java - 将我的模型定义为实体后应用程序无法启动
java - Application fails to start after defining my models as entities
我是 Spring Boot 的新手，想构建一个送餐服务 API。该应用程序运行得非常好，但是当我创建实体以添加数据库功能时，该应用程序停止了 运行ning。我尝试调试代码，但不确定问题出在哪里。
这是我尝试 运行 应用程序后的日志。
2022-04-28 11:11:15.381 INFO 18796 --- [ main] c.s.f.FoodDeliveryApplication : No active profile set, falling back to 1 default profile: "default"
2022-04-28 11:11:16.197 INFO 18796 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-04-28 11:11:16.220 INFO 18796 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 10 ms. Found 0 JPA repository interfaces.
2022-04-28 11:11:17.163 INFO 18796 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2022-04-28 11:11:17.176 INFO 18796 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2022-04-28 11:11:17.177 INFO 18796 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.62]
2022-04-28 11:11:17.356 INFO 18796 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2022-04-28 11:11:17.357 INFO 18796 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1901 ms
2022-04-28 11:11:17.424 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-04-28 11:11:17.666 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2022-04-28 11:11:17.682 INFO 18796 --- [ main] o.s.b.a.h2.H2ConsoleAutoConfiguration : H2 console available at '/h2-console'. Database available at 'jdbc:h2:mem:testdb'
2022-04-28 11:11:17.977 INFO 18796 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-04-28 11:11:18.038 INFO 18796 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.8.Final
2022-04-28 11:11:18.267 INFO 18796 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-04-28 11:11:18.461 INFO 18796 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2022-04-28 11:11:18.827 ERROR 18796 --- [ main] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: [PersistenceUnit:
default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order,
for columns: [org.hibernate.mapping.Column(ordered_items)]
2022-04-28 11:11:18.828 WARN 18796 --- [ 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]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
2022-04-28 11:11:18.828 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2022-04-28 11:11:18.832 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2022-04-28 11:11:18.834 INFO 18796 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-04-28 11:11:18.859 INFO 18796 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-04-28 11:11:18.897 ERROR 18796 --- [ 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]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean[=11=](AbstractBeanFactory.java:335) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.19.jar:5.3.19]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.19.jar:5.3.19]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.19.jar:5.3.19]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.7.jar:2.6.7]
at com.springboot.fooddelivery.FoodDeliveryApplication.main(FoodDeliveryApplication.java:10) ~[classes/:na]
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:421) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.19.jar:5.3.19]
... 16 common frames omitted
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:515) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:482) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.Property.isValid(Property.java:231) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:627) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.RootClass.validate(RootClass.java:267) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.boot.internal.MetadataImpl.validate(MetadataImpl.java:359) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:314) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:471) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1498) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.19.jar:5.3.19]
... 20 common frames omitted
这些是我创建的 2 个实体
Dish.java
package com.springboot.fooddelivery.Models;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class Dish {
@Id
@GeneratedValue
private int DishId;
private String DishName;
private String DishCategory;
private double DishPrice;
private String DishDesc;
public Dish() {
super();
}
public Dish(int DishId, String DishName, String DishCategory, double DishPrice, String DishDesc) {
this.DishId = DishId;
this.DishName = DishName;
this.DishCategory = DishCategory;
this.DishPrice = DishPrice;
this.DishDesc = DishDesc;
}
public int getDishId() {
return DishId;
}
public void setDishId(int DishId) {
this.DishId = DishId;
}
public String getDishName() {
return DishName;
}
public void setDishName(String DishName) {
this.DishName = DishName;
}
public String getDishCategory() {
return DishCategory;
}
public void setDishCategory(String DishCategory) {
this.DishCategory = DishCategory;
}
public double getDishPrice() {
return DishPrice;
}
public void setDishPrice(double DishPrice) {
this.DishPrice = DishPrice;
}
public String getDishDesc() {
return DishDesc;
}
public void setDishDesc(String DishDesc) {
this.DishDesc = DishDesc;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + DishId;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Dish other = (Dish) obj;
if (DishId != other.DishId) {
return false;
}
return true;
}
@Override
public String toString() {
return String.format("Dish[DishId=%s, DishName=%s, DishCategory=%s, DishPrice=%s, DishDesc=%s]",
DishId, DishName, DishCategory, DishPrice, DishDesc);
}
}
Order.java
package com.springboot.fooddelivery.Models;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class Order {
