JavaWeb_(Spring框架)Spring整合Hibernate
Dao层类要继承HibernateDaoSupport.java父类
原先使用Hibernate框架hibernate.cfg.xml配置数据库
<hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.url">jdbc:mysql:///spring</property> <property name="hibernate.connection.username">root</property> <property name="hibernate.connecton.password">123456</property> <!-- 数据库的方言 --> <property name="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property> <!-- 是否显示sql语句 --> <property name="hibernate.show_sql">true</property> <!-- 是否格式化sql语句 --> <property name="hibernate.format_sql">true</property> <!-- 数据库是否帮我们创建表 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- 隔离级别 不可重复读 默认4级别--> <property name="hibernate.connection.isolation">4</property> <!-- 与线程绑定 --> <property name="hibernate.current_session_context_class">thread</property> <mapping resource="com/Gary/domain/User.hbm.xml"/> </session-factory> </hibernate-configuration>
<?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> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.url">jdbc:mysql:///spring</property> <property name="hibernate.connection.username">root</property> <property name="hibernate.connecton.password">123456</property> <!-- 数据库的方言 --> <property name="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property> <!-- 是否显示sql语句 --> <property name="hibernate.show_sql">true</property> <!-- 是否格式化sql语句 --> <property name="hibernate.format_sql">true</property> <!-- 数据库是否帮我们创建表 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- 隔离级别 不可重复读 默认4级别--> <property name="hibernate.connection.isolation">4</property> <!-- 与线程绑定 --> <property name="hibernate.current_session_context_class">thread</property> <mapping resource="com/Gary/domain/User.hbm.xml"/> </session-factory> </hibernate-configuration>
使用Spring框架整合Hibernate后
<!-- 配置数据库 --> <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="jdbc:mysql:///spring"></property> <property name="driverClass" value="com.mysql.jdbc.Driver"></property> <property name="user" value="root"></property> <property name="password" value="123456"></property> </bean> <!-- 配置sessionFactory --> <bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <property name="dataSource" ref=""></property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="hibernate.hbm2ddl.auto">true</prop> <prop key="hibernate.current_session_context_class">thread</prop> </props> </property>
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 开启注解模式 开启包的时候,会开启包下的所有子包--> <context:component-scan base-package="com.Gary"></context:component-scan> <!-- 配置数据库 --> <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="jdbc:mysql:///spring"></property> <property name="driverClass" value="com.mysql.jdbc.Driver"></property> <property name="user" value="root"></property> <property name="password" value="123456"></property> </bean> <!-- 配置sessionFactory --> <bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> <prop key="hibernate.current_session_context_class">thread</prop> </props> </property> <!-- 配置orm元素据,会自动扫描该包下的 所有 配置文件 --> <property name="mappingDirectoryLocations" value="classpath:com/Gary/domain"></property> </bean> <!-- 配置Action --> <bean name = "userAction" class="com.Gary.web.UserAction" scope="prototype"> <property name="userService" ref="userService"></property> </bean> <!-- 配置Service --> <bean name="userService" class="com.Gary.service.UserService"> <property name="userDao" ref="userDao"></property> </bean> <!--配置Dao --> <bean name="userDao" class="com.Gary.dao.UserDao"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> </beans>
在Dao层用到Session session = HibernateUtils.getCurrentSession();获得session可以修改成
Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();
在Service层用到的关于事务的开启我们可以统一在applicationContext.xml中进行配置
开启事务Transaction beginTransaction = HibernateUtils.getCurrentSession().beginTransaction();
事务回滚beginTransaction.rollback();
提交事务beginTransaction.commit();
在applicationContext.xml中配置事务核心管理器
<!-- 事务的核心管理器 --> <bean name="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager"> <!-- 需要sessionFactory --> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 配置事务的通知 --> <tx:advice id="advice" transaction-manager="transactionManager"> <tx:attributes> <!-- 所有的方法都去增强 --> <tx:method name="*" /> </tx:attributes> </tx:advice> <!-- 织入 --> <aop:config> <!-- 切入点 --> <aop:pointcut expression="execution(* com.Gary.service.*.*(..))" id="pc" /> <!-- 配置切面 --> <aop:advisor advice-ref="advice" pointcut-ref="pc" /> </aop:config>
