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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="fileDownload.action" method="post"> <input type="submit" value="Download"></input> </form> </body> </html>
package com.oa.action; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import com.opensymphony.xwork2.ActionSupport; /** * * @author: zhao * @time: 2016年5月5日 * * @description:Struts2文件下载 */ @SuppressWarnings("all") public class FileDownloadAction extends ActionSupport{ private static final long serialVersionUID = 1L; private InputStream inputStream; private String filename; @Override public String execute() throws Exception { File file=new File("E:\\imooc.txt"); filename=file.getName(); try { inputStream=new FileInputStream(file); System.out.println(inputStream.available()); } catch (Exception e) { e.printStackTrace(); } return SUCCESS; } public InputStream getInputStream() { return inputStream; } public void setInputStream(InputStream inputStream) { this.inputStream = inputStream; } public String getFilename() { return filename; } public void setFilename(String filename) { this.filename = filename; } }
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="default" namespace="/" extends="struts-default"> <action name="fileDownload" class="com.oa.action.FileDownloadAction"> <result type="stream"> <param name="inputName">inputStream</param> <param name="contentDisposition">attachment;filename="${filename}"</param> <param name="contentType">application/octet-stream</param> <param name="bufferSize">1024</param> </result> </action> </package> </struts>
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原文地址：http://www.cnblogs.com/zhao307/p/5463390.html
