复杂对象ibatis插入，属性为list，怎么一次性插入 -

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复杂对象ibatis插入，属性为list，怎么一次性插入

博客分类：

iBATIS C C++C#SQL

public class PfStuffInfoVo implements Serializable {
/** 信息Id */
private String infoId;
/** 项目Id */
private String proid;
/** 附件信息 */
private List<PfFileVo> fileList;

...

这是我的对象该怎么把fileList属性已插入，PfFileVo 有对应的表

貌似iBatis没有提供多个关联对象的同时插入

你需要再Service层调用多个DAO去做多个关联对象的插入操作

批处理在iBatis里是肯定有的

貌似叫batchUpdate方法

不记得了，这个你可以上网搜搜，答案很多的

iBatis3里貌似确实木有批量插入，很郁闷的说

回答者：clarck_913 - 2011-05-05 09:24:52

可以通过ibatis建立一对多的映射

POJO

Java code

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public class Customer { 
    private Long id; 
    private String name; 
    private String address; 
    private String postcode; 
    private String sex; 
    private List<Orders> orderlist = new ArrayList<Orders>(); 
 
    
public class Orders { 
    private Long id; 
    private String code; 
    private Long customerId; 
    private Customer customer;

Customer.xml

XML code

<!--

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<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd" > 
<sqlMap namespace="customer"> 
    <typeAlias alias="customer" type="com.lavasoft.ssi.domain.Customer"/> 

    <resultMap id="result_base" class="customer"> 
        <result property="id" column="id"/> 
        <result property="name" column="name"/> 
        <result property="address" column="address"/> 
        <result property="postcode" column="postcode"/> 
        <result property="sex" column="sex"/> 
    </resultMap> 
    <resultMap id="result" class="customer" extends="result_base"> 
        <result property="orderlist" column="id" select="orders.findByCustomerId"/> 
    </resultMap> 

    <insert id="insert" parameterClass="customer"> 
        insert into customer(address,postcode,sex,name) values(#address#,#postcode#,#sex#,#name#) 
        <selectKey keyProperty="id" resultClass="long"> 
            select LAST_INSERT_ID() 
        </selectKey> 
    </insert> 
    <select id="getById" parameterClass="long" resultMap="result_base"> 
        select * from customer where id = #value# 
    </select> 
    <select id="getWithCashById" parameterClass="long" resultMap="result"> 
        select * from customer where id = #value# 
    </select> 
    <select id="getWithCashByIdInnerjoin" parameterClass="long" resultClass="customer" resultMap="result"> 
        select c.* from customer c inner join orders o on c.id=o.customerId 
    </select> 


</sqlMap>

Orders.xml

XML code

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

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<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd" > 
<sqlMap namespace="orders"> 
    <typeAlias alias="orders" type="com.lavasoft.ssi.domain.Orders"/> 
    <resultMap id="result_base" class="orders"> 
        <result property="id" column="id"/> 
        <result property="code" column="code"/> 
        <result property="customerId" column="customerId"/> 
    </resultMap> 
    <resultMap id="result" class="orders" extends="result_base"> 
        <result property="customer" column="customerId" select="customer.getById"/> 
    </resultMap> 

    <insert id="insert" parameterClass="orders"> 
        insert into orders(id,code,customerId) values(#id#,#code#,#customerId#) 
        <selectKey keyProperty="id" resultClass="long"> 
            select LAST_INSERT_ID() 
        </selectKey> 
    </insert> 

    <select id="findByCustomerId" resultMap="result_base" parameterClass="long"> 
        select * from orders where customerId = #value# 
    </select> 
    <select id="getById" parameterClass="long" resultMap="result_base"> 
        select * from orders where id = #value# 
    </select> 
    <select id="getByIdWithCash" resultMap="result" resultClass="orders" parameterClass="long"> 
        select * from orders where id = #value# 
    </select> 

</sqlMap>

DAO

Java code

<!--

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public interface CustomerDAO { 
    public Long insert(Customer c); 
    public List<Customer> getById(Long id); 
    public List<Customer> getWithCashById(Long id); 
    public List<Customer> getWithCashByIdInnerjoin();     
}

public class CustomerDAOImpl extends SqlMapClientDaoSupport implements CustomerDAO { 

    public Long insert(Customer c) { 
        return (Long) getSqlMapClientTemplate().insert("customer.insert",c); 
    } 

    public List<Customer> getById(Long id) { 
        return getSqlMapClientTemplate().queryForList("customer.getById",id); 
    } 

    public List<Customer> getWithCashById(Long id) { 
        return getSqlMapClientTemplate().queryForList("customer.getWithCashById",id); 
    } 
    public List<Customer> getWithCashByIdInnerjoin(){ 
        return getSqlMapClientTemplate().queryForList("customer.getWithCashByIdInnerjoin"); 
    } 
}