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 开启注解模式 开启包的时候,会开启包下的所有子包--> <context:component-scan base-package="com.Gary"></context:component-scan> <!-- 配置数据库 --> <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="jdbc:mysql:///spring"></property> <property name="driverClass" value="com.mysql.jdbc.Driver"></property> <property name="user" value="root"></property> <property name="password" value="123456"></property> </bean> <!-- 配置sessionFactory --> <bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> </props> </property> <!-- 配置orm元素据,会自动扫描该包下的 所有 配置文件 --> <property name="mappingDirectoryLocations" value="classpath:com/Gary/domain"></property> </bean> <!-- 事务的核心管理器 --> <bean name="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager"> <!-- 需要sessionFactory --> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 配置事务的通知 --> <tx:advice id="advice" transaction-manager="transactionManager"> <tx:attributes> <!-- 所有的方法都去增强 --> <tx:method name="*" /> </tx:attributes> </tx:advice> <!-- 织入 --> <aop:config> <!-- 切入点 --> <aop:pointcut expression="execution(* com.Gary.service.*.*(..))" id="pc" /> <!-- 配置切面 --> <aop:advisor advice-ref="advice" pointcut-ref="pc" /> </aop:config> <!-- 配置Action --> <bean name = "userAction" class="com.Gary.web.UserAction" scope="prototype"> <property name="userService" ref="userService"></property> </bean> <!-- 配置Service --> <bean name="userService" class="com.Gary.service.UserService"> <property name="userDao" ref="userDao"></property> </bean> <!--配置Dao --> <bean name="userDao" class="com.Gary.dao.UserDao"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> </beans>
在web.xml中扩大Session范围,使Session作用于从页面发起请求一直到页面的关闭
<!-- 扩大到Session范围,页面发起请求 到 页面的关闭 --> <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>
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>Spring</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- 让spring随着web项目的启动而启动 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置spring配置文件的位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 扩大到Session范围,页面发起请求 到 页面的关闭 --> <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> <filter> <filter-name>struts</filter-name> <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
JavaWeb_(Spring框架)在Struts+Hibernate框架中引入Spring框架 传送门
现在使用Spring框架整合Struts+Hibernate项目,运行项目
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <link rel="stylesheet" href="css/head.css" /> <link rel="stylesheet" type="text/css" href="css/login.css" /> </head> <body> <div class="dvhead"> <div class="dvlogo"> <a href="index.html">你问我答</a> </div> <div class="dvsearch">10秒钟注册账号,找到你的同学</div> <div class="dvreg"> 已有账号,立即 <a href="login.html">登录</a> </div> </div> <section class="sec"> <form action="${pageContext.request.contextPath }/UserAction_login" method="post"> <div class="register-box"> <label for="username" class="username_label"> 用 户 名 <input maxlength="20" name="username" type="text" placeholder="您的用户名和登录名" /> </label> <div class="tips"></div> </div> <div class="register-box"> <label for="username" class="other_label"> 密 码 <input maxlength="20" type="password" name="password" placeholder="建议至少使用两种字符组合" /> </label> <div class="tips"></div> </div> <div class="arguement"> <input type="checkbox" id="xieyi" /> 阅读并同意 <a href="javascript:void(0)">《你问我答用户注册协议》</a> <a href="register.html">没有账号,立即注册</a> <div class="tips" style="color: red" > <s:property value="#error"/> </div> </div> <div class="submit_btn"> <button type="submit" id="submit_btn">立 即 登录</button> </div> </form> </section> <script src="js/index.js" type="text/javascript" charset="utf-8"></script> </body>
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>Spring</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- 让spring随着web项目的启动而启动 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置spring配置文件的位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 扩大到Session范围,页面发起请求 到 页面的关闭 --> <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> <filter> <filter-name>struts</filter-name> <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
com.Gary.dao
package com.Gary.dao; import org.hibernate.Session; import org.hibernate.Transaction; import org.hibernate.query.NativeQuery; import org.springframework.orm.hibernate5.support.HibernateDaoSupport; import org.springframework.stereotype.Repository; import com.Gary.domain.User; import com.Gary.utils.HibernateUtils; public class UserDao extends HibernateDaoSupport{ public User findUser(User user) { Session session = getHibernateTemplate().getSessionFactory().getCurrentSession(); //Dao层控制事务 做法是非常不好的 //Session session = HibernateUtils.getCurrentSession(); //sql操作数据库 String sql = "select * from user where username = ? and password = ?"; NativeQuery sqlQuery = session.createSQLQuery(sql); sqlQuery.addEntity(User.class); sqlQuery.setParameter(1, user.getUsername()); sqlQuery.setParameter(2, user.getPassword()); User result = (User) sqlQuery.uniqueResult(); return result; } }
com.Gary.domain
package com.Gary.domain; public class User { private String id; private String username; private String password; public String getId() { return id; } public void setId(String id) { this.id = id; } 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; } }
<?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="com.Gary.domain"> <class name="User" table="user"> <id name="id"> <generator class="uuid"></generator> </id> <property name="username" column="username"></property> <property name="password" column="password"></property> </class> </hibernate-mapping>
com.Gary.service
