HiddenHttpMethodFilter：HiddenHttpMethodFilter必須作用於dispatcher前

	<filter>    
		  <filter-name>HiddenHttpMethodFilter</filter-name>    
		  <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>    
	</filter>    
	<filter-mapping>    
		  <filter-name>HiddenHttpMethodFilter</filter-name>    
		  <servlet-name>spring</servlet-name>    
	</filter-mapping>  
	<servlet>  
		<servlet-name>spring</servlet-name>  
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
		<init-param>  
			<param-name>contextConfigLocation</param-name>  
			<param-value>classpath:dispatcher.xml</param-value>  
		</init-param>  
	</servlet>  
	<servlet-mapping>  
		<servlet-name>spring</servlet-name>  
		<url-pattern>*.html</url-pattern>  
	</servlet-mapping>

<form action="..." method="post">  
        <input type="hidden" name="_method" value="put" />  
        ......  
</form>

HttpPutFormContentFilter：

<filter>  
    <filter-name>httpPutFormcontentFilter</filter-name>  
    <filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class>  
</filter>  
<filter-mapping>  
    <filter-name>httpPutFormContentFilter</filter-name>  
    <url-pattern>/*</url-pattern>  
</filter-mapping>

<form action="" method="put" enctype="application/x-www-form-urlencoded">  
......  
</form>

web app 接收put的配置方式