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开发框架hibernate3.0开发实例

王朝other·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

建议是有一点点是一点点基础的人又没有hibernate基础和经验的人比较适合(所谓一点点基础是最起码不要我介绍一些配置文件的什么的.).注重我用的JDBC驱动com.inet.tds.TdsDriver

大家一起努力学习吧.

建立PO对象

建PO对象Customer、Order以及它们的hibernate配置文件

/*

* Created on 2005-10-12

*

* TODO To change the template for this generated file go to

* Window - Preferences - Java - Code Style - Code Templates

*/

package testdemo;

import java.util.HashSet;

import java.util.Set;

/**

* @author liuzj

*

* TODO To change the template for this generated type comment go to Window -

* Preferences - Java - Code Style - Code Templates

*/

public class Customer {

private int id;

private String username;

private String passWord;

private Set orders = new HashSet();

public Customer() {

}

public Customer(String username, String password, Set orders) {

this.username = username;

this.password = password;

this.orders = orders;

}

public int getId() {

return id;

}

public String getPassword() {

return password;

}

public String getUsername() {

return username;

}

public Set getOrders() {

return orders;

}

public void setId(int id) {

this.id = id;

}

public void setPassword(String password) {

this.password = password;

}

public void setUsername(String username) {

this.username = username;

}

public void setOrders(Set orders) {

this.orders = orders;

}

}

<?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

<class name="testdemo.Customer" table="CUSTOMER" dynamic-insert="true" dynamic-update="true"

<id name="id" column="ID"

<generator class="increment" /

</id

<property name="username" column="USERNAME" /

<property name="password" column="PASSWORD" /

<set

name="orders"

inverse="true"

cascade="save-update"

<key column="CUSTOMER_ID" /

<one-to-many class="testdemo.Order" /

</set

</class

</hibernate-mapping

/*

* Created on 2005-10-13

*

* TODO To change the template for this generated file go to

* Window - Preferences - Java - Code Style - Code Templates

*/

package testdemo;

/**

* @author liuzj

*

* TODO To change the template for this generated type comment go to

* Window - Preferences - Java - Code Style - Code Templates

*/

import java.io.Serializable;

public class Order implements Serializable {

private Long id;

private String orderNumber;

private double price;

private Customer customer;

public Order() {

}

public Order(String orderNumber,double price,Customer customer) {

this.orderNumber=orderNumber;

this.price=price;

this.customer=customer;

}

public Long getId() {

return this.id;

}

public void setId(Long id) {

this.id = id;

}

public String getOrderNumber() {

return this.orderNumber;

}

public void setOrderNumber(String orderNumber) {

this.orderNumber = orderNumber;

}

public Customer getCustomer() {

return this.customer;

}

public void setCustomer(Customer customer) {

this.customer = customer;

}

public double getPrice(){

return this.price;

}

private void setPrice( double price ){

this.price = price;

}

}

<?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-mappingpackage="testdemo"

<class name="Order"table="ORDERS"

<id name="id"

<generator class="increment"/

</id

<property name="orderNumber" column="ORDER_NUMBER"/

<property name="price" /

<many-to-one

name="customer"

column="CUSTOMER_ID"

class="Customer"

not-null="true"

/

</class

</hibernate-mapping

上面的PO已经建立完成,下面是一个测试类

/*

* Created on 2005-10-12

*

* TODO To change the template for this generated file go to

* Window - Preferences - Java - Code Style - Code Templates

*/

package testdemo;

import java.util.HashSet;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.Transaction;

import org.hibernate.cfg.Configuration;

import testdemo.Customer;

/**

* @author liuzj

*

* TODO To change the template for this generated type comment go to Window -

* Preferences - Java - Code Style - Code Templates

*/

public class Test {

SessionFactory sessionFactory = new Configuration().configure().addClass(

testdemo.Customer.class).addClass(Order.class).buildSessionFactory();

Session session = sessionFactory.openSession();

public void saveCustomer(Customer customer) throws Exception {

Transaction tx = null;

try {

tx = session.beginTransaction();

session.save(customer);

tx.commit();

} catch (Exception e) {

if (tx != null) {

tx.rollback();

}

throw e;

} finally {

session.close();

}

}

public void testmethod()throws Exception

{

Customer customer=new Customer("lzhengj","001",new HashSet());

Order order1=new Order("Order",1000,customer);

Order order2=new Order("Order",2000,customer);

customer.getOrders().add(order1);

customer.getOrders().add(order2);

this.saveCustomer(customer);

}

public static void main(String[] args) {

try{

new Test().testmethod();

}catch(Exception e)

{

System.out.println("this is the testmethodthrow exception.....");

e.printStackTrace();

}

}

}

ok,下面是一个hibernate的配置hibernate.cfg.xml(位于应用目录下面)

<!DOCTYPE hibernate-configuration PUBLIC

"-//Hibernate/Hibernate Configuration DTD 3.0//EN"

"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"

<hibernate-configuration

<session-factory

<property name="hibernate.connection.url"

jdbc:inetdae:localhost:1433?charset=gbk&database=hibernate_test

</property

<property name="hibernate.connection.driver_class"

com.inet.tds.TdsDriver

</property

<property name="hibernate.connection.username"

sa

</property

<property name="hibernate.connection.password"

aa

</property

<property name="hibernate.dialect"

org.hibernate.dialect.SQLServerDialect

</property

<property name="show_sql"

true

&

 
 
 
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