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>class</span> IndexController <span>extends</span><span> HomeBaseController {
    </span><span>//</span><span>登录</span><span>public</span><span>function</span><span> index() {
        </span><span>$id</span>=I("get.id"<span>);      
        </span><span>$users_model</span>=M("Users"<span>);        
        </span><span>$user</span>=<span>$users_model</span>->where(<span>array</span>("id"=><span>$id</span>))-><span>find();      
        </span><span>if</span>(<span>empty</span>(<span>$user</span><span>)){
            </span><span>$this</span>->error("查无此人！"<span>);
        }
        </span><span>$this</span>->assign(<span>$user</span><span>);
        </span><span>$this</span>->display(":index"<span>);
    }
    </span><span>function</span><span> is_login(){
        </span><span>if</span><span>(sp_is_user_login()){
            </span><span><span>$this</span>-><strong>ajax</strong>Return(<span>array</span>("status"=>1,"user"=></span><span><span>sp_get_current_user()));</span>        }</span><span>else</span><span>{
            </span><span>$this</span>-><strong>ajax</strong>Return(<span>array</span>("status"=>0,"info"=>"此用户未登录！"<span>));
        }
    }<br>。。。。。。</span>

2   登陆前后主页导航栏的 登陆和未登录 的显示

<span><span>div </span><span>id</span><span>="main-menu-user"</span><span>></span><span><!--</span><span>还未登陆</span><span>--></span><span><span>div  </span><span>class</span><span>='userout </span><span>user' </span><span>></span><span><span>ul </span><span>class</span><span>="nav navbar-nav  navbar-right"</span><span>></span><span><span>li</span><span>></span><span><span>a </span><span>href</span><span>="{:u('user/register/index')}"</span><span> data-toggle</span><span>="dropdown"</span><span>></span>注册<span></span><span>a</span><span>></span><span></span><span>li</span><span>></span><span></span><span>ul</span><span>></span><span><span>ul </span><span>class</span><span>="nav navbar-nav  navbar-right"</span><span>></span><span><span>li</span><span>></span><span><span>a </span><span>href</span><span>="{:u('user/login/index')}"</span><span>  data-toggle</span><span>="dropdown"</span><span>></span>登陆<span></span><span>a</span><span>></span><span></span><span>li</span><span>></span><span></span><span>ul</span><span>></span><span><span>ul </span><span>class</span><span>="nav navbar-nav  navbar-right"</span><span> style</span><span>="margin-top:10px"</span><span>></span><span><span>li </span><span>></span><span><span>img </span><span>src</span><span>="__TMPL__/Public/img/headicon.png"</span><span> class</span><span>="headicon"</span><span>/></span><span></span><span>li</span><span>></span><span></span><span>ul</span><span>></span><span></span><span>div</span><span>></span><span><!--</span><span>已经登陆</span><span>--></span><span><span>div </span><span>class</span><span>="userlogin user"</span><span>></span><span><span>ul </span><span>class</span><span>="nav navbar-nav  navbar-right"</span><span>></span><span><span>li</span><span>></span><span><span>a </span><span>href</span><span>="{:u('user/index/logout')}"</span><span> data-toggle</span><span>="dropdown"</span><span>></span>退出<span></span><span>a</span><span>></span><span></span><span>li</span><span>></span><span></span><span>ul</span><span>></span><span><span>ul </span><span>class</span><span>="nav navbar-nav  navbar-right"</span><span>></span><span><span>li</span><span>></span><span><span>a </span><span>href</span><span>="{:u('user/center/index')}"</span><span>  data-toggle</span><span>="dropdown"</span><span> class</span><span>="user-nicename"</span><span>></span><span>a</span><span>></span><span></span><span>li</span><span>></span><span></span><span>ul</span><span>></span><span><span>ul </span><span>class</span><span>="nav navbar-nav  navbar-right"</span><span> style</span><span>="margin-top:10px"</span><span>></span><span><span>li </span><span>></span><span><span>img </span><span>src</span><span>=""</span><span> class</span><span>="headicon"</span><span>/></span><span></span><span>li</span><span>></span><span></span><span>ul</span><span>></span><span></span><span>div</span><span>></span><span></span><span>div</span><span>></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> $(<span>function<span> () {<span>/*<span>控制导航栏显示登陆还是个人中心<span>*/<span>  $.post("{:U('user/index/is_login')}",{},<span>function<span>(data){
      <span>if(data.status==1<span>){
          <span>if<span>(data.user.avatar){
<span>              $(<span>"#main-menu-user ul li .headicong").attr("src",data.user.avatar.indexOf("http")==0?data.user.avatar:"__UPLOAD__avatar/"+<span>data.user.avatar);
            }
      $("#main-menu-user ul li .user-nicename").text(data.user.user_nicename!=""?<span><span>data.user.user_nicename:data.user.user_login);      $("#main-menu-user .userlogin"<span>).show();
      $("#main-menu-user .userout"<span>).hide();               
      }
      <span>if(data.status==0<span>){
         $("#main-menu-user .userout"<span>).show();
         $("#main-menu-user .userlogin"<span>).hide();
      }
});  });
</script>

以上就介绍了登陆前后导航栏处理 2015-12-12，包括了ajax方面的内容，希望对PHP教程有兴趣的朋友有所帮助。