@Id
@GeneratedValue
private int orderId;
private List<Dish> orderedItems;
private float orderTotal;
private String deliveryAddress;
public Order() {
super();
}
public Order(int orderId, List<Dish> orderedItems, float orderTotal, String deliveryAddress) {
this.orderId = orderId;
this.orderedItems = orderedItems;
this.orderTotal = orderTotal;
this.deliveryAddress = deliveryAddress;
}
public int getOrderId() {
return orderId;
}
public void setOrderId(int orderId) {
this.orderId = orderId;
}
public List<Dish> getOrderedItems() {
return orderedItems;
}
public void setOrderedItems(List<Dish> orderedItems) {
this.orderedItems = orderedItems;
}
public float getOrderTotal() {
return orderTotal;
}
public void setOrderTotal(float orderTotal) {
this.orderTotal = orderTotal;
}
public String getDeliveryAddress() {
return deliveryAddress;
}
public void setDeliveryAddress(String deliveryAddress) {
this.deliveryAddress = deliveryAddress;
}
@Override
public int hashCode() {
final int prime = 43;
int result = 1;
result = prime * result + orderId;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Order other = (Order) obj;
if (orderId != other.orderId) {
return false;
}
return true;
}
}
这是我的 application.properties 文件
spring.datasource.url=jdbc:h2:mem:testdb
spring.data.jpa.repositories.bootstrap-mode=default
spring.h2.console.enabled=true
spring.jpa.show-sql=true
logging.level.org.springframework.web=INFO
这是我的 pom.xml 文件
<?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>2.6.7</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.springboot</groupId>
<artifactId>food-delivery</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>food-delivery</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>18</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</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-security</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
您应该解决以下两个问题
1.私有 List<Dish> orderedItems 未映射
从你的日志来看很清楚org.hibernate.MappingException: Could not determine type for: java.util.List。
@OneToMany(cascade = CascadeType.ALL, orphanRemoval = true)
private List<Dish> orderedItems = new ArrayList<>();
更多信息 - https://vladmihalcea.com/the-best-way-to-map-a-onetomany-association-with-jpa-and-hibernate/
2。您使用 order 作为您的实体名称，实际上，order 是一个 SQL 保留字
@Entity(name = "MyOrder")
public class Order {
//TODO
}
更多信息 - https://www.drupal.org/docs/develop/coding-standards/list-of-sql-reserved-words
和 JPA/Hibernate can't create Entity called Order
我是 Spring Boot 的新手，想构建一个送餐服务 API。该应用程序运行得非常好，但是当我创建实体以添加数据库功能时，该应用程序停止了 运行ning。我尝试调试代码，但不确定问题出在哪里。 这是我尝试 运行 应用程序后的日志。
2022-04-28 11:11:15.381 INFO 18796 --- [ main] c.s.f.FoodDeliveryApplication : No active profile set, falling back to 1 default profile: "default"
2022-04-28 11:11:16.197 INFO 18796 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2022-04-28 11:11:16.220 INFO 18796 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 10 ms. Found 0 JPA repository interfaces.
2022-04-28 11:11:17.163 INFO 18796 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2022-04-28 11:11:17.176 INFO 18796 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2022-04-28 11:11:17.177 INFO 18796 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.62]
2022-04-28 11:11:17.356 INFO 18796 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2022-04-28 11:11:17.357 INFO 18796 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1901 ms
2022-04-28 11:11:17.424 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-04-28 11:11:17.666 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2022-04-28 11:11:17.682 INFO 18796 --- [ main] o.s.b.a.h2.H2ConsoleAutoConfiguration : H2 console available at '/h2-console'. Database available at 'jdbc:h2:mem:testdb'
2022-04-28 11:11:17.977 INFO 18796 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2022-04-28 11:11:18.038 INFO 18796 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.6.8.Final
2022-04-28 11:11:18.267 INFO 18796 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2022-04-28 11:11:18.461 INFO 18796 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.H2Dialect
2022-04-28 11:11:18.827 ERROR 18796 --- [ main] j.LocalContainerEntityManagerFactoryBean : Failed to initialize JPA EntityManagerFactory: [PersistenceUnit:
default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order,
for columns: [org.hibernate.mapping.Column(ordered_items)]
2022-04-28 11:11:18.828 WARN 18796 --- [ 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]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
2022-04-28 11:11:18.828 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2022-04-28 11:11:18.832 INFO 18796 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2022-04-28 11:11:18.834 INFO 18796 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-04-28 11:11:18.859 INFO 18796 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-04-28 11:11:18.897 ERROR 18796 --- [ 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]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean[=11=](AbstractBeanFactory.java:335) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1154) ~[spring-context-5.3.19.jar:5.3.19]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:908) ~[spring-context-5.3.19.jar:5.3.19]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.19.jar:5.3.19]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) ~[spring-boot-2.6.7.jar:2.6.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.7.jar:2.6.7]
