复合主键在映射文件中的配置

1.表中字段的创建

CREATE
    TABLE StatisticsData
    (
        Date CHAR(10) COLLATE Chinese_PRC_CI_AS NOT NULL,
        Name VARCHAR(200) COLLATE Chinese_PRC_CI_AS NOT NULL,
        Count INT DEFAULT 0,
        PRIMARY KEY (Date, Name)
    )

 

2.映射文件StatisticsData.hbm.xml：

<?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="com.cfets.imix.pojo.StatisticsData" table="dbo.[StatisticsData]">   
        <composite-id>
                   <key-property name="date" column="Date" type="java.lang.String" length="10"/> 
                   <key-property name="name" column="Name" type="java.lang.String" length="200"/>
        </composite-id>
        <property name="count" type="java.lang.Integer">
                   <column name="Count" length="10"/>
        </property>
    </class>
</hibernate-mapping>