java.lang.IllegalStateException:未能内省类_Java_Spring_Spring Boot_<img Src="//i.stack.imgur.com/RUiNP.png" Height="16" Width="18" Alt="" Class="sponsor Tag Img">elasticsearch

java.lang.IllegalStateException:未能内省类

java spring spring-boot

java.lang.IllegalStateException:未能内省类,java,spring,spring-boot,elasticsearch,Java,Spring,Spring Boot,elasticsearch,我正在尝试将Elasticsearch添加到我的项目中。我已经在pom.xml文件中添加了必要的依赖项。运行服务器时，出现以下错误：请帮我解决这个问题我还试图在eclipse中找到elasticsearch.yml文件来配置节点，但没有这样的文件。在哪里可以找到elasticsearch.yml文件 HibernateConfig.java package net.kzn.shoppingbackend.config; import java.net.InetAddress; import

我正在尝试将Elasticsearch添加到我的项目中。我已经在pom.xml文件中添加了必要的依赖项。运行服务器时，出现以下错误：

请帮我解决这个问题

我还试图在eclipse中找到elasticsearch.yml文件来配置节点，但没有这样的文件。在哪里可以找到elasticsearch.yml文件

HibernateConfig.java

package net.kzn.shoppingbackend.config;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Properties;

import javax.sql.DataSource;

import org.apache.commons.dbcp2.BasicDataSource;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.core.ElasticsearchOperations;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBuilder;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableElasticsearchRepositories(basePackages = "net.kzn.shoppingbackend")
@ComponentScan(basePackages = { "net.kzn.shoppingbackend" })
@EnableTransactionManagement
public class HibernateConfig {

    // change the below based on the DBMS you choose
    private final static String DATABASE_URL = "jdbc:h2:tcp://localhost/~/onlineshopping";
    private final static String DATABASE_DRIVER = "org.h2.Driver";
    private final static String DATABASE_DIALECT = "org.hibernate.dialect.H2Dialect";
    private final static String DATABASE_USERNAME = "sa";
    private final static String DATABASE_PASSWORD = "";

    @Value("${elasticsearch.home:/home/vidyesh/.m2/repository/org/elasticsearch/client/elasticsearch-rest-client/5.6.8}")
    private String elasticsearchHome;

    @Value("${elasticsearch.cluster.name:elasticsearch}")
    private String clusterName;

    // database bean will be available
    @Bean("dataSource")
    public DataSource getDataSource() {
        BasicDataSource dataSource = new BasicDataSource();

        // providing the database connection information

        dataSource.setDriverClassName(DATABASE_DRIVER);
        dataSource.setUrl(DATABASE_URL);
        dataSource.setUsername(DATABASE_USERNAME);
        dataSource.setPassword(DATABASE_PASSWORD);

        return dataSource;
    }

    // sessionFactory bean will be available
    @Bean
    public SessionFactory getSessionFactory(DataSource dataSource) {

        LocalSessionFactoryBuilder builder = new LocalSessionFactoryBuilder(dataSource);

        builder.addProperties(getHibernateProperties());
        builder.scanPackages("net.kzn.shoppingbackend");

        return builder.buildSessionFactory();
    }

    // All the hibernate properties will be returned in this method
    private Properties getHibernateProperties() {

        Properties properties = new Properties();

        properties.put("hibernate.dialect", DATABASE_DIALECT);
        properties.put("hibernate.show_sql", "true");
        properties.put("hibernate.format_sql", "true");

        properties.put("hibernate.hbm2ddl.auto", "update");

        return properties;
    }

    @Bean
    public Client client() {
        TransportClient client = null;
        try {
            final Settings elasticsearchSettings = Settings.builder()
              .put("client.transport.sniff", true)
              .put("path.home", elasticsearchHome)
              .put("cluster.name", clusterName).build();
            client = new PreBuiltTransportClient(elasticsearchSettings); 
            client.addTransportAddress(new TransportAddress(InetAddress.getByName("127.0.0.1"), 9300));

        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
        return client;
    }

