一个典型的SSH登录与增删改查demo详解+源代码

资源下载链接，测试绝对可用SSH整合框架登录加增删改查demo 

一、框架概述

Spring+Struts2+Hibernate（SSH）整合框架是一种非常典型与实用的Web项目MVC架构，其中：

Spring主要通过控制反转（IOC）与依赖注入（DI）控制对象的创建与维护（概念详解可参看博客IOC与DI），与实现面向切片编程（AOP），核心配置文件为：applicationContext.xml。

Struts2是MVC的Controller控制器，主要控制请求与对应业务逻辑、视图的对应关系，核心配置文件为：struts.xml。

Hibernate是持久层框架，主要用于与数据库交互，它的优势在于它把实体类与数据库表建立了映射关系，在进行数据库操作时省去了繁琐的sql语句的构造过程与结果集的配置，使编程者可以以面向对象的思路来方便的进行编程，核心配置文件为：hibernate.cfg.xml与*.hbm.xml。

二、项目包结构

三、实体层(com.mstf.bean)

Javabean的基本构成，包括与数据库表列名对应的私有成员变量，有参与无参的构造方法，成员变量对应的get、set方法，很简单，在此不再赘述。本例中包括User类（用于登录）与Info类（用于增删改查测试）。

四、JUnit测试类（com.mstf.test）

用于测试数据库操作是否正确，以TestUser类为例：

public class TestUser {
    //获取Spring资源文件
    ApplicationContext ac = new FileSystemXmlApplicationContext("classpath:applicationContext.xml");
    SessionFactory sessionFactory = (SessionFactory) ac.getBean("sessionFactory");;
    Session session = sessionFactory.openSession();
    Transaction transaction = session.beginTransaction();

    @Test
    public void testInsert() throws Exception{

        User user = new User("Alin", "123456", 1, 0);
        session.save(user);
        transaction.commit();
        session.close();
    }

    @Test
    public void testDelete() throws Exception{
        User user = new User();
        user.setUser_id(3);
        session.delete(user);
        transaction.commit();
        session.close();
    }

    @Test
    public void testUpdate() throws Exception{
        User user = new User("rose", "666666", 1, 0);
        user.setUser_id(2);
        session.update(user);
        transaction.commit();
        session.close();
    }

    @Test
    public void testSelect1() throws Exception{
        //当查询全部字段时，可省略select *
        Query query = session.createQuery("from User");
        List users = query.list();
        for (User user : users) {
            System.out.println(user.toString());
        }
    }

    @Test
    public void testSelect2() throws Exception{
        //查询部分字段
        Query query = session.createQuery("select new User(username,age,priority) from User");
        List users = query.list();
        for (User users2 : users) {
            System.out.println(users2.toString());
        }
    }
}

五、业务层（com.mstf.service服务接口com.mstf.service.impl实现类）

以UserService与UserServiceImpl为例：

public interface UserService {
    public User loginServce(User user);
}
public class UserServiceImpl implements UserService {

    //hibernate的SessionFactory对象由spring自动注入，入口为getSessionFactory方法
    private SessionFactory sessionFactory;

    @Override
    public User loginServce(User user) {
        //执行数据库查询
        String sql = "from User where username = ? and password = ?";
        @SuppressWarnings("unchecked")
        List list = sessionFactory.getCurrentSession().createQuery(sql)
        .setString(0, user.getUsername())
        .setString(1, user.getPassword()).list();
        if(list != null && list.size() == 1){
            //返回结果
            return list.get(0);
        }
        return null;
    }

    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }
}

六、控制层（com.mstf.action）
以UserAction为例：

public class UserAction extends ActionSupport implements ModelDriven{

    //用于ModelDriven填充对象,入口为getModel方法
    private User user;
    //用于spring自动注入，入口为setUserService方法
    private UserService userService;

    private static final long serialVersionUID = 1L;

