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Spring2.5.3+Hibernate3.2+Struts2.0.11整合

1^# 大中小发表于 2008-08-10 16:03:31

Spring2.5.3+Hibernate3.2+Struts2.0.11整合

http://www.blogjava.net/bulktree/archive/2008/04/18/194021.html

只有Struts2基础（初学Hibernate/Spring第三天就想着整合），有些地方不是很懂，看了网上大部分的例子、blog，百分百的MyEclipse插件，本人不太习惯使用MyEclipse，主要是Eclipse使用的时间比较长，使用MyEclipse6.0.1时（第一次用）比如你要输入.getHibernateTemplate()时，输入点时就有提示，但是当我输入点后面的字母出错时，只能返回到输入点之前才按点“.”可以提示，按ALT+/也不会出现，是不是我不知道快捷键，或是其它的方式，总之我在Eclipse中输入一半错误时按ALT+/可以又出来提示，虽然不是特依赖提示功能，但是用起来还是不爽，毕竟每天都在使用它，哪位要是知道的话烦请告诉一声bulktree@126.com。

仅仅看了两天的官方文档就写了这个整合的新闻发布系统，感觉蛮好的，是个好的开始 come on!

以下是一个新闻发布系统的登录模块：（两天看文档，一夜写成的，不是很完善，仅仅实现基本的增删查改功能，主要是整合练习）

首先配置三个框架，有人说要是使用MyEclipse自动生成会有顺序Spring->Hibernate->Struts,太依赖工具不是本人的习惯，这些是后话。
开发工具Eclipse J2EE Developer Tomcat6.0.13 Mysql 6.0
新建Dynamic Web Project

拷贝工程所需的jar包到WEB-INF/lib下

数据库创建脚本

DROPTABLE context;

CREATETABLE context

(

    id VARCHAR(32) NOTNULLPRIMARYKEY,

    title VARCHAR(100),

    times DATETIME,

    content VARCHAR(500),

    author VARCHAR(50),

    click INT,

    typeVARCHAR(50)

);

DROPTABLEuser;

CREATETABLEuser

(

    uid VARCHAR(50) NOTNULLPRIMARYKEY,

    uname VARCHAR(50),

    password VARCHAR(50) NOTNULL

);

在web.xml中配置Struts2和Spring

<filter>

       <filter-name>Struts2</filter-name>

       <filter-class>

           org.apache.struts2.dispatcher.FilterDispatcher

       </filter-class>

    </filter>

    <filter>

       <filter-name>encodingFilter</filter-name>

       <filter-class>

           org.springframework.web.filter.CharacterEncodingFilter

       </filter-class>

       <init-param>

           <param-name>encodingFilter</param-name>

           <param-value>UTF-8</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>

项目中我使用的是Tomcat数据源配置如下，如果你不使用Tomcat数据源也可以在下面的配置文件中配置：

<Context docBase="news-SSH2" path="/news-SSH2" reloadable="true" source="org.eclipse.jst.jee.server:news-SSH2">

              <Resource auth="Container" driverClassName="com.mysql.jdbc.Driver" maxActive="100" maxIdle="30" maxWait="10000" name="jdbc/news" password="1234" type="javax.sql.DataSource" url="jdbc:mysql://localhost:3306/news?autoReconnect=true" username="root"/>

           </Context>

也在在配置applicationContext.xml文件中配置数据源

<!-- 定义数据源Bean，使用C3P0数据源实现 -->

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

       <!-- 指定连接数据库的驱动 -->

       <property name="driverClass" value="com.mysql.jdbc.Driver"/>

       <!-- 指定连接数据库的URL -->

       <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/news"/>

       <!-- 指定连接数据库的用户名 -->

       <property name="user" value="root"/>

       <!-- 指定连接数据库的密码 -->

       <property name="password" value="1234"/>

       <!-- 指定连接数据库连接池的最大连接数 -->

       <property name="maxPoolSize" value="20"/>

       <!-- 指定连接数据库连接池的最小连接数 -->

       <property name="minPoolSize" value="1"/>

       <!-- 指定连接数据库连接池的初始化连接数 -->

       <property name="initialPoolSize" value="1"/>

       <!-- 指定连接数据库连接池的连接的最大空闲时间 -->

       <property name="maxIdleTime" value="20"/>

   </bean>

在applicationContext.xml中配置sessionFactory

<bean id="dataSource"

