Java EclipseLink JPA使用非实体作为关系属性中的目标实体
在JUnit（版本4.12）中运行测试以下订单时，我遇到以下错误：Java EclipseLink JPA使用非实体作为关系属性中的目标实体,java,jpa,jakarta-ee,junit,eclipselink,Java,Jpa,Jakarta Ee,Junit,Eclipselink,在JUnit（版本4.12）中运行测试以下订单时，我遇到以下错误： Local Exception Stack: Exception [EclipseLink-30005] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException Exception Description: An exception w
Local Exception Stack:
Exception [EclipseLink-30005] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException
Exception Description: An exception was thrown while searching for persistence archives with ClassLoader: sun.misc.Launcher$AppClassLoader@2c7b84de
Internal Exception: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [snel-transport-test] failed.
Internal Exception: Exception [EclipseLink-7250] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.ValidationException
Exception Description: [class nl.cimsolutions.snel_transport.models.OrderLine] uses a non-entity [class nl.cimsolutions.snel_transport.models.Product] as target entity in the relationship attribute [field product].
at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionSearchingForPersistenceResources(PersistenceUnitLoadingException.java:127)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:107)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:177)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
at nl.cimsolutions.snel_transport.services.AbstractFacade.getEntityManagerFactory(AbstractFacade.java:31)
at nl.cimsolutions.snel_transport.services.AbstractFacade.find(AbstractFacade.java:77)
at controller.OrdersControllerTest.testAddOrder(OrdersControllerTest.java:345)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [snel-transport-test] failed.
@Entity
public class OrderLine implements Serializable {
private static final long serialVersionUID = 1L;
@TableGenerator(
name = "OrderLineGenerator",
allocationSize = 1,
initialValue = 1)
@Id
@GeneratedValue(strategy = GenerationType.TABLE,
generator="OrderLineGenerator")
private Long id;
@Column(name = "orderId")
private Long orderId;
@ManyToOne(targetEntity = nl.cimsolutions.snel_transport.models.Product.class)
@JoinColumn(name="productId")
private Product product;
private int amount;
//More code..
}
@Entity
public class Product {
@TableGenerator(
name = "ProductGenerator",
allocationSize = 1,
initialValue = 1)
@Id
@GeneratedValue(strategy = GenerationType.TABLE,
generator="ProductGenerator")
private Long id;
@Column(name="Name")
private String Name;
@Column(name="Price")
private Double Price;
@Column(name="code")
private String Code;
@OneToOne
@JoinColumn(name="categoryId")
private Category Categories;
@OneToMany(mappedBy = "product", targetEntity = nl.cimsolutions.snel_transport.models.OrderLine.class)
private List<OrderLine> orderLines;
public Product(){
}
public Product(Long Id, String name,String code, Double price, Category categories) {
super();
id = Id;
Name = name;
Price = price;
Code = code;
Categories = categories;
}
//More code..
}
@实体
公共类产品{
@表格生成器(
name=“ProductGenerator”，
allocationSize=1，
初始值=1）
@身份证
@GeneratedValue（策略=GenerationType.TABLE，
生成器=“产品生成器”）
私人长id；
@列（name=“name”）
私有字符串名称；
@列（name=“Price”）
私人双价；
@列（name=“code”）
私有字符串码；
@奥内托内
@JoinColumn（name=“categoryId”）
私人类别；
@OneToMany（mappedBy=“product”，targetEntity=nl.cimsolutions.snel\u transport.models.OrderLine.class）
私有列表命令行；
公共产品（）{
}
公共产品（长Id、字符串名称、字符串代码、双倍价格、类别）{
超级（）；
id=id；
名称=名称；
价格=价格；
代码=代码；
类别=类别；
}
//更多代码。。
}
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1"
xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="snel-transport" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>nl.cimsolutions.snel_transport.models.Orders</class>
<class>nl.cimsolutions.snel_transport.models.OrderLine</class>
<class>nl.cimsolutions.snel_transport.models.OrderList</class>
<class>nl.cimsolutions.snel_transport.models.Customer</class>
<class>nl.cimsolutions.snel_transport.models.Product</class>
<class>nl.cimsolutions.snel_transport.models.Category</class>
<class>nl.cimsolutions.snel_transport.models.Status</class>
<class>nl.cimsolutions.snel_transport.models.Truck</class>
<class>nl.cimsolutions.snel_transport.models.Route</class>
<!-- <jta-data-source>java:app/snel-transport</jta-data-source> -->
<!-- <exclude-unlisted-classes>false</exclude-unlisted-classes> -->
<properties>
<property
name="javax.persistence.schema-generation.database.action"
