SpringMVC回顾

SpringMvc执行原理：

DispatcherServlet 接受请求交给  HandlerMapping

HandlerMapping处理映射器 通过url找到对应的controller接口返回给DispatcherServlet

DispatcherServlet吧对应的接口交给HandlerAdapter处理适配器

HandlerAdapter执行contrller请求 通过model返回DispatcherServlet

springMVC

M model 模型（service dao）

V view 视图  （jsp html）

C controller 控制层

搭建ssm项目步骤：

pom.xml

<build>
  <resources>
    <resource>
      <directory>src/main/java</directory>
      <includes>
        <include>**/*.properties</include>
        <include>**/*.xml</include>
      </includes>
      <filtering>false</filtering>
    </resource>
    <resource>
      <directory>src/main/resources</directory>
      <includes>
        <include>**/*.properties</include>
        <include>**/*.xml</include>
      </includes>
      <filtering>false</filtering>
    </resource>
  </resources>
</build>

web.xml

配置DispatchServlet

<!-- 配置MVC -->
<servlet>
    <servlet-name>springDispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--绑定spring的配置文件-->
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <!--启动级别-->
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>springDispatcherServlet</servlet-name>
    <url-pattern>*.action</url-pattern>
</servlet-mapping>

<!--sessiom-->
<session-config>
  <session-timeout>15</session-timeout>
</session-config>

<!-- 配置SPRING -->
<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>

spring-mvc.xml

<!--1.注解驱动-->
<mvc:annotation-driven/>
<!-- 2.静态资源过滤-->
<mvc:default-servlet-handler/>
<!--3.扫描包 controller-->
<context:component-scan base-package="com.moto.controller"/>

<!-- 注册自定义拦截器 -->
<mvc:interceptors>
<mvc:interceptor>
<mvc:mapping path="/**"/>
<mvc:exclude-mapping path="/public/**"/>
<bean class="com.moto.util.interceptor.LoginInterceptor"/>
</mvc:interceptor>
<mvc:interceptor>
<mvc:mapping path="/**"/>
<bean class="com.moto.util.interceptor.InterfaceInterceptor"/>
</mvc:interceptor>
</mvc:interceptors>
<!--4.试图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>

<!--文件上传-->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 设定默认编码 -->
<property name="defaultEncoding" value="UTF-8" />
<!-- 设定文件上传的最大值5MB，5*1024*1024 -->
<property name="maxUploadSize" value="5242880" />
<property name="maxInMemorySize" value="4096" />
</bean>

applicationContext.xml

<context:annotation-config/>
<context:component-scan base-package="com.moto" />
<context:component-scan base-package="ztweb.common.entitys"/>
<context:component-scan base-package="ztweb.web.monitorcmd.bpo"/>

<!-- 配置文件 -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <!-- 数据库\cache配置文件 -->
            <value>classpath:conn.properties</value>
            <value>classpath:wxmemcached.properties</value>
            <value>classpath:db_mysql.properties</value>
        </list>
    </property>
    <property name="fileEncoding" value="utf-8"/>
</bean>

<import resource="classpath:spring-dao.xml"/>
<import resource="classpath:spring-service.xml"/>
<import resource="classpath:spring-memcached.xml"/>