Struts2+spring2+hibernate3整合方案

Struts2+spring2+hibernate3整合方案
最近闲来无事可做，于是开始学习struts2。Struts2和struts1、webwork2有什么区别我也不说了，网上有很多这方面的资料。以前在项目中从未使用过struts，一直使用spring+hibernate，现在既然学习了Struts，也不能浪费，于是乎开始琢磨着怎么整合这3个框架。整合原理以spring为容器，管理hibernate的DAO和Struts2的Action。
一、 准备工作
Struts2.06+spring2.5+hibernate3.2+jdk6.0+myeclipse6.0+tomcat5.5+mysql5.0
以上是整合的原料。下面以一个注册登陆的例子来开始我们的整合过程。
这个例子很简单，下面是它的sql脚本内容:
CREATE TABLE `user` (
  `userid` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(20) NOT NULL,
  `password` varchar(16) NOT NULL,
  `email` varchar(30) NOT NULL,
  PRIMARY KEY (`userid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf-8;
二、 开始行动
包结构可以参考下图

图一

图二

图三
1) Struts部分:建立struts.xml和struts.properties
Struts.xml内容如下：




<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd" >
<struts>
    <package name="user_curd" extends="struts-default" >
        <global-results>
            <!-- 下面定义的结果对所有的Action都有效 -->
            <result name="exception">/error.jsp</result>
        </global-results>

        <global-exception-mappings>
            <!-- 指Action抛出Exception异常时，转入名为exception的结果。 -->
            <exception-mapping exception="java.lang.Exception" result="exception"/>
        </global-exception-mappings>

        <action name="Login" class="LoginAction">
            <result name="success">/success.jsp</result>   
            <result name="input">/login.jsp</result>
        </action>
        <action name="Regist" class="RegistAction">
            <result name="success">/success.jsp</result>   
            <result name="input">/regist.jsp</result>
        </action>
    </package>
           
</struts>


Struts.properties内容如下:




struts.devMode=false
struts.enable.DynamicMethodInvocation=true
struts.i18n.reload=true
struts.ui.theme=xhtml

struts.locale=zh_CN
struts.i18n.encoding=UTF-8
struts.objectFactory=spring
struts.objectFactory.spring.autoWire=name

struts.serve.static.browserCache=false
struts.url.includeParams=none

2) 建立User.java和User.hbm.xml、jdbc.properties：
User.java内容如下:




/** *//**
*
* @author <a href="mailto:[email protected]">flustar</a>
* @version 1.0
* Creation date: Dec 23, 2007 1:55:28 PM
*/
package com.firstssh.model;

import java.io.Serializable;

public class User implements Serializable {
    private int id;
    private String username;
    private String password;
    private String email;

    public int getId() {
        return id;
    }

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

    public String getUsername() {
        return username;
    }

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

    public String getPassword() {
        return password;
    }

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

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }
}


User.hbm.xml内容:




<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping
    package="com.firstssh.model">

    <class name="User" table="User">
        <id name="id" column="userid">
            <generator class="identity" />
        </id>   
        <property name="username"
                  column="username"
                  not-null="true"
                  length="20"
        />
        <property name="password"
                  column="password"
                  not-null="true"
                  length="16" />
        <property name="email"
                  column="email"
                  not-null="true"
                  length="30"/>
    </class>
   
</hibernate-mapping>

jdbc.properties内容如下:




datasource.type=mysql
datasource.driverClassName=com.mysql.jdbc.Driver
datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8

datasource.username=root
datasource.password=123456

datasource.maxActive=10
datasource.maxIdle=2
datasource.maxWait=120000
datasource.whenExhaustedAction=1
datasource.validationQuery=select 1 from dual
datasource.testOnBorrow=true
datasource.testOnReturn=false

c3p0.acquireIncrement=3
c3p0.initialPoolSize=3
c3p0.idleConnectionTestPeriod=900
c3p0.minPoolSize=2
c3p0.maxPoolSize=50
c3p0.maxStatements=100
c3p0.numHelperThreads=10
c3p0.maxIdleTime=600

hibernate.dialect=org.hibernate.dialect.MySQLInnoDBDialect
#hibernate.dialect=org.hibernate.dialect.MySQLMyISAMDialect

hibernate.jdbc.batch_size=25
hibernate.jdbc.fetch_size=50
hibernate.show_sql=true
hibernate.connection.release_mode=after_transaction

