garden_server/application/base/controller/Login.php

<?php
namespace app\base\controller;

use think\Controller;
use think\Session;
use app\user\model\Admin;

class Login extends Controller
{
	
	private $adminModel;
	
	protected function _initialize(){
		
		$this->adminModel = new Admin();
	}
	
	public function login(){
		$this->view->engine->layout(false);
		
		if ($this->request->isPost()){
			// 判断验证码
			$username = $this->request->post('username');
			$password = $this->request->post('password');
			// 判断用户名
			if (empty($username)) {
				return $this->error("用户名不能为空", $this->request->baseUrl());				
			}
			
			// 判断密码
			if (empty($password)) {
				return $this->error("密码不能为空", $this->request->baseUrl());				
			}
			
			$res = $this->adminModel->login($username, $password);
			
			if($res){
				Session::set('admin', $res);
				$this->success("登录成功", url('user/index/index'));				
			} else {
				$this->error("用户不存在或密码不正确", $this->request->baseUrl());
			} 
		}
		
		return $this->fetch('login');
	}
	
	public function out(){
		session(null);
		$this->redirect(url('base/login/login'));
	}
	
	public function register(){
		$this->view->engine->layout(false);
		
		if($this->request->isPost()){
			$this->adminModel->register();
		}
		
		return $this->fetch('register');
	}
	
}