用的 localStorage 存储和获取登录信息

//存储

var username = $("input[name='username']").val();
var password = $("input[name='password']").val();
var validateCode = $("input[name='validateCode']").val();
var rememberMe = $("input[name='rememberme']").is(':checked');
$.ajax({
type: "post",
url:"/login",
data: {
    "username": username,
    "password": password,
    "rememberMe": rememberMe
},
success: function (r) {
    if (r.code == web_status.SUCCESS) {
        //跳转到首页
        location.href = ctx + 'index';

        //账号密码存到本地
        localStorage.setItem("username",username)
        localStorage.setItem("password",password)
        localStorage.setItem("rememberMe",rememberMe)
    }
    else {
        $.modal.closeLoading();
        $('.imgcode').click();
        $(".code").val("");
        $.modal.msg(r.msg);
    }
}
})

//获取

var username=localStorage.getItem("username")
var password=localStorage.getItem("password")
var rememberMe=localStorage.getItem("rememberMe")
if(rememberMe == 'true'){//记住密码
   $("input[name='username']").val(username)
   $("input[name='password']").val(password)
  $("#rememberme").prop("checked",true)
}else{
   $("input[name='username']").val('')
   $("input[name='password']").val('')
   $("#rememberme").prop("checked",false)
}