Hibernate3.3.2 手动配置annotation环境

浏览数：64 / 时间：2015年06月20日

简单记录Hibernate3.3.2如何快速配置环境

一、下载hibernate-distribution-3.3.2.GA-dist.zip文件，建立User libraries.

打开windows->preferences->JAVA->Build Path->User libraries。新建一个名为Hibernate的文件夹。然后添加hibernate-distribution-3.3.2.GA-dist.zip下的jar文件

第一个包在解压缩之后的文件夹下，剩下的JAR包除了倒数三个（用来配置DDL语句输出）和annotation包以外在lib->required文件夹下。

二、配置hibernate.cfg.xml配置文件(数据库为SqlServer2008 EXPRESS)

<?xml version=‘1.0‘ 
encoding=‘utf-8‘?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 
<hibernate-configuration>
 
    <session-factory>
 
        <!-- Database connection settings -->
        <property name="connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>
        <property name="connection.url">jdbc:sqlserver://localhost:1433; DatabaseName=hibernate</property>
        <property name="connection.username">aa</property>
        <property name="connection.password">aa</property>
 
        <!-- JDBC connection pool (use the built-in) -->
        <!-- <property name="connection.pool_size">1</property> -->
 
        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
 
        <!-- Enable Hibernate‘s automatic session context management -->
        <!-- <property name="current_session_context_class">thread</property> -->
 
        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
 
        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>
 
        <!-- Drop and re-create the database schema on 
startup -->
          <property name="hbm2ddl.auto">create</property>  
     
    </session-factory>
 
</hibernate-configuration>

　三）使用JAVABEAN的hbm.xml配置：

1、建立Student类

package com.huohuo.model;
 
public 
class Student {
    public 
int id;
    public 
String name;
    public 
int age;
    public 
String grade;
     
    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 
int getAge() {
        return 
age;
    }
    public 
void setAge(int 
age) {
        this.age = age;
    }
    public 
String getGrade() {
        return 
grade;
    }
    public 
void setGrade(String grade) {
        this.grade = grade;
    }
     
     
}

　　 2、配置Student.hbm.xml（注意该文件和Student类放在同一个文件夹下）

<?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">
         
<hibernate-mapping package="com.huohuo.model">
 
    <class 
name="Student" 
table="student">
        <id name="id" 
>
        </id>
        <property name="age"/>
        <property name="name"/>
        <property name="grade"/>
         
    </class>
 
</hibernate-mapping>

　　 3、在hibernate.cfg.xml加入这样一句话

1 2	`<!-- 使用Student.hbm.xml -->` `<mapping resource="com/huohuo/model/Student.hbm.xml"/>`

配置完这三步以后，写一个测试类StudentTest.class

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
 
import com.huohuo.model.Student;
 
 
public 
class StudentTest {
 
    /**
     * @param args
     */
    public 
static void main(String[] args) {
        // TODO Auto-generated method stub
         
        Student s1 = new 
Student();
        s1.setId(10);
        s1.setName("huohuo2");
        s1.setAge(23);
        s1.setGrade("二年级");
     
         
         
        Configuration cfg = new 
Configuration();
        SessionFactory sf = cfg.configure().buildSessionFactory();
        Session session = sf.openSession();
        session.beginTransaction();
        session.save(s1);
         
        session.getTransaction().commit();
        session.close();
        sf.close();
    }   
 
}

　　之后执行测试类，就会成功。以上几步是hibernate中自己写的类手动配置的步骤。

四）使用hibernate annotation配置方法（这个比3简单）

加入两个包：

写一个Teacher类

package com.huohuo.model;
 
 
import javax.persistence.Entity;
import javax.persistence.Id;
 
 
 
@Entity
public 
class Teacher {
    public 
int id;
    public 
String name;
    public 
String title;
     
    @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 
String getTitle() {
        return 
title;
    }
    public 
void setTitle(String title) {
        this.title = title;
    }
     
     
}

　　@是annotation的语法，@id表示主码

写一个测试类TeacherTest.class

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.cfg.Configuration;
 
import com.huohuo.model.Teacher;
 
     
public 
class TeacherTest {
 
    /**
     * @param args
     */
    public 
static void main(String[] args) {
        // TODO Auto-generated method stub
         
         Teacher t = new 
Teacher();
         t.setId(3);
         t.setName("huohuo");
         t.setTitle("低级教师");
         
         
        Configuration cfg = new 
AnnotationConfiguration();
        SessionFactory sf = cfg.configure().buildSessionFactory();
        Session session = sf.openSession();
        session.beginTransaction();
        session.save(t);
        session.getTransaction().commit();
        session.close();
        sf.close();
    }
 
}