开发Spring MVC应用程序(4-3)

l         在springapp-xml中需要定义DAO使用的DataSource和ProductManagerDao接口的引用

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

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"

 "http://www.springframework.org/dtd/spring-beans.dtd">

<!--

  - Application context definition for "springapp" DispatcherServlet.

  -->

<beans>

    <!--  Controller for the initial "Hello" page -->

    <bean id="springappController" class="web.SpringappController">

        <property name="productManager">

            <ref bean="prodMan"/>

        </property>

    </bean>

    <!--  Validator and Form Controller for the "Price Increase" page -->

    <bean id="priceIncreaseValidator" class="bus.PriceIncreaseValidator"/>

    <bean id="priceIncreaseForm" class="web.PriceIncreaseFormController">

        <property name="sessionForm"><value>true</value></property>

        <property name="commandName"><value>priceIncrease</value></property>

        <property name="commandClass"><value>bus.PriceIncrease</value></property>

        <property name="validator"><ref bean="priceIncreaseValidator"/></property>

        <property name="formView"><value>priceincrease</value></property>

        <property name="successView"><value>hello.htm</value></property>

        <property name="productManager">

            <ref bean="prodMan"/>

        </property>

    </bean>

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

      <property name="driverClassName"><value>com.mysql.jdbc.Driver</value></property>

      <property name="url">

        <value>jdbc:mysql://localhost/test</value>

      </property>

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

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

    </bean>

    <bean id="prodManDao" class="db.ProductManagerDaoJdbc">

        <property name="dataSource">

            <ref bean="dataSource"/>

        </property>

    </bean>

    <bean id="prodMan" class="bus.ProductManager">

        <property name="productManagerDao">

            <ref bean="prodManDao"/>

        </property>

<!--

        <property name="products">

            <list>

                <ref bean="product1"/>

                <ref bean="product2"/>

                <ref bean="product3"/>

            </list>

        </property>

-->

    </bean>

<!--

    <bean id="product1" class="bus.Product">

        <property name="description"><value>Lamp</value></property>

        <property name="price"><value>5.75</value></property>

    </bean>

    <bean id="product2" class="bus.Product">

        <property name="description"><value>Table</value></property>

        <property name="price"><value>75.25</value></property>

    </bean>

    <bean id="product3" class="bus.Product">

        <property name="description"><value>Chair</value></property>

        <property name="price"><value>22.79</value></property>

    </bean>

-->

    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">

        <property name="basename"><value>messages</value></property>

    </bean>

    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">

        <property name="mappings">

            <props>

                <prop key="/hello.htm">springappController</prop>

                <prop key="/priceincrease.htm">priceIncreaseForm</prop>

            </props>

        </property>

    </bean>

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="viewClass">

           <value>org.springframework.web.servlet.view.JstlView</value>

        </property>

        <property name="prefix"><value>/WEB-INF/jsp/</value></property>

        <property name="suffix"><value>.jsp</value></property>

    </bean>

</beans>

l         重新部署程序，运行程序，做增长价格的操作，数据库中数据会相应变化