在Intellij Idea中使用Maven创建Hibernate&Spring&SpringMVC项目
亿网首先要创建 Spring & SpringMVC 项目
然后添加 Hibernate Maven 依赖
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | <dependency> <groupId>org.hibernate </groupId> <artifactId>hibernate-core </artifactId> <version>4.3.5.Final </version> </dependency> <dependency> <groupId>c3p0 </groupId> <artifactId>c3p0 </artifactId> <version>0.9.1.2 </version> </dependency> <dependency> <groupId>mysql </groupId> <artifactId>mysql-connector-java </artifactId> <version>5.1.31 </version> </dependency> <!–Optional–> <dependency> <groupId>org.hibernate </groupId> <artifactId>hibernate-validator </artifactId> <version>5.1.2.Final </version> </dependency> |
这里使用了 c3p0 作为连接池，当然可以按需求换成其他的，保证连接池的选择和后面的 structure.xml 中的数据库配置一致即可。
添加 Hibernate 配置信息
在 META-INF/properties 下新建 hibernate.properties 用于储存 Hibernate 的具体配置值，方便统一管理，本文以 MySQL 数据为例，内容如下：
| 1 2 3 4 5 6 7 8 9 10 11 | hibernate.dialect=org.hibernate.dialect.MySQLDialect driverClassName=com.mysql.jdbc.Driver validationQuery=SELECT 1 #Replace following with your configuration url=jdbc:mysql://0.0.0.0/test?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull username=test password=test hibernate.hbm2ddl.auto=update hibernate.show_sql=true hibernate.format_sql=true |
随后在 META-INF 下新建 structure.xml 键入以下内容用于整合 Spring 和 Hibernate （也可以直接将beans标签内的内容添加到 Spring 的配置文件中），注意在33行的位置添加要扫描的实体包：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | <?xml version=”1.0″ encoding=”UTF-8″?> <beans xmlns=“http://www.trustauth.cn/schema/beans” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance” xmlns:tx=“http://www.trustauth.cn/schema/tx” xmlns:aop=“http://www.trustauth.cn/schema/aop” xmlns:context=“http://www.trustauth.cn/schema/context” xsi:schemaLocation=“http://www.trustauth.cn/schema/beans http://www.trustauth.cn/schema/beans/spring-beans-3.0.xsd http://www.trustauth.cn/schema/tx http://www.trustauth.cn/schema/tx/spring-tx-3.0.xsd http://www.trustauth.cn/schema/aop http://www.trustauth.cn/schema/aop/spring-aop-3.0.xsd http://www.trustauth.cn/schema/context http://www.trustauth.cn/schema/context/spring-context-3.0.xsd “> <context:property-placeholder location=“classpath:/META-INF/properties/hibernate.properties” /> <bean id=“dataSource” class=“com.mchange.v2.c3p0.ComboPooledDataSource” destroy-method=“close”> <!– MySQL5 –> <property name=“driverClass” value=“${driverClassName}”> </property> <property name=“jdbcUrl” value=“${url}”> </property> <property name=“user” value=“${username}”> </property> <property name=“password” value=“${password}”> </property> <property name=“maxPoolSize” value=“40”> </property> <property name=“minPoolSize” value=“1”> </property> <property name=“initialPoolSize” value=“1”> </property> <property name=“maxIdleTime” value=“20”> </property> </bean> <bean id=“sessionFactory” class=“org.springframework.orm.hibernate4.LocalSessionFactoryBean”> <property name=“dataSource” ref=“dataSource” /> <property name=“packagesToScan”> <array> <value>com.project.entity </value> </array> </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”>${hibernate.show_sql} </prop> <prop key=“hibernate.format_sql”>${hibernate.format_sql} </prop> </props> </property> </bean> <bean id=“transactionManager” class=“org.springframework.orm.hibernate4.HibernateTransactionManager”> <property name=“sessionFactory” ref=“sessionFactory”> </property> </bean> <tx:annotation-driven transaction-manager=“transactionManager” /> </beans> |
如果新建了 structure.xml ，则还需要在 web.xml 中制定配置文件路径：
| 1 2 3 4 5 6 | <context-param> <param-name>contextConfigLocation </param-name> <param-value>classpath: classpath:/META-INF/structure.xml </param-value> </context-param> |
如果要使用 hibernateFilter ，那么还要在 web.xml 中添加一个过滤器，位置放在已有过滤器的后面就好：
| 1 2 3 4 5 6 7 8 | <filter> <filter-name>hibernateFilter </filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter </filter-class> </filter> <filter-mapping> <filter-name>hibernateFilter </filter-name> <url-pattern>/* </url-pattern> </filter-mapping> |
另外，还应该在 Spring 的配置文件中添加对 Entity 、DAO 、Service 包的扫描，算上 controller ，包扫描的配置如下：
| 1 2 3 4 | <context:component-scan base-package=“com.project.controller”/> <context:component-scan base-package=“com.project.DAO”/> <context:component-scan base-package=“com.project.service”/> <context:component-scan base-package=“com.project.entity”/> |
这样，我们就完成了 Hibernate 的配置。
测试
数据库 test 中有表 user：
于是我们在 Sources Root 下新建以下文件：
User.java
| 1 2 3 4 5 6 7 8 9 10 11 12 | @Controller public class UserController { @Autowired private UserService userService; @RequestMapping( “/”) public ModelAndView index(ModelAndView model) { model.addObject( “users”, userService.getUsers() ); model.setViewName( “index”); return model; } } |
UserDAO.java
| 1 2 3 | public interface UserDAO { List getUsers(); } |
UserDAOImpl.java
| 1 2 3 4 5 6 7 8 9 10 11 | @Repository public class UserDAOImpl implements UserDAO { @Autowired private SessionFactory sessionFactory; public List<User> getUsers() { String hql = “FROM User”; Query query = sessionFactory.getCurrentSession().createQuery(hql); return query.list(); } } |
UserService.java
| 1 2 3 | public interface UserService { List<User> getUsers(); } |
UserServiceImpl.java
| 1 2 3 4 5 6 7 8 9 10 | @Service( “userService”) @Transactional public class UserServiceImpl implements UserService { @Autowired private UserDAO userDAO; public List<User> getUsers() { return userDAO.getUsers(); } } |
UserController.java
| 1 2 3 4 5 6 7 8 9 10 11 12 | @Controller public class UserController { @Autowired private UserService userService; @RequestMapping( “/”) public ModelAndView index(ModelAndView model) { model.addObject( “users”, userService.getUsers() ); model.setViewName( “index”); return model; } } |
index.jsp
| 1 2 3 4 5 6 7 8 9 10 11 | <%@ taglib prefix= “c” uri= “http://trustauth.cn/jsp/jstl/core” %> <%@ taglib uri= “http://www.trustauth.cn/tags” prefix= “spring” %> <%@ page contentType= “text/html;charset=UTF-8” language= “java” %> <html> <body> <h2>Hello World!</h2> <c:forEach items= “${users}” var= “user”> ${user.id}: ${user.username}<br/> </c:forEach> </body> </html> |
最后的文件树如下：
运行结果如下：
GDCA（数安时代）拥有国内自主签发信鉴易 TrustAUTH SSL证书以及是国际多家知名品牌：GlobalSign、Symantec、GeoTrust SSL证书指定的国内代理商。为了让国内更多的网站升级到安全的https加密传输协议，五一期间，GDCA推出多种国际知名SSL证书优惠活动，实现HTTPS加密并展示网站真实身份信息。详情请资讯GDCA产品官网在线客服https://www.trustauth.cn/。