3) Spirng部分:为了清晰把Spring的配置文件拆分成以下几部分applicationContext-dao.xml、appliationContext-service.xml、applicationContext-hibernate.xml、action-servlet.xml。
applicationContext-hibernate.xml内容：




<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<bean id="propertyConfigurer"
    class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <!--  <value>WEB-INF/mail.properties</value>-->
            <value>WEB-INF/jdbc.properties</value>
            <!--  <value>WEB-INF/oscache.properties</value>-->
        </list>
    </property>
</bean>
<!-- MailSender used by EmailAdvice -->
<!--
    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
    <property name="host" value="${mail.host}"/>
    </bean>
-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
    destroy-method="close" dependency-check="none">
    <property name="driverClass">
        <value>${datasource.driverClassName}</value>
    </property>
    <property name="jdbcUrl">
        <value>${datasource.url}</value>
    </property>
    <property name="user">
        <value>${datasource.username}</value>
    </property>
    <property name="password">
        <value>${datasource.password}</value>
    </property>
    <property name="acquireIncrement">
        <value>${c3p0.acquireIncrement}</value>
    </property>
    <property name="initialPoolSize">
        <value>${c3p0.initialPoolSize}</value>
    </property>
    <property name="minPoolSize">
        <value>${c3p0.minPoolSize}</value>
    </property>
    <property name="maxPoolSize">
        <value>${c3p0.maxPoolSize}</value>
    </property>
    <property name="maxIdleTime">
        <value>${c3p0.maxIdleTime}</value>
    </property>
    <property name="idleConnectionTestPeriod">
        <value>${c3p0.idleConnectionTestPeriod}</value>
    </property>
    <property name="maxStatements">
        <value>${c3p0.maxStatements}</value>
    </property>
    <property name="numHelperThreads">
        <value>${c3p0.numHelperThreads}</value>
    </property>
</bean>
<bean id="sessionFactory"
    class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource">
        <ref local="dataSource" />
    </property>
    <property name="mappingResources">
        <list>
            <value>com/firstssh/model/User.hbm.xml</value>
        </list>
    </property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">${hibernate.dialect}</prop>
            <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
            <prop key="hibernate.jdbc.fetch_size">
                ${hibernate.jdbc.fetch_size}
            </prop>
            <prop key="hibernate.jdbc.batch_size">
                ${hibernate.jdbc.batch_size}
            </prop>
        </props>
    </property>
</bean>
<!-- 配置事务管理器bean,使用HibernateTransactionManager事务管理器 -->
<bean id="transactionManager"
    class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <!-- 为事务管理器注入sessionFactory" -->
        <property name="sessionFactory" ref="sessionFactory"/>
</bean>
<!-- 配置事务拦截器Bean -->
<bean id="transactionInterceptor"
    class="org.springframework.transaction.interceptor.TransactionInterceptor">
    <!-- 为事务拦截器bean注入一个事物管理器 -->
    <property name="transactionManager" ref="transactionManager"></property>
    <property name="transactionAttributes">
    <!-- 定义事务传播属性 -->
        <props>
                <prop key="insert*">PROPAGATION_REQUIRED</prop>
                <prop key="update*">PROPAGATION_REQUIRED</prop>
                <prop key="save*">PROPAGATION_REQUIRED</prop>
                <prop key="add*">PROPAGATION_REQUIRED</prop>
                <prop key="remove*">PROPAGATION_REQUIRED</prop>
                <prop key="delete*">PROPAGATION_REQUIRED</prop>
                <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
                <prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>
                <prop key="load*">PROPAGATION_REQUIRED,readOnly</prop>
                <prop key="change*">PROPAGATION_REQUIRED</prop>
                <prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
        </props>
    </property>
</bean>
<!-- 定义BeanNameAutoProxyCreator -->
<bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
    <!-- 指定满足哪些bean自动生成业务代理 -->
    <property name="beanNames">
    <!-- 需要自动创建事务代理的bean -->
        <list>
            <value>userService</value>
        </list>
        <!-- 其它需要自动创建事务代理的bean -->
    </property>
    <property name="interceptorNames">
        <list>
            <value>transactionInterceptor</value>
            <!-- 可增加其它的interceptor -->
        </list>
    </property>
</bean>
</beans>


