Spring4 MVC Hibernate4集成

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一、本文所用环境

Spring4.0.3.RELEASE

Hibernate4.3.5.Final

Mysql

二、工程目录

三、 Maven添加依赖

用Maven创建项目，pom.xml如下：

 View Code

四、新建数据库表

数据库采用Mysql，新建users表，我们演示操作此表

CREATE TABLE `users` (  `id` int(11) NOT NULL AUTO_INCREMENT,  `age` int(11) DEFAULT NULL,  `nice_name` varchar(32) DEFAULT NULL,  `user_name` varchar(32) DEFAULT NULL,  PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;

创建Entity类Users.java见下

package com.lei.demo.entity;import javax.persistence.*;@Entity(name="users")public class Users {        public Users(){        super();    }        @Id    @GeneratedValue(strategy=GenerationType.AUTO)    @Column(name="id")    private Integer id;        @Column(name="user_name",length=32)    private String user_name;        @Column(name="age")    private Integer age;        @Column(name="nice_name",length=32)    private String nice_name;        public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getUser_name() {        return user_name;    }    public void setUser_name(String user_name) {        this.user_name = user_name;    }    public Integer getAge() {        return age;    }    public void setAge(Integer age) {        this.age = age;    }    public String getNice_name() {        return nice_name;    }    public void setNice_name(String nice_name) {        this.nice_name = nice_name;    }}

五、配置文件

1. 首先看一下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"     xmlns:web="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_3_0.xsd"         id="WebApp_ID" version="3.0">  <display-name>Archetype Created Web Application</display-name>  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:/spring-*.xml</param-value>  </context-param>  <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <!-- 定义DispatcherServlet -->  <servlet>    <servlet-name>lei-dispatcher</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <!-- 默认/WEB-INF/[servlet名字]-servlet.xml加载上下文，           如果配置了contextConfigLocation参数，          将使用classpath:/lei-dispatcher-servlet.xml加载上下文      -->      <param-name>contextConfigLocation</param-name>      <param-value>classpath:/lei-dispatcher-servlet.xml</param-value>    </init-param>    <load-on-startup>1</load-on-startup>  </servlet>  <!-- 拦截匹配的请求，这里所有请求采用名字为lei-dispatcher的DispatcherServlet处理 -->  <servlet-mapping>    <servlet-name>lei-dispatcher</servlet-name>    <url-pattern>/</url-pattern>  </servlet-mapping></web-app>

2. lei-dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:p="http://www.springframework.org/schema/p"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:tx="http://www.springframework.org/schema/tx"    xsi:schemaLocation="        http://www.springframework.org/schema/beans             http://www.springframework.org/schema/beans/spring-beans-3.0.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context-3.0.xsd        http://www.springframework.org/schema/mvc        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd        http://www.springframework.org/schema/tx        http://www.springframework.org/schema/tx/spring-tx-4.0.xsd        ">            <!-- 启动自动扫描该包下所有的Bean(例如@Controller) -->    <context:component-scan base-package="com.lei.demo" />        <!-- 定义视图解析器 -->    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix">            <value>/WEB-INF/user/</value>        </property>        <property name="suffix">            <value>.jsp</value>        </property>    </bean>    </beans>

3. Spring-hibernate的整合

spring-hibernate.xml文件

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:context="http://www.springframework.org/schema/context"    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"    xsi:schemaLocation="        http://www.springframework.org/schema/beans             http://www.springframework.org/schema/beans/spring-beans-4.0.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context-4.0.xsd        http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop/spring-aop-4.0.xsd        http://www.springframework.org/schema/tx        http://www.springframework.org/schema/tx/spring-tx-4.0.xsd        ">    <!-- Hibernate4 -->    <!-- 加载资源文件  其中包含变量信息，必须在Spring配置文件的最前面加载，即第一个加载-->    <context:property-placeholder location="classpath:persistence-mysql.properties" />        <bean id="sessionFactory"         class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <property name="packagesToScan">            <list>                <!-- 可以加多个包 -->                <value>com.lei.demo.entity</value>            </list>        </property>        <property name="hibernateProperties">            <props>                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>                <prop key="hibernate.dialect">${hibernate.dialect}</prop>                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>                <!--  <prop key="hibernate.current_session_context_class">thread</prop> -->             </props>        </property>    </bean>        <!-- 数据库映射 -->    <!--  class="org.apache.tomcat.dbcp.dbcp.BasicDataSource" -->    <!--  class="org.springframework.jdbc.datasource.DriverManagerDataSource" -->    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">      <property name="driverClassName" value="${jdbc.driverClassName}" />      <property name="url" value="${jdbc.url}" />      <property name="username" value="${jdbc.user}" />      <property name="password" value="${jdbc.pass}" />   </bean>       <!-- 配置Hibernate事务管理器 -->    <bean id="transactionManager"        class="org.springframework.orm.hibernate4.HibernateTransactionManager">      <property name="sessionFactory" ref="sessionFactory" />   </bean>      <!-- 配置事务异常封装 -->   <bean id="persistenceExceptionTranslationPostProcessor"        class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />      <!--  声明式容器事务管理 ,transaction-manager指定事务管理器为transactionManager -->    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <tx:method name="add*" propagation="REQUIRED" />            <tx:method name="get*" propagation="REQUIRED" />            <tx:method name="*" read-only="true" />        </tx:attributes>    </tx:advice>        <aop:config expose-proxy="true">        <!-- 只对业务逻辑层实施事务 -->        <aop:pointcut id="txPointcut" expression="execution(* com.lei.demo.service..*.*(..))" />        <!-- Advisor定义，切入点和通知分别为txPointcut、txAdvice -->        <aop:advisor pointcut-ref="txPointcut" advice-ref="txAdvice"/>    </aop:config>    </beans>

