(ssh)一个简单的hibernate与spring集成

下面介绍一下hibernate与spring的集成,这两个框架的集成关键在于applicationContext.xml文件的配置，其实很简单的，但需要注意的是，导入包时一定选择导入到webroot/web-inf/lib目录中，而且hibernate一般要在spring之前导入，因为集成时要用到sessionFactory类,
一、初始化工作:新建一个项目,如(ssh),在此项目中导入对hibernate的支持,新建一个表sstest表，有字段id,username,password,id为主健和自动增1
二、对新建的数据表进行hibernate进行映射,打开myhibernate视图，右击你sstest表->选hibernate revers engineering选项，然后把Sstest.hbm.xml文件映射到hibernateDao包中，同时选中工具 hibernate mapping file..., java data object....., java data access object dao...选项，先中这几个文件就可以产生下列几个.java文件:BaseHibernateDAO. ,HibernateSessionFactory ,IBaseHibernateDAO, Sstest,SstestDAO,最后你对你的代码进行测试，测试成功，进行下一步
三、在项目中导入对spring的支持，在导入项目后不但要自动产生applicationContext.xml,而且在这个文件里会出现下面的内容：
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation" value="classpath:hibernate.cfg.xml">
</property>
</bean>
这就是为什么要先要导入hibernate的原因
四、若你对spring的ioc比较熟，你可以直接进入下一步，如果不是很了解，那么你可以写一个比较简单的例子测试一下看是否成功，必竟框架和在一起，所以小心点好，不然在以后出了有问题不好找
五、进入myeclipse hibernate视图下，在新的包（如springDao）中重新对sstest表进行映射，这次映射要注意的就是：打开hibernate reverse engineering对话框中复选按钮java data access object(dao)(hibernate 3 only)下，dao type 不是选basic dao选项，而是选spring dao选项，当你映射成功后，就会出现Sstest.java, SstestDAO.java, Sstest.hbm.xml几个文件，你可以写一个类进行测试，如：
springdaotest.java

package org.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import springDao.Sstest;
import springDao.SstestDAO;

public class SpringDaoTest {
public static void main(String a[]){
  ApplicationContext cont = new ClassPathXmlApplicationContext("applicationContext.xml");
  SstestDAO s = (SstestDAO) cont.getBean("SstestDAO");
   SstestDAO s = (SstestDAO) cont.getBean("SstestDAOProxy");
  Sstest st = new Sstest();
  st.setUsername("spring");
  st.setPassword("spring");
  s.save(st);
}
}
六、由于映射了两次，所以你要在hibernate.cfg.xml文件中，把原来映射的文件注解掉：
<mapping resource="hibernateDao/Sstest.hbm.xml" />
因为现在已有一行这样的代码：
<mapping resource="springDao/Sstest.hbm.xml" />
七、实现hibernate spring 代理，加上下面的代码即可：
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
  <property name="sessionFactory">
   <ref local="sessionFactory"/>
  </property>
</bean>
<bean id="SstestDAOProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
  <property name="proxyTargetClass">
   <value>true</value>
  </property>
  <property name="transactionManager">
   <ref bean="transactionManager"/>
  </property>
  <property name="target">
   <ref local="SstestDAO"/>
  </property>
  <property name="transactionAttributes">
   <props>
    <prop key="*">PROPAGATION_REQUIRED</prop>
   </props>
  </property>
</bean>
在进行测试，测试时，还是用原来的类，只需把SstestDAO s = (SstestDAO) cont.getBean("SstestDAO");变成
SstestDAO s = (SstestDAO) cont.getBean("SstestDAOProxy");这次的bean是用的代码类实现
下面是完整的代码：
在这个实例中hibernate包中的文件BaseHibernateDAO. ,HibernateSessionFactory ,IBaseHibernateDAO, Sstest,SstestDAO, Sstest.hbm.xml ，和在一个简单的struts，hibernate例子以及struts,hibernate集成中的文件是一样的，代码一样，下面是一些其它代码：
applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
  <property name="configLocation" value="classpath:hibernate.cfg.xml">
  </property>
</bean>

