无法使用spring引导构建Hibernate SessionFactory jpa

起初我有一个名为person的模型。它运行良好，并在我的数据库中创建一个表。在添加一个具有外键的新模型后，我遇到了这个问题。我没有dbconfig.java。我只需要一个application.properties。喜欢这个。无法使用spring引导构建Hibernate SessionFactory jpa

spring.thymeleaf.mode=LEGACYHTML5 


# Database 
spring.datasource.url=jdbc:mysql://localhost:3306/db_example?useUnicode=true&characterEncoding=UTF-8 
spring.datasource.username=root 
spring.datasource.password=root 
spring.datasource.driver-class-name=com.mysql.jdbc.Driver 

# Hibernate 
spring.jpa.show-sql=true 
spring.jpa.hibernate.ddl-auto=create 
spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect 

spring.jackson.serialization.indent-output=true

这里是模型

person.java

import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 
import javax.persistence.NamedQuery; 

import lombok.AllArgsConstructor; 
import lombok.Data; 
import lombok.NoArgsConstructor; 

@Entity 
@NoArgsConstructor 
@AllArgsConstructor 
@Data 
@NamedQuery(name="Person.withNameAndcollegeNamedQuery", query = "select p from Person p where p.name=?1 and p.college=?2") 
public class Person { 
    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private Integer id; 
    private String name; 
    private Integer age; 
    private String college; 
    private String title; 
}

项目，JAVA 包com.example.model;

import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 
import javax.persistence.NamedQuery; 
import javax.persistence.OneToOne; 

import lombok.AllArgsConstructor; 
import lombok.Data; 
import lombok.NoArgsConstructor; 

@Entity 
@NoArgsConstructor 
@AllArgsConstructor 
@Data 
@NamedQuery(name="Record.withNmaeAndAddressNamedQuery", query = "select p from Record p where p.name=?1 and address=?2") 
public class Project { 
    @Id 
    @GeneratedValue(strategy=GenerationType.AUTO) 
    private Integer id; 
    private String projectName; 
    @OneToOne 
    private Person person; 
    private String description; 
    private Subject subject; 
    private String date; 
}

这是控制台日志：

13:30:30.244 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Included patterns for restart : [] 
13:30:30.247 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Excluded patterns for restart : [/spring-boot-starter/target/classes/, /spring-boot-autoconfigure/target/classes/, /spring-boot-starter-[\w-]+/, /spring-boot/target/classes/, /spring-boot-actuator/target/classes/, /spring-boot-devtools/target/classes/] 
13:30:30.248 [main] DEBUG org.springframework.boot.devtools.restart.ChangeableUrls - Matching URLs for reloading : [file:/E:/workspace-sts-3.8.4.RELEASE/demo/target/classes/] 

    . ____   _   __ _ _ 
/\\/___'_ __ _ _(_)_ __ __ _ \ \ \ \ 
(()\___ | '_ | '_| | '_ \/ _` | \ \ \ \ 
\\/ ___)| |_)| | | | | || (_| | )))) 
    ' |____| .__|_| |_|_| |_\__, |//// 
=========|_|==============|___/=/_/_/_/ 
:: Spring Boot ::  (v1.5.6.RELEASE) 

2017-08-11 13:30:30.474 INFO 12108 --- [ restartedMain] com.example.DemoApplication    : Starting DemoApplication on MoriatyC with PID 12108 (E:\workspace-sts-3.8.4.RELEASE\demo\target\classes started by cmh in E:\workspace-sts-3.8.4.RELEASE\demo) 
2017-08-11 13:30:30.475 INFO 12108 --- [ restartedMain] com.example.DemoApplication    : No active profile set, falling back to default profiles: default 
2017-08-11 13:30:30.652 INFO 12108 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot[email protected]2350e3c9: startup date [Fri Aug 11 13:30:30 CST 2017]; root of context hierarchy 
2017-08-11 13:30:32.149 INFO 12108 --- [ restartedMain] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http) 
2017-08-11 13:30:32.157 INFO 12108 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat] 
2017-08-11 13:30:32.158 INFO 12108 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.16 
2017-08-11 13:30:32.230 INFO 12108 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]  : Initializing Spring embedded WebApplicationContext 
2017-08-11 13:30:32.230 INFO 12108 --- [ost-startStop-1] o.s.web.context.ContextLoader   : Root WebApplicationContext: initialization completed in 1580 ms 
2017-08-11 13:30:32.350 INFO 12108 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/] 
2017-08-11 13:30:32.353 INFO 12108 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 
2017-08-11 13:30:32.353 INFO 12108 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 
2017-08-11 13:30:32.353 INFO 12108 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 
2017-08-11 13:30:32.354 INFO 12108 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 
2017-08-11 13:30:32.806 INFO 12108 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default' 
2017-08-11 13:30:32.820 INFO 12108 --- [ restartedMain] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [ 
    name: default 
    ...] 
2017-08-11 13:30:32.954 INFO 12108 --- [ restartedMain] org.hibernate.Version     : HHH000412: Hibernate Core {5.0.12.Final} 
2017-08-11 13:30:32.955 INFO 12108 --- [ restartedMain] org.hibernate.cfg.Environment   : HHH000206: hibernate.properties not found 
2017-08-11 13:30:32.956 INFO 12108 --- [ restartedMain] org.hibernate.cfg.Environment   : HHH000021: Bytecode provider name : javassist 
2017-08-11 13:30:32.988 INFO 12108 --- [ restartedMain] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final} 
2017-08-11 13:30:33.074 INFO 12108 --- [ restartedMain] org.hibernate.dialect.Dialect   : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect 
2017-08-11 13:30:33.232 WARN 12108 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : 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/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory 
2017-08-11 13:30:33.237 INFO 12108 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 
2017-08-11 13:30:33.249 INFO 12108 --- [ restartedMain] utoConfigurationReportLoggingInitializer : 

