Category (xml,vo)

最新推荐文章于 2023-05-13 17:00:04 发布

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本文介绍了一级分类实体类Category的设计，包括属性cid、cname及与二级分类的关系集合csList，并展示了对应的Hibernate配置文件，详细说明了如何通过Hibernate进行对象关系映射。

package cn.itcast.shop.category.vo;

import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

import cn.itcast.shop.categorysecond1.vo.CategorySecond;

/*一级分类实体类*/
public class Category implements Serializable {
   private Integer cid;
   private String cname;
   //
   private Set<CategorySecond> csList=new HashSet<CategorySecond>();
   public Integer getCid() {
       return cid;
   }
   public void setCid(Integer cid) {
       this.cid = cid;
   }
   public String getCname() {
       return cname;
   }
   public void setCname(String cname) {
       this.cname = cname;
   }
   public Set<CategorySecond> getCsList() {
       return csList;
   }
   public void setCsList(Set<CategorySecond> csList) {
       this.csList = csList;
   }

}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
    <hibernate-mapping >
       <class name="cn.itcast.shop.category.vo.Category" table="category">
           <id name="cid">
               <generator class="native"></generator>
           </id>
           <property name="cname" ></property>
           <set name="csList" fetch="join" lazy="false" order-by="csid">
               <key column="cid"></key>
               <one-to-many class="cn.itcast.shop.categorysecond1.vo.CategorySecond" />
           </set>
       </class>
    </hibernate-mapping>