at com.springboot.fooddelivery.FoodDeliveryApplication.main(FoodDeliveryApplication.java:10) ~[classes/:na]
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:421) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1863) ~[spring-beans-5.3.19.jar:5.3.19]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.3.19.jar:5.3.19]
... 16 common frames omitted
Caused by: org.hibernate.MappingException: Could not determine type for: java.util.List, at table: order, for columns: [org.hibernate.mapping.Column(ordered_items)]
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:515) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:482) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.Property.isValid(Property.java:231) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:627) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.mapping.RootClass.validate(RootClass.java:267) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.boot.internal.MetadataImpl.validate(MetadataImpl.java:359) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:314) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:471) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1498) ~[hibernate-core-5.6.8.Final.jar:5.6.8.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.19.jar:5.3.19]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.19.jar:5.3.19]
... 20 common frames omitted
这些是我创建的 2 个实体 Dish.java
package com.springboot.fooddelivery.Models;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class Dish {
@Id
@GeneratedValue
private int DishId;
private String DishName;
private String DishCategory;
private double DishPrice;
private String DishDesc;
public Dish() {
super();
}
public Dish(int DishId, String DishName, String DishCategory, double DishPrice, String DishDesc) {
this.DishId = DishId;
this.DishName = DishName;
this.DishCategory = DishCategory;
this.DishPrice = DishPrice;
this.DishDesc = DishDesc;
}
public int getDishId() {
return DishId;
}
public void setDishId(int DishId) {
this.DishId = DishId;
}
public String getDishName() {
return DishName;
}
public void setDishName(String DishName) {
this.DishName = DishName;
}
public String getDishCategory() {
return DishCategory;
}
public void setDishCategory(String DishCategory) {
this.DishCategory = DishCategory;
}
public double getDishPrice() {
return DishPrice;
}
public void setDishPrice(double DishPrice) {
this.DishPrice = DishPrice;
}
public String getDishDesc() {
return DishDesc;
}
public void setDishDesc(String DishDesc) {
this.DishDesc = DishDesc;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + DishId;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Dish other = (Dish) obj;
if (DishId != other.DishId) {
return false;
}
return true;
}
@Override
public String toString() {
return String.format("Dish[DishId=%s, DishName=%s, DishCategory=%s, DishPrice=%s, DishDesc=%s]",
DishId, DishName, DishCategory, DishPrice, DishDesc);
}
}
Order.java
package com.springboot.fooddelivery.Models;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class Order {
@Id
@GeneratedValue
private int orderId;
private List<Dish> orderedItems;
private float orderTotal;
private String deliveryAddress;
public Order() {
super();
}
public Order(int orderId, List<Dish> orderedItems, float orderTotal, String deliveryAddress) {
this.orderId = orderId;
this.orderedItems = orderedItems;
this.orderTotal = orderTotal;
this.deliveryAddress = deliveryAddress;
}
public int getOrderId() {
return orderId;
}
public void setOrderId(int orderId) {
this.orderId = orderId;
}
public List<Dish> getOrderedItems() {
return orderedItems;
}
public void setOrderedItems(List<Dish> orderedItems) {
this.orderedItems = orderedItems;
}
public float getOrderTotal() {
return orderTotal;
}
public void setOrderTotal(float orderTotal) {
this.orderTotal = orderTotal;
}
public String getDeliveryAddress() {
return deliveryAddress;
}
public void setDeliveryAddress(String deliveryAddress) {
this.deliveryAddress = deliveryAddress;
}
@Override
public int hashCode() {
final int prime = 43;
int result = 1;
result = prime * result + orderId;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Order other = (Order) obj;
if (orderId != other.orderId) {
return false;
}
return true;
}
}
这是我的 application.properties 文件
spring.datasource.url=jdbc:h2:mem:testdb
spring.data.jpa.repositories.bootstrap-mode=default
spring.h2.console.enabled=true
spring.jpa.show-sql=true
logging.level.org.springframework.web=INFO
这是我的 pom.xml 文件
<?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>2.6.7</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.springboot</groupId>
<artifactId>food-delivery</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>food-delivery</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>18</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</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-security</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
您应该解决以下两个问题
1.私有 List<Dish> orderedItems 未映射
从你的日志来看很清楚org.hibernate.MappingException: Could not determine type for: java.util.List。
@OneToMany(cascade = CascadeType.ALL, orphanRemoval = true)
private List<Dish> orderedItems = new ArrayList<>();
更多信息 - https://vladmihalcea.com/the-best-way-to-map-a-onetomany-association-with-jpa-and-hibernate/
2。您使用 order 作为您的实体名称，实际上，order 是一个 SQL 保留字
@Entity(name = "MyOrder")
public class Order {
//TODO
}
更多信息 - https://www.drupal.org/docs/develop/coding-standards/list-of-sql-reserved-words 和 JPA/Hibernate can't create Entity called Order