yii2的常规安装,使用composer很简单;
与之前对yii1的了解,刚接触的yii2变化之一是命名空间的增加,还有就是有些代码的格式有些变化;

细节笔记:

yii2开发版本基础程序是有注册登陆功能的,字段验证方面较yii1有所进步,可以直接验证某些字段在数据库中是否存在,验证规则如下:

 1 public function rules()
 2     {
 3         return [
 4             ['username', 'filter', 'filter' => 'trim'],
 5             ['username', 'required'],
 6             ['username', 'unique', 'targetClass' => 'commonmodelsUser', 'message' => 'This username has already been taken.'],//直接判断用户名在数据库中是否存在
 7             ['username', 'string', 'min' => 2, 'max' => 255],
 8 
 9             ['email', 'filter', 'filter' => 'trim'],
10             ['email', 'required'],
11             ['email', 'email'],
12             ['email', 'unique', 'targetClass' => 'commonmodelsUser', 'message' => 'This email address has already been taken.'],//直接判断邮箱在数据库中是否存在
13 
14             ['password', 'required'],
15             ['password', 'string', 'min' => 6],
16         ];
17     }

  2. 表单生成,格式有所变化。代码如下:

 1 <div class="user-register">
 2     <?php $form = ActiveForm::begin([
 3         'id' => 'form-register',
 4         'enableAjaxValidation'=>true,//是否使用ajax验证
 5         'validateOnSubmit'=>false]//yii1时虽然使用ajax验证但提交时则不是ajax验证,yii2提交时仍是ajax验证,开启此项代表提交不验证
 6     ); ?>
 7         <?= $form->field($model, 'user_login')->textInput() ?>
 8         <?= $form->field($model, 'user_pass')->passwordInput() ?>
 9         <?= $form->field($model, 'user_nicename') ?>
10         <?= $form->field($model, 'user_email') ?>
11         <?= $form->field($model, 'verifyCode')->widget(Captcha::className(), ['template' => '<div class="row"><div class="col-lg-2">{input}</div><div class="col-lg-2">{image}</div></div>',]) ?>
12         <div class="form-group">
13             <?= Html::submitButton('Submit', ['class' => 'btn btn-primary']) ?>
14         </div>
15     <?php ActiveForm::end(); ?>
16 </div><!-- user-register -->

  3.yii2的身份验证使用了新的机制,但是没搞懂怎么弄得,我想覆盖都不知道怎么覆盖,密码的加密方式也没搞懂,

  4.yii2带了邮箱类,可在main.php的components项中添加配置,代码如下:

//配置代码
'mailer' => [ 'class' => 'yiiswiftmailerMailer', 'transport' => [ 'class' => 'Swift_SmtpTransport', 'host' => 'smtp.163.com', 'username' => '15618380091@163.com', 'password' => '*******', 'port' => '25', 'encryption' => 'tls', ], 'messageConfig'=>[ 'charset'=>'UTF-8', 'from'=>['15618380091@163.com'=>'admin'] ], ],

//controller控制器中 代码: <?php $mail= Yii::$app->mailer->compose();

$mail->setTo('1401619705@qq.com');
$mail->setSubject("邮件测试"); $mail->setTextBody('zheshisha '); $mail->setHtmlBody("问我我我我我");
if($mail->send()) echo "success"; else echo "failse"; die();
?>

  5.yii2中mail的配置useFileTransport为true,只生成邮件,并未发送,应该为false,另外配置文件params.php中supportEmail应设置为邮箱用户名,设置正确的话,重置密码应该就能用了;