在web.xml中添加以下内容就可以了:
<!-- put 数据格式转换 -->
<filter>
<filter-name>httpPut</filter-name>
<filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>httpPut</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>