JavaWeb参考资料JavaWeb参考资料.docVIP

JavaWeb参考资料（以书上为主） Servlet产生文档如word、excel、图形等。P 48-49 public class ExcelServlet extends HttpServlet{ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ //指定页面在传输过程中使用的编码方式 response.setHeader(Content-Encoding,gb2312); response.setContentType(application/vnd.ms-excel;charset=gb2312); PrintWriter out = response.getWriter(); out.println(学号\t姓名\t性别\t年龄\t所在系); out.println(95001\t李勇\t男\t20\t信息); out.println(95002\t刘晨\t女\t19\t数学); }} 下载文档。P50 public class FileDownloadServlet extends HttpServlet{ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ response.setContentType(application/jar); // 设置响应头，将响应内容以指定的文件名存储到客户机上 　　response.setHeader(Content-Disposition,attachment;filename=servlet-api.jar); File f = new File(C:\\servlet-api.jar); FileInputStream is = new FileInputStream(f); ServletOutputStream os = response.getOutputStream(); byte[] bytearray = new byte[1024]; int bytesread = 0; while( (bytesread = is.read(bytearray) ) != -1 ){ os.write(bytearray, 0, bytesread); } 　　　os.flush(); } } 3、Cookie的设置与读取。P 95-96 向客户Cookie对象： public class SendCookieServlet extends HttpServlet{ public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException{ Cookie userCookie = new Cookie(username, hacker); userCookie. setMaxAge(60*60*24*7); response.addCookie(userCookie); response.setContentType(text/html); PrintWriter out=response.getWriter(); out.println(htmltitleadd cookies/title); out.println(bodyh2A cookie has been sent to browser/h2/body); out.println(/html); }} 从客户端读取Cookie： public class GetCookieServlet extends HttpServlet{ public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException{ String cooki