    @Bean
    public ElasticsearchOperations elasticsearchTemplate() {
        return new ElasticsearchTemplate(client());
    }

    // transactionManager bean
    @Bean
    public HibernateTransactionManager geTransactionManager(SessionFactory sessionFactory) {

        HibernateTransactionManager transactionManager = new HibernateTransactionManager(sessionFactory);
        return transactionManager;
    }

}

package net.kzn.shoppingbackend.load;

import java.util.ArrayList;
import java.util.List;

import javax.annotation.PostConstruct;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchOperations;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import net.kzn.shoppingbackend.dto.Product;
import net.kzn.shoppingbackend.dto.Users;
import net.kzn.shoppingbackend.repository.UsersRepository;

@Component
public class Loaders {

    @Autowired
    ElasticsearchOperations operations;

    @Autowired
    UsersRepository usersRepository;

    @PostConstruct
    @Transactional
    public void loadAll(){

        operations.putMapping(Product.class);
        System.out.println("Loading Data");
        usersRepository.save(getData());
        System.out.printf("Loading Completed");

    }

    private List<Users> getData() {
        List<Users> userses = new ArrayList<>();
        userses.add(new Users("Ajay",123L, "Accounting", 12000L));
        userses.add(new Users("Jaga",1234L, "Finance", 22000L));
        userses.add(new Users("Thiru",1235L, "Accounting", 12000L));
        return userses;
    }
}

Loaders.java

package net.kzn.shoppingbackend.config;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Properties;

import javax.sql.DataSource;

import org.apache.commons.dbcp2.BasicDataSource;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.core.ElasticsearchOperations;
import org.springframework.data.elasticsearch.core.ElasticsearchTemplate;
import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBuilder;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableElasticsearchRepositories(basePackages = "net.kzn.shoppingbackend")
@ComponentScan(basePackages = { "net.kzn.shoppingbackend" })
@EnableTransactionManagement
public class HibernateConfig {

    // change the below based on the DBMS you choose
    private final static String DATABASE_URL = "jdbc:h2:tcp://localhost/~/onlineshopping";
    private final static String DATABASE_DRIVER = "org.h2.Driver";
    private final static String DATABASE_DIALECT = "org.hibernate.dialect.H2Dialect";
    private final static String DATABASE_USERNAME = "sa";
    private final static String DATABASE_PASSWORD = "";

    @Value("${elasticsearch.home:/home/vidyesh/.m2/repository/org/elasticsearch/client/elasticsearch-rest-client/5.6.8}")
    private String elasticsearchHome;

    @Value("${elasticsearch.cluster.name:elasticsearch}")
    private String clusterName;

    // database bean will be available
    @Bean("dataSource")
    public DataSource getDataSource() {
        BasicDataSource dataSource = new BasicDataSource();

        // providing the database connection information

        dataSource.setDriverClassName(DATABASE_DRIVER);
        dataSource.setUrl(DATABASE_URL);
        dataSource.setUsername(DATABASE_USERNAME);
        dataSource.setPassword(DATABASE_PASSWORD);

        return dataSource;
    }

    // sessionFactory bean will be available
    @Bean
    public SessionFactory getSessionFactory(DataSource dataSource) {

        LocalSessionFactoryBuilder builder = new LocalSessionFactoryBuilder(dataSource);

        builder.addProperties(getHibernateProperties());
        builder.scanPackages("net.kzn.shoppingbackend");

        return builder.buildSessionFactory();
    }

    // All the hibernate properties will be returned in this method
    private Properties getHibernateProperties() {

        Properties properties = new Properties();

        properties.put("hibernate.dialect", DATABASE_DIALECT);
        properties.put("hibernate.show_sql", "true");
        properties.put("hibernate.format_sql", "true");

        properties.put("hibernate.hbm2ddl.auto", "update");

        return properties;
    }

    @Bean
    public Client client() {
        TransportClient client = null;
        try {
            final Settings elasticsearchSettings = Settings.builder()
              .put("client.transport.sniff", true)
              .put("path.home", elasticsearchHome)
              .put("cluster.name", clusterName).build();
            client = new PreBuiltTransportClient(elasticsearchSettings); 
            client.addTransportAddress(new TransportAddress(InetAddress.getByName("127.0.0.1"), 9300));

