Restful风格，PUT修改功能请求，表单中存在文件报错-HTTP Status 405 - Request method 'POST' not supported

 ???<!-- 配置文件上传解析器 --> ???<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> ?????????<!-- 指定所上传文件的总大小不能超过20M。注意maxUploadSize属性的限制不是针对单个文件，而是所有文件的容量之和 --> ?????????<property name="maxUploadSize" value="20000000"/> ????????<property name="defaultEncoding" value="utf-8"></property> ???</bean> ???<!-- web.xml中引入上面配置,这个很重要!只有在contextConfigLocation配置的文件下的bean才会直接被加载供下面的过滤器调用 --> ???<context-param> ???????<param-name>contextConfigLocation</param-name> ???????<param-value>classpath:spring/root-context.xml</param-value> ???</context-param> ???????<!--form表单中存在文件时,该过滤器可以处理http请求中的文件,被该过滤器过滤后会用post方法提交,form表单需设为enctype="multipart/form-data"--> ???<filter> ???????<filter-name>MultipartFilter</filter-name> ???????<filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class> ???????<init-param> ???????????<param-name>multipartResolverBeanName</param-name> ???????????<!--spring中配置的id为multipartResolver的解析器--> ???????????<param-value>multipartResolver</param-value> ???????</init-param> ???</filter> ???<filter-mapping> ???????<filter-name>MultipartFilter</filter-name> ???????<url-pattern>/*</url-pattern> ???</filter-mapping> ???<!--解析form表单中隐藏的name为_method的input,需放在MultipartFilter之后,才能在对应的put请求方法中找到对应的controller--> ???<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>