    //方法名对应login_*.action中的*通配符
    public String login(){
        //调用service方法，返回从数据库取出的数据
        User returnUser = userService.loginServce(user);
        if(returnUser != null){
            //获取当前request对象
            HttpServletRequest request = ServletActionContext.getRequest();
            //将对象装入session
            request.getSession().setAttribute("User", user);
            //返回视图
            return SUCCESS;
        }
        return ERROR;
    }

    public UserService getUserService(){
        return userService;
    }
    public void setUserService(UserService userService){
        this.userService = userService;
    }

    @Override
    public User getModel() {
        user = new User();
        return user;
    }

}

七、Spring配置文件核心代码

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
        destroy-method="close">
        <property name="driverClass" value="com.mysql.jdbc.Driver" />
        <property name="jdbcUrl" value="jdbc:mysql:///ssh" />
        <property name="user" value="root" />
        <property name="password" value="" />

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

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

        <property name="maxPoolSize" value="300" />

        <property name="maxIdleTime" value="60" />

        <property name="acquireIncrement" value="5" />

        <property name="idleConnectionTestPeriod" value="60" />
    bean>


    <context:component-scan base-package="com.mstf" />


    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />

        <property name="configLocation" value="classpath:hibernate.cfg.xml">property>
    bean>



    <bean id="transactionManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    bean>


    <tx:advice id="personTransaction" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="get*" read-only="true" propagation="NOT_SUPPORTED" />
            <tx:method name="*" />
        tx:attributes>
    tx:advice>
    <aop:config>
        <aop:pointcut expression="execution(* com.mstf.service..*.*(..))"
            id="personPontCut" />
        <aop:advisor advice-ref="personTransaction" pointcut-ref="personPontCut" />
    aop:config>


    <bean id="infoServiceImpl" class="com.mstf.service.impl.InfoServiceImpl">
        <property name="sessionFactory" ref="sessionFactory" />
    bean>


    <bean id="infoAction" class="com.mstf.action.InfoAction">
        <property name="infoService" ref="infoServiceImpl" />
    bean>


    <bean id="userServiceImpl" class="com.mstf.service.impl.UserServiceImpl">
        <property name="sessionFactory" ref="sessionFactory" />
    bean>


    <bean id="userAction" class="com.mstf.action.UserAction">
        <property name="userService" ref="userServiceImpl" />
    bean>

beans>

八、Hibernate配置文件核心代码

<hibernate-mapping package="com.mstf.bean">

    <class name="Info" table="info">

        <id name="id" column="id">
            <generator class="native" />
        id>

        <property name="name" />
        <property name="age" />
        <property name="address" />
    class>

    <class name="User" table="user">
        <id name="user_id" column="user_id">

            <generator class="increment" />
        id>
        <property name="username" column="username"/>
        <property name="password" column="password"/>
        <property name="age" column="age"/>
        <property name="priority" column="priority"/>
    class>

hibernate-mapping>

<hibernate-configuration>
<session-factory>


    <property name="dialect">
        org.hibernate.dialect.MySQL5Dialect
    property>

    <property name="show_sql">trueproperty>

    <property name="hbm2ddl.auto">updateproperty>

    <mapping resource="com/mstf/bean/Bean.hbm.xml" />

session-factory>
hibernate-configuration>

九、struts2配置文件核心代码

<struts>
    <package name="default" namespace="/" extends="struts-default">
        <action name="info_*" class="infoAction" method="{1}">
            <result name="list">/userHomepage.jspresult>
            <result name="addUI">/addUI.jspresult>
            <result name="updateUI">/updateUI.jspresult>
            <result name="tolist" type="redirectAction">info_list.actionresult>
        action>

        <action name="user_*" class="userAction" method="{1}">
            <result name="success" type="redirectAction">info_list.actionresult>
            <result name="error">/error.jspresult>
        action>
    package>

struts>

十、效果图

访问地址：http://localhost:8080/HSS/