用代码配置Spring IoC容器+整合hibernate

1、创建config类

@Configuration
public class AppConfig {}

@Configuration表示这是spring的配置文件

2、配置数据库连接池

    @Bean
    public DataSource DataSource() {
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://localhost:3306/hib?useUnicode=true&characterEncoding=utf8");
        dataSource.setUsername("root");
        dataSource.setPassword("123456");
        dataSource.setInitialSize(10);
        dataSource.setMaxIdle(50);
        return dataSource;
    }

3、配置会话工厂

    @Bean
    public LocalSessionFactoryBean sessionFactory(DataSource dataSource) {
        LocalSessionFactoryBean bean = new LocalSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setPackagesToScan(new String[] {"com.kygo.entity"});
        Properties props = new Properties();
        props.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
        props.setProperty("hibernate.show_sql", "true");
        props.setProperty("hibernate.format_sql", "true");
        bean.setHibernateProperties(props);
        return bean;
    }

4、配置事务管理

    @Bean
    public HibernateTransactionManager transactionManager(SessionFactory sessionFactory) {
        HibernateTransactionManager transactionManager = new HibernateTransactionManager();
        transactionManager.setSessionFactory(sessionFactory);
        return transactionManager;
    }

5、支持动态代理和声明式事务

@Configuration
@EnableAspectJAutoProxy
@EnableTransactionManagement
public class AppConfig {}

Spring整合struts2+hibernate

需要jar包

spring-web-4.3.7.RELEASE.jar

创建applicationContext.xml和struts.xml

struts.xml

<?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.objectFactory" value="spring" />
    <constant name="struts.devMode" value="true" />
    <constant name="struts.action.extension" value="do" />
    
    <package name="default" extends="struts-default" namespace="/">
        <action name="index" class="showGoods">
            <result>/WEB-INF/jsp/index.jsp</result>
        </action>
    </package>
 
</struts>

<constant name="struts.objectFactory" value="spring" />
将action对象交给springIoC容器管理

配置web.xml

    <!-- 通过上下文参数指定Spring的配置文件 -->   
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    <!-- 配置创建Spring IoC容器的监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>