web.xml配置
在服务器端容器启动之前加载配置文件的顺序:context-param>listener>filter>servlet
//容器配置application上下文的时候加载的文件
//这是spring容器的配置文件
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext*.xml</param-value>
</context-param>
//springmvc在web容器中的启动类
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
//注册Springmvc中DispatcherServlet到web容器中
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
//初始化时使用的参数
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-patten>/</url-patten>
</servlet-mapping>
//解决中文乱码问题
<filter>
<filter-name>SetCharacterEncoding</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-class>UTF-8</param-class>
</init-param>
</filter>
<filter-mapping>
<filter-name>SetCharacterEncoding</filter-name>
<url-patten>/</url-patten>
</filter-mapping>