本文将用Maven3、Hibernate3.6、Oracle10g整合，作为例子。
环境清单：
1.Maven3.0.5
2.Hibernate3.6.5 Final
3.JDK1.7.0.11
4.Oracle10g
一.首先创建表BDUSER
create table DBUSER ( user_id NUMBER(5) not null, username VARCHAR2(20), created_by VARCHAR2(20), created_date DATE )
二.用Maven3创建一个web项目，项目名称：maven-hibernate-demo
创建项目参考：Maven3路程（三）用Maven创建第一个web项目(1)
三.添加Hibernate和Oracle依赖，pom.xml如下
Hibernate有些依赖包必须添加
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.lei.demo</groupId>
<artifactId>maven-hibernate-demo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>maven-hibernate-demo Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<!-- Oracle Jdbc Driver -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc14</artifactId>
<version>10.2.0.4.0</version>
</dependency>
<!-- Hibernate 配置 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.6.5.Final</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.0.GA</version>
</dependency>
<dependency>
<groupId>antlr</groupId>
<artifactId>antlr</artifactId>
<version>2.7.6</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.0.Final</version>
</dependency>
</dependencies>
<build>
<finalName>maven-hibernate-demo</finalName>
</build>
</project>
四.创建Hibernate Map文件和Model类
1.创建Dbuser.hbm.xml映射文件
路径src/main/resources/com/sulei/demo下
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 2013-10-22 15:28:34 by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="com.sulei.demo.Dbuser" table="DBUSER" schema="GZIP_BASE">
<id name="userId" type="int">
<column name="USER_ID" precision="5" scale="0" />
<generator class="assigned" />
</id>
<property name="username" type="string">
<column name="USERNAME" length="20" />
</property>
<property name="createdBy" type="string">
<column name="CREATED_BY" length="20" />
</property>
<property name="createdDate" type="date">
<column name="CREATED_DATE" length="7" />
</property>
</class>
</hibernate-mapping>
2. 创建实体类Dbuser
路径src/main/java/com/sulei/demo下
package com.sulei.demo;
// Generated 2013-10-22 15:28:34 by Hibernate Tools 3.4.0.CR1
import java.util.Date;
/**
* Dbuser generated by hbm2java
*/
public class Dbuser implements java.io.Serializable {
private int userId;
private String username;
private String createdBy;
private Date createdDate;
public Dbuser() {
}
public Dbuser(int userId) {
this.userId = userId;
}
public Dbuser(int userId, String username, String createdBy,
Date createdDate) {
this.userId = userId;
this.username = username;
this.createdBy = createdBy;
this.createdDate = createdDate;
}
public int getUserId() {
return this.userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
public String getUsername() {
return this.username;
}
public void setUsername(String username) {
this.username = username;
}
public String getCreatedBy() {
return this.createdBy;
}
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
}
public Date getCreatedDate() {
return this.createdDate;
}
public void setCreatedDate(Date createdDate) {
this.createdDate = createdDate;
}
}
可以用Hibernate Tools反向工程自动声场代码，见以下另一篇文章：
用Hibernate Tools生成Hibernate Mapping映射文件
五.创建Hibernate.cfg.xml
创建Hibernate配置文件 “hibernate.cfg.xml” 把他放在resources目录下： “src/main/resources/hibernate.cfg.xml“填写数据库相关信息。
加入Map文件，“DBUser.hbm.xml“.
hibernate.cfg.xml如下：
<?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 name="">
<property name="hibernate.connection.driver_class">oracle.jdbc.OracleDriver</property>
<property name="hibernate.connection.password">password</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:@databaseip:1521:gzip</property>
<property name="hibernate.connection.username">gzip_base</property>
<property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>
<property name="show_sql">true</property>
<mapping resource="com/sulei/demo/Dbuser.hbm.xml" />
</session-factory>
</hibernate-configuration>
六.创建Session工场
创建 “HibernateUtil.java” 类管理Hibernate Session。 路径：“src/main/java/com/sulei/util/HibernateUtil.java”
package com.sulei.util;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
private static final SessionFactory sessionFactory = buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
// Create the SessionFactory from hibernate.cfg.xml
return new Configuration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() { System.out.println("test----1");
return sessionFactory;
}
public static void shutdown() {
// Close caches and connection pools
getSessionFactory().close();
}
}
六. 代码测试
创建App.java向表中插入一条记录。
package com.sulei.test;
import java.util.Date;
import org.hibernate.Session;
import com.sulei.util.HibernateUtil;
import com.sulei.demo.Dbuser;
public class App {
public static void main(String[] args) {
System.out.println("Maven3 + Hibernate + Oracle10g");
Session session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
Dbuser user = new Dbuser();
user.setUserId(100);
user.setUsername("leioolei");
user.setCreatedBy("system");
user.setCreatedDate(new Date());
session.save(user);
session.getTransaction().commit();
}
}
项目组织好，目录结构见下图
在App.java上右键运行，结果如图
测试成功！！！
时间： 2024-08-10 03:20:09