public interface OrdersDAO { 
    public Long insert(Orders o); 
    public Orders getById(Long id); 
    public List<Orders> findByCustomerId(Long cid); 
    public List<Orders> getByIdWithCash(Long id); 
}
public class OrdersDAOImpl extends SqlMapClientDaoSupport implements OrdersDAO { 

    public Long insert(Orders o) { 
        return (Long) getSqlMapClientTemplate().insert("orders.insert", o); 
    } 

    public Orders getById(Long id) { 
        return (Orders) getSqlMapClientTemplate().queryForObject("orders.getById", id); 
    } 

    public List<Orders> findByCustomerId(Long cid) { 
        return getSqlMapClientTemplate().queryForList("orders.findByCustomerId", cid); 
    } 

    public List<Orders> getByIdWithCash(Long id) { 
        return (List<Orders>) getSqlMapClientTemplate().queryForList("orders.getByIdWithCash",id); 
    } 
}

test

Java code

<!--

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/** 
* Created by IntelliJ IDEA.<br> 
* <b>User</b>: leizhimin<br> 
* <b>Date</b>: 2008-6-15 22:50:15<br> 
* <b>Note</b>: 客户订单一对多模型：客户 
*/ 
public class CustomerDAOTest { 
    private CustomerDAO customerDAO = (CustomerDAO) ApplicationContextUtils.getApplicationContext().getBean("customerDAO"); 

    public void testInsert() { 
        System.out.println("--------insert(Customer c)--------"); 
        Customer c = new Customer(); 
        //fuck!竟然不支持级联保存！ 
//        Orders order1 = new Orders("o1"); 
//        Orders order2 = new Orders("o2"); 
//        c.getOrderlist().add(order1); 
//        c.getOrderlist().add(order2); 
        c.setName("多对一"); 
        c.setSex("M"); 
        c.setPostcode("450003"); 
        c.setAddress("郑州市花园路"); 
        Long pk = customerDAO.insert(c); 
        System.out.println("插入数据的ID=" + pk); 
    } 

    public void testGetById() { 
        System.out.println("--------getById(Long id)--------"); 
        Long pk = 1L; 
        List<Customer> list = customerDAO.getById(pk); 
        for (Customer c : list) { 
            System.out.println(c); 
        } 
    } 

    public void testGetWithCashById() { 
        System.out.println("--------getWithCashById(Long id)--------"); 
        Long pk = 1L; 
        List<Customer> list = customerDAO.getWithCashById(pk); 
        for (Customer c : list) { 
            System.out.println(c); 
        } 
    } 

    public void testGetWithCashByIdInnerjoin() { 
        System.out.println("--------getWithCashByIdInnerjoin()--------"); 
        List<Customer> list = customerDAO.getWithCashByIdInnerjoin(); 
        for (Customer c : list) { 
            System.out.println(c); 
        } 
    } 

    public static void main(String args[]) { 
        System.out.println("正在测试CustomerDAO"); 
        CustomerDAOTest customerDAOTest = new CustomerDAOTest(); 
        customerDAOTest.testInsert(); 
        customerDAOTest.testGetById(); 
        customerDAOTest.testGetWithCashById(); 
        customerDAOTest.testGetWithCashByIdInnerjoin(); 

    } 
}
 
public class OrdersDAOTest { 
    OrdersDAO ordersDAO = (OrdersDAO) ApplicationContextUtils.getApplicationContext().getBean("ordersDAO"); 

    public void testInsert() { 
        System.out.println("--------getWithCashById(Long id)--------"); 
        Orders o = new Orders("o1"); 
        o.setCustomerId(1L); 
        Long pk = ordersDAO.insert(o); 
        System.out.println("所插入数据ID=" + pk); 
    } 

    public void testGetById() { 
        System.out.println("--------getById(Long id)--------"); 
        Orders o = ordersDAO.getById(1L); 
        System.out.println("查询结果：" + o.toString()); 
    } 

    public void testFindByCustomerId() { 
        System.out.println("--------findByCustomerId(Long cid)--------"); 
        List<Orders> list = ordersDAO.findByCustomerId(1L); 
        for(Orders o : list){ 
            System.out.println(o); 
        } 
    } 
    public static void main(String args[]){ 
        System.out.println("正在测试OrderDAO"); 
        OrdersDAOTest ordersDAOTest = new OrdersDAOTest(); 
        ordersDAOTest.testInsert(); 
        ordersDAOTest.testGetById(); 
        ordersDAOTest.testFindByCustomerId(); 
        ordersDAOTest.testGetByIdWithCash(); 
    } 

    public void testGetByIdWithCash(){ 
        System.out.println("------------getByIdWithCash(Long id)----------"); 
        List<Orders> list = ordersDAO.getByIdWithCash(1L); 
        for(Orders o : list){ 
            System.out.println(o +"\n\t"+o.getCustomer().toString()); 
        } 
    } 

}

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2011-05-05 16:09
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