出现错误 - 无法调用“org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert（java.sql.SQLException，String）”为空

问题描述 投票：0回答：1

我在 Spring Boot 3 中使用 java 21 和 oracle 21c 由自己的本地项目制作。我猜连接时遇到问题。错误是“java.lang.NullPointerException：无法调用“org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert（java.sql.SQLException，String）”，因为“org.hibernate.resource.transaction的返回值。 backend.jdbc.internal.JdbcIsolationDelegate.sqlExceptionHelper()”为空”

java.lang.NullPointerException: Cannot invoke "org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(java.sql.SQLException, String)" because the return value of "org.hibernate.resource.transaction.backend.jdbc.internal.JdbcIsolationDelegate.sqlExceptionHelper()" is null
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcIsolationDelegate.delegateWork(JdbcIsolationDelegate.java:116) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.getJdbcEnvironmentUsingJdbcMetadata(JdbcEnvironmentInitiator.java:290) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:123) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:77) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:130) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:238) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:215) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.boot.model.relational.Database.<init>(Database.java:45) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.getDatabase(InFlightMetadataCollectorImpl.java:221) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:189) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:171) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1431) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1502) ~[hibernate-core-6.5.2.Final.jar:6.5.2.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:75) ~[spring-orm-6.1.10.jar:6.1.10]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:390) ~[spring-orm-6.1.10.jar:6.1.10]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-6.1.10.jar:6.1.10]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-6.1.10.jar:6.1.10]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:366) ~[spring-orm-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1835) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1784) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:600) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:337) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:335) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:205) ~[spring-beans-6.1.10.jar:6.1.10]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:952) ~[spring-context-6.1.10.jar:6.1.10]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:624) ~[spring-context-6.1.10.jar:6.1.10]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.3.1.jar:3.3.1]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-3.3.1.jar:3.3.1]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:456) ~[spring-boot-3.3.1.jar:3.3.1]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:335) ~[spring-boot-3.3.1.jar:3.3.1]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1363) ~[spring-boot-3.3.1.jar:3.3.1]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1352) ~[spring-boot-3.3.1.jar:3.3.1]
at com.example.CRUD.CrudApplication.main(CrudApplication.java:10) ~[classes/:na]

2024-07-20T12:32:42.460+05:30 DEBUG 8912 --- [           main] o.hibernate.service.spi.ServiceBinding   : Overriding existing service binding [org.hibernate.engine.jdbc.connections.spi.ConnectionProvider]
2024-07-20T12:32:42.460+05:30 ERROR 8912 --- [           main] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] due to: Unable to resolve name [org.hibernate.dialect.Oracle12cDialect] as strategy [org.hibernate.dialect.Dialect]
2024-07-20T12:32:42.460+05:30  WARN 8912 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] due to: Unable to resolve name [org.hibernate.dialect.Oracle12cDialect] as strategy [org.hibernate.dialect.Dialect]
2024-07-20T12:32:42.464+05:30  INFO 8912 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2024-07-20T12:32:42.473+05:30  INFO 8912 --- [           main] .s.b.a.l.ConditionEvaluationReportLogger : 

Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled.
2024-07-20T12:32:42.493+05:30 ERROR 8912 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] due to: Unable to resolve name [org.hibernate.dialect.Oracle12cDialect] as strategy [org.hibernate.dialect.Dialect]

这是我的应用程序.属性-

spring.datasource.url=jdbc:oracle:thin:@localhost:1522/oracedb
spring.datasource.username=sys as sysdba
spring.datasource.password=sys123
spring.datasource.driver-class-name=oracle.jdbc.OracleDriver
spring.jpa.database-platform=org.hibernate.dialect.Oracle12cDialect
spring.jpa.hibernate.ddl-auto=none
#spring.jpa.show-sql=true
logging.level.org.hibernate=DEBUG

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.3.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>CRUD</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>CRUD</name>
    <description>CRUD operations</description>
    <url/>
    <licenses>
        <license/>
    </licenses>
    <developers>
        <developer/>
    </developers>
    <scm>
        <connection/>
        <developerConnection/>
        <tag/>
        <url/>
    </scm>
    <properties>
        <java.version>21</java.version>
    </properties>
    <dependencies>
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-starter-data-mongodb</artifactId>-->
<!--        </dependency>-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.oracle.database.jdbc</groupId>
            <artifactId>ojdbc11</artifactId>
            <scope>23.3.0.23.09</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.hibernate.orm</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>6.5.2.Final</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

数据库属性快照 -

enter image description here

请帮我解决这个问题。

java oracle spring-boot hibernate jdbc
1个回答
0
投票

您提供的代码是一个Java错误日志，特别与Hibernate相关，Hibernate是一个对象关系映射（ORM）框架。该错误表明数据库连接配置有问题。

主要错误信息是：

“无法创建请求的服务 [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]，因为：无法将名称 [org.hibernate.dialect.Oracle12cDialect] 解析为策略 [org.hibernate.dialect.Dialect]”

这表明 Hibernate 无法创建数据库连接环境，因为它无法将名称“org.hibernate.dialect.Oracle12cDialect”解析为方言策略。

方言是Hibernate的一个组件，负责与数据库通信。 在本例中，您似乎正在尝试使用“Oracle12cDialect”方言，该方言适用于 Oracle 数据库。

问题可能由以下几个原因造成：

  • 项目中不包含Oracle依赖。
  • 数据库连接配置不正确。
  • 方言与正在使用的数据库版本不兼容。

解决此问题需要检查数据库连接配置，并确保项目中包含Oracle依赖。 您可能还需要将方言更改为与所使用的数据库版本兼容的方言。

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