/*** 登录*/
var login = function(){var validate1 = false;var validate2 = false;var $userName=$('input[name="userName"]'),$password=$('input[name="password"]'),$jurisdiction,$rememberMe;function init(){if($userName.val()!="")validate1 = true;if($password.val()!="")validate2 = true;$userName.blur(function(){if($(this).val()=='')validate1 = false;elsevalidate1 = true;})$password.blur(function(){if($(this).val()=='')validate2 = false;elsevalidate2 = true;})var username = getCookieValue("user");  var password = getCookieValue("password");var jurisdiction = getCookieValue("jurisdiction");if (username !='' && password !='' ) {  $userName.val(username);  $password.val(password);  $jurisdiction.val(jurisdiction)$rememberMe.attr("checked", true);  }else  $rememberMe.attr("checked", false);  }/* 登录 */function logining() {if (!validate1 || !validate2 ) {return false;}$jurisdiction = $('#jurisdiction input');// 记住账号$rememberMe = $('input[name="rememberMe"]');if($rememberMe.attr("checked") == 'checked'){setCookie('user', $userName.val(), 60 * 60 * 60, '/');//set 获取用户名和密码 传给cookie  setCookie('password', $password.val(), 60 * 60 * 60, '/'); setCookie('jurisdiction', $jurisdiction.val(), 60 * 60 * 60, '/'); }//  alert($userName.val()+','+$password.val()+','+$jurisdiction.val()+'.');$.ajax({type : 'post',url : "loginServlet.do?command=login",data : {userName:$userName.val(),password:$password.val(),jurisdiction:$jurisdiction.val()
//    rememberMe:$rememberMe.val()},success : function(result) {
//    alert('result='+result)if(result != 0){ swal({title: "登录成功!",text: "页面跳转中...",timer: 1000,showConfirmButton: false,type:"success"});setTimeout(function(){ redirect(result) },"2000");}else{swal({title: "登录失败!",text: "请检查您的账号信息.",timer: 1000,showConfirmButton: false,type:"info"});}},error : function() {swal({title: "服务器异常!",text: "请稍后登录.",timer: 1000,showConfirmButton: false,type:"error"});}});}// 登陆成功，重定向function redirect(result){if(result == 1)location.href="student.html";if(result == 2)location.href="teacher.html";if(result == 3)location.href="admin.html";}//hours为空字符串时,cookie的生存期至浏览器会话结束。//hours为数字0时,建立的是一个失效的cookie,//这个cookie会覆盖已经建立过的同名、同path的cookie（如果这个cookie存在）。   function setCookie(name,value,hours,path){   var name = escape(name);   var value = escape(value);   var expires = new Date();   expires.setTime(expires.getTime() + hours*3600000);   path = path == "" ? "" : ";path=" + path;   _expires = (typeof hours) == "string" ? "" : ";expires=" + expires.toUTCString();   document.cookie = name + "=" + value + _expires + path;   }   //cookie名获取值function getCookieValue(name){   var name = escape(name);   //读cookie属性，这将返回文档的所有cookie   var allcookies = document.cookie;          //查找名为name的cookie的开始位置   name += "=";   var pos = allcookies.indexOf(name);       //如果找到了具有该名字的cookie，那么提取并使用它的值   if (pos != -1){    //如果pos值为-1则说明搜索"version="失败   var start = pos + name.length;   //cookie值开始的位置   var end = allcookies.indexOf(";",start); //从cookie值开始的位置起搜索第一个";"的位置,即cookie值结尾的位置   if (end == -1) end = allcookies.length; //如果end值为-1说明cookie列表里只有一个cookie   var value = allcookies.substring(start,end);  //提取cookie的值   return unescape(value);       //对它解码         }      else return "";    //搜索失败，返回空字符串   }  return {init:function(){init();},logining:function(){logining();}}
}()login.init(); // js文件在body下面引入就可以了