java代码：
@RequestMapping(value = "/download")
@ResponseBody
public void download(HttpServletRequest request,HttpServletResponse response) throws FileNotFoundException {
//获得服务器端文件保存路径
String realPath = request.getSession().getServletContext().getRealPath("/");
String path = realPath+"文件.txt";
//下载
try {
// path是指欲下载的文件的路径。
File file = new File(path);
// 获得文件名。
String filename = file.getName();
// 获得文件的后缀名。
String ext = filename.substring(filename.lastIndexOf(".") + 1).toUpperCase();
// 以流的情势下载文件。
InputStream fis = new BufferedInputStream(new FileInputStream(path));
byte[] buffer = new byte[fis.available()];
fis.read(buffer);
fis.close();
// 清空response
response.reset();
// 设置response的Header
response.addHeader("Content-Disposition","attachment;filename=" + new String(filename.getBytes("gb2312"),"ISO8859⑴"));
response.addHeader("Content-Length","" + file.length());
OutputStream toClient = new BufferedOutputStream(response.getOutputStream());
response.setContentType("application/octet-stream");
toClient.write(buffer);
toClient.flush();
toClient.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
要求方法：
window.location.href = encodeURI("forecast/download");@H_502_13@
@H_502_13@