value="create" />
<property name="eclipselink.cache.shared.default" value="false"/>
<property name="eclipselink.canonicalmodel.subpackage"
value="dev" />
<property name="javax.persistence.sql-load-script-source"
value="META-INF/sql/insert.sql" />
<property name="javax.persistence.schema-generation-target"
value="database" />
<property name="javax.persistence.jdbc.driver"
value="org.postgresql.Driver" />
<property name="javax.persistence.jdbc.url"
value="jdbc:postgresql://localhost:5432/snel-transport" />
<property name="javax.persistence.jdbc.user" value="transport_user" />
<property name="javax.persistence.jdbc.password"
value="admin" />
<property name="javax.persistence.jdbc.show_sql" value="true" />
</properties>
</persistence-unit>
<persistence-unit name="snel-transport-test" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>nl.cimsolutions.snel_transport.models.Orders</class>
<class>nl.cimsolutions.snel_transport.models.OrderLine</class>
<class>nl.cimsolutions.snel_transport.models.OrderList</class>
<class>nl.cimsolutions.snel_transport.models.Customer</class>
<class>nl.cimsolutions.snel_transport.models.Product</class>
<class>nl.cimsolutions.snel_transport.models.Category</class>
<class>nl.cimsolutions.snel_transport.models.Status</class>
<class>nl.cimsolutions.snel_transport.models.Truck</class>
<class>nl.cimsolutions.snel_transport.models.Route</class>
<properties>
<property
name="javax.persistence.schema-generation.database.action"
value="drop-and-create" />
<property name="eclipselink.canonicalmodel.subpackage"
value="test" />
<property name="javax.persistence.sql-load-script-source"
value="META-INF/sql/insert.sql" />
<property name="javax.persistence.schema-generation-target"
value="database" />
<property name="javax.persistence.jdbc.driver"
value="org.postgresql.Driver" />
<property name="javax.persistence.jdbc.url"
value="jdbc:postgresql://localhost:5432/snel-transport-test" />
<property name="javax.persistence.jdbc.user" value="transport_user" />
<property name="javax.persistence.jdbc.password"
value="admin" />
<property name="driverClass" value="org.postgresql.Driver" />
</properties>
</persistence-unit>
</persistence>
org.eclipse.persistence.jpa.PersistenceProvider
nl.cimsolutions.snel_transport.models.Orders
nl.cimsolutions.snel_transport.models.OrderLine
nl.cimsolutions.snel_transport.models.OrderList
nl.cimsolutions.snel_transport.models.Customer
nl.cimsolutions.snel_transport.models.Product
nl.cimsolutions.snel_transport.models.Category
nl.cimsolutions.snel_transport.models.Status
nl.cimsolutions.snel_transport.models.Truck
nl.cimsolutions.snel_transport.models.Route
org.eclipse.persistence.jpa.PersistenceProvider
nl.cimsolutions.snel_transport.models.Orders
nl.cimsolutions.snel_transport.models.OrderLine
nl.cimsolutions.snel_transport.models.OrderList
nl.cimsolutions.snel_transport.models.Customer
nl.cimsolutions.snel_transport.models.Product
nl.cimsolutions.snel_transport.models.Category
nl.cimsolutions.snel_transport.models.Status
nl.cimsolutions.snel_transport.models.Truck
nl.cimsolutions.snel_transport.models.Route
@Entity产品订单行Product.javaOrderLine.javapersistence.xmlProduct.javamappedBy但我找不到解决我问题的办法。有人知道我如何解决这个问题吗？如果它在某个地方有效，但在另一个地方无效，则可能是类路径问题
在JUnit中运行时，请检查类路径，确保没有拾取其他非实体产品类文件，或者检查可能缺少产品的其他persistence.xml。还将EclipseLink logging设置为finest，因为它将在为持久化单元部署时显示每个类如果它在一个位置工作，而不是另一个位置，则可能是类路径问题 在JUnit中运行时，请检查类路径，确保没有拾取其他非实体产品类文件，或者检查可能缺少产品的其他persistence.xml。还将EclipseLink logging设置为finest，因为它将在为持久化单元部署每个类时显示错误 [class nl.cimsolutions.snel_transport.models.OrderLine]使用非实体[class nl.cimsolutions.snel_transport.models.Product]作为关系属性[field Product]中的目标实体 表示OrderLine中的product字段引用的产品不属于persistenceContext的一部分。通常发生这种情况的原因是未对产品调用EntityManager.persist（），并且没有自动将其持久化的Cascade.persist 很难想象这可能是一个类路径问题，但我看到了一些奇怪的事情。我认为您应该首先检查OrderLine.Product中与产品存储相关的持久化逻辑 错误 [class nl.cimsolutions.snel_transport.models.OrderLine]使用非实体[class nl.cimsolutions.snel_transport.models.Product]作为关系属性[field Product]中的目标实体 表示OrderLine中的product字段引用的产品不属于persistenceContext的一部分。通常发生这种情况的原因是未对产品调用EntityManager.persist（），并且没有自动将其持久化的Cascade.persist
很难想象这可能是一个类路径问题，但我看到了一些奇怪的事情。我认为您应该首先检查OrderLine.Product中与产品存储相关的持久化逻辑 如果它在某个位置工作，但在另一个位置不工作，则很可能是类路径问题。在JUnit中运行时，请检查类路径，确保没有拾取其他非实体产品类文件，或者检查可能缺少产品的其他persistence.xml。还将EclipseLink logging设置为finest，因为它将在为持久性单元部署类时显示每个类。@Chris谢谢，我确实有另一个persistence.xml文件。。如果你愿意，你可以把你的评论作为一个答案，这样我就可以接受它