Java 考虑定义一个名为“γx27”的bean；elasticsearchTemplate'；在您的配置中_Java_Spring_Spring Boot_<img Src="//i.stack.imgur.com/RUiNP.png" Height="16" Width="18" Alt="" Class="sponsor Tag Img">elasticsearch_Elastic Stack

Java 考虑定义一个名为“γx27”的bean；elasticsearchTemplate'；在您的配置中

java spring spring-boot

Java 考虑定义一个名为“γx27”的bean；elasticsearchTemplate'；在您的配置中,java,spring,spring-boot,elasticsearch,elastic-stack,Java,Spring,Spring Boot,elasticsearch,Elastic Stack,我刚刚启动了springboot，并试图用springboot实现弹性搜索，但我在运行springboot应用程序时遇到了这种类型的错误考虑在配置中定义一个名为“elasticsearchTemplate”的bean POM.XML org.springframework.boot spring引导启动器数据jpa org.springframework.boot SpringBootStarterWeb org.springframework.boot 弹簧起动试验测试 javax.se

我刚刚启动了springboot，并试图用springboot实现弹性搜索，但我在运行springboot应用程序时遇到了这种类型的错误

考虑在配置中定义一个名为“elasticsearchTemplate”的bean

POM.XML


org.springframework.boot
spring引导启动器数据jpa
org.springframework.boot
SpringBootStarterWeb
org.springframework.boot
弹簧起动试验
测试
javax.servlet
jstl
org.apache.tomcat.embed
汤姆卡特·贾斯珀
假如
org.springframework.boot
弹簧靴开发工具
org.webjars
独自创立
4.0.0
org.elasticsearch.client
运输
5.6.10
org.springframework.boot
弹簧启动启动器数据弹性搜索

存储库

@存储库
公共界面StudentRepository扩展ElasticsearchRepository{}

控制器

@RestController
公共类控制器{
@自动连线
StudentRepository studentRepo；
@GetMapping（value=“/student/all”）
列表getAllStudent（）{
迭代器studentList=studentRepo.findAll（）.Iterator（）；
List students=new ArrayList（）；
if（studentList.hasNext（））{
添加（studentList.next（））；
}
留学生；
}
@后期映射（value=“/student/add”）
字符串addStudent（@RequestBody Student）{
学生储蓄；
返回“记录添加成功”；
} 
@DeleteMapping（value=“/student/delete/{id}”）
字符串deleteStudent（@PathVariable int-id）{
studentRepo.deleteById（id）；
返回“记录删除成功”；
}
//@GetMapping（value=“/student/findById/{id}”）
}

有人能帮我解决这个错误吗

考虑在配置中定义一个名为“elasticsearchTemplate”的bean

您需要在application.properties文件中定义一些弹性搜索属性，例如

群集节点

，

群集名称

，这些属性由ElasticsearchTemplate和ElasticsearchRepository用于连接到Elasticsearch引擎

您可以参考下面提到的链接：

注意：请参考or（检查所需版本的Elasticsearch版本）以检查版本兼容性。

解决方案（1）：

如果您想使用SpringBoot1.x，只需创建一个

@Configuration

类并添加一个

ElasticsearchOperations

Bean
请注意，spring boot 1.x不支持ElasticSearch 5.x及更高版本的最新版本。
cluster.name:确保在代码中设置的集群名称与在$ES_HOME/config/elasticsearch.yml中设置的集群名称相同

@Configuration
public class ElasticSearchConfig {

    @Bean
    public ElasticsearchOperations elasticsearchTemplate() throws UnknownHostException {
        return new ElasticsearchTemplate(getClient());
    }

    @Bean
    public Client getClient() throws UnknownHostException {
        Settings setting = Settings
            .builder()
            .put("client.transport.sniff", true)
            .put("path.home", "/usr/share/elasticsearch") //elasticsearch home path
            .put("cluster.name", "elasticsearch")
            .build();
        //please note that client port here is 9300 not 9200! 
        TransportClient client = new PreBuiltTransportClient(setting)
            .addTransportAddress(new TransportAddress(InetAddress.getByName("127.0.0.1"), 9300)); 
        return client;
    }
}

解决方案（2）：

此外，您还可以参考该解决方案，它显示了spring boot 2.2.0中spring数据中Elasticsearch的自动配置。
因此，使用

spring boot 2.2

和

spring boot starter ElasticsRach

无需手动配置Elasticsearch。

示例工作项目：
版本：
弹簧靴：2.2.0.释放
弹性搜索：6.6.2

Pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<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.example</groupId>
    <artifactId>spring-boot-elasticsearch</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.0.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

spring.data.elasticsearch.cluster-name=elasticsearch
spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.elasticsearch.jest.uris=http://localhost:9200

