Java Hibernate映射异常,使用注释
我正在尝试使用Hibernate和MySQL。我创建了一些测试实例并试图保存它们,但遇到了一个错误 hibernate.MappingException:未知实体:…类别Java Hibernate映射异常,使用注释,java,mysql,hibernate,jpa,orm,Java,Mysql,Hibernate,Jpa,Orm,我正在尝试使用Hibernate和MySQL。我创建了一些测试实例并试图保存它们,但遇到了一个错误 hibernate.MappingException:未知实体:…类别 类别类如下所示: import javax.persistence.*; import java.util.Set; @Entity @Table(name = "categories_table") public class Category { @Id @Column private Strin
类别
类如下所示:
import javax.persistence.*;
import java.util.Set;
@Entity
@Table(name = "categories_table")
public class Category {
@Id
@Column
private String code;
@Column
private String name;
@OneToMany(mappedBy = "category")
private Set<Addon> addons;
import javax.persistence.*;
导入java.util.Set;
@实体
@表(name=“categories\u Table”)
公共类类别{
@身份证
@纵队
私有字符串码;
@纵队
私有字符串名称;
@OneToMany(mappedBy=“类别”)
私有集插件;
hibernate.cfg.xml文件如下所示:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/xa04?createDatabaseIfNotExist=true</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">password</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.hbm2ddl.auto">update</property>
</session-factory>
</hibernate-configuration>
com.mysql.jdbc.Driver
jdbc:mysql://localhost/xa04?createDatabaseIfNotExist=true
根
密码
org.hibernate.dialogue.mysqldialogue
更新
您需要使用包含完全限定类名或WildACRD的适当映射更新配置:
<hibernate-configuration>
<session-factory>
...
<mapping class="com.mypackage.Category" />
</session-factory>
</hibernate-configuration>
...
您需要使用包含完全限定类名或WildACRD的适当映射更新配置:
<hibernate-configuration>
<session-factory>
...
<mapping class="com.mypackage.Category" />
</session-factory>
</hibernate-configuration>
...
请参见:请参见: