struts2做下载时老给图片文件和txt文件直接在浏览器打开了.超级郁闷啊解决思路

struts2做下载时老给图片文件和txt文件直接在浏览器打开了..超级郁闷啊.

Java code

    public InputStream getInputStream(){        return ServletActionContext.getServletContext().getResourceAsStream("/upload/20032008126.jpg");    }

XML code

<action name="download" class="com.struts.action.DownloadAction">    <result name="success" type="stream">        <param name="contentType">image/jpeg</param>    <param name="contentDisposition">filename="20032008126.jpg"</param>    <param name="inputName">inputStream</param>        </result>    </action>