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我得到當我跑步時我的測試中的JUnit以下錯誤（4.12版本），使一個順序：的EclipseLink JPA使用非實體目標實體的關係屬性
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: [email protected]
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.
然而當我運行webapp時，它在我下訂單時工作。
下面你可以看到代碼：
OrderLine.java：
@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..
}
Product.java：
@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..
}
的persistence.xml：
<?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>
正如你可以看到我已經分享早期標記爲Product和OrderLine作爲使用@Entity註釋 Product.java和OrderLine.java的實體。我還列出了persistence.xml文件中的兩個類。
我可以在Product.java中刪除mappedBy修復問題，但我不想這樣做，因爲我不想創建額外的表。
我已經檢查了這些解決方案：
JPA EclipseLink uses a non-entity as target entity in the relationship attribute
EclipseLink - non Entity as target entity in the relationship attribute
但我無法找到的東西，會解決我的問題。任何人有線索如何解決這個問題？
如果它工作一個點，但不是另一個，它可能是一個類路徑問題。在JUnit中運行時檢查您的類路徑，您沒有收到其他非實體Product類文件，或者可能丟失了某個產品的其他persistence.xml文件。同時將EclipseLink日誌記錄設置爲最好，因爲它將顯示每個類，因爲它將其部署到持久性單元。 – Chris
@Chris謝謝我確實有另一個persistence.xml文件..如果你想要你可以發表你的評論作爲答案，所以我可以接受它作爲我的情況的解決方案。 – superkytoz