        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
        return client;
    }

    @Bean
    public ElasticsearchOperations elasticsearchTemplate() {
        return new ElasticsearchTemplate(client());
    }

    // transactionManager bean
    @Bean
    public HibernateTransactionManager geTransactionManager(SessionFactory sessionFactory) {

        HibernateTransactionManager transactionManager = new HibernateTransactionManager(sessionFactory);
        return transactionManager;
    }

}

package net.kzn.shoppingbackend.load;

import java.util.ArrayList;
import java.util.List;

import javax.annotation.PostConstruct;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.elasticsearch.core.ElasticsearchOperations;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import net.kzn.shoppingbackend.dto.Product;
import net.kzn.shoppingbackend.dto.Users;
import net.kzn.shoppingbackend.repository.UsersRepository;

@Component
public class Loaders {

    @Autowired
    ElasticsearchOperations operations;

    @Autowired
    UsersRepository usersRepository;

    @PostConstruct
    @Transactional
    public void loadAll(){

        operations.putMapping(Product.class);
        System.out.println("Loading Data");
        usersRepository.save(getData());
        System.out.printf("Loading Completed");

    }

    private List<Users> getData() {
        List<Users> userses = new ArrayList<>();
        userses.add(new Users("Ajay",123L, "Accounting", 12000L));
        userses.add(new Users("Jaga",1234L, "Finance", 22000L));
        userses.add(new Users("Thiru",1235L, "Accounting", 12000L));
        return userses;
    }
}

请告诉我我做错了什么？这个问题与依赖性有关吗

原因：java.lang.ClassNotFoundException: org.springframework.data.elasticsearch.core.ElasticsearchOperations

此错误消息表示包含此类的jar不在应用程序类路径上

将spring数据elasticsearch jar添加到其中，您的错误就会消失

如果您使用的是maven，请通过以下方式将jar添加到类路径：

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-elasticsearch</artifactId>
    <version>3.2.5.RELEASE</version>
</dependency>


org.springframework.data
)
您需要将spring data elasticsearch.jar文件添加到类路径中。显示错误是因为这个小错误。您可以包括错误消息中附带的stacktrace吗？我添加了完整的错误消息。我将spring data elasticsearch jar文件添加到类路径失败，以内省类错误已消失，但新的错误显示没有任何配置的节点可用：[{传输#-1}{IQoE1_yHTfGWK_L2n5EHoQ}{127.0.0.1}{127.0.0.1:9300}]12:41:34.620“o.s.d.e.r.s.AbstractElasticSearchRepository路径正确吗？@值（${elasticsearch.home:/home/vidyesh/.m2/repository/org/elasticsearch/client/transport/6.3.2}”）@vidy you's next错误消息似乎表明您在应用程序中配置的弹性搜索服务器不存在（未启动、未位于此地址和/或未在正确的端口上侦听）。请花点时间阅读stackoverflow常见问题解答：为了使网站对每个人都可用，评论应该与他们的答案/问题相关，而不包含要解决的新问题。如果您有新问题，您应该提出新问题：）
<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-elasticsearch</artifactId>
    <version>3.2.5.RELEASE</version>
</dependency>

+--------------+----------------------------+----------------+-------------+
| Spring Data  | Spring Data Elasticsearch  | Elasticsearch  | Spring Boot |
+--------------+----------------------------+----------------+-------------+
| 2020.0.0     | 4.1.x                      |          7.9.3 | 2.3.x       |
| Neumann      | 4.0.x                      |          7.6.2 | 2.3.x       |
| Moore        | 3.2.x                      |          6.8.4 | 2.2.x       |
| Lovelace     | 3.1.x                      |          6.2.2 | 2.1.x       |
| Kay          | 3.0.x                      |          5.5.0 | 2.0.x       |
| Ingalls      | 2.1.x                      |          2.4.0 | 1.5.x       |
+--------------+----------------------------+----------------+-------------+