登陆前后导航栏处理 2015-12-12
注意：添加灰色背景处，关于ajax传值，和js的判断
1 登陆后控制器处理：判断是否登陆并传递用户信息
<span style="color: #0000ff;">class</span> IndexController <span style="color: #0000ff;">extends</span><span style="color: #000000;"> HomeBaseController { </span><span style="color: #008000;">//</span><span style="color: #008000;">登录</span> <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">function</span><span style="color: #000000;"> index() { </span><span style="color: #800080;">$id</span>=I("get.id"<span style="color: #000000;">); </span><span style="color: #800080;">$users_model</span>=M("Users"<span style="color: #000000;">); </span><span style="color: #800080;">$user</span>=<span style="color: #800080;">$users_model</span>->where(<span style="color: #0000ff;">array</span>("id"=><span style="color: #800080;">$id</span>))-><span style="color: #000000;">find(); </span><span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">empty</span>(<span style="color: #800080;">$user</span><span style="color: #000000;">)){ </span><span style="color: #800080;">$this</span>->error("查无此人！"<span style="color: #000000;">); } </span><span style="color: #800080;">$this</span>->assign(<span style="color: #800080;">$user</span><span style="color: #000000;">); </span><span style="color: #800080;">$this</span>->display(":index"<span style="color: #000000;">); } </span><span style="color: #0000ff;">function</span><span style="color: #000000;"> is_login(){ </span><span style="color: #0000ff;">if</span><span style="color: #000000;">(sp_is_user_login()){ </span><span style="background-color: #c0c0c0;"><span style="color: #800080;">$this</span>->ajaxReturn(<span style="color: #0000ff;">array</span>("status"=>1,"user"=></span><span style="color: #000000;"><span style="background-color: #c0c0c0;">sp_get_current_user()));</span> }</span><span style="color: #0000ff;">else</span><span style="color: #000000;">{ </span><span style="color: #800080;">$this</span>->ajaxReturn(<span style="color: #0000ff;">array</span>("status"=>0,"info"=>"此用户未登录！"<span style="color: #000000;">)); } }<br>。。。。。。</span>2 登陆前后主页导航栏的 登陆和未登录 的显示
<span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">id</span><span style="color: #0000ff;">="main-menu-user"</span><span style="color: #0000ff;">></span> <span style="color: #008000;"><!--</span><span style="color: #008000;">还未登陆</span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">='userout </span><span style="color: #ff0000;">user' </span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">ul </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="nav navbar-nav navbar-right"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">="{:u('user/register/index')}"</span><span style="color: #ff0000;"> data-toggle</span><span style="color: #0000ff;">="dropdown"</span><span style="color: #0000ff;">></span>注册<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">ul</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">ul </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="nav navbar-nav navbar-right"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">="{:u('user/login/index')}"</span><span style="color: #ff0000;"> data-toggle</span><span style="color: #0000ff;">="dropdown"</span><span style="color: #0000ff;">></span>登陆<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">ul</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">ul </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="nav navbar-nav navbar-right"</span><span style="color: #ff0000;"> style</span><span style="color: #0000ff;">="margin-top:10px"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">li </span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">img </span><span style="color: #ff0000;">src</span><span style="color: #0000ff;">="__TMPL__/Public/img/headicon.png"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="headicon"</span><span style="color: #0000ff;">/></span> <span style="color: #0000ff;"></span><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">ul</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span> <span style="color: #008000;"><!--</span><span style="color: #008000;">已经登陆</span><span style="color: #008000;">--></span> <span style="color: #0000ff;"><span style="color: #800000;">div </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="userlogin user"</span> <span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">ul </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="nav navbar-nav navbar-right"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">="{:u('user/index/logout')}"</span><span style="color: #ff0000;"> data-toggle</span><span style="color: #0000ff;">="dropdown"</span><span style="color: #0000ff;">></span>退出<span style="color: #0000ff;"></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">ul</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">ul </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="nav navbar-nav navbar-right"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">a </span><span style="color: #ff0000;">href</span><span style="color: #0000ff;">="{:u('user/center/index')}"</span><span style="color: #ff0000;"> data-toggle</span><span style="color: #0000ff;">="dropdown"</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="user-nicename"</span><span style="color: #0000ff;">></span><span style="color: #800000;">a</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">ul</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">ul </span><span style="color: #ff0000;">class</span><span style="color: #0000ff;">="nav navbar-nav navbar-right"</span><span style="color: #ff0000;"> style</span><span style="color: #0000ff;">="margin-top:10px"</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">li </span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"><span style="color: #800000;">img </span><span style="color: #ff0000;">src</span><span style="color: #0000ff;">=""</span><span style="color: #ff0000;"> class</span><span style="color: #0000ff;">="headicon"</span><span style="color: #0000ff;">/></span> <span style="color: #0000ff;"></span><span style="color: #800000;">li</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">ul</span><span style="color: #0000ff;">></span> <span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span><span style="color: #0000ff;"></span><span style="color: #800000;">div</span><span style="color: #0000ff;">></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>3 登陆后，js对box的操作
<script><br /><span style="color: #000000;"> $(<span style="color: #0000ff;">function<span style="color: #000000;"> () {<span style="color: #008000;">/*<span style="color: #008000;">控制导航栏显示登陆还是个人中心<span style="color: #008000;">*/<span style="color: #000000;"> $.post("{:U('user/index/is_login')}",{},<span style="color: #0000ff;">function<span style="color: #000000;">(data){ <span style="color: #0000ff;">if(data.status==1<span style="color: #000000;">){ <span style="color: #0000ff;">if<span style="color: #000000;">(data.user.avatar){<span style="background-color: #c0c0c0;"> $(<span style="background-color: #c0c0c0;">"#main-menu-user ul li .headicong").attr("src",data.user.avatar.indexOf("http")==0?data.user.avatar:"__UPLOAD__avatar/"+<span style="color: #000000;">data.user.avatar); } $("#main-menu-user ul li .user-nicename").text(data.user.user_nicename!=""?<span style="color: #000000;"><span style="background-color: #c0c0c0;">data.user.user_nicename:data.user.user_login); $("#main-menu-user .userlogin"<span style="color: #000000;">).show(); $("#main-menu-user .userout"<span style="color: #000000;">).hide(); } <span style="color: #0000ff;">if(data.status==0<span style="color: #000000;">){ $("#main-menu-user .userout"<span style="color: #000000;">).show(); $("#main-menu-user .userlogin"<span style="color: #000000;">).hide(); }}); });</script>
The difference between xdata and data
How much is one Bitcoin in RMB?
What are the data analysis methods?
Digital camera driver
The role of index.html
Solution to the problem that setting the Chinese interface of vscode does not take effect
Quick shutdown shortcut key
How to open python after it is installed
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
