当我编译我的 spring 项目时,出现以下错误。
在类路径资源 [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class] 中定义名称为“entityManagerFactory”的 bean 创建错误:调用 init 方法失败
我正在使用 STS Eclipse 和 MySql 数据库
我在 Application.Properties
中的连接字符串是
spring.datasource.url=jdbc:mysql://localhost:3306/stgdb
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update
详细错误如下
=================================================
2016-10-15 15:34:38.875[0;39m [31mERROR[0;39m [35m3700[0;39m [2m---[0;39m [2m[ main][0;39m [36mo.s.boot.SpringApplication [0;39m [2m:[0;39m 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:1583) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1076) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:851) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE]
at com.s2g.testrestapplication.TestRestApplication.main(TestRestApplication.java:10) [classes/:na]
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-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:882) ~[hibernate-entitymanager-5.0.11.Final.jar:5.0.11.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:362) ~[spring-orm-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE]
... 16 common frames omitted
Caused by: org.hibernate.exception.GenericJDBCException: Unable to obtain JDBC Connection
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.extract.internal.ExtractionContextImpl.getJdbcConnection(ExtractionContextImpl.java:65) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.extract.internal.ExtractionContextImpl.getJdbcDatabaseMetaData(ExtractionContextImpl.java:75) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.locateTableInNamespace(InformationExtractorJdbcDatabaseMetaDataImpl.java:339) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.getTable(InformationExtractorJdbcDatabaseMetaDataImpl.java:241) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.getTableInformation(DatabaseInformationImpl.java:105) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.internal.SchemaMigratorImpl.doMigrationToTargets(SchemaMigratorImpl.java:162) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.internal.SchemaMigratorImpl.doMigration(SchemaMigratorImpl.java:60) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:134) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:101) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:472) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:444) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:879) ~[hibernate-entitymanager-5.0.11.Final.jar:5.0.11.Final]
... 22 common frames omitted
Caused by: com.atomikos.jdbc.AtomikosSQLException: Connection pool exhausted - try increasing 'maxPoolSize' and/or 'borrowConnectionTimeout' on the DataSourceBean.
at com.atomikos.jdbc.AtomikosSQLException.throwAtomikosSQLException(AtomikosSQLException.java:46) ~[transactions-jdbc-3.9.3.jar:na]
at com.atomikos.jdbc.AbstractDataSourceBean.throwAtomikosSQLException(AbstractDataSourceBean.java:90) ~[transactions-jdbc-3.9.3.jar:na]
at com.atomikos.jdbc.AbstractDataSourceBean.throwAtomikosSQLException(AbstractDataSourceBean.java:85) ~[transactions-jdbc-3.9.3.jar:na]
at com.atomikos.jdbc.AbstractDataSourceBean.getConnection(AbstractDataSourceBean.java:347) ~[transactions-jdbc-3.9.3.jar:na]
at com.atomikos.jdbc.AbstractDataSourceBean.getConnection(AbstractDataSourceBean.java:394) ~[transactions-jdbc-3.9.3.jar:na]
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
at org.hibernate.tool.schema.extract.internal.ExtractionContextImpl.getJdbcConnection(ExtractionContextImpl.java:62) ~[hibernate-core-5.0.11.Final.jar:5.0.11.Final]
... 33 common frames omitted
==============================
Pom.xml file
<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>com.s2g.testrestapplication</groupId>
<artifactId>testrestapplication</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>TestRestApplication</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.RELEASE</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>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.opensaml</groupId>
<artifactId>opensaml-saml-api</artifactId>
<version>3.1.1</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jta-atomikos</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
我将从添加以下依赖项开始:
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.4.Final</version>
</dependency>
和
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.3.Final</version>
</dependency>
更新:或者简单地添加以下依赖项。
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
使用 Java 9 的人包含此依赖项:
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
添加依赖项并没有解决我的问题。
这个问题发生在我的最后,因为“附加”字段是“@Entity”类的一部分并且在数据库中不存在。
我从 @Entity 类中删除了附加字段并且它起作用了。
祝你好运。
我有 jdk-12.0.2.jdk,已经找到问题的解决方案,将依赖项添加到 pom.xml:
<!-- https://mvnrepository.com/artifact/javax.xml.bind/jaxb-api -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.javassist/javassist -->
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.25.0-GA</version>
</dependency>
我怀疑 hibernate-core
和 hibernate-entitymanager
依赖项的 jar 文件已损坏或未在您的计算机上正确安装。
我建议您从您的 Maven 本地存储库中删除名为 hibernate-core
和 hibernate-entitymanager
的文件夹,然后 Maven 将重新安装它们。
Maven 本地存储库的默认位置是 Windows 中的 C:\Documents and Settings\[USERNAME]\.m2
或 Linux/Mac 中的 ~/.m2
。
例如,在我的情况下,删除以下任何注释都会导致显示错误消息“entityManagerFactory”。
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
或者
@ManyToMany(targetEntity=listOfObject_x.class)
添加缺少的注释后,错误消息消失。
package mypackage_unameit;
import javax.persistence.PrePersist;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import lombok.Data;
@Data
@Entity
public class Someclasss {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
@NotNull
@Size(min=5, message="Name must be at least 5 characters long")
private String name;
private Date createdAt;
@ManyToMany(targetEntity=listOfObject_x.class)
@Size(min=1, message="You must choose at least 1 ingredient")
private List<listOfObject_x> = new ArrayList<>();
@PrePersist
void createdAt() {
this.createdAt = new Date();
}
}
我通过将 spring 依赖项版本从 2.0.4 更新到 2.1.6 来解决我的问题
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
至
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
对于那些不使用 JPA 而更喜欢排除 entityManagerFactory 并使用 Spring Data JDBC 或 Spring JDBC 的人可以排除 bean 以避免异常
@SpringBootApplication(exclude = {HibernateJpaAutoConfiguration.class})
对于那些使用 Gradle 而不是 Maven 的人,请将其添加到构建文件中的依赖项中:
compile('javax.xml.bind:jaxb-api:2.3.0')
就我而言,这是由于 Intellij IDEA 默认将 Java 11 设置为默认项目 SDK,但项目是在 Java 8 中实现的。我在文件 -> 项目结构 -> 项目中更改了“项目 SDK”(在项目设置中)
当我们映射一列时,我们要注意被映射的对面列的名称,例如:
/*users*/
@OneToMany(mappedBy = "partModel")
private List<UsersModel> usersModels;
/*parts*/
@ManyToOne
private PartModel partModel;
在这里查看 postModel。***
我能够通过将最大池大小值从 1 更改为 2 来解决问题
spring.datasource.hikari.maximum-pool-size=2
尝试使用 @EnableTransactionManagement 注释该类。我遇到了同样的问题,通过添加它得到了解决。
@EnableTransactionManagement
public class ConfigurationBean {
}
如果您使用 JDK 1.8.0_201 或最新版本,请尝试使用较旧的 JDK。
我对 JDK1.8.0_201 有同样的问题,但是它可以与 JDK1.8.0_101 一起使用而无需任何代码更改。
我通过在模型中添加实现 Serializable 解决了这个问题。
@Entity
@Table(name="Model_Rest")
@IdClass(Model_Rest.class)
public class Model_Rest implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
*
*/
//@GeneratedValue(strategy = GenerationType.AUTO)
//@Column(columnDefinition="id")
@Id
private String login;
@Id
private String password;
@Autowired
public String getLogin() {
return login;
}
@Autowired
public void setLogin(String login) {
this.login = login;
}
@Autowired
public String getPassword() {
return password;
}
@Autowired
public void setPassword(String password) {
this.password = password;
}
public Model_Rest() {
// TODO Auto-generated constructor stub
}
public Model_Rest(String login, String password) {
this.login = login;
this.password = password;
}
@Override
public String toString() {
return "Model_Rest [login=" + login + ", password=" + password + "]";
}
}
例如,当您提供错误的数据库名称时,此错误也可能与“spring.datasource.url”中有错误有关
对我来说,这是另一个错误的结果
org.postgresql.util.PSQLException:致命:用户密码验证失败
这意味着您只需要查看您的身份验证凭据
我的 Eclipse Luna 也有同样的问题。我发现我使用的是 JDK12 和 Java 1.8。我把JDK换成JDK8,问题就解决了。如果您想在 Eclipse 中检查您的 JDK,请访问
Window-> Preferences-> Java- >Installed JREs
并检查它们是否与您的项目兼容。祝你好运!
对我来说,它是 application.properties 上的数据库名称。当我提供正确的名称时,它工作正常。
谁还有同样的问题。请在 application.properties 中添加以下行
# The SQL dialect makes Hibernate generate better SQL for the chosen database
## I am using Mysql8 so I have declared MySQL8Dialect if you have other versions just add ## that version number
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL8Dialect
就我而言,问题是多方面的,并且与 AWS 有关:
正如@Tareq Islam 指出的那样,在 application.properties 中设置方言很有帮助。我用于 MySQL 5.6: spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL55Dialect 之后的第二个问题是由于 SSL 连接加密的更改,JDBC 无法连接到服务器。我在帮助下修复了它
SSLHandShakeException No Appropriate Protocol
但我需要通过设置为 /etc/java-11-openjdk/security/java.security 来启用 TLS1.0
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 1024, EC keySize < 224, 3DES_EDE_CBC, anon, NULL
就我而言,我在 application.properties 中添加了以下行,问题出在 Oracle 11g DB 驱动程序中
spring.jpa.database-platform=org.hibernate.dialect.OracleDialect
添加依赖项也没有解决我的问题。
这个问题发生在我的最后,因为 mysql 中不存在 spring.datasource.url=jdbc:mysql://localhost:3306/myapplication
中的数据库 myapplication
。
我手动创建了数据库,重新启动了应用程序并且它工作了。
使用@Id。为我工作。否则我会抛出错误。这取决于你的实体类或存储库中是否缺少任何东西
添加此依赖项后,我的错误得到解决。
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.0.16.Final</version>
</dependency>
尝试更改弹簧版本。我有同样的问题,这对我有用
我通过为附加字段定义反向关系注释来解决我的问题
就我而言,我在尝试使 Proguard + Spring Boot 2 工作时遇到了这个错误。
将 -dontusemixedcaseclassnames
添加到 proguard.conf 可以修复它。
在我们的例子中,我们在 .properties 文件中有一些额外的行,新图像不需要这些行。
spring.jpa.properties.hibernate.cache.use_second_level_cache=true
显然,它没有尝试加载的实体。
如果没有任何效果,那么我有一个解决方案 @Access(value=AccessType.FIELD) 在您使用 @Entity 之后将这一行添加到模型类下,然后在定义 id 时添加该类和类之后,并且一直使用上述行。
不定期副业成功案例分享
spring-boot-starter-data-jpa
中,我收到以下错误。 anotepad.com/notes/wpjr5ghibernate-entitymanager
现在已弃用。改用(仅)hibernate-core
。