jsp文件下载

jsp文件下载 采用文件流输出的方式 <[email=[ft=#0000ff,,]%@page]%@page[/email] language="java" import="java.net.*" pageEncoding="gb2312"%> <% response.setContentType("application/x-download"); //设置为下载application/x-download String filenamedownload = "E:/a/b/c.xxx"; //即将下载的文件在服务器上的绝对路径 String filenamedisplay ="abc";//下载文件时显示的文件保存名称 filenamedisplay = URLEncoder.encode(filenamedisplay,"UTF-8"); //中文编码转换 response.addHeader("Content-Disposition","attachment;filename=" + filenamedisplay); try { java.io.OutputStream os = response.getOutputStream(); java.io.FileInputStream fis = new java.io.FileInputStream(filenamedownload); 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 ) { } %> 2.采用RequestDispatcher的方式 <[email=[ft=#0000ff,,]%@page]%@page[/email] language="java" import="java.net.*" pageEncoding="gb2312"%> <% response.setContentType("application/x-download"); //设置为下载application/x-download String filenamedownload = "/a/b/c.xxx; //即将下载的文件的相对路径 String filenamedisplay = "abc"; //下载文件时显示的文件保存名称 filenamedisplay = URLEncoder.encode(filenamedisplay,"UTF-8"); //中文编码转换 response.addHeader("Content-Disposition","attachment;filename=" + filenamedisplay); try { RequestDispatcher dispatcher = application.getRequestDispatcher(filenamedownload); if(dispatcher != null) { dispatcher.forward(request,response); } response.flushBuffer(); } catch(Exception e) { e.printStackTrace(); } finally { } %>