        class="org.springframework.jndi.JndiObjectFactoryBean">

       <property name="jndiName" value="java:comp/env/jdbc/news"></property>

    </bean>

    <!-- 管理Hibernate -->

    <bean id="sessionFactory"

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

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

       <property name="mappingResources">

           <list>

              <value>org/bulktree/ssh2/news/vo/User.hbm.xml</value>

              <value>org/bulktree/ssh2/news/vo/News.hbm.xml</value>

           </list>

       </property>

       <property name="hibernateProperties">

           <value>

              hibernate.dialect=org.hibernate.dialect.MySQLDialect

           </value>

       </property>

    </bean>

3. 开始编码：
我们必须明确Spring框架的体系结构，新建以下几个包

User.java

package org.bulktree.ssh2.news.vo;

publicclass User {

    private String uid;

    private String uname;

    private String password;

    public String getUid() {

       returnuid;

    }

    Getter/setter’’’’’’’’’’’

    publicvoid setPassword(String password) {

       this.password = password;

    }

}

在User类同包下即org.bulktree.ssh2.news.vo新建User.hbm.xml文件

<?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="org.bulktree.ssh2.news.vo">

 <class name="User" table="user">

 <id column="uid" name="uid" type="string">

   <generator class="assigned"/>

 </id>

 <property column="uname" name="uname" type="string"/>

 <property column="password" name="password" type="string"/>

 </class>

</hibernate-mapping>

新建UserDao.java接口

package org.bulktree.ssh2.news.dao;

import java.util.List;

import org.bulktree.ssh2.news.vo.User;

publicinterface UserDao {

    /**

     *增加一个用户

     *@throwsException

     */

    publicvoid addUser(User user) throws Exception;

    /**

     *根据uid/password查询User

     *@paramuid

     *@parampassword

     *@return

     *@throwsException

     */

    public User queryByUidAndPassword(String uid, String password) throws Exception;

    /**

     *删除用户

     *@paramuid

     *@throwsException

     */

    publicvoid delete(String uid) throws Exception;

    /**

     *查询全部用户

     *@returnList

     *@throwsException

     */

    public List<User> queryAll() throws Exception;

}

UserDaoImpl.java接口实现类

package org.bulktree.ssh2.news.dao.impl;

import java.util.List;

import org.bulktree.ssh2.news.dao.UserDao;

import org.bulktree.ssh2.news.vo.User;

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

/**

 * 继承HibernateDaoSuppor类实现getHibernateTemplate()

 *

 * @author bulktree

 *

 */

public class UserDaoImpl extends HibernateDaoSupport implements UserDao {

    @Override

    public void addUser(User user) throws Exception {

       this.getHibernateTemplate().save(user);

    }

    @Override

    public void delete(String uid) throws Exception {

       // TODO Auto-generated method stub

    }

    @Override

    public List<User> queryAll() throws Exception {

       // TODO Auto-generated method stub

       return null;

    }

    @Override

    public User queryByUidAndPassword(String uid, String password)

           throws Exception {

       String hql = "FROM User as u WHERE u.uid=? and u.password=?";

       String[] str = new String[] { uid, password };

       List<User> users = this.getHibernateTemplate().find(hql, str);

       if (users != null && users.size() >= 1) {

           return users.get(0);

       } else {

           return null;

       }

    }

}

Service层，新建一UserService.java接口

package org.bulktree.ssh2.news.service;

publicinterface UserService {

    /**

     *添加一个用户

     *@paramuid

     *@paramuname

     *@parampassword

     *@return新增用户的uid

     *@throwsException

     */

    public String addUser(String uid, String uname, String password) throws Exception;

