struts2.1文件下载

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package action;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class downLoadFile extends ActionSupport {private String name;public String getName() {return name;}public void setName(String name) {this.name = name;}public InputStream getInputStream() throws Exception {return ServletActionContext.getServletContext().getResourceAsStream("/upload/" + name);}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubreturn SUCCESS;}}

struts.xml中文件需要配置如下：

<struts> <constant name="struts.custom.i18n.resources" value="message"></constant> <constant name="struts.i18n.encoding" value="gbk"></constant> <constant name="struts.multipart.saveDir" value="D:/"></constant> <package name="Struts2" extends="struts-default"><action name="download"   class="com.test.action.DownLoadFile">   <result name="success" type="stream">    <param name="contentType">     contentType    </param>    <param name="contentDispostion">     filename="Struts2.ppt"    </param>    <param name="inputName">inputStream</param>   </result>  </action> </package></struts>