YII2 数据库配置&&数据模型分配视图

1.打开 config/db.php

<pre name="code" class="html"><?php

return [
    "class" => "yiidbConnection",
    "dsn" => "mysql:host=localhost;dbname=yii2",
    "username" => "root",
    "password" => "",
    "charset" => "utf8",
    "tablePrefix"=>"t_"
];

<?php
/* 数据模型 */
namespace appmodels;
use yiidbActiveRecord;
class Admin extends ActiveRecord
{
    public static function tableName()
    {
        return "{{%admin}}";
    }
}

<?php
namespace appcontrollers;
use yiiaseController;
use appmodelsAdmin; //引入Model类

class IndexController extends Controller
{
    public function actionIndex()
    {
        $model = new Admin;
        $data = $model->find()->one(); //查询一条数据

        return $this->render("index",array("row"=>$data)); //数据分配模板
    }
}