eclipse之SSH配置hibernate【三】

配置hibernate，没有和spring整合，可以看成独立的部分。

在src下创建hibernate配置文件，hibernate.cfg.xml。主要是sql连接相关配置。

<?xml version='1.0' encoding='utf-8'?>
<!--
  ~ Hibernate, Relational Persistence for Idiomatic Java
  ~
  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
  -->
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
 
<hibernate-configuration>
 
    <session-factory>
 
        <!-- Database connection settings -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver </property>
        <property name="connection.url">jdbc:mysql://localhost:3306/cmsadmin</property>
        <property name="connection.username">root</property>
        <property name="connection.password">123456</property>
 
        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect </property>
 
        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>
 
		<mapping resource="com/awu/models/user.hbm.xml"/>
    </session-factory>
 
</hibernate-configuration>

Tip:<mapping resource="com/awu/models/user.hbm.xml"/> 是entity的映射文件。一般创建在src的目录下即可。内容如：

<?xml version="1.0" encoding="UTF-8"?>
<hibernate-mapping package="com.awu.models">
<class name="User" table="user">
	<id name="userid" type="string">
	</id>
	<property name="username" type="string"></property>
	<property name="pwd" type="string"></property>
	<property name="creator" type="string"></property>
	<property name="createtime" type="date"></property>
	<property name="updater" type="string"></property>
	<property name="updatetime" type="date"></property>
	<property name="isenabled" type="int"></property>
</class>
</hibernate-mapping>

使用hibernate示例代码：

Configuration configuration = new Configuration().configure();
		SessionFactory factory = configuration.buildSessionFactory();
		Session session = null;
		try{
			session = factory.openSession();
			session.beginTransaction();
//			ArrayList<User> result = (ArrayList<User>) session.createQuery("from User").list();
			session.createQuery("from User").uniqueResult();
			System.out.println(session.get(User.class,"402895da5a6def38015a6def39d80000").getUsername());
 
			session.getTransaction().commit();
		}catch (Exception e) {
			System.out.println(e.getMessage());
			session.getTransaction().rollback();
		}finally {
			if(session != null){
				if(session.isOpen())
					session.close();
			}
		}

hibernate相关的jar。

• antlr-2.7.7.jar
• classmate-1.3.0.jar
• dom4j-1.6.1.jar
• hibernate-commons-annotations-5.0.1.Final.jar
• hibernate-core-5.2.8.Final.jar
• hibernate-jpa-2.1-api-1.0.0.Final.jar
• jandex-2.0.3.Final.jar
• javassist-3.20.0-GA.jar
• jboss-logging-3.3.0.Final.jar
• jboss-transaction-api_1.2_spec-1.0.1.Final.jar

mysql连接库：

• mysql-connector-java-5.1.40-bin.jar