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Spring+Spring MVC+Hibernate框架搭建实例

2016-03-28 81热度

前言:这里只是说明整个搭建流程,并不进行原理性的讲解

一 下面所需要用到的数据库配置:

数据库方面,使用mysql创建一个users表,具体代码如下:

DROP TABLE IF EXISTS `users`; CREATE TABLE `users` (   `UserID` int(4) NOT NULL AUTO_INCREMENT,   `UserName` varchar(16) NOT NULL,   `Password` varchar(16) NOT NULL,   `Telephone` varchar(16) NOT NULL,   `Address` varchar(16) NOT NULL,   PRIMARY KEY (`UserID`) ) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8; -- ---------------------------- -- Records of users -- ---------------------------- INSERT INTO `users` VALUES ('1', 'aa', 'aa12', 'aa', 'aa'); INSERT INTO `users` VALUES ('2', 'bb', 'bb', 'bb', 'bb'); INSERT INTO `users` VALUES ('3', 'cc', 'cc', 'cc', 'cc'); INSERT INTO `users` VALUES ('7', 'admin', 'admin', '12306', '北京天安门');

二 创建web项目,并导入相关jar包:

创建一个dynamic web project,然后在WEB-INF/lib下导入spring和hibernate的jar包,嫌麻烦的话也可以使用我用到的jar包,链接:http://pan.baidu.com/s/1kUse26z 。整个项目的结构是这样的:

wKiom1b5PsqzayY4AABUPSy5Ub4975.png

三 创建视图页面user.jsp:

路径是:/WEB-INF/jsp/user/user.jsp,代码如下:

<%@ page language="java" contentType="text/html; charset=UTF-8"     pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <base href="<%=basePath%>"> <title>Insert title here</title> </head> <body> <h1>Message : ${message}</h1> </body> </html>

四 根据数据库表的字段建立实体类Users.java:

实体类放在cn.zifangsky.entity包中,这里采用了注解的方式来配置,Users.java代码如下:

package cn.zifangsky.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity(name="users") public class Users implements java.io.Serializable{ @Id @GeneratedValue(strategy=GenerationType.AUTO) @Column(name="UserID") private Integer userId; @Column(name="UserName",length=16) private String userName; @Column(name="Password",length=16) private String password; @Column(name="Telephone",length=16) private String telephone; @Column(name="Address",length=16) private String address; public Users(){ } public Users(Integer userId, String userName, String password, String telephone, String address) { this.userId = userId; this.userName = userName; this.password = password; this.telephone = telephone; this.address = address; } public Integer getUserId() { return userId; } public void setUserId(Integer userId) { this.userId = userId; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getTelephone() { return telephone; } public void setTelephone(String telephone) { this.telephone = telephone; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } }

五 处理框架整合的配置文件:

(1)首先是web.xml,路径是:WEB-INF/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> <!-- 配置Spring --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/classes/spring-*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 定义DispatcherServlet --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/classes/springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 设置字符集 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 控制Session的开关 --> <filter> <filter-name>openSession</filter-name> <filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class> </filter> <filter-mapping> <filter-name>openSession</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>

(2)spring mvc所需要用到的配置文件springmvc-servlet.xml,路径是:src/springmvc-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 ">            <!-- 启用spring mvc 注解 --> <mvc:annotation-driven /> <!-- 不操作静态资源 --> <mvc:default-servlet-handler />       <!-- 启动自动扫描该包下所有的Bean(例如@Controller) -->     <context:component-scan base-package="cn.zifangsky.controller" />            <!-- 定义视图解析器 -->     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">         <property name="prefix">             <value>/WEB-INF/jsp/user/</value>         </property>         <property name="suffix">             <value>.jsp</value>         </property>     </bean>      </beans>