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. 
2017-08-11 13:30:33.257 ERROR 12108 --- [ restartedMain] o.s.boot.SpringApplication    : Application startup failed 

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 javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1078) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:857) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] 
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.6.RELEASE.jar:1.5.6.RELEASE] 
    at com.example.DemoApplication.main(DemoApplication.java:13) [classes/:na] 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_65] 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_65] 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_65] 
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_65] 
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.5.6.RELEASE.jar:1.5.6.RELEASE] 
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory 
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:954) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:882) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final] 
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353) ~[spring-orm-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:370) ~[spring-orm-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:359) ~[spring-orm-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE] 
    ... 21 common frames omitted 
Caused by: org.hibernate.MappingException: Could not determine type for: com.example.model.Subject, at table: project, for columns: [org.hibernate.mapping.Column(subject)] 
    at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:431) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:398) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.mapping.Property.isValid(Property.java:225) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:595) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.mapping.RootClass.validate(RootClass.java:265) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.boot.internal.MetadataImpl.validate(MetadataImpl.java:329) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:443) ~[hibernate-core-5.0.12.Final.jar:5.0.12.Final] 
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:879) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final] 
    ... 27 common frames omitted

问题出在哪里？

来源

2017-08-11 M Chen

首先所有你需要创建一个Subject实体，并与@OneToOne

映射到Projects实体添加

@OneToOne 
    private Subject subject;

y中我们的Project.java文件。

Subject。java的

package com.example.model; 

import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 

@Entity 
public class Subject { 
    @Id 
    @GeneratedValue(strategy=GenerationType.AUTO) 
    private Integer id; 
    //Other fields according to your need and setter/getter 

}

创建Subject实体后，您在@NamedQuery线得到一个错误在你Project实体，所以你必须改变你的命名查询，如下图所示（你可以根据你的需要改变字段）

@NamedQuery(name="Project.withProjectNameAndDescriptionQuery", query = "select p from Project p where p.projectName=?1 and p.description=?2")

来源

2017-08-11 07:02:55 CIPHER007

然后问题是Caused by: org.hibernate.MappingException: Could not determine type for: com.example.model.Subject, at table: project, for columns: [org.hibernate.mapping.Column(subject)]。您正在使用private Subject subject;转换为Project实体，并且列名称Subject未确定。因此如果Subject实体存在于您的实体包中，您需要@JoinColumn(name = "SUBJECT_ID")或者您也可以使用另一列进行映射。

@ManyToOne 
@JoinColumn(name = "CITY_ID") 
private Subject subject;

来源

2017-08-11 05:55:26 Sharma

您有映射异常。您正在使用类的Person实体中的字段subject。

Hibernate无法将具有复杂类型的字段映射到简单列。它必须是一个被定义和映射的实体。

所以，解决你的问题，定义类Subject作为一个实体，它映射到数据库您可能已经存在的主题表，然后用适当的注解该领域subject指定Person和Subject之间的关系（ @ManyToOne或@OneToOne）和任何@JoinColumn必要的。

通过我会建议明确（注释@Column定义映射列，如果休眠不生成架构的方式。这将让你改变你的变量名，而不需要更改数据库的列名

来源

2017-08-11 06:08:30 minioim

无法使用spring引导构建Hibernate SessionFactory jpa

回答

相关问题