详解JAVAEE――SSH三大框架整合（spring+struts2+hibernate）

<?xml version="1.0" encoding="UTF-8"?><beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns="http://www.springframework.org/schema/beans"     xmlns:context="http://www.springframework.org/schema/context"    xmlns:aop="http://www.springframework.org/schema/aop"     xmlns:tx="http://www.springframework.org/schema/tx"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd               http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd               http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd               http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd ">  <bean name="userAction" class="cn.xyp.web.action.UserAction"></bean></beans>

 <!-- 让spring随web启动而创建的监听器 --> <listener>   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置spring配置文件位置参数 --> <context-param>   <param-name>contextConfigLocation</param-name>   <param-value>classpath:applicationContext.xml</param-value> </context-param>

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC  "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"  "http://struts.apache.org/dtds/struts-2.3.dtd">  <struts>  <package name="crm" namespace="/" extends="struts-default">    <action name="UserAction_*" class="cn.xyp.web.action.UserAction" method="{1}">      <result name="success">/success.jsp</result>    </action>  </package></struts>

 <!-- struts2核心过滤器 --> <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>/*</url-pattern> </filter-mapping>

### if specified, the default object factory can be overridden here### Note: short-hand notation is supported in some cases, such as "spring"###    Alternatively, you can provide a com.opensymphony.xwork2.ObjectFactory subclass name here# struts.objectFactory = spring### specifies the autoWiring logic when using the SpringObjectFactory.### valid values are: name, type, auto, and constructor (name is the default)struts.objectFactory.spring.autoWire = name

  <!-- # struts.objectFactory = spring  将action的创建交给spring容器        struts.objectFactory.spring.autoWire = name spring负责装配Action依赖属性      -->  <constant name="struts.objectFactory" value="spring"></constant>

<!-- 整合方案1:class属性上仍然配置action的完整类名        struts2仍然创建action,由spring负责组装Action中的依赖属性     -->    <action name="UserAction_*" class="cn.xyp.web.action.UserAction" method="{1}" >      <result name="toHome" type="redirect" >/index.htm</result>      <result name="error" >/login.jsp</result>    </action>

  <!-- action -->  <!-- 注意:Action对象作用范围一定是多例的.这样才符合struts2架构 -->  <bean name="userAction" class="cn.itcast.web.action.UserAction" scope="prototype" >    <property name="userService" ref="userService" ></property>  </bean>

    <!--        整合方案2:class属性上填写spring中action对象的BeanName         完全由spring管理action生命周期,包括Action的创建         注意:需要手动组装依赖属性     -->    <action name="UserAction_*" class="userAction" method="{1}" >      <result name="toHome" type="redirect" >/index.htm</result>      <result name="error" >/login.jsp</result>    </action>

package cn.xyp.web.domain;import java.util.HashSet;import java.util.Set;public class User {  private Long user_id;  private String user_code;  private String user_name;  private String user_password;  private Character user_state;  public Long getUser_id() {    return user_id;  }  public void setUser_id(Long user_id) {    this.user_id = user_id;  }  public String getUser_code() {    return user_code;  }  public void setUser_code(String user_code) {    this.user_code = user_code;  }  public String getUser_name() {    return user_name;  }  public void setUser_name(String user_name) {    this.user_name = user_name;  }  public String getUser_password() {    return user_password;  }  public void setUser_password(String user_password) {    this.user_password = user_password;  }  public Character getUser_state() {    return user_state;  }  public void setUser_state(Character user_state) {    this.user_state = user_state;  }  @Override  public String toString() {    return "User [user_id=" + user_id + ", user_code=" + user_code + ", user_name=" + user_name + ", user_password="        + user_password + "]";  }}

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC   "-//Hibernate/Hibernate Mapping DTD 3.0//EN"  "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"><hibernate-mapping package="cn.xyp.domain" >  <class name="User" table="sys_user" >    <id name="user_id" >      <generator class="native"></generator>    </id>    <property name="user_code" ></property>    <property name="user_name" ></property>    <property name="user_password" ></property>    <property name="user_state" ></property>    </class></hibernate-mapping>