    /**

     *验证登录

     *@paramuid

     *@parampassword

     *@returnuid

     *@throwsException

     */

    public String isLogin(String uid, String password) throws Exception;

}

接口实现类

package org.bulktree.ssh2.news.service.impl;

import org.bulktree.ssh2.news.dao.UserDao;

import org.bulktree.ssh2.news.service.UserService;

import org.bulktree.ssh2.news.vo.User;

/**

 * UserService实现类

 *

 * @author bulktree

 *

 */

public class UserServiceImpl implements UserService {

    private UserDao userDao;

    public void setUserDao(UserDao userDao) {

       this.userDao = userDao;

    }

    @Override

    public String addUser(String uid, String uname, String password)

           throws Exception {

       User user = new User();

       user.setUid(uid);

       user.setUname(uname);

       user.setPassword(password);

       userDao.addUser(user);

       return user.getUid();

    }

    @Override

    public String isLogin(String uid, String password) throws Exception {

       User user = userDao.queryByUidAndPassword(uid, password);

       if(user != null) {

           return user.getUname();

       } else {

           return null;

       }

    }

}

最后我们新建一Action，LoginAction.java

package org.bulktree.ssh2.news.action;

import java.util.Map;

import org.bulktree.ssh2.news.service.UserService;

import org.bulktree.ssh2.news.vo.User;

import com.opensymphony.xwork2.ActionContext;

import com.opensymphony.xwork2.ActionSupport;

/**

 * 登录Action

 * @author bulktree

 *

 */

public class LoginAction extends ActionSupport {

    private User user;

    private UserService userService;

    public User getUser() {

       return user;

    }

    public void setUser(User user) {

       this.user = user;

    }

    public UserService getUserService() {

       return userService;

    }

    public void setUserService(UserService userService) {

       this.userService = userService;

    }

    @Override

    public String execute() throws Exception {

       if (isInvalid(user.getUid())) {

           this.addFieldError("uid", "登录ID不能为空");

           return INPUT;

       }

       if (isInvalid(user.getPassword())) {

           this.addFieldError("password", "密码项不能为空");

           return INPUT;

       }

      

       String uname = userService.isLogin(user.getUid(), user.getPassword());

       if (uname != null) {

           Map session = ActionContext.getContext().getSession();

           session.put("uname", uname);

           session.put("uid", user.getUid());

           return SUCCESS;

       } else {

           this.addFieldError("idorpassword", "登录ID或密码错误");

           return INPUT;

       }

    }

    private boolean isInvalid(String value) {

       return (value == null || value.length() == 0);

    }

}

下来就是login.jsp页面文件了

<center>

    <div style="color: red"><s:fielderror /><s:actionmessage /></div>

<s:form action="login" method="post">

    <s:textfield name="user.uid" label="UID" tooltip="ENTER YOUR UID" />

    <s:password name="user.password" label="PASSWORD"

       tooltip="ENTER YOUR PASSWORD" />

    <s:submit></s:submit>

   

</s:form>

<s:a href="regist.jsp">REGIST NEW COUNT</s:a></center>

下来就是applicationContext.xml文件的配置

<bean id="userdao" class="org.bulktree.ssh2.news.dao.impl.UserDaoImpl">

       <property name="sessionFactory">

           <ref bean="sessionFactory"/>

       </property>

    </bean>

   

    <!-- bean配置 -->

    <bean id="newsdao" class="org.bulktree.ssh2.news.dao.impl.NewsDaoImpl">

       <property name="sessionFactory">

           <ref bean="sessionFactory"/>

       </property>

    </bean>

    <bean id="loginAction" class="org.bulktree.ssh2.news.action.LoginAction">

       <property name="userService">

           <ref bean="userservice"/>

       </property>

    </bean>

   

