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flask框架实例 开发框架 hibernate3.0 开发实例
开发框架 hi er ate3.0 开发实例 建议是有一点点是一点点基础的人又没有hi er ate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 注意我用的JDBC
开发框架 hibernate3.0 开发实例

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 ) 注意我用的JDBC驱动 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 * * 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 ment 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= ?> <!DOCTYPE hibernate mapping PUBLIC //Hibernate/Hibernate Mapping DTD //EN mapping 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 * * 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 ment 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= ?> <!DOCTYPE hibernate mapping PUBLIC //Hibernate/Hibernate Mapping DTD //EN mapping dtd > <hibernate mapping package= 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 * * 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 hibernate Session; import hibernate SessionFactory; import hibernate Transaction; import hibernate cfg Configuration; import testdemo Customer; /** * @author liuzj * * TODO To change the template for this generated type ment go to Window * Preferences Java Code Style Code Templates */ public class Test { SessionFactory sessionFactory = new Configuration(nfigure() 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); mit(); } catch (Exception e) { if (tx != null) { tx rollback(); } throw e; } finally { session close(); } } public void testmethod()throws Exception { Customer customer=new Customer( lzhengj new HashSet()); Order order =new Order( Order customer); Order order =new Order( Order customer); customer getOrders() add(order ); customer getOrders() add(order ); this saveCustomer(customer); } public static void main(String[] args) { try{ new Test() testmethod(); }catch(Exception e) { System out println( this is the testmethod throw 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 //EN configuration dtd > <hibernate configuration> <session factory> <property name= nnection url > jdbc:inetdae:localhost: ?charset=gbk&database=hibernate_test </property> <property name= nnection driver_class > inet tds TdsDriver </property> <property name= nnection username > sa </property> <property name= nnection password > aa </property> <property name= hibernate dialect > hibernate dialect SQLServerDialect </property> <property name= show_sql > true & lishixinzhi/Article/program/Java/ky/201311/28232
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