web.xml
1.配置监听器:加载Spring的配置文件
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
2.配置前端控制器:加载SpringMvc的配置文件
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
3.配置过滤器:解决post请求的中文参数乱码问题
<filter>
<filter-name>EncodingFilter</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>
</filter>
<filter-mapping>
<filter-name>EncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
applicationContext-mvc.xml
1.静态资源放行
<mvc:default-servlet-handler />
2.扫描包路径:上下文组件扫描
<context:component-scan base-package="cn.itsource.controller"></context:component-scan>
3.开启Spring对Mvc的支持：能够使用@RequestMapping
<mvc:annotation-driven></mvc:annotation-driven>
4.视图解析器：统一处理【webmvc】
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"></property><!-- 前缀 -->
<property name="suffix" value=".jsp"></property><!-- 后缀 -->
</bean>
拦截器
<mvc:interceptors>
<!-- 配置登录拦截器 -->
<mvc:interceptor>
<!-- 拦截的路径
/**：代表拦截所有路径
/system/**:以system开头的所有的路径都会拦截
-->
<mvc:mapping path="/system/**"/>
<!-- 放行登录的路径 exclude:排除-->
<mvc:exclude-mapping path="/system/login"/>
<!-- 全限定名 -->
<bean class="cn.itsource.interceptor.LoginInterceptor"></bean>
</mvc:interceptor>
</mvc:interceptors>
applicationContext.xml
<!-- 1.加载属性配置文件：如果属性文件中没有前缀，必须加上system-properties-mode="NEVER" -->
<context:property-placeholder location="classpath:jdbc.properties" />
<!-- 2.将连接池对象交给Spring去管理 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
<!-- 3.将SqlSessionFactory交给Spring去管理 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="typeAliasesPackage" value="cn.itsource.domain,cn.itsource.query"></property>
<property name="mapperLocations" value="classpath:cn/itsource/mapper/*Mapper.xml"></property>
</bean>
<!-- 4.将Mapper接口交给Spring去管理 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 指定mapper接口的包路径 -->
<property name="basePackage" value="cn.itsource.mapper"></property>
</bean>
<!-- 5.扫描包路径 -->
<context:component-scan base-package="cn.itsource.service"></context:component-scan>
