java.displaces를 클릭합니다.InlawalStateException:클래스를 조사하지 못했습니다.
프로젝트에 Elastic Search를 추가하려고 합니다.pom.xml 파일에 필요한 의존관계를 추가했습니다.서버를 실행하면 다음 오류가 나타납니다.
java.lang.IllegalStateException: Failed to introspect Class [net.kzn.shoppingbackend.config.HibernateConfig] from ClassLoader [ParallelWebappClassLoader
이 문제를 해결할 수 있도록 도와주세요.
또한 노드를 설정하기 위해 exclipse에서 elasticsearch.yml 파일을 찾으려고 했지만 해당 파일이 없습니다.elasticsearch.yml 파일은 어디서 찾을 수 있나요?
휴지 상태 Config.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;
}
}
Loaders.java
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;
}
}
이것은 나의 pom.xml 파일입니다.
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>net.kzn</groupId>
<artifactId>shoppingbackend</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>shoppingbackend</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>5.1.1.RELEASE</spring.version>
<hibernate.version>5.3.6.Final</hibernate.version>
<jackson.version>2.9.6</jackson.version>
</properties>
<dependencies>
<!-- JUNIT version 4.12 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- H2 database -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.4.197</version>
</dependency>
<!-- Hibernate Dependency -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-search-elasticsearch</artifactId>
<version>5.10.4.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.1</version>
</dependency>
<!-- database connection pooling -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>2.4.0</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.6</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.6</version>
</dependency>
<!-- SLF4J logging -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.0.12.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.elasticsearch/elasticsearch -->
<dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>6.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.elasticsearch.client/transport -->
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>transport</artifactId>
<version>6.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.elasticsearch.plugin/transport-netty4-client -->
<dependency>
<groupId>org.elasticsearch.plugin</groupId>
<artifactId>transport-netty4-client</artifactId>
<version>6.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-elasticsearch -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-elasticsearch</artifactId>
<version>3.0.11.RELEASE</version>
</dependency>
<dependency>
<groupId>net.java.dev.jna</groupId>
<artifactId>jna</artifactId>
<version>4.2.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
에러
ERROR Context
initialization failed 19:56:48.391" o.s.web.context.ContextLoader java.lang.IllegalStateException:
Failed to introspect Class[net.kzn.shoppingbackend.config.HibernateConfig]from ClassLoader[ParallelWebappClassLoader
context:
onlineshopping
delegate:false---------->
Parent Classloader:java.net.URLClassLoader @24d 46 ca6]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:680)
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:577)
at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:562)
at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:620)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:721)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:662)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:630)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1491)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:507)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:477)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:99)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:691)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:528)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:400)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:291)
제가 여기서 뭘 잘못하고 있는 거죠?문제는 부양가족과 관련이 있습니까?
원인: java.lang.ClassNotFoundException: org.springframework.data.elasticsearch.core.Elastic Search 조작
이 오류 메시지는 이 클래스를 포함하는 jar가 응용 프로그램 클래스 경로에 없음을 나타냅니다.
spring-data-elastic search jar를 추가하면 오류가 사라집니다.
maven을 사용하는 경우 다음과 같이 클래스 경로에 jar를 추가합니다.
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-elasticsearch</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
사용하는 버전은 접속하고 있는 탄력 검색 버전에 따라 달라집니다.
+--------------+----------------------------+----------------+-------------+| 스프링 데이터 | 스프링 데이터 탄력 검색 | 탄력 검색 | 스프링 부트 |+--------------+----------------------------+----------------+-------------+| 2021.1 | 4.3.x | 7.15.2 | 2.5.x || 2021.0 | 4.2.x | 7.12.0 | 2.5.x || 2020.0.0 | 4.1.x | 7.9.3 | 2.3.x || Neumann | 4.0.x | 7.6.2 | 2.3.x || 무어 | 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 |+--------------+----------------------------+----------------+-------------+
(출처 : https://docs.spring.io/spring-data/elasticsearch/docs/current/reference/html/ # preface.displays )
클래스 경로에 spring-data-elasticsearch.jar 파일을 추가해야 합니다.이 작은 실수 때문에 에러가 발생하고 있습니다.
언급URL : https://stackoverflow.com/questions/53284134/java-lang-illegalstateexception-failed-to-introspect-class
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