web.xml文件

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"

         version="3.1">

    <listener>

        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener>

    <context-param>

        <param-name>contextConfigLocation</param-name>

        <param-value>classpath:bean.xml</param-value>

    </context-param>

    <filter>

        <filter-name>struts2</filter-name>

        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>

    </filter>

    <filter-mapping>

        <filter-name>struts2</filter-name>

        <url-pattern>*.action</url-pattern>

    </filter-mapping>

</web-app>

bean.xml文件：

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"

       xmlns:aop="http://www.springframework.org/schema/aop"

       xmlns:context="http://www.springframework.org/schema/context"

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <import resource="classpath:zhongfucheng/test/config/test-spring.xml"/>

    <!-- 导入外部的properties配置文件 -->

    <context:property-placeholder location="classpath:db.properties" />

    <!-- 配置c3p0数据源 -->

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">

        <property name="jdbcUrl" value="${jdbcUrl}"></property>

        <property name="driverClass" value="${driverClass}"></property>

        <property name="user" value="${user}"></property>

        <property name="password" value="${password}"></property>

        <!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->

        <property name="initialPoolSize" value="${initialPoolSize}"></property>

        <!--连接池中保留的最小连接数。Default: 3 -->

        <property name="minPoolSize" value="3"></property>

        <!--连接池中保留的最大连接数。Default: 15 -->

        <property name="maxPoolSize" value="${maxPoolSize}"></property>

        <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->

        <property name="acquireIncrement" value="3"></property>

        <!--最大空闲时间，1800秒内未使用则连接被丢弃，若为0则永不丢弃。Default: 0 -->

        <property name="maxIdleTime" value="1800"></property>

    </bean>

    <bean id="sessionFactory"

          class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

        <property name="dataSource" ref="dataSource"></property>

        <property name="hibernateProperties">

            <props>

                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>

                <prop key="hibernate.show_sql">true</prop>

                <prop key="hibernate.hbm2ddl.auto">update</prop>

                <prop key="javax.persistence.validation.mode">none</prop>

            </props>

        </property>

        <property name="mappingLocations">

            <list>

                <value>classpath:zhongfucheng/test/entity/*.hbm.xml</value>

            </list>

        </property>

    </bean>

    <bean id="txManager"

          class="org.springframework.orm.hibernate3.HibernateTransactionManager">

        <property name="sessionFactory" ref="sessionFactory" />

    </bean>

    <tx:advice id="txAdvice" transaction-manager="txManager">

        <tx:attributes>

            <tx:method name="find*" read-only="true" />

            <tx:method name="get*" read-only="true" />

            <tx:method name="load*" read-only="true" />

            <tx:method name="list*" read-only="true" />

            <tx:method name="search*" read-only="true" />

            <tx:method name="*" rollback-for="Throwable" />

        </tx:attributes>

    </tx:advice>

    <aop:config>

        <aop:pointcut id="serviceOperation" expression="bean(*Service*)" />

        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation" />

    </aop:config>

    <!-- 所有业务dao的parent -->

    <bean id="baseDao" abstract="true">

        <property name="sessionFactory" ref="sessionFactory"></property>

    </bean>

</beans>

log4j.properties文件：

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Target=System.out

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p [%t] %c{1}:%L - %m%n

#默认从warn开始

log4j.rootLogger=warn, stdout, R

log4j.logger.zhongfucheng.test=debug

log4j.appender.R=org.apache.log4j.DailyRollingFileAppender

#R.File是把日志信息输出到哪里

log4j.appender.R.File=D:/itcast/itcast.log

log4j.appender.R.layout=org.apache.log4j.PatternLayout

log4j.appender.R.layout.ConversionPattern=%d [%t] %5p  %c - %m%n

db.properties文件

--------------------mysql----------------------

jdbcUrl=jdbc:mysql://localhost:3306/SSH03?useUnicode=true&characterEncoding=utf8

driverClass=com.mysql.jdbc.Driver

user=root

password=root

initialPoolSize=10

maxPoolSize=30

--------------------sqlserver----------------------

jdbcUrl=jdbc:sqlserver://localhost:1433;DatabaseName=zhongfucheng

driverClass=com.microsoft.sqlserver.jdbc.SQLServerDriver

user=sa

password=sql

initialPoolSize=10

maxPoolSize=30

Struts2.xml文件

<?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>

    <!-- 禁用动态方法访问 -->

    <constant name="struts.enable.DynamicMethodInvocation" value="false" />

    <!-- 配置成开发模式 -->

    <constant name="struts.devMode" value="true" />

    <!-- 配置拓展名为action -->

    <constant name="struts.action.extention" value="action" />

    <!-- 把主题配置成simple -->

    <constant name="struts.ui.theme" value="simple" />

    <include file="zhongfucheng/test/config/test-Struts2.xml"/>

</struts>

BaseDao.java

package zhongfucheng.core.dao;

import java.io.Serializable;

import java.util.List;

public interface BaseDao<T> {

    //新增

    public void save(T entity);

    //更新

    public void update(T entity);

    //根据id删除

    public void delete(Serializable id);

    //根据id查找

    public T findObjectById(Serializable id);

    //查找列表

    public List<T> findObjects();

}

baseDaoImpl.java

package zhongfucheng.core.dao.impl;

import org.hibernate.Query;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import zhongfucheng.core.dao.BaseDao;

import java.io.Serializable;

import java.lang.reflect.ParameterizedType;

import java.util.List;

public abstract class BaseDaoImpl<T> extends HibernateDaoSupport implements BaseDao<T> {

    Class<T> clazz;

    public BaseDaoImpl(){

        ParameterizedType pt =  (ParameterizedType)this.getClass().getGenericSuperclass();//BaseDaoImpl<User>

        clazz = (Class<T>)pt.getActualTypeArguments()[0];

    }

    @Override

    public void save(T entity) {

        getHibernateTemplate().save(entity);

    }

    @Override

    public void update(T entity) {

        getHibernateTemplate().update(entity);

    }

    @Override

    public void delete(Serializable id) {

        getHibernateTemplate().delete(findObjectById(id));

    }

    @Override

    public T findObjectById(Serializable id) {

        return getHibernateTemplate().get(clazz, id);

    }

    @Override

    public List<T> findObjects() {

        Query query = getSession().createQuery("FROM " + clazz.getSimpleName());

        return query.list();

    }

}