package com.Gary.service; import javax.annotation.Resource; import org.hibernate.Transaction; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import com.Gary.dao.UserDao; import com.Gary.domain.User; import com.Gary.utils.HibernateUtils; public class UserService { private UserDao userDao; public boolean findUser(User user) { //Transaction beginTransaction = HibernateUtils.getCurrentSession().beginTransaction(); User temp = null; try { temp = userDao.findUser(user); }catch(Exception e){ //beginTransaction.rollback(); } //beginTransaction.commit(); //System.out.println("UserService"+temp); return temp==null?false:true; } public UserDao getUserDao() { return userDao; } public void setUserDao(UserDao userDao) { this.userDao = userDao; } }
com.Gary.utils
package com.Gary.utils; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; public class HibernateUtils { private static SessionFactory sessionFactory = null; static { Configuration config = new Configuration().configure(); sessionFactory = config.buildSessionFactory(); } public static Session getSession() { return sessionFactory.openSession(); } public static Session getCurrentSession() { return sessionFactory.getCurrentSession(); } }
com.Gary.web
package com.Gary.web; import javax.annotation.Resource; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Controller; import com.Gary.domain.User; import com.Gary.service.UserService; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.ModelDriven; public class UserAction extends ActionSupport implements ModelDriven<User>{ public User user = new User(); private UserService userService; public String login() throws Exception { boolean success = userService.findUser(user); //System.out.println("UserService"+user.getUsername()+user.getPassword()); if(success) { return "toIndex"; }else { ActionContext.getContext().put("error", "用户名或者密码错误!!"); return "login"; } } @Override public User getModel() { return user; } public UserService getUserService() { return userService; } public void setUserService(UserService userService) { this.userService = userService; } }
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 开启注解模式 开启包的时候,会开启包下的所有子包--> <context:component-scan base-package="com.Gary"></context:component-scan> <!-- 配置数据库 --> <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="jdbc:mysql:///spring"></property> <property name="driverClass" value="com.mysql.jdbc.Driver"></property> <property name="user" value="root"></property> <property name="password" value="123456"></property> </bean> <!-- 配置sessionFactory --> <bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop> <prop key="hibernate.show_sql">true</prop> <prop key="hibernate.format_sql">true</prop> <prop key="hibernate.hbm2ddl.auto">update</prop> </props> </property> <!-- 配置orm元素据,会自动扫描该包下的 所有 配置文件 --> <property name="mappingDirectoryLocations" value="classpath:com/Gary/domain"></property> </bean> <!-- 事务的核心管理器 --> <bean name="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager"> <!-- 需要sessionFactory --> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <!-- 配置事务的通知 --> <tx:advice id="advice" transaction-manager="transactionManager"> <tx:attributes> <!-- 所有的方法都去增强 --> <tx:method name="*" /> </tx:attributes> </tx:advice> <!-- 织入 --> <aop:config> <!-- 切入点 --> <aop:pointcut expression="execution(* com.Gary.service.*.*(..))" id="pc" /> <!-- 配置切面 --> <aop:advisor advice-ref="advice" pointcut-ref="pc" /> </aop:config> <!-- 配置Action --> <bean name = "userAction" class="com.Gary.web.UserAction" scope="prototype"> <property name="userService" ref="userService"></property> </bean> <!-- 配置Service --> <bean name="userService" class="com.Gary.service.UserService"> <property name="userDao" ref="userDao"></property> </bean> <!--配置Dao --> <bean name="userDao" class="com.Gary.dao.UserDao"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> </beans>
hibernate.cfg.xml【可不写】
<?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> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.url">jdbc:mysql:///spring</property> <property name="hibernate.connection.username">root</property> <property name="hibernate.connecton.password">123456</property> <!-- 数据库的方言 --> <property name="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property> <!-- 是否显示sql语句 --> <property name="hibernate.show_sql">true</property> <!-- 是否格式化sql语句 --> <property name="hibernate.format_sql">true</property> <!-- 数据库是否帮我们创建表 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- 隔离级别 不可重复读 默认4级别--> <property name="hibernate.connection.isolation">4</property> <!-- 与线程绑定 --> <property name="hibernate.current_session_context_class">thread</property> <mapping resource="com/Gary/domain/User.hbm.xml"/> </session-factory> </hibernate-configuration>
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" "http://struts.apache.org/dtds/struts-2.5.dtd"> <struts> <constant name="struts.devMode" value="true"></constant> <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant> <!-- 告诉struts,你不用创建Action,sping来帮你创建Action --> <constant name="struts.objectFactory" value="spring"></constant> <package name="spring" namespace="/" extends="struts-default"> <global-allowed-methods>regex:.*</global-allowed-methods> <action name="UserAction_*" class="com.Gary.web.UserAction" method="{1}"> <result name="login">/login.jsp</result> <result name="toIndex" type="redirect">/index.html</result> </action> </package> </struts>
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