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);
    }
}

import lombok.*;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;

@Document(indexName = "your_index", type = "books")
public class Book {
    @Id
    private String id;
    private String title;
    private String author;
    private String releaseDate;
    //getter, setter/constructors
}

import com.example.model.Book;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;
import java.util.List;

@Repository
public interface BookRepository extends ElasticsearchRepository<Book, String> {

    Page<Book> findByAuthor(String author, Pageable pageable);
    List<Book> findByTitle(String title);
}

import com.example.model.Book;
import com.example.repository.BookRepository;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import java.util.List;

@Service
public class BookServiceImpl implements BookService {

    private BookRepository bookRepository;

    public BookServiceImpl(BookRepository bookRepository) {
        this.bookRepository = bookRepository;
    }

    @Override
    public Book save(Book book) {
        return bookRepository.save(book);
    }

    @Override
    public void delete(Book book) {
        bookRepository.delete(book);
    }

    @Override
    public Book findOne(String id) {
        return bookRepository.findById(id).orElse(null);
    }

    @Override
    public Iterable<Book> findAll() {
        return bookRepository.findAll();
    }

    @Override
    public Page<Book> findByAuthor(String author, Pageable pageable) {
        return bookRepository.findByAuthor(author, pageable);
    }

    @Override
    public List<Book> findByTitle(String title) {
        return bookRepository.findByTitle(title);
    }
}

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class BookTest {

    @Autowired
    private BookService bookService;

    @Autowired
    private ElasticsearchTemplate esTemplate;

    @Before
    public void before(){
        esTemplate.deleteIndex(Book.class);
        esTemplate.createIndex(Book.class);
        esTemplate.putMapping(Book.class);
        esTemplate.refresh(Book.class);
    }

    @Test
    public void testSave(){
        Book book = new Book("1001", "Elasticsearch", "title", "23-FEB-2017");
        Book testBook = bookService.save(book);
        assertNotNull(testBook.getId());
        assertEquals(testBook.getTitle(), book.getTitle());
        assertEquals(testBook.getAuthor(), book.getAuthor());
        assertEquals(testBook.getReleaseDate(), book.getReleaseDate());
    }
}

主应用程序类：

<?xml version="1.0" encoding="UTF-8"?>
<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.example</groupId>
    <artifactId>spring-boot-elasticsearch</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.0.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

spring.data.elasticsearch.cluster-name=elasticsearch
spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.elasticsearch.jest.uris=http://localhost:9200

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);
    }
}

import lombok.*;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;

@Document(indexName = "your_index", type = "books")
public class Book {
    @Id
    private String id;
    private String title;
    private String author;
    private String releaseDate;
    //getter, setter/constructors
}

import com.example.model.Book;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;
import java.util.List;

@Repository
public interface BookRepository extends ElasticsearchRepository<Book, String> {

    Page<Book> findByAuthor(String author, Pageable pageable);
    List<Book> findByTitle(String title);
}

import com.example.model.Book;
import com.example.repository.BookRepository;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import java.util.List;

@Service
public class BookServiceImpl implements BookService {

    private BookRepository bookRepository;

    public BookServiceImpl(BookRepository bookRepository) {
        this.bookRepository = bookRepository;
    }

    @Override
    public Book save(Book book) {
        return bookRepository.save(book);
    }

    @Override
    public void delete(Book book) {
        bookRepository.delete(book);
    }

    @Override
    public Book findOne(String id) {
        return bookRepository.findById(id).orElse(null);
    }

    @Override
    public Iterable<Book> findAll() {
        return bookRepository.findAll();
    }

    @Override
    public Page<Book> findByAuthor(String author, Pageable pageable) {
        return bookRepository.findByAuthor(author, pageable);
    }

    @Override
    public List<Book> findByTitle(String title) {
        return bookRepository.findByTitle(title);
    }
}

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class BookTest {

    @Autowired
    private BookService bookService;

    @Autowired
    private ElasticsearchTemplate esTemplate;

    @Before
    public void before(){
        esTemplate.deleteIndex(Book.class);
        esTemplate.createIndex(Book.class);
        esTemplate.putMapping(Book.class);
        esTemplate.refresh(Book.class);
    }

    @Test
    public void testSave(){
        Book book = new Book("1001", "Elasticsearch", "title", "23-FEB-2017");
        Book testBook = bookService.save(book);
        assertNotNull(testBook.getId());
        assertEquals(testBook.getTitle(), book.getTitle());
        assertEquals(testBook.getAuthor(), book.getAuthor());
        assertEquals(testBook.getReleaseDate(), book.getReleaseDate());
    }
}

