我创建了一个 JPA
项目,但在实体类中,Eclipse 显示以下错误:
在
persistence.xml
文件中列出了 "model.Address" 类,但没有映射
我应该如何将实体类映射到 persistence.xml
中?
这是 model.Address
实体类:
package model;
import java.io.Serializable;
import javax.persistence.*;
@Entity
public class Address implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE)
private long id;
private String city;
private String country;
private String province;
private String postalCode;
private String street;
// Getters/setters omitted for brevity.
}
这是 persistence.xml
文件:
<?xml version="1.0" encoding="UTF-8" ?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0"
>
<provider>org.eclipse.persistance.example.jpa.20.employee.annotations</provider>
<persistence-unit name="employee" transaction-type="RESOURCE_LOCAL">
<class>model.Employee</class>
<class>model.Address</class>
<properties>
<property name="javax.persistence.jdbc.driver" value="oracle.jdbc.OracleDriver" />
<property name="javax.persistence.jdbc.url" value="jdbc:oracle:thin:@localhost:1521:orcl" />
<property name="javax.persistence.jdbc.user" value="scott" />
<property name="javax.persistence.jdbc.password" value="tiger" />
</properties>
</persistence-unit>
</persistence>
persistence.xml
。 - Bozho