struts上传文件限制大小

配置文件中配上:

<action name="fileupload" class="Action.FileUploadAction" method="uploadFile">
            <result name="success">
                /upload_success.jsp
            </result>
            <result name="error">
                /upload_error.jsp
            </result>
            <result name="input">/fileUpload.jsp</result> 
            <interceptor-ref name="fileUpload">
                <param name="maximumSize">20971520</param> 
               
            </interceptor-ref> 
            <interceptor-ref name="defaultStack"></interceptor-ref> 

        </action>

和这句:

<constant name="struts.multipart.maxSize" value="20971520"/>

 

上面就实现了上传文件限制20M大小了