javascript - 无法将数据从 View 发布到 Yii2 中的 Controller

Question

我正在研究 Yii2。我有一个带有复选框的 gridview，在单击按钮时我将它重定向到使用 ajax 的 Action Controller 。

 <?= Html::a('Disconnect', ['dco'], ['class' => 'btn btn-success', 'id'=>'dco']) ?>

<?php Pjax::begin(); ?>    
        <?= GridView::widget([
    'dataProvider' => $dataProvider,
    'filterModel' => $searchModel,
    'columns' => [


        ['class' => 'yii\grid\CheckboxColumn', 'checkboxOptions' => function($d) {
            return ['value' => $d['msn']];
        }],


        'ref_no',
        'dept_code:ntext',
        'dept_name:ntext',

        'allowed_units',
        'msn',

        'units_consumed',
        [
            'label' => 'Disconnected',
            'attribute' => 'disconnected',
            'format'=>'raw',
            'contentOptions' => ['style'=>'text-align:center'],
            'value' => function($model){
                return $model->disconnected == 1 ? '<span class="glyphicon glyphicon-ok text-success"></span>' : '<span class="glyphicon glyphicon-remove text-danger"></span>';
            },
            'filter' => Html::activeDropDownList($searchModel, 'disconnected', [''=>'All','1'=>'Yes','0'=>'No'], ['class' => 'form-control']),
        ],

        'diconnected_at',
        'reconnected_at',
        'active_energy_total_m',


        ['class' => 'yii\grid\ActionColumn'],
    ],
]); ?>
<?php Pjax::end(); ?>

JS

<?php

$DCOurl = Url::toRoute(['/hecolog/dco']);

$script = <<< JS
$(document).ready(function () {  



 //DCO 
 $('#dco').on('click',function(e) {


       e.preventDefault();    
 var strValue = "";        
    $('input[name="selection[]"]:checked').each(function() {

    if(strValue!=="")
        {
        strValue = strValue + " , " + this.value;

        }
    else 
       strValue = this.value;     

});       

 $.ajax({
    url: '$DCOurl',
    type: 'POST',
    dataType: 'json',
    data: {data:strValue},         
    success: function(data) {
       alert(data);
    }
 });


 });
});
JS;
$this->registerJs($script, static::POS_END);
?>

但是当我点击断开连接按钮时，它不会重定向到我的 Controller 。在控制台中，它显示 Not Found (#404): Page not found.

更新 1

我已经像下面这样更新了 ajax 调用

$.ajax({
    url: $DCOurl, // removed the inverted commas ''
    type: 'POST',
    dataType: 'json',
    data: {data:strValue},         
    success: function(data) {
       alert(data);
    }
 });

Controller

 public function actionDco()
{
    if(Yii::$app->request->isAjax && Yii::$app->request->post())
    {
        $data = explode(',',$_POST['data']);

        var_dump($data);
        die();
    }
    else{
        $this->redirect('index');
    }




}

按照建议更新代码后，我可以进入我的 Controller ，但仍然无法获取数据

在控制台中我收到错误 Uncaught SyntaxError: Invalid regular expression flags

更新 2

下面是我的 View 代码

<?php

use yii\helpers\Html;
use yii\grid\GridView;
use yii\widgets\Pjax;
use yii\helpers\Url;
use yii\web\JqueryAsset;
/* @var $this yii\web\View */
/* @var $searchModel common\models\HescologSearch */
/* @var $dataProvider yii\data\ActiveDataProvider */

$this->title = 'DCO / RCO';
$this->params['breadcrumbs'][] = $this->title;
?>
<section class="content-header">
<h1>DCO / RCO List</h1>
</section>
<section class="content">
<div class="box">
    <div class="box-body">


<p>

    <?= Html::a('Disconnect', ['dco'], ['class' => 'btn btn-success', 'id'=>'dco']) ?>
    <?= Html::a('Re-Disconnect', ['rco'], ['class' => 'btn btn-info','id'=>'rco']) ?>
</p>

 <?php Pjax::begin(); ?>
        <div class="pre-scrollable">
        <?= GridView::widget([
    'dataProvider' => $dataProvider,
    'filterModel' => $searchModel,
    'columns' => [


        ['class' => 'yii\grid\CheckboxColumn', 'checkboxOptions' => function($d) {
            return ['value' => $d['msn']];
        }],


        'ref_no',
        'dept_code:ntext',
        'dept_name:ntext',

        'allowed_units',
        'msn',

        'units_consumed',
        [
            'label' => 'Disconnected',
            'attribute' => 'disconnected',
            'format'=>'raw',
            'contentOptions' => ['style'=>'text-align:center'],
            'value' => function($model){
                return $model->disconnected == 1 ? '<span class="glyphicon glyphicon-ok text-success"></span>' : '<span class="glyphicon glyphicon-remove text-danger"></span>';
            },
            'filter' => Html::activeDropDownList($searchModel, 'disconnected', [''=>'All','1'=>'Yes','0'=>'No'], ['class' => 'form-control']),
        ],

        'diconnected_at',
        'reconnected_at',
        'active_energy_total_m',


        ['class' => 'yii\grid\ActionColumn'],
    ],
]); ?>
        </div>
<?php Pjax::end(); ?>

    </div>
</div>
</section>
<?php

$DCOurl = Url::toRoute(['/hescolog/dco']);
$RCOurl = Url::toRoute(['/hescolog/rco']);

$script = <<< JS
$(document).ready(function () {      
//DCO 
 $('#dco').on('click',function(e) {


       e.preventDefault();    
 var strValue = "";        
    $('input[name="selection[]"]:checked').each(function() {

    if(strValue!=="")
        {
        strValue = strValue + " , " + this.value;

        }
    else 
       strValue = this.value;     

});



$.ajax({
    url: $DCOurl,
    type: 'POST',
    dataType: 'json',
    data: {data:strValue},         
    success: function(data) {
       alert(data);
    }
 });


 });

 $('#rco').on('click',function(e) {

 e.preventDefault();    
 var strValue = "";        
    $('input[name="selection[]"]:checked').each(function() {

    if(strValue!=="")
        {
        strValue = strValue + " , " + this.value;

        }
    else 
       strValue = this.value;     

  });

  $.ajax({
    url: '$RCOurl',
    type: 'POST',
    dataType: 'json',
    data: {data:strValue},         
    success: function(data) {
       alert(data);
    }
 });
 });

 });    
 JS;
 $this->registerJs($script, static::POS_END);
 ?>

我一定是做错了什么我不理解

任何帮助将不胜感激。

Answer 1

首先 url:'$DCOurl' 是正确的并且url必须是单个或 双引号。所以你有一个未找到的问题:

• 您的项目是在 htdocs 还是 www 后跟 /inventory-web/backend/ 或者还有更多目录？您使用相对 url，因此 url 将用于 ex: localhost/inventory-web/backend/web/...
• ajax 类型 'POST' 应该与 behaviors['verbs']['actions'] 匹配，如果你已经设置的话
• 检查 Controller 文件名、类名和命名空间