applicationContext-dao.xml内容:




<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<!-- 根DAO -->
<bean id="genericDao" class="com.firstssh.common.dao.GenericDao">
    <property name="sessionFactory">
        <ref bean="sessionFactory" />
    </property>
</bean>
<bean id="userDao" class="com.firstssh.dao.impl.UserDao" parent="genericDao" />
</beans>


applicationContext-service.xml内容:




<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<bean id="userService" class="com.firstssh.service.impl.UserService">
    <property name="userDao">
        <ref bean="userDao"/>
    </property>
</bean>
<bean id="validateName" class="com.firstssh.common.Bean.ValidateName">
    <property name="userService">
        <ref local="userService"/>
    </property>
</bean>
</beans>


action-servlet.xml内容:




<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>

    <bean id="LoginAction" class="com.firstssh.action.LoginAction"
        scope="prototype">
        <property name="userService" ref="userService" />
    </bean>
    <bean id="RegistAction" class="com.firstssh.action.RegistAction"
        scope="prototype">
        <property name="userService" ref="userService" />
    </bean>
</beans>


以上几个xml文件的内容暂且不要理会，继续往下看，你就自动明白的，不用我解释。
4）日志部分:log4j.properties 、commons-logging.properties
log4j.properties内容:




# For JBoss: Avoid to setup Log4J outside $JBOSS_HOME/server/default/deploy/log4j.xml!
# For all other servers: Comment out the Log4J listener in web.xml to activate Log4J.
log4j.rootLogger=INFO, stdout, logfile

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=${firstssh.root}/WEB-INF/logs/firstssh.log
log4j.appender.logfile.MaxFileSize=512KB
# Keep three backup files.
log4j.appender.logfile.MaxBackupIndex=3
# Pattern to output: date priority [category] - message
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n
# OpenSymphony Stuff
log4j.logger.com.opensymphony=INFO
log4j.logger.org.apache.struts2=INFO
# Spring Stuff
log4j.logger.org.springframework=INFO
# Hibernate Stuff
log4j.logger.org.hiberante=INFO
commons-logging.properties
内容:


org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger

5)web.xml




<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<display-name>firstssh</display-name>
<description>this is a simple example</description>
<context-param>
  <param-name>webAppRootKey</param-name>
  <param-value>firstssh.root</param-value>
</context-param>

<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>/WEB-INF/applicationContext-*.xml,/WEB-INF/action-servlet.xml</param-value>
</context-param>
<context-param>
  <param-name>log4jConfigLocation</param-name>
  <param-value>/WEB-INF/log4j.properties</param-value>
</context-param>
<listener>
  <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<!-- 用于初始化Spring容器的Listener -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>


<!-- 定义整合SiteMesh必须的ActionContextCleanUp Filter
<filter>
  <filter-name>struts-cleanup</filter-name>
  <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
</filter>-->
<!-- 定义Struts2的FilterDispathcer的Filter -->
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>

   <!--   <filter-mapping>
        <filter-name>struts-cleanup</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>-->
<!-- FilterDispatcher用来初始化struts2并且处理所有的WEB请求。 -->
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
   