<?xml version="1.0" encoding="UTF-8"?><!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>       <!-- 数据库驱动 -->    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>     <!-- 数据库url -->    <property name="hibernate.connection.url">jdbc:mysql:///crm_32</property>     <!-- 数据库连接用户名 -->    <property name="hibernate.connection.username">root</property>     <!-- 数据库连接密码 -->    <property name="hibernate.connection.password">1234</property>    <!-- 数据库方言      注意: MYSQL在选择方言时,请选择最短的方言.     -->    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>            <!-- 将hibernate生成的sql语句打印到控制台 -->    <property name="hibernate.show_sql">true</property>    <!-- 将hibernate生成的sql语句格式化(语法缩进) -->    <property name="hibernate.format_sql">true</property>    <!--     自动导出表结构. 自动建表     -->    <property name="hibernate.hbm2ddl.auto">update</property>          <!-- 引入实体配置文件 -->    <mapping resource="cn/xyp/domain/Customer.hbm.xml" />    <mapping resource="cn/xypt/domain/LinkMan.hbm.xml" />    <mapping resource="cn/xyp/domain/User.hbm.xml" />      </session-factory></hibernate-configuration>

<!-- 加载配置方案1:仍然使用外部的hibernate.cfg.xml配置信息 -->  <bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" >    <property name="configLocation" value="classpath:hibernate.cfg.xml" ></property>  </bean> 

  <!-- 加载配置方案2:在spring配置中放置hibernate配置信息 -->  <bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" >    <!-- 将连接池注入到sessionFactory, hibernate会通过连接池获得连接 -->    <property name="dataSource" ref="dataSource" ></property>    <!-- 配置hibernate基本信息 -->    <property name="hibernateProperties">      <props>        <!-- 必选配置 -->        <prop key="hibernate.connection.driver_class" >com.mysql.jdbc.Driver</prop>        <prop key="hibernate.connection.url" >jdbc:mysql:///crm_32</prop>        <prop key="hibernate.connection.username" >root</prop>        <prop key="hibernate.connection.password" >1234</prop>         <prop key="hibernate.dialect" >org.hibernate.dialect.MySQLDialect</prop>                <!-- 可选配置 -->        <prop key="hibernate.show_sql" >true</prop>        <prop key="hibernate.format_sql" >true</prop>        <prop key="hibernate.hbm2ddl.auto" >update</prop>      </props>    </property>    <!-- 引入orm元数据,指定orm元数据所在的包路径,spring会自动读取包中的所有配置 -->    <property name="mappingDirectoryLocations" value="classpath:cn/itcast/domain" ></property>  </bean>

jdbc.jdbcUrl=jdbc:mysql:///xyp_crmjdbc.driverClass=com.mysql.jdbc.Driverjdbc.user=rootjdbc.password=123456

  <!-- 读取db.properties文件 -->  <context:property-placeholder location="classpath:db.properties" />  <!-- 配置c3p0连接池 -->  <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" >    <property name="jdbcUrl" value="${jdbc.jdbcUrl}" ></property>    <property name="driverClass" value="${jdbc.driverClass}" ></property>    <property name="user" value="${jdbc.user}" ></property>    <property name="password" value="${jdbc.password}" ></property>  </bean>

  <bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" >    <!-- 将连接池注入到sessionFactory, hibernate会通过连接池获得连接 -->    <property name="dataSource" ref="dataSource" ></property>

//HibernateDaoSupport 为dao注入sessionFactorypublic class UserDaoImpl extends HibernateDaoSupport implements UserDao {

  @Override  public User getByUserCode(final String usercode) {    //HQL    return getHibernateTemplate().execute(new HibernateCallback<User>() {      @Override      public User doInHibernate(Session session) throws HibernateException {          String hql = "from User where user_code = ? ";          Query query = session.createQuery(hql);          query.setParameter(0, usercode);          User user = (User) query.uniqueResult();        return user;      }    });

    //Criteria    DetachedCriteria dc = DetachedCriteria.forClass(User.class);        dc.add(Restrictions.eq("user_code", usercode));        List<User> list = (List<User>) getHibernateTemplate().findByCriteria(dc);          if(list != null && list.size()>0){      return list.get(0);    }else{      return null;    }