型号类别：

<?xml version="1.0" encoding="UTF-8"?>
<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.example</groupId>
    <artifactId>spring-boot-elasticsearch</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.0.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

spring.data.elasticsearch.cluster-name=elasticsearch
spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.elasticsearch.jest.uris=http://localhost:9200

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);
    }
}

import lombok.*;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;

@Document(indexName = "your_index", type = "books")
public class Book {
    @Id
    private String id;
    private String title;
    private String author;
    private String releaseDate;
    //getter, setter/constructors
}

import com.example.model.Book;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;
import java.util.List;

@Repository
public interface BookRepository extends ElasticsearchRepository<Book, String> {

    Page<Book> findByAuthor(String author, Pageable pageable);
    List<Book> findByTitle(String title);
}

import com.example.model.Book;
import com.example.repository.BookRepository;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import java.util.List;

@Service
public class BookServiceImpl implements BookService {

    private BookRepository bookRepository;

    public BookServiceImpl(BookRepository bookRepository) {
        this.bookRepository = bookRepository;
    }

    @Override
    public Book save(Book book) {
        return bookRepository.save(book);
    }

    @Override
    public void delete(Book book) {
        bookRepository.delete(book);
    }

    @Override
    public Book findOne(String id) {
        return bookRepository.findById(id).orElse(null);
    }

    @Override
    public Iterable<Book> findAll() {
        return bookRepository.findAll();
    }

    @Override
    public Page<Book> findByAuthor(String author, Pageable pageable) {
        return bookRepository.findByAuthor(author, pageable);
    }

    @Override
    public List<Book> findByTitle(String title) {
        return bookRepository.findByTitle(title);
    }
}

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class BookTest {

    @Autowired
    private BookService bookService;

    @Autowired
    private ElasticsearchTemplate esTemplate;

    @Before
    public void before(){
        esTemplate.deleteIndex(Book.class);
        esTemplate.createIndex(Book.class);
        esTemplate.putMapping(Book.class);
        esTemplate.refresh(Book.class);
    }

    @Test
    public void testSave(){
        Book book = new Book("1001", "Elasticsearch", "title", "23-FEB-2017");
        Book testBook = bookService.save(book);
        assertNotNull(testBook.getId());
        assertEquals(testBook.getTitle(), book.getTitle());
        assertEquals(testBook.getAuthor(), book.getAuthor());
        assertEquals(testBook.getReleaseDate(), book.getReleaseDate());
    }
}

存储库类：

<?xml version="1.0" encoding="UTF-8"?>
<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.example</groupId>
    <artifactId>spring-boot-elasticsearch</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.0.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

spring.data.elasticsearch.cluster-name=elasticsearch
spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.elasticsearch.jest.uris=http://localhost:9200

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);
    }
}

import lombok.*;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;

@Document(indexName = "your_index", type = "books")
public class Book {
    @Id
    private String id;
    private String title;
    private String author;
    private String releaseDate;
    //getter, setter/constructors
}

import com.example.model.Book;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;
import java.util.List;

@Repository
public interface BookRepository extends ElasticsearchRepository<Book, String> {

    Page<Book> findByAuthor(String author, Pageable pageable);
    List<Book> findByTitle(String title);
}

import com.example.model.Book;
import com.example.repository.BookRepository;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import java.util.List;

@Service
public class BookServiceImpl implements BookService {

    private BookRepository bookRepository;

    public BookServiceImpl(BookRepository bookRepository) {
        this.bookRepository = bookRepository;
    }

    @Override
    public Book save(Book book) {
        return bookRepository.save(book);
    }

    @Override
    public void delete(Book book) {
        bookRepository.delete(book);
    }

    @Override
    public Book findOne(String id) {
        return bookRepository.findById(id).orElse(null);
    }

    @Override
    public Iterable<Book> findAll() {
        return bookRepository.findAll();
    }

    @Override
    public Page<Book> findByAuthor(String author, Pageable pageable) {
        return bookRepository.findByAuthor(author, pageable);
    }

    @Override
    public List<Book> findByTitle(String title) {
        return bookRepository.findByTitle(title);
    }
}

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class BookTest {

    @Autowired
    private BookService bookService;

    @Autowired
    private ElasticsearchTemplate esTemplate;

    @Before
    public void before(){
        esTemplate.deleteIndex(Book.class);
        esTemplate.createIndex(Book.class);
        esTemplate.putMapping(Book.class);
        esTemplate.refresh(Book.class);
    }

    @Test
    public void testSave(){
        Book book = new Book("1001", "Elasticsearch", "title", "23-FEB-2017");
        Book testBook = bookService.save(book);
        assertNotNull(testBook.getId());
        assertEquals(testBook.getTitle(), book.getTitle());
        assertEquals(testBook.getAuthor(), book.getAuthor());
        assertEquals(testBook.getReleaseDate(), book.getReleaseDate());
    }
}