每日总结

1. 今天继续学习android的http通过content-dispostion响应头，让浏览器下载文件

public class ServletFive extends HttpServlet {
    
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        resp.setHeader("content-disposition", "attachment;filename=Android.pdf");
        InputStream in = this.getServletContext().getResourceAsStream("/file/android编码规范.pdf");
        byte buffer[] = new byte[1024];
        int len = 0;
        OutputStream out = resp.getOutputStream();
        while((len = in.read(buffer)) > 0)
        {
            out.write(buffer,0,len);
        }
    }
    
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        doGet(req, resp);
    }