Question

将hibernate配置添加到我的应用程序并且无法启动服务器后，我得到以下错误。我创建了权利类。

在下面的屏幕截图中，您可以在左侧面板中看到com.userfront.domain包中存在PrimaryAccount类

启动ApplicationContext时出错。显示自动配置   报告使用＆＃39; debug＆＃39;重新运行您的应用程序启用。二〇一七年十一月一十八日   20：56：32.700 ERROR 8408 --- [主要]   o.s.boot.SpringApplication：应用程序启动失败

org.springframework.beans.factory.BeanCreationException：错误   创建名为＆entityManagerFactory＆＃39;的bean在类路径中定义   资源   [组织/ springframework的/引导/自动配置/ ORM / JPA / HibernateJpaAutoConfiguration.class]：   调用init方法失败;嵌套异常是   org.hibernate.AnnotationException：@OneToOne或@ManyToOne on   com.userfront.domain.PrimaryTransaction.PrimaryAccount引用一个   未知实体：com.userfront.domain.PrimaryAccount

我在primaryAccount实体类中有以下代码。

    package com.userfront.domain;

    import java.math.BigDecimal;
    import java.util.List;

    import javax.persistence.CascadeType;
    import javax.persistence.FetchType;
    import javax.persistence.GeneratedValue;
    import javax.persistence.GenerationType;
    import javax.persistence.Id;
    import javax.persistence.OneToMany;

    import com.fasterxml.jackson.annotation.JsonIgnore;

    public class PrimaryAccount {
        @Id
        @GeneratedValue(strategy = GenerationType.AUTO)
        private Long id;
        private int accountNumber;
        private BigDecimal accountBalance;

        @OneToMany(mappedBy ="primaryAccount", cascade=CascadeType.ALL, fetch = FetchType.LAZY)
        @JsonIgnore
        private List<PrimaryTransaction> primaryTransaction;

        public Long getId() {
            return id;
        }

        public void setId(Long id) {
            this.id = id;
        }

        public int getAccountNumber() {
            return accountNumber;
        }

        public void setAccountNumber(int accountNumber) {
            this.accountNumber = accountNumber;
        }

        public BigDecimal getAccountBalance() {
            return accountBalance;
        }

        public void setAccountBalance(BigDecimal accountBalance) {
            this.accountBalance = accountBalance;
        }

        public List<PrimaryTransaction> getPrimaryTransaction() {
            return primaryTransaction;
        }

        public void setPrimaryTransaction(List<PrimaryTransaction> primaryTransaction) {
            this.primaryTransaction = primaryTransaction;
        }

    }

的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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.userFront</groupId>
    <artifactId>UserFront</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>UserFront</name>
    <description>User front of a Online Banking Project</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.8.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>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>       

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>       

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>       

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>       

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

application.properties。

spring.datasource.url = jdbc:mysql://localhost:3306/OnlineBanking

spring.datasource.username = root
spring.datasource.password = root

spring.datasource.testWhileIdle = true
spring.datasource.validationQuery = SELECT 1

spring.jpa.show-sql = true

spring.jpa.hibernate.ddl-auto = update

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

帮我解决这个问题。

编辑：我已使用@Entity注释更新了PrimaryAccount类，但仍然存在以下错误

org.springframework.beans.factory.BeanCreationException：错误创建名为＆entityManagerFactory＆＃39;的bean在类路径中定义资源 [组织/ springframework的/引导/自动配置/ ORM / JPA / HibernateJpaAutoConfiguration.class]：调用init方法失败;嵌套异常是 org.hibernate.AnnotationException：mappedBy引用一个未知的目标实体属性： com.userfront.domain.PrimaryTransaction.primaryAccount in com.userfront.domain.PrimaryAccount.primaryTransaction

PrimaryTransaction.java

package com.userfront.domain;

import java.math.BigDecimal;
import java.util.Date;

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

@Entity
public class PrimaryTransaction {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private Date date;
    private String description;
    private String type;
    private String status;
    private double amount;
    private BigDecimal availableBalance;

    @ManyToOne
    @JoinColumn(name = "primary_account_id")
    private PrimaryAccount PrimaryAccount;

    public PrimaryTransaction() {  }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }

    public double getAmount() {
        return amount;
    }

    public void setAmount(double amount) {
        this.amount = amount;
    }

    public BigDecimal getAvailableBalance() {
        return availableBalance;
    }

    public void setAvailableBalance(BigDecimal availableBalance) {
        this.availableBalance = availableBalance;
    }
}

第二次修改：更正了PrimaryAccount类，其中＆＃39; primaryTransaction＆＃39;是去那里的主要交易＆＃39;这是班级名称。

@Entity
public class PrimaryAccount {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private int accountNumber;
    private BigDecimal accountBalance;

    @OneToMany(mappedBy ="PrimaryAccount", cascade=CascadeType.ALL, fetch = FetchType.LAZY)
    @JsonIgnore
    private List<PrimaryTransaction> PrimaryTransaction;

得到以下错误

org.springframework.beans.factory.BeanCreationException：错误创建名为＆entityManagerFactory＆＃39;的bean在类路径中定义资源 [组织/ springframework的/引导/自动配置/ ORM / JPA / HibernateJpaAutoConfiguration.class]：调用init方法失败;嵌套异常是 javax.persistence.PersistenceException：[PersistenceUnit：default] 无法构建Hibernate SessionFactory

