Spring+Hibernate集成开发只1对多实例

数据库脚本：

 

create table customer (id varchar(10) primary key,name varchar(10));
create table address (id varchar(10) primary key,
                      detail varchar(10),
                      customerid varchar(10),
                      foreign key(customerid) references customer(id));
insert into customer values("1","john");
insert into customer values("2","marry");
insert into customer values("3","cathy");
insert into address values("1","beijng","1");
insert into address values("2","tianjin","1");
insert into address values("3","shanghai","2");
insert into address values("4","guangzhou","2");
insert into address values("5","chongqing","3");
insert into address values("6","shenzhen","3");

或者创建表后用如下语句增加外键约束
alter table address add constraint pf foreign key(customerid) references customer(id);

 

Domain对象

 

package ch9.SimpleOneToMany;

import java.util.HashSet;
import java.util.Set;

/** *//**
 * Customer generated by MyEclipse Persistence Tools
 */

public class Customer implements java.io.Serializable ...{

    // Fields

    private String id;

    private String name;

    private Set addresses = new HashSet(0);

    // Constructors

    /** *//** default constructor */
    public Customer() ...{
    }

    /** *//** minimal constructor */
    public Customer(String id) ...{
        this.id = id;
    }

    /** *//** full constructor */
    public Customer(String id, String name, Set addresses) ...{
        this.id = id;
        this.name = name;
        this.addresses = addresses;
    }

    // Property accessors

    public String getId() ...{
        return this.id;
    }

    public void setId(String id) ...{
        this.id = id;
    }

    public String getName() ...{
        return this.name;
    }

    public void setName(String name) ...{
        this.name = name;
    }

    public Set getAddresses() ...{
        return this.addresses;
    }

    public void setAddresses(Set addresses) ...{
        this.addresses = addresses;
    }

}

 

 

package ch9.SimpleOneToMany;

/** *//**
 * Address generated by MyEclipse Persistence Tools
 */

public class Address implements java.io.Serializable ...{

    // Fields

    private String id;

    private Customer customer;

    private String detail;

    // Constructors

    /** *//** default constructor */
    public Address() ...{
    }

    /** *//** minimal constructor */
    public Address(String id) ...{
        this.id = id;
    }

    /** *//** full constructor */
    public Address(String id, Customer customer, String detail) ...{
        this.id = id;
        this.customer = customer;
        this.detail = detail;
    }

    // Property accessors

    public String getId() ...{
        return this.id;
    }

    public void setId(String id) ...{
        this.id = id;
    }

    public Customer getCustomer() ...{
        return this.customer;
    }

    public void setCustomer(Customer customer) ...{
        this.customer = customer;
    }

    public String getDetail() ...{
        return this.detail;
    }

    public void setDetail(String detail) ...{
        this.detail = detail;
    }

}

 

hbm文件：

 

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="ch9.SimpleOneToMany.Customer" table="customer" catalog="spring">
        <id name="id" type="java.lang.String">
            <column name="id" length="10" />
            <generator class="assigned" />
        </id>
        <property name="name" type="java.lang.String">
            <column name="name" length="10" />
        </property>
        <set name="addresses" inverse="true" lazy="false">
            <key>
                <column name="customerid" length="10" />
            </key>
            <one-to-many class="ch9.SimpleOneToMany.Address" />
        </set>
    </class>
</hibernate-mapping>

 

 

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="ch9.SimpleOneToMany.Address" table="address" catalog="spring">
        <id name="id" type="java.lang.String">
            <column name="id" length="10" />
            <generator class="assigned" />
        </id>
        <many-to-one name="customer" class="ch9.SimpleOneToMany.Customer" lazy="false" >
            <column name="customerid" length="10" />
        </many-to-one>
        <property name="detail" type="java.lang.String">
            <column name="detail" length="10" />
        </property>
    </class>
</hibernate-mapping>

 

DAO接口：

 

package ch9.SimpleOneToMany;

import java.util.List;

public interface IDAO ...{
  public List getAllCustomer();
}

 

DAO实现：

 

package ch9.SimpleOneToMany;

import java.util.ArrayList;
import java.util.List;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class TestDAOImpl extends HibernateDaoSupport implements IDAO ...{


    public List getAllCustomer() ...{
        return getHibernateTemplate().find("from Customer");
        
    }

}

 

配置文件：

 

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">


<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
  <property name="driverClassName">
    <value>com.mysql.jdbc.Driver</value>
  </property>
  <property name="username">
    <value>root</value>
  </property>
  <property name="password">
    <value>1234</value>
  </property>
  <property name="url">
    <value>jdbc:mysql://localhost:3306/spring</value>
  </property>
</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
  <property name="dataSource">
    <ref bean="dataSource"/>
  </property>
  <property name="mappingResources">
    <list>
      <value>ch9/SimpleOneToMany/Address.hbm.xml</value>
      <value>ch9/SimpleOneToMany/Customer.hbm.xml</value>
    </list>
  </property>
  <property name="hibernateProperties">
    <props>
      <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
      <prop key="hibernate.show_sql">true</prop>
    </props>
  </property>
</bean>
 
  <bean id="testDAO" class="ch9.SimpleOneToMany.TestDAOImpl">
      <property name="sessionFactory">
        <ref bean="sessionFactory"/>
      </property>
  </bean>

</beans>

 

测试代码：

 

package ch9.SimpleOneToMany;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test ...{

    /** *//**
     * @param args
     */
    public static void main(String[] args) ...{
        ApplicationContext context=new ClassPathXmlApplicationContext("ch9/SimpleOneToMany/applicationContext.xml");
        TestDAOImpl testDAOImpl=(TestDAOImpl)context.getBean("testDAO");
       
    
        
        List result=new ArrayList();
        result=testDAOImpl.getAllCustomer();

        for (Iterator iter = result.iterator(); iter.hasNext();) ...{
            Customer element = (Customer) iter.next();
            System.out.println(element.getName()+element.getAddresses().size());
            Iterator iter1=element.getAddresses().iterator();
            while(iter1.hasNext())...{
               Address element1 = (Address) iter1.next();
                System.out.println("--"+element1.getDetail());
            }
        }    
        
     }

}

 

结果：

Hibernate: select customer0_.id as id1_, customer0_.name as name1_ from spring.customer customer0_
Hibernate: select addresses0_.customerid as customerid1_, addresses0_.id as id1_, addresses0_.id as id0_0_, addresses0_.customerid as customerid0_0_, addresses0_.detail as detail0_0_ from spring.address addresses0_ where addresses0_.customerid=?
Hibernate: select addresses0_.customerid as customerid1_, addresses0_.id as id1_, addresses0_.id as id0_0_, addresses0_.customerid as customerid0_0_, addresses0_.detail as detail0_0_ from spring.address addresses0_ where addresses0_.customerid=?
Hibernate: select addresses0_.customerid as customerid1_, addresses0_.id as id1_, addresses0_.id as id0_0_, addresses0_.customerid as customerid0_0_, addresses0_.detail as detail0_0_ from spring.address addresses0_ where addresses0_.customerid=?
john2
--tianjin
--beijng
marry2
--guangzhou
--shanghai
cathy2
--shenzhen
--chongqing