springmvc+mybatis+velocity配置

首先说明，在java的web框架中，最难的一个步骤，就是设置配置文件，配置文件复杂繁多，而且特别容易配置错误，经过不懈努力，一步步配置好了。
1、文件目录

本工程是eclipse+maven的webapp工程
2、webx.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
    <display-name></display-name>
    <welcome-file-list>
        <welcome-file>index/list</welcome-file>
    </welcome-file-list>



    <!-- Spring的log4j监听器 -->
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>

    <!-- 核心控制器 -->
    <servlet>
        <servlet-name>book</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- spring配置文件 -->
    <context-param>  
        <param-name>contextConfigLocation</param-name>  
        <param-value>classpath:applicationContext.xml</param-value>  
    </context-param> 

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet-mapping>
        <servlet-name>book</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

3、spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

    <!-- 自动扫描包 -->
    <mvc:annotation-driven />
    <context:component-scan base-package="click.youhua.*" />

    <!-- velocity模板引擎 -->
    <bean id="velocityConfigurer" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">  
    <property name="resourceLoaderPath" value="WEB-INF/view"/>  
    <property name="velocityProperties">  
        <props>  
            <prop key="input.encoding">utf-8</prop>  
            <prop key="output.encoding">utf-8</prop>  
        </props>  
    </property>  
    </bean>  
    <bean id="velocityViewResolver" class="org.springframework.web.servlet.view.velocity.VelocityViewResolver">  
    <property name="suffix" value=".vm"/>  
    <property name="contentType" value="text/html;charset=utf-8"/>  
    </bean> 

    <!-- 拦截器 --> 
    <mvc:interceptors>  
        <!-- 使用bean定义一个Interceptor，直接定义在mvc:interceptors根下面的Interceptor将拦截所有的请求 -->  
        <mvc:interceptor>  
        <mvc:mapping path="/index.do/**"/>  
        <!-- 定义在mvc:interceptor下面的表示是对特定的请求才进行拦截的 -->  
        <bean class="click.youhua.interceptor.LoginInterceptor"/>  
        </mvc:interceptor>  
    </mvc:interceptors> 


</beans>

4、applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">


    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://121.40.55.231:3306/youhua" />
        <property name="username" value="root" />
        <property name="password" value="123456" />
    </bean>

    <!-- 配置事务管理器 -->  
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- configLocation：用于指定Mybatis的配置文件位置 -->
    </bean>

    <context:annotation-config />


    <tx:annotation-driven />

    <!-- 自动扫描和注册Mapper接口 basePackage是用来指定Mapper接口文件所在的基包， 在这个基包或其所有子包下面的Mapper接口都将被搜索到。 多个基包之间可以使用逗号或者分号进行分隔 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value=" click.youhua.mapper " />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

</beans>

配置完成后，再加上对于各种model controller的设置，就可以正常访问到velocity的页面。

4、task/list.vm

#foreach($data in $list)
                <tr>
                  <td>$data.id</td>
                  <td>$data.article_name</td>
                  <td>ipsum</td>
                  <td>dolor</td>
                  <td>sit</td>
                </tr>
                #end 

5、结果

其中任务名称就是循环出来的结果。