事务采用tx:advice和aop:config的xml配置方式实现。事务的其他实现方式见《Spring MVC事务配置》

资源文件persistence-mysql.properties如下：

# jdbc.Xjdbc.driverClassName=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://yourServerIP:3306/yourDatabase?createDatabaseIfNotExist=truejdbc.user=userjdbc.pass=password# hibernate.Xhibernate.connection.driverClass=org.gjt.mm.mysql.Driverhibernate.connection.url=jdbc:mysql:// yourServerIP:3306/yourDatabasehibernate.dialect=org.hibernate.dialect.MySQL5Dialecthibernate.connection.username=userhibernate.connection.password=passwordhibernate.show_sql=truehibernate.hbm2ddl.auto=create-drop

六、 DAO、Service

UsersDAO.java如下：

package com.lei.demo.dao;import java.util.List;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import com.lei.demo.entity.Users;public class UsersDAO {    private SessionFactory sessionFactory;    public void setSessionFactory(SessionFactory sessionFactory) {        this.sessionFactory = sessionFactory;    }    public SessionFactory getSessionFactory() {        return sessionFactory;    }    public List<Users> getAllUser(){        String hsql="from users";        Session session = sessionFactory.getCurrentSession();        Query query = session.createQuery(hsql);                return query.list();    }}

UserService.java如下：

package com.lei.demo.service;import com.lei.demo.dao.*;public class UserService {    private UsersDAO userDao;        public int userCount(){        return userDao.getAllUser().size();    }    public UsersDAO getUserDao() {        return userDao;    }    public void setUserDao(UsersDAO userDao) {        this.userDao = userDao;    }}

七、加载Bean配置文件

这里主要是加载上边的dao、service

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:context="http://www.springframework.org/schema/context"    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-3.2.xsd        http://www.springframework.org/schema/context      http://www.springframework.org/schema/context/spring-context-3.2.xsd">          <bean id="usersDAO" class="com.lei.demo.dao.UsersDAO">          <property name="sessionFactory" ref="sessionFactory"></property>    </bean>    <bean id="userService" class="com.lei.demo.service.UserService">        <property name="userDao" ref="usersDAO"></property>    </bean></beans>

当然你也可以不采用xml配置bean，采用注释加载bean，见《Spring3系列7- 自动扫描组件或Bean》、《Spring 开启Annotation <context:annotation-config> 和 <context:component-scan>诠释及区别》

八、 JSP页面和Controller

WEB-INF/user/users.jsp如下：

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body>    <h1>Message : ${message}</h1></body></html>

写Controller访问上边的jsp

package com.lei.demo.controller;import javax.annotation.Resource;import com.lei.demo.service.*;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.servlet.ModelAndView;@Controller@RequestMapping("/user")public class UserController {        @Resource(name="userService")    private UserService service;        @RequestMapping(value="/manager",method=RequestMethod.GET)    public ModelAndView hello2(){        ModelAndView mv = new ModelAndView();        mv.addObject("message", "HelloMVC");        mv.setViewName("users");        return mv;    }        @RequestMapping(value="/count",method=RequestMethod.GET)    public ModelAndView count(){                int c = service.userCount();                ModelAndView mv = new ModelAndView();        mv.addObject("message", c);        mv.setViewName("users");        return mv;    }}