  <!-- Dao -->  <bean name="userDao" class="cn.xyp.dao.impl.UserDaoImpl" >    <!-- 注入sessionFactory -->    <property name="sessionFactory" ref="sessionFactory"></property>  </bean>

  <!-- 核心事务管理器 -->  <bean name="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager" >    <property name="sessionFactory" ref="sessionFactory" ></property>  </bean>

  <!-- 配置通知 -->  <tx:advice id="txAdvice" transaction-manager="transactionManager" >    <tx:attributes>      <tx:method name="save*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" />      <tx:method name="persist*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" />      <tx:method name="update*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" />      <tx:method name="modify*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" />      <tx:method name="delete*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" />      <tx:method name="remove*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" />      <tx:method name="get*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="true" />      <tx:method name="find*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="true" />    </tx:attributes>  </tx:advice>

  <!-- 配置将通知织入目标对象  配置切点  配置切面 -->  <aop:config>    <aop:pointcut expression="execution(* cn.itcast.service.impl.*ServiceImpl.*(..))" id="txPc"/>    <aop:advisor advice-ref="txAdvice" pointcut-ref="txPc" />  </aop:config>

  <!-- 开启注解事务 -->  <tx:annotation-driven transaction-manager="transactionManager" />

@Transactional(isolation=Isolation.REPEATABLE_READ,propagation=Propagation.REQUIRED,readOnly=true)public class UserServiceImpl implements UserService{

  @Override  @Transactional(isolation=Isolation.REPEATABLE_READ,propagation=Propagation.REQUIRED,readOnly=false)  public void saveUser(User u) {    ud.save(u);  }

 <!-- 扩大session作用范围   注意: 任何filter一定要在struts的filter之前调用   因为struts是不会放行的  -->  <filter>   <filter-name>openSessionInView</filter-name>   <filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class> </filter> <filter-mapping>   <filter-name>openSessionInView</filter-name>   <url-pattern>/*</url-pattern> </filter-mapping>

<struts>  <!-- # struts.objectFactory = spring  将action的创建交给spring容器        struts.objectFactory.spring.autoWire = name spring负责装配Action依赖属性      -->  <constant name="struts.objectFactory" value="spring"></constant>  <package name="crm" namespace="/" extends="struts-default" >    <global-exception-mappings>      <exception-mapping result="error" exception="java.lang.RuntimeException"></exception-mapping>    </global-exception-mappings>     <!--        整合方案:class属性上填写spring中action对象的BeanName         完全由spring管理action生命周期,包括Action的创建         注意:需要手动组装依赖属性     -->    <action name="UserAction_*" class="userAction" method="{1}" >      <result name="toHome" type="redirect" >/index.htm</result>      <result name="error" >/login.jsp</result>    </action>  </package></struts>

public class UserAction extends ActionSupport implements ModelDriven<User> {  private User user = new User();    private UserService userService ;    public void setUserService(UserService userService) {    this.userService = userService;  }  public String login() throws Exception {      //1 调用Service执行登陆逻辑      User u = userService.getUserByCodePassword(user);      //2 将返回的User对象放入session域      ActionContext.getContext().getSession().put("user", u);      //3 重定向到项目首页    return "toHome";  }  @Override  public User getModel() {    return user;  }}

  public User getUserByCodePassword(User u) {    // 1 根据登陆名称查询登陆用户    User existU = ud.getByUserCode(u.getUser_code());    // 2 判断用户是否存在.不存在=>抛出异常,提示用户名不存在    if (existU == null) {      throw new RuntimeException("用户名不存在!");    }    // 3 判断用户密码是否正确=>不正确=>抛出异常,提示密码错误    if (!existU.getUser_password().equals(u.getUser_password())) {      throw new RuntimeException("密码错误!");    }    // 4 返回查询到的用户对象    return existU;  }

  public User getByUserCode(final String usercode) {    //Criteria    DetachedCriteria dc = DetachedCriteria.forClass(User.class);    dc.add(Restrictions.eq("user_code", usercode));        List<User> list = (List<User>) getHibernateTemplate().findByCriteria(dc);        if(list != null && list.size()>0){      return list.get(0);    }else{      return null;    }      }