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Springアプリケーションの実行中に次のエラーが発生しました。私はこの問題を解決するためにいくつかの助けが必要ですか、誰かがこの問題のデバッグと解決にどのようにアプローチできるか教えていただければ幸いです。私はちょうどインターネットを経由して、私のpom.xmlファイルでさまざまな組み合わせをしています。クラスパスリソースで定義された 'entityManagerFactory'という名前のBeanを作成中にエラーが発生しました
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1716) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:499) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1083) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:122) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.0.0.M3.jar:2.0.0.M3]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.0.M3.jar:2.0.0.M3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.0.M3.jar:2.0.0.M3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1245) [spring-boot-2.0.0.M3.jar:2.0.0.M3]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1233) [spring-boot-2.0.0.M3.jar:2.0.0.M3]
at ca.naijaconnects.naijaconnectsproject.NaijaconnectsProjectApplication.main(NaijaconnectsProjectApplication.java:15) [classes/:na]
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:271) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:233) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:51) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:94) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:242) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:210) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes(MetadataBuildingProcess.java:352) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:111) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:858) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:885) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) ~[spring-orm-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:358) ~[spring-orm-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:384) ~[spring-orm-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1776) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1712) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
... 16 common frames omitted
Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [org.hibernate.dialect.MYSQL5Dialect] as strategy [org.hibernate.dialect.Dialect]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor(StrategySelectorImpl.java:126) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveStrategy(StrategySelectorImpl.java:194) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveDefaultableStrategy(StrategySelectorImpl.java:152) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveDefaultableStrategy(StrategySelectorImpl.java:139) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveStrategy(StrategySelectorImpl.java:133) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.constructDialect(DialectFactoryImpl.java:74) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:51) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:137) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:88) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:259) ~[hibernate-core-5.2.10.Final.jar:5.2.10.Final]
... 32 common frames omitted
これは私のpom.xmlある
<?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>ca.naijaconnects</groupId>
<artifactId>naijaconnectsProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>naijaconnectsProject</name>
<description>none</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.M3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding
>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-servlet-api</artifactId>
<version>8.0.15</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.persistence/persistence-api -->
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-rest-core</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-
starter-data-jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-libs-release</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
これは私のアプリケーションを実行する
package ca.naijaconnects.naijaconnectsproject;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
@SpringBootApplication
public class NaijaconnectsProjectApplication {
public static void main(String[] args) {
ApplicationContext factory = new AnnotationConfigApplicationContext();
SpringApplication.run(NaijaconnectsProjectApplication.class, args);
}
}
は、これは私の設定ファイルです
package ca.naijaconnects.naijaconnectsproject.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import ca.naijaconnects.naijaconnectsproject.entity.UserLoginDetails;
@Configuration
@EnableJpaRepositories
public class ApplicationConfig
{
@Bean
public UserLoginDetails userLoginDetails()
{
return new UserLoginDetails();
}
}
これは私のコントローラ
ですpackage ca.naijaconnects.naijaconnectsproject.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import ca.naijaconnects.naijaconnectsproject.entity.UserLoginDetails;
import ca.naijaconnects.naijaconnectsproject.repo.UserLoginRepo;
@Controller
@RequestMapping(value="/testing")
public class NaijaConnectsController
{
@Autowired
UserLoginRepo userLoginRepo;
@SuppressWarnings("unchecked")
@RequestMapping(value = "/insertLogins", method = RequestMethod.POST)
public @ResponseBody List<UserLoginDetails> PostFormDataJSONArray() {
UserLoginDetails userLoginDetail = new UserLoginDetails();
userLoginDetail.setUserName("timisenco");
userLoginDetail.setUserPassword("[email protected]");
return (List<UserLoginDetails>) userLoginRepo.save(userLoginDetail);
}
}
これはこれは、レポ
package ca.naijaconnects.naijaconnectsproject.repo;
import java.util.List;
import javax.sql.DataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.data.jpa.repository.*;
import org.springframework.stereotype.Repository;
import ca.naijaconnects.naijaconnectsproject.entity.UserLoginDetails;
@org.springframework.data.rest.core.annotation.RepositoryRestResource(exported=false)
public interface UserLoginRepo extends JpaRepository<UserLoginDetails, String>
{
//UserLoginDetails findOne(String);
@SuppressWarnings("unchecked")
UserLoginDetails save(UserLoginDetails account);
//UserLoginDetails findByEmailAddress(EmailAddress emailAddress);
}
EDIT
application.properties
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost/naijaconnectsdb
spring.datasource.username=naijaConnects
[email protected]
spring.datasource.name=naijaconnectsdb
spring.jpa.hibernate.ddl-auto=null
spring.jpa.generate-ddl=true
spring.jpa.show-sql=true
spring.data.jpa.repositories.enabled=true
spring.jpa.database-platform=org.hibernate.dialect.MYSQL5Dialect
package ca.naijaconnects.naijaconnectsproject.entity;
import java.io.Serializable;
import javax.persistence.*;
import org.springframework.context.annotation.Bean;
@Entity
//@Table(name = "userlogindetails")
public class UserLoginDetails
{
@Id
@Column(name = "USER_NAME", nullable = false,columnDefinition="varchar2(40)")
private String userName;
@Column(name = "USER_Pawword", nullable = false,columnDefinition="varchar2(40)")
private String userPassword;
public UserLoginDetails()
{
}
@Bean
public String getUserName()
{
return userName;
}
@Bean
public void setUserName(String userName)
{
this.userName = userName;
}
@Bean
public String getUserPassword()
{
return userPassword;
}
@Bean
public void setUserPassword(String userPasword)
{
this.userPassword = userPassword;
}
}
ですそこに通常application.propertiesファイルが存在するSpring Bootアプリケーションで
Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [org.hibernate.dialect.MYSQL5Dialect] as strategy [org.hibernate.dialect.Dialect]
：
spring.datasourceを
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5DialectUPDATE 私はあなたのアプリケーションの性質は、以下のファイルを編集しました.driver-class-name = com.mysql.jdbc.Driver spring.datasource.url = JDBCます。mysql：// localhost /をnaijaconnectsdb spring.datasource.username = naijaConnects [email protected] spring.datasource.name = naijaconnectsdb spring.jpa.hibernate.ddl -auto =ヌル spring.jpa.generate-DDL =真 spring.jpa.show-SQL =真 spring.jpa.hibernate.naming-戦略= org.hibernate.cfg.ImprovedNamingStrategy spring.data.jpa。リポジトリ。enabled = true spring.jpa.database-platform = org.hibernate.dialect.MYSQL5Dialect – timisenco
私はこの行を追加しましたspring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialectしかし、同じエラーを表示しています – timisenco
同じエラーMYSQL5DialectまたはMySQL5Dialectを使用していますか？ – pleft