String id = request.getParameter("downLoadFileId");

String fileName = request.getParameter("fileName");

String path = "C:\\upload\\"+id+"\\"+fileName;(存放文件的路径)

response.setHeader("Content-Disposition",  "attachment;filename="+fileName);

response.setHeader("Connection",  "close");

response.setHeader("Content-Type",  "application/octet-stream");

try{

OutputStream os = response.getOutputStream(); //不加此行将只能下载文本文件.下载jpg等就会出现打不开的现象.

FileInputStream fis = new FileInputStream(path);

byte[] b = new byte[1024];

int i = 0;

while ( (i = fis.read(b)) > 0 )

{

os.write(b, 0, i);

}

fis.close();

os.flush();

os.close();

}

catch ( Exception e )

{

System.out.println ( "IOException." + e );

}

posted on 2006-07-26 15:25 Crespo 阅读(339) 评论(0)  编辑  收藏 所属分类: Java web