<?php $form = ActiveForm::begin([ 
  'action' => ['save'], //提交地址(*可省略*) 
  'method'=>'post',  //提交方法(*可省略默认POST*) 
  'id' => 'form-save', //设置ID属性 
  'options' => [ 
    'class' => 'form-horizontal', //设置class属性 
  ], 
  'enableAjaxValidation' => true, 
  'validationUrl' => 'validate-view', 
]); ?> 
 
<?php echo $form->field($model,'company_name', ['inputOptions' => ['placeholder'=>'请输入商家名称','class' => 'form-control'], 'template'=>'<label for="inputCompanyName" class="col-sm-1 control-label"><span class="text-red">*</span> 商家名称</label><div class="col-md-8">{input}</div><label class="col-sm-3" for="inputError">{error}</label>'])->textInput()?> 
 
<?=Html::submitButton('保存',['class'=>'btn btn-primary']); ?> 
 
<?php ActiveForm::end(); ?> 

public function actionValidateView() 
{ 
  $model = new model(); 
  $request = \Yii::$app->getRequest(); 
  if ($request->isPost && $model->load($request->post())) { 
    \Yii::$app->response->format = Response::FORMAT_JSON; 
    return ActiveForm::validate($model); 
  } 
} 

public function actionSave() 
{ 
  \Yii::$app->response->format = Response::FORMAT_JSON; 
  $params = Yii::$app->request->post(); 
  $model = $this->findModel($params[id]); 
 
  if (Yii::$app->request->isPost && $model->load($params)) { 
    return ['success' => $model->save()]; 
  } 
  else{ 
    return ['code'=>'error']; 
  } 
} 

$(function(){ 
$(document).on('beforeSubmit', 'form#form-save', function () { 
    var form = $(this); 
    //返回错误的表单信息 
    if (form.find('.has-error').length) 
    { 
      return false; 
    } 
    //表单提交 
    $.ajax({ 
      url  : form.attr('action'), 
      type  : 'post', 
      data  : form.serialize(), 
      success: function (response){ 
        if(response.success){ 
          alert('保存成功'); 
          window.location.reload(); 
        } 
      }, 
      error : function (){ 
        alert('系统错误'); 
        return false; 
      } 
    }); 
    return false; 
  }); 
});