使用を実証し、Hibernate Searchの機能を

機能させました。 /エラー

問題：私は、アプリケーションを実行しようとすると、それは私にエラーを与える：

Exception in thread "main" java.lang.IllegalArgumentException: java.lang.Object is not an indexed entity or a subclass of an indexed entity 


I have referred the link : http://blog.netgloo.com/2014/10/27/using-mysql-in-spring-boot-via-spring-data-jpa-and-hibernate/ 

マイコード：

------------ ------------------ Application.java -------------------

package netgloo; 

import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 

@SpringBootApplication 
public class Application { 

    public static void main(String[] args) { 
    SpringApplication.run(Application.class, args); 
    } 

} 

--- ---------------------------- BuildSearchIndex.java ------------------- -

package netgloo; 

import javax.persistence.EntityManager; 
import javax.persistence.PersistenceContext; 

import org.hibernate.search.jpa.FullTextEntityManager; 
import org.hibernate.search.jpa.Search; 
import org.springframework.context.ApplicationListener; 
import org.springframework.context.event.ContextRefreshedEvent; 
import org.springframework.stereotype.Component; 

/** 
* The only meaning for this class is to build the Lucene index at application 
* startup. This is needed in this example because the database is filled 
* before and each time the web application is started. In a normal web 
* application probably you don't need to do this. 

*/ 
@Component 
public class BuildSearchIndex implements ApplicationListener<ContextRefreshedEvent> { 

    @PersistenceContext 
    private EntityManager entityManager; 

    /** 
    * Create an initial Lucene index for the data already present in the 
    * database. 
    * This method is called during Spring's startup. 
    * 
    * @param event Event raised when an ApplicationContext gets initialized or 
    * refreshed. 
    */ 
    @Override 
    public void onApplicationEvent(final ContextRefreshedEvent event) { 
     try { 
      FullTextEntityManager fullTextEntityManager = 
        Search.getFullTextEntityManager(entityManager); 
      fullTextEntityManager.createIndexer().startAndWait(); 
     } 
     catch (InterruptedException e) { 
      System.out.println(
        "An error occurred trying to build the serach index: " + 
          e.toString()); 
     } 
     return; 
    } 


} 

---------------------------------コントローラ---------- ---------------

package netgloo.controllers; 

import java.util.List; 

import netgloo.models.Employee; 
import netgloo.search.EmployeeSearch; 


import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.ResponseBody; 

@Controller 
public class MainController { 
    @Autowired 
    private EmployeeSearch emprSearch; 

    @RequestMapping("/") 
    @ResponseBody 
    public String index() { 
     return "Welcome !!!:)"; 
    } 

    @RequestMapping("/search") 
    public String search(String query, Model model) { 
     List<Employee> searchResults = null; 
     try { 
      searchResults = emprSearch.search(query); 
     } catch (Exception ex) { 
      return ""; 
     } 
     model.addAttribute("searchResults", searchResults); 
     return "search"; 
    } 
} 

---------------------------- - モデル-------------------------------

package netgloo.models; 

import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 
import javax.persistence.Table; 
import javax.validation.constraints.NotNull; 

@Entity 
@Table(name = "employees") 
public class Employee { 

    // An autogenerated id (unique for each user in the db) 
    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private long id; 

    @NotNull 
    private String email; 

    @NotNull 
    private String name; 

    // Public methods 

    public Employee() { } 

    public Employee(long id) { 
    this.id = id; 
    } 

    public Employee(String email, String name) { 
    this.email = email; 
    this.name = name; 
    } 

    // Getter and setter methods 
    // ... 

} 

///////// //////////////////EmployeeSearch.java////////////////////

package netgloo.search; 

import java.util.List; 

import javax.persistence.EntityManager; 
import javax.persistence.PersistenceContext; 
import javax.transaction.Transactional; 

import netgloo.models.Employee; 

import org.hibernate.search.jpa.FullTextEntityManager; 
import org.hibernate.search.query.dsl.QueryBuilder; 
import org.springframework.stereotype.Repository; 

@Repository 
@Transactional 
public class EmployeeSearch { 

    // Spring will inject here the entity manager object 
    @PersistenceContext 
    private EntityManager entityManager; 

    public List<Employee> search(String text) { 

     // get the full text entity manager 
     FullTextEntityManager fullTextEntityManager = org.hibernate.search.jpa.Search 
       .getFullTextEntityManager(entityManager); 

     // create the query using Hibernate Search query 
     QueryBuilder queryBuilder = fullTextEntityManager.getSearchFactory().buildQueryBuilder().forEntity(Employee.class) 
       .get(); 

     // a very basic query by keywords 
     org.apache.lucene.search.Query query = queryBuilder.keyword().onFields("name", "city", "email").matching(text) 
       .createQuery(); 

