多对一关联映射
例如：员工与部门的关系（员工类型中存在一个部门的引用）部门
package com.chris.entity;/** * 部门 * @author Administrator * */public class Department {private int id;private String name;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}} 员工
package com.chris.entity;/** * 员工 * @author Administrator * */public class Employee {private int id;private String name;private Department department;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Department getDepartment() {return department;}public void setDepartment(Department department) {this.department = department;}} 部门映射文件：
<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping package="com.chris.entity"><class name="Department"><id name="id"><generator class="native"/></id><property name="name" unique="true"/></class></hibernate-mapping> 员工映射文件：
<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping package="com.chris.entity"><class name="Employee"><id name="id"><generator class="native"/></id><property name="name"/><!-- 部门属性映射 --><many-to-one name="department" column="department_id"/><!-- 多对一标签会在员工表中创建一个外键引用部门表的主键 --></class></hibernate-mapping>
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