第三编辑：

整个Stacktrace

 2017-11-18 23:35:11.538  WARN 12435 --- [           main] 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
2017-11-18 23:35:11.541  INFO 12435 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2017-11-18 23:35:11.551  INFO 12435 --- [           main] utoConfigurationReportLoggingInitializer : 

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-11-18 23:35:11.557 ERROR 12435 --- [           main] 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-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1078) ~[spring-context-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:857) ~[spring-context-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
    at com.userfront.UserFrontApplication.main(UserFrontApplication.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-5.0.12.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-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353) ~[spring-orm-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:370) ~[spring-orm-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:359) ~[spring-orm-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
    ... 16 common frames omitted
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.List, at table: user, for columns: [org.hibernate.mapping.Column(appointment_list)]
    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]
    ... 22 common frames omitted

第四编辑： Appointment.java

package com.userfront.domain;

import java.util.Date;

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

@Entity
public class Appointment {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private Date date;
    private String location;
    private String description;
    private boolean confirmed;

    @ManyToOne
    @JoinColumn(name="user_id")
    private User user;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public String getLocation() {
        return location;
    }

    public void setLocation(String location) {
        this.location = location;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public boolean isConfirmed() {
        return confirmed;
    }

    public void setConfirmed(boolean confirmed) {
        this.confirmed = confirmed;
    }

    public User getUser() {
        return user;
    }

    public void setUser(User user) {
        this.user = user;
    }

    @Override
    public String toString() {
        return "Appointment [id=" + id + ", date=" + date + ", location=" + location + ", description=" + description
                + ", confirmed=" + confirmed + ", user=" + user + "]";
    }

}

User.java

package com.userfront.domain;

import java.util.List;

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

@Entity
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name="userId", nullable = false, updatable = false)
    private Long userId;
    private String username;
    private String password;
    private String firstname;
    private String lastname;

    @Column(name="email", nullable = false, updatable = false)
    private String email;
    private String phone;

    private boolean enabled = true;

    private PrimaryAccount primaryAccount;
    private SavingsAccount savingsAccount;
    private List<Appointment> appointmentList;
    private List<Recipient> recipientList;
    public Long getUserId() {
        return userId;
    }
    public void setUserId(Long userId) {
        this.userId = userId;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getFirstname() {
        return firstname;
    }
    public void setFirstname(String firstname) {
        this.firstname = firstname;
    }
    public String getLastname() {
        return lastname;
    }
    public void setLastname(String lastname) {
        this.lastname = lastname;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public String getPhone() {
        return phone;
    }
    public void setPhone(String phone) {
        this.phone = phone;
    }
    public boolean isEnabled() {
        return enabled;
    }
    public void setEnabled(boolean enabled) {
        this.enabled = enabled;
    }
    public PrimaryAccount getPrimaryAccount() {
        return primaryAccount;
    }
    public void setPrimaryAccount(PrimaryAccount primaryAccount) {
        this.primaryAccount = primaryAccount;
    }
    public SavingsAccount getSavingsAccount() {
        return savingsAccount;
    }
    public void setSavingsAccount(SavingsAccount savingsAccount) {
        this.savingsAccount = savingsAccount;
    }
    public List<Appointment> getAppointmentList() {
        return appointmentList;
    }
    public void setAppointmentList(List<Appointment> appointmentList) {
        this.appointmentList = appointmentList;
    }
    public List<Recipient> getRecipientList() {
        return recipientList;
    }
    public void setRecipientList(List<Recipient> recipientList) {
        this.recipientList = recipientList;
    }
    @Override
    public String toString() {
        return "User [userId=" + userId + ", username=" + username + ", password=" + password + ", firstname="
                + firstname + ", lastname=" + lastname + ", email=" + email + ", phone=" + phone + ", enabled="
                + enabled + ", primaryAccount=" + primaryAccount + ", savingsAccount=" + savingsAccount
                + ", appointmentList=" + appointmentList + ", recipientList=" + recipientList + "]";
    }


}

Answer 1

您尚未在User实体中正确映射Entity Types，您应该向其添加Associations映射：

@Entity
public class User {

    ...

    @ManyToOne
    private PrimaryAccount primaryAccount;

    @ManyToOne
    private SavingsAccount savingsAccount;

    @OneToMany(mappedBy="user")
    private List<Appointment> appointmentList;

    @OneToMany // you may add [mappedBy] if it's bidirectional
    private List<Recipient> recipientList;

    ...
}

要避免这种映射异常，请明确注释所有字段，并且不要让ORM使用默认映射。

注意：

我在User.toString()和Appointment.toString()期间发现潜在的StackOverflowError，因为两者都会无限地互相称呼：

Appointment.toString() {...+ ", appointmentList=" + appointmentList...}` User.toString() {...", user=" + user + "]"...}

你应该摆脱其中一个。

Answer 2

PrimaryAccount类未使用@Entity批注进行批注。这可能是个问题。

尝试

 @Entity
 public class PrimaryAccount {

在主要帐户类中，mappedBy = primaryAccount 但是，PrimaryTransaction类中的变量名称为 PrimaryTransaction ，即大写字母P将其更改为小写，以便匹配

应该解决

嵌套异常是org.hibernate.AnnotationException：mappedBy引用未知的目标实体属性：

public class PrimaryAccount {

    @OneToMany(mappedBy ="**primaryAccount**", cascade=CascadeType.ALL, fetch = FetchType.LAZY)
    @JsonIgnore
    private List<PrimaryTransaction> primaryTransaction;

spring boot app中的错误添加实体和hibernate配置后无法启动tomcat

2 个答案: