applicationContext.xml文件的具体讲解

以我做的一个项目为例，对applicationContext.xml文件做简单的介绍：

<!-- 文件的开头（一般为自动生成）-->

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

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-2.0.xsd">

<!-- 建立数据源 -->

<bean id="dataSource"

class="org.apache.commons.dbcp.BasicDataSource">



<!-- 数据库驱动 -->

<property name="driverClassName"

value="com.microsoft.sqlserver.jdbc.SQLServerDriver">

</property>

（mysql的驱动只需改变value的值为：“com.mysql.jdbc.Driver”）



<!-- 数据库配置 -->

<property name="url"

value="jdbc:sqlserver://localhost:1433;databasename=our">

</property>

（mysql的配置只需改变value的值为:“jdbc:mysql://localhost:3306/our”,其中也可对编码进行设置。

如：“jdbc:mysql://localhost:3306/our?useUnicode=true&characterEncoding=utf-8”）

<property name="username" value="sa"></property>

<property name="password" value="123"></property>

</bean>



<!-- 定义Hibernate的SessionFactory -->

<bean id="sessionFactory"

class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<!--定义SessionFactory必须注入DataSource -->

<property name="dataSource">

<ref bean="dataSource" />

</property>



<!-- 定义Hibernate的SessionFactory。例如：方言和是否显示sql -->

<property name="hibernateProperties">

<props>

<prop key="hibernate.dialect">

org.hibernate.dialect.SQLServerDialect

</prop>

<prop key="show_sql">true</prop>

</props>

</property>



<!-- 配置映射文件 -->

<property name="mappingResources">

<list>

<value>org/bookstore/model/Book.hbm.xml</value>

<value>org/bookstore/model/User.hbm.xml</value>

<value>org/bookstore/model/Orders.hbm.xml</value>

<value>org/bookstore/model/Orderitem.hbm.xml</value>

<value>org/bookstore/model/Catalog.hbm.xml</value>

<value>org/bookstore/model/Files.hbm.xml</value>

</list>

</property>

</bean>



<!-- 所有DAO全部注入 -->

<bean id="userDAO" class="org.bookstore.dao.impl.UserDAO">

<property name="sessionFactory" ref="sessionFactory"></property>

</bean>

<bean id="catalogDAO" class="org.bookstore.dao.impl.CatalogDAO">

<property name="sessionFactory" ref="sessionFactory"></property>

</bean>

<bean id="bookDAO" class="org.bookstore.dao.impl.BookDAO">

<property name="sessionFactory" ref="sessionFactory"></property>

</bean>

<bean id="orderDAO" class="org.bookstore.dao.impl.OrderDAO">

<property name="sessionFactory" ref="sessionFactory"></property>

</bean>

<!-- <bean id="imageDao" class="org.bookstore.dao.impl.ImageDao">

<property name="sessionFactory" ref="sessionFactory"></property>

</bean> -->





<!-- 注入Service-->

<bean id="userService"

class="org.bookstore.service.impl.UserService">

<property name="userDAO">

<ref bean="userDAO" />

</property>

</bean>

<bean id="catalogService"

class="org.bookstore.service.impl.CatalogService">

<property name="catalogDAO">

<ref bean="catalogDAO" />

</property>

</bean>

<bean id="bookService"

class="org.bookstore.service.impl.BookService">

<property name="bookDAO">

<ref bean="bookDAO" />

</property>

</bean>

<bean id="orderService" class="org.bookstore.service.impl.OrderService">

<property name="orderDAO">

<ref bean="orderDAO" />

</property>

</bean>



<!-- 注入Action -->

<bean id="userAction" class="org.bookstore.action.UserAction">

<property name="userService">

<ref bean="userService" />

</property>

</bean>

<bean id="bookAction"

class="org.bookstore.action.BookAction">

<property name="catalogService">

<ref bean="catalogService" />

</property>

<property name="bookService">

<ref bean="bookService" />

</property>

</bean>

<bean id="shoppingAction"

class="org.bookstore.action.ShoppingAction">

<property name="bookService">

<ref bean="bookService" />

</property>

<property name="orderService">

<ref bean="orderService"/>

</property>

</bean>



</beans>