springmvc使用DELETE|PUT请求

    <!--DELETE|PUT请求必须通过过滤器的支持才能实现。-->
    <filter>
        <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>

<input type="hidden" name="_method" value="PUT"/>
<button type="submit" class="button"> 保存 </button>