public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String file = request.getParameter("file");
//處理請求
//讀取要下載的文件
File f = new File("Book1.xls");
String path=request.getSession().getServletContext().getRealPath("");
path =path.replace("\\", "/")+"/"+file;
f = new File(path);
if(f.exists()){
FileInputStream fis = new FileInputStream(f);
String filename=URLEncoder.encode(f.getName(),"utf-8"); //解決中文文件名下載後亂碼的問題
byte[] b = new byte[fis.available()];
fis.read(b);
response.setCharacterEncoding("utf-8");
response.setHeader("Content-Disposition","attachment; filename="+filename+"");
//獲取響應報文輸出流對象
ServletOutputStream out =response.getOutputStream();
//輸出
out.write(b);
out.flush();
out.close();
}
}
Java:讀取下載文檔
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