簡單文件下載

1. <%
2.     String filename = request.getParameter("filename");
3.     String pathBuffer=request.getRealPath("//");
4.     String filepath = pathBuffer+"//filesFloder//"+request.getParameter("filepath");
6.     int i = 0;
8.     response.setContentType("application/x-download");
9.     response.setHeader("Content-Disposition","attachment;filename=/""+java.net.URLEncoder.encode(filename,"UTF-8")+"/"");
10.     response.setCharacterEncoding("ISO-8859-1");
11.     java.io.FileInputStream fileInputStream=null;
12.     try{
13.             fileInputStream = new java.io.FileInputStream(filepath+filename);
14.     }catch(Exception e){
15.     }
17.     while(fileInputStream!=null && (i= fileInputStream.read()) != -1){
18.             out.write(i);
19.     }
20.     out.flush();
21. %>