   <!-- 这是一个产生验证码的servlet -->
    <servlet>
        <servlet-name>img</servlet-name>
        <servlet-class>com.firstssh.servlet.AuthImg</servlet-class>
    </servlet>
 
    <servlet-mapping>
        <servlet-name>img</servlet-name>
     <url-pattern>/authImg</url-pattern>
    </servlet-mapping>
    <filter>  
        <filter-name>encodingFilter</filter-name>  
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
        <init-param>  
            <param-name>encoding</param-name>  
            <param-value>utf-8</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>encodingFilter</filter-name>  
        <url-pattern>*.action</url-pattern>  
    </filter-mapping>  
    <filter-mapping>  
        <filter-name>encodingFilter</filter-name>  
        <url-pattern>*.jsp</url-pattern>  
    </filter-mapping>
    <filter>  
        <filter-name>hibernateFilter</filter-name>  
        <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>  
    </filter>
    <filter-mapping>  
        <filter-name>hibernateFilter</filter-name>  
        <url-pattern>*.action</url-pattern>  
    </filter-mapping>
   
    <!-- DWR Servlet-->
  <servlet>
    <servlet-name>dwr-invoker</servlet-name>
    <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
    <init-param>
      <param-name>debug</param-name>
      <param-value>true</param-value>
    </init-param>
  </servlet>

  <servlet-mapping>
    <servlet-name>dwr-invoker</servlet-name>
    <url-pattern>/dwr/*</url-pattern>
  </servlet-mapping>
 
    <session-config>  
        <session-timeout>10</session-timeout>  
    </session-config>
   
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <error-page>
    <error-code>401</error-code>
    <location>/401.htm</location>
  </error-page>
  <error-page>
    <error-code>403</error-code>
    <location>/403.htm</location>
  </error-page>
  <error-page>
    <error-code>404</error-code>
    <location>/404.htm</location>
  </error-page>
  <error-page>
    <error-code>500</error-code>
    <location>/500.htm</location>
  </error-page>
</web-app>




6)dwr.xml


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd">

<dwr>
    <!-- 检查用户名是否存在 ValidateName的映射文件-->
    <allow>
      <create  creator="spring" javascript="ValidateName" >
          <param name="beanName" value="validateName"/>
          <include method="valid"/>
      </create>
     </allow>
</dwr>




三、 开始编码:
以下是DAO部分的核心代码:
IGenericDao.java内容如下:






/** *//**
*
* @author <a href="mailto:[email protected]">flustar</a>
* @version 1.0
* Creation date: Dec 23, 2007 6:19:21 PM
*/
package com.firstssh.common.dao;

import java.io.Serializable;
import java.util.Collection;
import java.util.List;

import org.hibernate.LockMode;
import org.hibernate.criterion.DetachedCriteria;
import org.springframework.dao.DataAccessException;
import com.firstssh.common.util.PaginationSupport;

public interface IGenericDao<T, ID extends Serializable> {
    public T load(ID id) throws DataAccessException;

    public T get(ID id)throws DataAccessException;

    public boolean contains(T t) throws DataAccessException;

    public void refresh(T t, LockMode lockMode) throws DataAccessException;

    public void refresh(T t) throws DataAccessException;

    public Serializable save(T t) throws DataAccessException;

    public void saveOrUpdate(T t) throws DataAccessException;

    public void saveOrUpdateAll(Collection<T> entities)
            throws DataAccessException;

    public void update(T t, LockMode lockMode) throws DataAccessException;

    public void update(T t) throws DataAccessException;

    public void delete(T t, LockMode lockMode) throws DataAccessException;

    public void delete(T t) throws DataAccessException;

    public void deleteAll(Collection<T> entities) throws DataAccessException;

    public List<T> find(String queryString, Object value)
            throws DataAccessException;

    public List<T> find(String queryString, Object[] values)
            throws DataAccessException;

    public List<T> find(String queryString) throws DataAccessException;

    public List<T> list()throws DataAccessException;
   
    public List<T> findByNamedQuery(String queryName)throws DataAccessException ;
   
        public List<T> findByNamedQuery(String queryName, Object value)throws DataAccessException ;
   
        public List<T> findByNamedQuery(String queryName, Object[] values)throws DataAccessException ;
   

    public PaginationSupport findPageByCriteria(
            final DetachedCriteria detachedCriteria, final int pageSize,
            final int startIndex);

    public PaginationSupport findPageByQuery(final String hsql,
            final int pageSize, final int startIndex);

