1.web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>spring_struts2_hibernate</display-name>
  <filter>
    <filter-name>openSessionInViewFilter</filter-name>
    <filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>openSessionInViewFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    <init-param>
      <param-name>struts.ui.theme</param-name>
      <param-value>simple</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:config/applicationContext.xml</param-value>
  </context-param>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>

  <servlet>
    <description></description>
    <display-name>userservlet</display-name>
    <servlet-name>userservlet</servlet-name>
    <servlet-class>he.judge.UserServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>userservlet</servlet-name>
    <url-pattern>/userservlet.servlet</url-pattern>
  </servlet-mapping>
</web-app>

2. 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"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx" 
       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">    
    <!-- 配置spring建立容器時要掃描的包 -->
    <context:component-scan base-package="he"></context:component-scan>
    <!-- 配置HibernateTemplate -->
    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate5.HibernateTemplate">
    <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    
    <!-- 配置sessionFactory -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="hibernateProperties">
            <props>
                <!-- 資料庫的方言 -->
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <!-- 是否顯示hibernate生成的SQL語句 -->
                <prop key="hibernate.show_sql">true</prop>
                <!-- 是否使用格式化輸出sql語句到控制檯 -->
                <prop key="hibernate.format_sql">false</prop>
                <!-- 配置hibernate採用何種方式生成DDL語句 -->
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <!-- 把session和執行緒繫結，從而實現一個執行緒只有一個Session -->
                <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate5.SpringSessionContext</prop>
            </props>
        </property>
        <property name="packagesToScan">
            <array>
                <value>he.domain</value>
            </array>
        </property>
    </bean>
    
    <!-- 配置資料來源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/spring_struts2_hibernate"></property>
        <property name="user" value="root"></property>
        <property name="password" value="he1147092409"></property>
    </bean>
    
    <!-- 配置事務管理器 -->
    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    
    <!-- 開啟spring對註解事務的支援 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
    
    <!-- 在業務層需要使用事務的地方使用@Transactional註解 -->
</beans>