作业:登录操作

原创 2018-11-22 23:23:35 491
摘要:Login.php<?php namespace app\admin\controller; use think\Controller; use app\admin\model\UserModel; use think\facade\View; use think\facade\Request; use think\facade\S

Login.php

<?php
namespace app\admin\controller;
use think\Controller;
use app\admin\model\UserModel;
use think\facade\View;
use think\facade\Request;
use think\facade\Session;
class Login extends Controller
{
    public function login()
    {
       return $this->view->fetch();
    }
    
    //登录处理操作
   public function doLogin(){
   		//获取前端拿来的数据
   		$data=Request::param();
   		$username=$data['username'];
   		//从数据库取出数据
   		$user=UserModel::where('username',$username)->find();
   		if($user!=true){
   			$info=['res'=>0,'msg'=>'用户名不存在'];
   		}elseif($data['password']!=$user['password']){
   			$info=['res'=>0,'msg'=>'密码输入不正确'];
   			
   		}else{
   			$info=['res'=>1,'msg'=>'登陆成功'];
   			Session::set('username',$user['username']);
   		}
   		return $info;
   		
   }
	//退出操作
	public function loginOut(){
		Session::delete('username');
		$this->redirect('login');
	}
  
}
?>

login.html

{include file="/public/head"}
<body class="login-bg">
    
    <div class="login layui-anim layui-anim-up">
        <div class="message">PHP中文网后台管理系统登录</div>
        <div id="darkbannerwrap"></div>
        
        <form method="post" class="layui-form" >
            <input name="username" placeholder="用户名"  type="text" id="username" lay-verify="required" class="layui-input" >
            <hr class="hr15">
            <input name="password" lay-verify="required" placeholder="密码" id="password"  type="password" class="layui-input">
            <hr class="hr15">
            <input value="登录" lay-submit lay-filter="login" style="width:100%;" type="submit">
            <hr class="hr20" >
        </form>
    </div>

    <script>
        $(function  () {
            layui.use('form', function(){
              var form = layui.form;
              // layer.msg('玩命卖萌中', function(){
              //   //关闭后的操作
              //   });
              //监听提交
              form.on('submit(login)', function(data){
              	
                // alert(888)
                $.post('{:url(\'doLogin\')}',{
                	'username':$('#username').val(),
                	'password':$('#password').val()
                },function(data){
                	if(data.res==1){
	                	layer.msg(data.msg,function(){
	                    location.href='{:url(\'Index/index\')}'
                });
                	}
                	layer.msg(data.msg,function(){
	                    
                });
                })

                return false;
              });
            });
        })

        
    </script>

</body>
</html>


建立common.php 主要目的就是进行对登录进行验证,验证地方有admin.php/User/index  , admin.php/Index/index

<?php
namespace app\admin\controller;
use think\Controller;
use think\facade\View;
use think\facade\Session;

class Common extends Controller{
	public function __construct(){
		parent::__construct();
		if(!Session::has('username')){
			$this->error('你还没登录,请返回登录','Login/login');
		}
	}
}

?>

Index.php  Index 继承common控制器

<?php
namespace app\admin\controller;
use think\Controller;
use app\admin\controller\Common;
use think\facade\View;


class Index extends Common
{
    public function index()
    {
       return $this->view->fetch();
    }
    
    public function welcome(){
    	return $this->view->fetch();
    }

  
}

User.php  user 同样继承common 类

<?php
namespace app\admin\controller;
use think\Controller;
use think\facade\View;
use app\admin\model\UserModel;
use think\facade\Request;
use app\admin\controller\Common;
class User extends Common
{
    public function index()
    {
    	 //$user = new UserModel();
    	 //按id进行排序,并且每一页设置八条数据
    	 //$users=$user->order('id','desc')->paginate(8);
    	 //将数据赋值给模板
    	 $users=UserModel::order('id','desc')->paginate(5);
    	 $this->assign('users',$users);
    	 //$this->view->users=$users;
       return $this->view->fetch();
    }


批改老师:天蓬老师批改时间:2018-11-23 09:03:57
老师总结:通过公共控制器,添加共享成员,这是开发的一个基本技巧,不错,你掌握了

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