<bean id="SstestDAO" class="springDao.SstestDAO">
  <property name="sessionFactory">
   <ref bean="sessionFactory"/>
  </property>
</bean>

<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
  <property name="sessionFactory">
   <ref local="sessionFactory"/>
  </property>
</bean>
<bean id="SstestDAOProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
  <property name="proxyTargetClass">
   <value>true</value>
  </property>
  <property name="transactionManager">
   <ref bean="transactionManager"/>
  </property>
  <property name="target">
   <ref local="SstestDAO"/>
  </property>
  <property name="transactionAttributes">
   <props>
    <prop key="*">PROPAGATION_REQUIRED</prop>
   </props>
  </property>
</bean>
</beans>
测试类：SpringDaoTest.java

package org.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import springDao.Sstest;
import springDao.SstestDAO;

public class SpringDaoTest {
public static void main(String a[]){
  ApplicationContext cont = new ClassPathXmlApplicationContext("applicationContext.xml");
  //SstestDAO s = (SstestDAO) cont.getBean("SstestDAO");
  //代理类
  SstestDAO s = (SstestDAO) cont.getBean("SstestDAOProxy");
  Sstest st = new Sstest();
  st.setUsername("spring");
  st.setPassword("spring");
  s.save(st);
}
}
Sstest.hbm.xml
<?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>
    <class name="springDao.Sstest" table="sstest" schema="dbo" catalog="manager">
        <id name="id" type="java.lang.Integer">
            <column name="id" />
            <generator class="increment" />
        </id>
        <property name="username" type="java.lang.String">
            <column name="username" length="10" />
        </property>
        <property name="password" type="java.lang.String">
            <column name="password" length="20" />
        </property>
    </class>
</hibernate-mapping>
SstestDAO.java

package springDao;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

public class SstestDAO extends HibernateDaoSupport {
private static final Log log = LogFactory.getLog(SstestDAO.class);
// property constants
public static final String USERNAME = "username";
public static final String PASSWORD = "password";

protected void initDao() {
// do nothing
}

public void save(Sstest transientInstance) {
  log.debug("saving Sstest instance");
  System.out.println("Ok");
  try {
   getHibernateTemplate().save(transientInstance);
   log.debug("save successful");
   System.out.print("save Ok");
  } catch (RuntimeException re) {
   log.error("save failed", re);
   throw re;
  }
}

public void delete(Sstest persistentInstance) {
  log.debug("deleting Sstest instance");
  try {
   getHibernateTemplate().delete(persistentInstance);
   log.debug("delete successful");
  } catch (RuntimeException re) {
   log.error("delete failed", re);
   throw re;
  }
}

public Sstest findById(java.lang.Integer id) {
  log.debug("getting Sstest instance with id: " + id);
  try {
   Sstest instance = (Sstest) getHibernateTemplate().get(
     "springDao.Sstest", id);
   return instance;
  } catch (RuntimeException re) {
   log.error("get failed", re);
   throw re;
  }
}

public List findByExample(Sstest instance) {
  log.debug("finding Sstest instance by example");
  try {
   List results = getHibernateTemplate().findByExample(instance);
   log.debug("find by example successful, result size: "
     + results.size());
   return results;
  } catch (RuntimeException re) {
   log.error("find by example failed", re);
   throw re;
  }
}

public List findByProperty(String propertyName, Object value) {
  log.debug("finding Sstest instance with property: " + propertyName
    + ", value: " + value);
  try {
   String queryString = "from Sstest as model where model."
     + propertyName + "= ?";
   return getHibernateTemplate().find(queryString, value);
  } catch (RuntimeException re) {
   log.error("find by property name failed", re);
   throw re;
  }
}

public List findByUsername(Object username) {
return findByProperty(USERNAME, username);
}

