hibernate 小案例

2014-11-24 08:04:56 · 作者: · 浏览: 1
Hibernate 的使用小案例

1 建一个实体类 Test.java

//不要带构造方法,或者hibernate没办法为您生成表

import java.util.Date;


public class Test {
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
private String name;
private Date birthday;
}


2 建实体映射文件Test.hbm.xml

"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">















3 配置hibernate.cfg.xml
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">




com. mysql.jdbc.Driver
jdbc:mysql:///test
root
123
create
org.hibernate.dialect.MySQLDialect





4 编写测试该配置代码 Base.java
import java.util.Date;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;


public class Base {
public static void main(String[] args){
Configuration cfg = new Configuration();
cfg.configure();
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
Test test = new Test();
test.setBirthday(new Date());
test.setName("name");
s.save(test);
tx.commit();
s.close();
System.out.print("end");
}
}