搭建struts2 + spring + hibernate（二）：XML、代码篇

1. 配置struts.xml至src目录下

2. 编写相关BEAN，ACTION，SERVICE，DAO接口及其实现类：

部分代码如下：

con = new Configuration().configure();

sessionFactory = con.buildSessionFactory();

Session session = sessionFactory.openSession();

// 开始事物

Transaction tx = session.beginTransaction();

Criteria criteria = session.createCriteria(User.class);

3. 编写hibernate.cfg.xml至src目录下：

<?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>

<!-- Database connection settings -->

<property name="connection.driver_class">com.mysql.jdbc.Driver</property>

<property name="connection.url">jdbc:mysql://localhost/test</property>

<property name="connection.username">root</property>

<property name="connection.password">******</property>

<!-- JDBC connection pool (use the built-in) -->

<property name="connection.pool_size">1</property>

<!-- SQL dialect -->

<property name="dialect">org.hibernate.dialect.MySQLDialect</property>

<!-- Enable Hibernate's automatic session context management -->

<property name="current_session_context_class">thread</property>

<!-- Disable the second-level cache

<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>

-->

<!-- Echo all executed SQL to stdout -->

<property name="show_sql">true</property>

<!-- Drop and re-create the database schema on startup -->

<property name="hbm2ddl.auto">update</property>

<mapping resource="com/infoq/bean/User.hbm.xml" />

</session-factory>

</hibernate-configuration>

4. 编写User.hbm.xml至bean包下：

<?xml version="1.0"?>

<!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.infoq.bean">

<class name="User">

<id name="id">

<generator class="identity" />

</id>

<property name="username" column="user_name" type="string"/>

</class>

</hibernate-mapping>

5. 编写applicationContext.xml至WEB-INF目录下。

6.web.xml增加：

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>

/WEB-INF/applicationContext.xml

</param-value>

</context-param>

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>