        </bean>

·bean的id属性就是对应类class的实例

·property元素的name属性为bean的class属性对应类的属性名，

·ref为引用bean，引用的是bean的id

Struts.xml文件完整配置

<?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>

    <constant name="struts.i18n.encoding" value="UTF-8" />

    <package name="SSH2" extends="struts-default">

       <action name="login" class="loginAction">

           <result>/addNews.jsp</result>

           <result name="input">/login.jsp</result>

       </action>

      

       <action name="regist" class="registAction">

           <result>/login.jsp</result>

           <result name="input">/regist.jsp</result>

       </action>

      

       <action name="listall" class="listallAction">

           <result>/newsList.jsp</result>

           <result name="input">/addNews.jsp</result>

       </action>

      

       <action name="notice" class="noticeAction">

           <result type="redirect-action">listall</result>

           <result name="input">/addNews.jsp</result>

       </action>

    </package>

   

</struts>

·form表单的action对应struts.xml文件中的action的name属性，由于Strust由Spring管理，struts.xml文件中的action元素class属性对应的是applicationContext.xml文件中bean元素id属性

最后贴上完整的applicationContext.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"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

    <!-- 使用JNDI数据源 -->

    <bean id="dataSource"

       class="org.springframework.jndi.JndiObjectFactoryBean">

       <property name="jndiName" value="java:comp/env/jdbc/news"></property>

    </bean>

    <!-- 管理Hibernate -->

    <bean id="sessionFactory"

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

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

       <property name="mappingResources">

           <list>

              <value>org/bulktree/ssh2/news/vo/User.hbm.xml</value>

              <value>org/bulktree/ssh2/news/vo/News.hbm.xml</value>

           </list>

       </property>

       <property name="hibernateProperties">

           <value>

              hibernate.dialect=org.hibernate.dialect.MySQLDialect

           </value>

       </property>

    </bean>

   

    <bean id="userdao" class="org.bulktree.ssh2.news.dao.impl.UserDaoImpl">

       <property name="sessionFactory">

           <ref bean="sessionFactory"/>

       </property>

    </bean>

   

    <!-- bean配置 -->

    <bean id="newsdao" class="org.bulktree.ssh2.news.dao.impl.NewsDaoImpl">

       <property name="sessionFactory">

           <ref bean="sessionFactory"/>

       </property>

    </bean>

    <bean id="userservice" class="org.bulktree.ssh2.news.service.impl.UserServiceImpl">

       <property name="userDao">

           <ref bean="userdao"/>

       </property>

    </bean>

   

    <bean id="newservice" class="org.bulktree.ssh2.news.service.impl.NewsServiceImpl">

       <property name="newsDao">

           <ref bean="newsdao"/>

       </property>

    </bean>

   

    <bean id="loginAction" class="org.bulktree.ssh2.news.action.LoginAction">

       <property name="userService">

           <ref bean="userservice"/>

       </property>

    </bean>

   

    <bean id="registAction" class="org.bulktree.ssh2.news.action.RegistAction">

       <property name="userService">

           <ref bean="userservice"/>

       </property>

    </bean>

    <bean id="noticeAction" class="org.bulktree.ssh2.news.action.NoticeNewsAction">

       <property name="newsService">

           <ref bean="newservice"/>

       </property>

    </bean>

   

    <bean id="listallAction" class="org.bulktree.ssh2.news.action.QueryAllNews">

       <property name="newsDao">

           <ref bean="newsdao"/>

       </property>

    </bean>

</beans>

·applicationContext.xml文件默认加载路径classpath下，也就是WEB-INF下

·整个工程没有用到hibernate.cfg.xml文件，Spring管理了hibernate,这个文件不起什么作用了，但是最好还是加上

<?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="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>

 <mapping class="com.bulktree.ssh2.vo.User"

   package="com.bulktree.ssh2.vo" resource="com/bulktree/ssh2/vo/User.hbm.xml"/>

 </session-factory>

</hibernate-configuration>

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