}

GenericDao.java内容如下:




/** *//**
*
* @author <a href="mailto:[email protected]">flustar</a>
* @version 1.0
* Creation date: Dec 23, 2007 11:23:56 PM
*/
package com.firstssh.common.dao;

import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.sql.SQLException;
import java.util.Collection;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.springframework.dao.DataAccessException;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import com.firstssh.common.util.PaginationSupport;

@SuppressWarnings("unchecked")
public class GenericDao<T, ID extends Serializable> extends HibernateDaoSupport
        implements IGenericDao<T, ID> {
    private Log logger = LogFactory.getLog(getClass());

    protected Class<T> entityClass;

    public GenericDao() {

    }

    protected Class getEntityClass() {
        if (entityClass == null) {
            entityClass = (Class<T>) ((ParameterizedType) getClass()
                    .getGenericSuperclass()).getActualTypeArguments()[0];
            logger.debug("T class = " + entityClass.getName());
        }
        return entityClass;
    }

    public void saveOrUpdate(T t) throws DataAccessException {
        this.getHibernateTemplate().saveOrUpdate(t);
    }

    public T load(ID id) throws DataAccessException {
        T load = (T) getHibernateTemplate().load(getEntityClass(), id);
        return load;
    }

    public T get(ID id) throws DataAccessException {
        T load = (T) getHibernateTemplate().get(getEntityClass(), id);
        return load;
    }

    public boolean contains(T t) throws DataAccessException {
        return getHibernateTemplate().contains(t);
    }

    public void delete(T t, LockMode lockMode) throws DataAccessException {
        getHibernateTemplate().delete(t, lockMode);
    }

    public void delete(T t) throws DataAccessException {
        getHibernateTemplate().delete(t);
    }

    public void deleteAll(Collection<T> entities) throws DataAccessException {
        getHibernateTemplate().deleteAll(entities);
    }

    public List<T> find(String queryString, Object value)
            throws DataAccessException {
        List<T> find = (List<T>) getHibernateTemplate()
                .find(queryString, value);
        return find;
    }

    public List<T> find(String queryString, Object[] values)
            throws DataAccessException {
        List<T> find = (List<T>) getHibernateTemplate().find(queryString,
                values);
        return find;
    }

    public List<T> find(String queryString) throws DataAccessException {
        return (List<T>) getHibernateTemplate().find(queryString);
    }

    public void refresh(T t, LockMode lockMode) throws DataAccessException {
        getHibernateTemplate().refresh(t, lockMode);
    }

    public void refresh(T t) throws DataAccessException {
        getHibernateTemplate().refresh(t);
    }

    public Serializable save(T t) throws DataAccessException {
        return getHibernateTemplate().save(t);
    }

    public void saveOrUpdateAll(Collection<T> entities)
            throws DataAccessException {
        getHibernateTemplate().saveOrUpdateAll(entities);
    }

    public void update(T t, LockMode lockMode) throws DataAccessException {
        getHibernateTemplate().update(t, lockMode);
    }

    public void update(T t) throws DataAccessException {
        getHibernateTemplate().update(t);
    }


    public List<T> list() throws DataAccessException {
        return getHibernateTemplate().loadAll(getEntityClass());

