Spring + Spring MVC + Mybatis框架整合相关配置

1    web.xml    配置

        1.配置一个监听器contextloaderlistener，让项目一启动就加载spring容器

              <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>

        2.配置Spring MVC 的前端控制器dispatcherservlet。

              <!-- 需要指定contextConfigLocation内容为Spring MVC配置文件的值。也可以选择不配置，那么需要把servlet-name改名为dispatcherServlet，并在同级目录下建立同名文件dispatcherServlet-servlet.xml。命名规则   当前servlet-name  +“-servlet.xml”-->

    <servlet>
    <servlet-name>springDispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
<param-name>contextConfigLocation</param-name>
<param-value>location</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
<servlet-name>springDispatcherServlet</servlet-name>
<url-pattern>url</url-pattern><!-- 选择拦截哪些url-->

    </servlet-mapping>

   3.配置字符过滤器CharacterEncodingFilter，请求类型过滤器HiddenHttpMethodFilter

            <filter><!--字符过滤器一定要放在其他过滤器前面-->
                <filter-name>CharacterEncodingFilter</filter-name>
                <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
                <init-param>
                    <param-name>encoding</param-name>
                    <param-value>utf-8</param-value>
                </init-param>
                <init-param>
                  <param-name>forceRequestEncoding</param-name>
                  <param-value>true</param-value>
                </init-param>
                <init-param>
                  <param-name>forceResponseEncoding</param-name>
                  <param-value>true</param-value>
                </init-param>
              </filter>
              <filter-mapping>
                <filter-name>CharacterEncodingFilter</filter-name>
                <url-pattern>/*</url-pattern>
              </filter-mapping>

              <filter><!--将页面普通的post请求转为指定的delect或put请求-->
                <filter-name>HiddenHttpMethodFilter</filter-name>
                <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
              </filter>
              <filter-mapping>
                <filter-name>HiddenHttpMethodFilter</filter-name>
                <url-pattern>/</url-pattern>
              </filter-mapping>

            

            <!--这里不多讲，照搬就可以了-->

2.  Spring MVC配置文件  dispatcherServlet-servlet.xml  的配置

                   <!--这个文件主要进行与网站、跳转逻辑相关的配置-->

            1.扫描所以业务逻辑组件   要禁用掉默认的use-default-filters属性设置为false

                    <context:component-scan base-package="com.atguigu" use-default-filters="false">
        <!-- 只扫控制器 -->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
            </context:component-scan>

             2.配置视图扫描器

                <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/views/"></property>
    <property name="suffix" value=".jsp"></property>
        </bean>

             3.<!-- 两个标准配置 -->

        <!-- 将springmvc不能处理的请求交给tomcat -->
        <mvc:default-servlet-handler/>
        <!--  能支持springMVC更高级的一些功能 -->
        <mvc:annotation-driven />

3.Spring 配置文件  applicationContext.xml的配置

        1.加载类路径下的 dbconfig.propertise文件,这是数据库的配置文件 

        <context:property-placeholder location="classpath:dbconfig.propertise"/>

        2.配置扫描器 exclude:排除     这个自动扫描器只不扫描Controller类，其他都扫描

            <context:component-scan base-package="com.atguigu">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

        3.配置数据源,可以使用c3p0     ComboPooledDataSource类

            <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
    </bean>

        4.配置和mybatis的整合，他能帮我们创建sqlSessionFactory

            <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 指定全局配置文件 -->
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
<!-- 指定数据源,引用配置好的bean -->
<property name="dataSource" ref="pooledDataSource"></property>
<!-- 指定端口映射文件位置 -->
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
    </bean>

         5.配置扫描器  ,将mybatis接口的事现加入到ioc容器中

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.atguigu.crud.dao"></property>
    </bean>

          6.事务控制相关

        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="pooledDataSource"></property>
</bean>
<aop:config>
<aop:pointcut expression="execution(* com.atguigu.crud.service..*(..))" id="txPoint"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>
</aop:config>

<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*"/>
<tx:method name="get*" read-only="true"/>
</tx:attributes>
</tx:advice>

<bean id="SqlSession" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactoryBean"></constructor-arg>
<constructor-arg name="executorType" value="BATCH"> </constructor-arg>
</bean>