(3)整合hibernate所需要用到的配置文件spring-hibernate.xml,这里为了简单只用了基础的jdbc数据源,路径是src/spring-hibernate.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: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   "> <!-- 声明事务管理器 --> <bean id="myHibTxManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <!-- 定义事务通知 --> <tx:advice id="tx_Advice" transaction-manager="myHibTxManager"> <!-- 定义事务传播规则 --> <tx:attributes> <!-- 对get/load/search开头的方法应用只读事务规则 --> <tx:method name="get*" propagation="SUPPORTS" read-only="true" /> <tx:method name="load*" propagation="SUPPORTS" read-only="true" /> <tx:method name="search*" propagation="SUPPORTS" read-only="true" /> <!-- 对其他方法应用REQUIRED事务规则 --> <tx:method name="*" propagation="REQUIRED" /> </tx:attributes> </tx:advice> <aop:config> <!-- 对com.zxpm.biz包下的所有类的所有方法都应用事务规则 --> <aop:pointcut id="bizMethods" expression="execution(* cn.zifangsky.service.*.*(..))" /> <!-- 将事务通知和切面组合 --> <aop:advisor advice-ref="tx_Advice" pointcut-ref="bizMethods" /> </aop:config> <!-- 配置数据源 --> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://127.0.0.1/zxpm" /> <property name="username" value="root" /> <property name="password" value="root" /> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="packagesToScan"> <list> <!-- 可以加多个包 --> <value>cn.zifangsky.entity</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.show_sql">true</prop> </props> </property> </bean> </beans>

(4)加载bean配置文件spring-bean.xml,当然具体的一些bean将在下一环节中配置,路径:src/spring-bean.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:xsi="http://www.w3.org/2001/XMLSchema-instance"     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 id="usersDAO" class="cn.zifangsky.dao.UsersDAO">           <property name="sessionFactory" ref="sessionFactory"></property>     </bean>     <bean id="userService" class="cn.zifangsky.service.UserService">         <property name="userDao" ref="usersDAO"></property>     </bean> </beans>

六 业务处理DAO,Service和Controller:

(1)UsersDAO.java,在cn.zifangsky.dao这个包中:

package cn.zifangsky.dao; import java.util.List; import org.hibernate.HibernateException; import org.hibernate.Query; import org.hibernate.Session; import org.springframework.orm.hibernate5.HibernateCallback; import org.springframework.orm.hibernate5.support.HibernateDaoSupport; import cn.zifangsky.entity.Users; public class UsersDAO extends HibernateDaoSupport{     public List<Users> getAllUser(){      Object execute =  super.getHibernateTemplate().execute(new HibernateCallback<Object>() {  public Object doInHibernate(Session session) throws HibernateException {  String hql="from users";  Query query = session.createQuery(hql);               return query.list(); } }); return (List<Users>) execute;         } }

(2)UserService.java,在cn.zifangsky.service这个包中:

package cn.zifangsky.service; import cn.zifangsky.dao.UsersDAO; 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;     } }

(3)UserController.java,在cn.zifangsky.controller这个包中:

package cn.zifangsky.controller; import javax.annotation.Resource; 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; import cn.zifangsky.service.UserService; @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("user");         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("user");         return mv;     } }

从上面的代码可以看出,定义了两个请求,分别是:http://localhost:8080/SpringDemo/user/manager 和 http://localhost:8080/SpringDemo/user/count ,分别返回一个字符串和users这个表中数据的条数。下面我们将对这两个请求进行测试

七 测试:

测试结果如下:

http://localhost:8080/SpringDemo/user/manager 

wKioL1b521mD5FVKAAAhKLxcuOA075.png

http://localhost:8080/SpringDemo/user/count

wKiom1b52sbjpmDdAAAbTibyX3Y370.png

可以看出,这个框架已经搭建成功了


注:如果在项目启动时报错的话,第一是检查配置文件中是不是有哪个地方写错了,第二是注意看下/WEB-INF/lib下有没有aopalliance.jar和aspectjweaver-1.5.4.jar这两个jar包。因为我刚开始时就是因为没有这两个jar包,在项目启动时各种报错,真的挺坑的

PS:参考文章:http://www.cnblogs.com/leiOOlei/p/3727859.html

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