如何让页面一打开就远程自动下载文件

在页面或者后台response,直接用文件头加你的文件,文件流写出。

比如在页面这样写,当然,最好在后台写:

<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'test.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
    <%
// 得到文件名字和路径
String filename = "Example.zip";
String filepath = "D:\\";

// 设置响应头和下载保存的文件名
response.setContentType("APPLICATION/OCTET-STREAM");
response.setHeader("Content-Disposition",
"attachment; filename=\"" + filename + "\"");

// 打开指定文件的流信息
java.io.FileInputStream fileInputStream =
new java.io.FileInputStream(filepath + filename);

// 写出流信息
int i;
while ((i=fileInputStream.read()) != -1) {
out.write(i);
}
fileInputStream.close();
out.close();

%>


  </body>
</html>

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