     // wrap Lucene query in an Hibernate Query object 
     org.hibernate.search.jpa.FullTextQuery jpaQuery = fullTextEntityManager.createFullTextQuery(query, Employee.class); 

     // execute search and return results (sorted by relevance as default) 
     @SuppressWarnings("unchecked") 
     List<Employee> results = jpaQuery.getResultList(); 

     return results; 
    } 

} 

//////////////////////////////////////////////////////// /////////////

<!DOCTYPE HTML> 
<html xmlns:th="http://www.thymeleaf.org"> 

<head> 
    <title>Search</title> 
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 
</head> 

<body> 

    <ol> 
    <li th:each="employee : ${searchResults}"> 
     <b><span th:text="${employee.username}"></span></b> - 
     <span th:text="${employee.city}"></span> - 
     <span th:text="${employee.email}"></span> 
    </li> 
    </ol> 

    <p th:if="${searchResults.isEmpty()}"> 
    <strong>Hint</strong>: the query "<a href='/search?query=amy'>amy</a>" 
    should return some results. 
    </p> 

</body> 

</html> 

///////////////////////////application.properties ///////////////////////

# Datasource settings 
spring.datasource.driverClassName=com.mysql.jdbc.Driver 
spring.datasource.url=jdbc:mysql://localhost:3306/myschema 
spring.datasource.username=root 
spring.datasource.password=admin123 

# Hibernate settings 
spring.jpa.hibernate.ddl-auto=create 
spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect 
spring.jpa.hibernate.naming_strategy =org.hibernate.cfg.ImprovedNamingStrategy 
spring.jpa.show-sql = true 

# Specify the DirectoryProvider to use (the Lucene Directory) 
spring.jpa.properties.hibernate.search.default.directory_provider = filesystem 

# Using the filesystem DirectoryProvider you also have to specify the default 
# base directory for all indexes (make sure that the application have write 
# permissions on such directory) 
spring.jpa.properties.hibernate.search.default.indexBase = c:\\indexeFiles 


# =============================== 
# = THYMELEAF 
# =============================== 

spring.thymeleaf.cache = false 
server.port=9001 

//////////////////// ///////////pom.xml///////////////////////////

<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>netgloo</groupId> 
    <artifactId>spring-boot-hibernate-search</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 

    <name>spring-boot-hibernate-search</name> 
    <description>How to integrate Hibernate Search in Spring Boot</description> 

    <parent> 
    <groupId>org.springframework.boot</groupId> 
    <artifactId>spring-boot-starter-parent</artifactId> 
    <version>1.2.3.RELEASE</version> 
    <relativePath /> 
    </parent> 

    <dependencies> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-web</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-thymeleaf</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-data-jpa</artifactId> 
    </dependency> 
    <dependency> 
     <groupId>mysql</groupId> 
     <artifactId>mysql-connector-java</artifactId> 
    </dependency> 

    <!-- Maven artifact identifier for Hibernate Search --> 
    <dependency> 
     <groupId>org.hibernate</groupId> 
     <artifactId>hibernate-search-orm</artifactId> 
     <version>4.5.1.Final</version> 
    </dependency> 

    <!-- Optional: to use JPA 2.1 --> 
    <dependency> 
     <groupId>org.hibernate</groupId> 
     <artifactId>hibernate-entitymanager</artifactId> 
    </dependency> 

    </dependencies> 

    <properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <start-class>netgloo.Application</start-class> 
    <java.version>1.7</java.version> 
    </properties> 

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

</project> 

私のスタックトレース：

Exception in thread "main" java.lang.IllegalArgumentException: java.lang.Object is not an indexed entity or a subclass of an indexed entity 
    at org.hibernate.search.impl.MassIndexerImpl.toRootEntities(MassIndexerImpl.java:102) 
    at org.hibernate.search.impl.MassIndexerImpl.<init>(MassIndexerImpl.java:74) 
    at org.hibernate.search.impl.DefaultMassIndexerFactory.createMassIndexer(DefaultMassIndexerFactory.java:47) 
    at org.hibernate.search.impl.FullTextSessionImpl.createIndexer(FullTextSessionImpl.java:181) 
    at org.hibernate.search.jpa.impl.FullTextEntityManagerImpl.createIndexer(FullTextEntityManagerImpl.java:349) 
    at netgloo.BuildSearchIndex.onApplicationEvent(BuildSearchIndex.java:38) 
    at netgloo.BuildSearchIndex.onApplicationEvent(BuildSearchIndex.java:1) 
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:151) 
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128) 
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331) 
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:773) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:140) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:957) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:946) 
    at netgloo.Application.main(Application.java:10) 

ありがとうございます！

Answer 1

エンティティには@Indexedと注釈を付ける必要があります。また、必要に応じてエンティティクラスのフィールドに@Fieldというアノテーションを付ける必要があります。