    }

    public List<T> findByNamedQuery(String queryName)
            throws DataAccessException {
        return getHibernateTemplate().findByNamedQuery(queryName);
    }

    public List<T> findByNamedQuery(String queryName, Object value)
            throws DataAccessException {
        return getHibernateTemplate().findByNamedQuery(queryName, value);
    }

    public List<T> findByNamedQuery(String queryName, Object[] values)
            throws DataAccessException {
        return getHibernateTemplate().findByNamedQuery(queryName, values);
    }

    public PaginationSupport findPageByCriteria(
            final DetachedCriteria detachedCriteria, final int pageSize,
            final int startIndex) {
        return (PaginationSupport) getHibernateTemplate().execute(
                new HibernateCallback() {
                    public Object doInHibernate(Session session)
                            throws HibernateException {
                        Criteria criteria = detachedCriteria
                                .getExecutableCriteria(session);
                        int totalCount = ((Integer) criteria.setProjection(
                                Projections.rowCount()).uniqueResult())
                                .intValue();
                        criteria.setProjection(null);
                        List items = criteria.setFirstResult(startIndex)
                                .setMaxResults(pageSize).list();
                        PaginationSupport ps = new PaginationSupport(items,
                                totalCount, pageSize, startIndex);
                        return ps;
                    }
                }, true);
    }

    public PaginationSupport findPageByQuery(final String hsql,
            final int pageSize, final int startIndex) {
        return (PaginationSupport) getHibernateTemplate().execute(
                new HibernateCallback() {
                    public Object doInHibernate(Session session)
                            throws HibernateException, SQLException {
                        Query query = session.createQuery(hsql);
                        int totalCount = query.list().size();
                        query.setFirstResult(startIndex);
                        query.setMaxResults(pageSize);
                        List items = query.list();
                        PaginationSupport ps = new PaginationSupport(items,
                                totalCount, pageSize, startIndex);
                        return ps;

                    }
                }, true);
    }

}


呵呵，使用了泛型,以后每建立一个Dao都要建立相应的dao接口和实现类，如本例中的IUserDao和UserDao。




/** *//**
*
* @author <a href="mailto:[email protected]">flustar</a>
* @version 1.0
* Creation date: Dec 24, 2007 12:47:57 AM
*/
package com.firstssh.dao;

import java.util.List;

import com.firstssh.common.dao.IGenericDao;
import com.firstssh.model.User;

public interface IUserDao extends IGenericDao<User, Integer> {
   
    public User getUserByName(String username);

    public List<User> findAllUser();

    public User findUserByNameAndPass(String username, String password);
}




/** *//**
*
* @author <a href="mailto:[email protected]">flustar</a>
* @version 1.0
* Creation date: Dec 24, 2007 12:38:48 AM
*/
package com.firstssh.dao.impl;

import java.util.List;

import com.firstssh.common.dao.GenericDao;
import com.firstssh.dao.IUserDao;
import com.firstssh.model.User;

public class UserDao extends GenericDao<User,Integer> implements IUserDao{

    public List<User> findAllUser() {
       
        return (List<User>)find("from User");
    }

    public User findUserByNameAndPass(String username, String password) {
        Object[] params=new Object[]{username,password};
        List<User> userList=find("from User as user where user.username=? and user.password=? ",params);
        if(userList!=null&&userList.size()>=1){
            return userList.get(0);
        }
        return null;
    }


    public User getUserByName(String username) {
        List<User> userList=find("from User as user where user.username=?",username);
        if(userList!=null&&userList.size()>=1){
            return userList.get(0);
        }
        return null;
    }

}


还有好多文件的代码没有贴出来，我实在不忍心再复制、粘贴下去了（浪费大家那么多时间）,有兴趣的可以下载这个例子的源代码（由于这个例子牵涉的jar包比较大我就不把它们放进去了），我想以上这些文件的内容我就不用解释了，因为大家都学过SSH。本人初次整合它们，并没有使用这个整合方案做过项目，一定还有某些方面考虑的还不是太成熟，哪位大侠看了，还请多多批评指正，也希望谁有更好的整合方案，也共享一下，大家共同进步，共同提高！～^_^