SpringMVC中web.xml的常用配置文件

<!--  文件上传与下载过滤器
必须放在HiddenHttpMethodFilter过滤器之前
-->
<filter>
<filter-name>multipartFilter</filter-name>
<filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>multipartFilter</filter-name>
<url-pattern>/</url-pattern>
</filter-mapping>

<!--
请求method支持 put 和 delete 必须添加该过滤器
作用：可以过滤所有请求，并可以分为四种
使用该过滤器需要在前端页面加隐藏表单域
<input type="hidden" name="_method" value="请求方式（put/delete）">
post会寻找_method中的请求式是不是put 或者 delete，如果不是 则默认post请求
-->
<filter>
<filter-name>hiddenHttpFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>hiddenHttpFilter</filter-name>
<servlet-name>mvc</servlet-name>
</filter-mapping>

<!-- 过滤器解决乱码问题 -->
<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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 配置当前servletmvc的映射 -->
<servlet>
<servlet-name>mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>