download.jsp

jsp实现文件上传下载 执行服务器端脚本功能

<%@page language="java" contentType="application/x-msdownload" import="java.io.*,java.net.*" pageEncoding="gb2312"%><%

response.setContentType("application/x-download");
String downloadFile = request.getParameter("downloadFile");


OutputStream output = null;
FileInputStream fis = null;
try
{
output = response.getOutputStream();
fis = new FileInputStream(downloadFile);

byte[] b = new byte[1024];
int i = 0;

while((i = fis.read(b)) > 0)
{
output.write(b, 0, i);
}
output.flush();
}
catch(Exception e)
{
System.out.println("Error!");
e.printStackTrace();
}
finally
{
if(fis != null)
{
fis.close();
fis = null;
}
if(output != null)
{
output.close();
output = null;
}
}
%>