public List findByPassword(Object password) {
return findByProperty(PASSWORD, password);
}

public List findAll() {
  log.debug("finding all Sstest instances");
  try {
   String queryString = "from Sstest";
   return getHibernateTemplate().find(queryString);
  } catch (RuntimeException re) {
   log.error("find all failed", re);
   throw re;
  }
}

public Sstest merge(Sstest detachedInstance) {
  log.debug("merging Sstest instance");
  try {
   Sstest result = (Sstest) getHibernateTemplate().merge(
     detachedInstance);
   log.debug("merge successful");
   return result;
  } catch (RuntimeException re) {
   log.error("merge failed", re);
   throw re;
  }
}

public void attachDirty(Sstest instance) {
  log.debug("attaching dirty Sstest instance");
  try {
   getHibernateTemplate().saveOrUpdate(instance);
   log.debug("attach successful");
  } catch (RuntimeException re) {
   log.error("attach failed", re);
   throw re;
  }
}

public void attachClean(Sstest instance) {
  log.debug("attaching clean Sstest instance");
  try {
   getHibernateTemplate().lock(instance, LockMode.NONE);
   log.debug("attach successful");
  } catch (RuntimeException re) {
   log.error("attach failed", re);
   throw re;
  }
}

public static SstestDAO getFromApplicationContext(ApplicationContext ctx) {
return (SstestDAO) ctx.getBean("SstestDAO");
}
}

Sstest.java

package springDao;

public class Sstest implements java.io.Serializable {

// Fields

private Integer id;
private String username;
private String password;

// Constructors

/** default constructor */
public Sstest() {
}

/** full constructor */
public Sstest(String username, String password) {
this.username = username;
this.password = password;
}

// Property accessors

public Integer getId() {
return this.id;
}

public void setId(Integer id) {
this.id = id;
}

public String getUsername() {
return this.username;
}

public void setUsername(String username) {
this.username = username;
}

public String getPassword() {
return this.password;
}

public void setPassword(String password) {
this.password = password;
}

}

hibernate.cfg.xml

<?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>
  <property name="connection.username">sa</property>
  <property name="connection.url">
   jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=manager
  </property>
  <property name="dialect">
   org.hibernate.dialect.SQLServerDialect
  </property>
  <property name="myeclipse.connection.profile">
   com.microsoft.jdbc.sqlserver.SQLServerDriver
  </property>
  <property name="connection.password">wq</property>
  <property name="connection.driver_class">
   com.microsoft.jdbc.sqlserver.SQLServerDriver
  </property>
  
  
  <mapping resource="springDao/Sstest.hbm.xml" />

</session-factory>

</hibernate-configuration>

发表于 2008-10-21 14:41 qin 阅读(2321) 评论(5) 编辑收藏所属分类: J2EE***学习历程

# re: (ssh)一个简单的hibernate与spring集成

怎么SSH成了struts spring hibernate，ssh是安全里面的一个标准名词，java社区里面也很少有这么称呼的:)

Always BaNg. 评论于 2008-10-21 15:34 回复更多评论

ssh应该做java的人都认为struts +spring+hibernate,当然做UNIX的人不这么认为～嘿嘿！

loocky 评论于 2008-10-21 17:57 回复更多评论

@Always BaNg.
是啊，我也一直很难接受 SSH 是这么一个东西，因为我原来做过的 SSH，是安全的 Shell，完全不那么回事，反正乱缩写了

隔叶黄莺评论于 2008-10-21 18:24 回复更多评论

@loocky
凡正在java里，很多人都那么称的，其实怎么称都无所谓，只要都懂就行了

qin 评论于 2008-10-21 18:42 回复更多评论

又是 MyEclipse 集成SSH，最搞不懂的是有多少程序员在用 MyEclipse 开发的时候是使用的正版软件？

Lf0x 评论于 2008-10-21 20:55 回复更多评论

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