getAttribute和getParameter的区别: request.getAttribute():是request时设置的变量的值,用request.setAttribute("name","您自己的值");来设置值,request.getParameter():提取发送过来的参数如:本网页 登录页面 login.java public void doPost(HttpServletRequest request, HttpServletResponse r
var user = form.name.value; var password = form.password.value; var url = "chkname.php?user="+user+"&password="+password;//以前只知道ajax用于对用户名的检测,原来还可以对密码进行检测. xmlhttp.open("GET",url,true); xmlhttp.onreadystatechange = functi
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <
这里我们选择的方法是cookie的方式去记录 首先我们写将用户名和密码写到cookie的js代码 //保存到cookie function save_cookies(){ if($("#remember").prop("checked")){ var username = $("#username").val(); var password = $("#password").val(); $.cookie("reme