我正在单击锚标记中定义的链接并获取url。我想将url\\u中的此url传递给postid（$\\u POST[\'url\'），它返回我的ID。

到目前为止，我所做的一切都在工作，除了对admin ajax的ajax调用，以传递url来获取ID

步骤1：在widget（）函数中创建小部件

步骤2：单击时调用get\\u prev\\u ajax\\u handler（）函数，并希望使用url\\u to\\u postid（$\\u post[\'url\'）获取该链接的帖子ID；

 function Reco_load_widget() {
    register_widget( \'Reco_Person\' );
 }

 add_action( \'widgets_init\', \'Reco_load_widget\' );

 class Reco_Person extends WP_Widget {
       function __construct() {
          parent::__construct(
            \'wpb_widget_per\', 
             __(\'Reco Personalisation\',\'wpb_widget_per_person\'), 
             array( \'description\' => __( \'Content widget\', \'wpb_widget_per_person\' ), ) 
          );
       }
       public function widget( $args, $instance ) { ?>
           <script>
             jQuery(function(){
                jQuery(\'a\').click(function(){
                    var url = jQuery(this).attr(\'href\');
                    jQuery.ajax({
                    url: \'<?php echo admin_url(\'admin-ajax.php\'); ?>\',
                    method: "POST",
                    contentType: \'application/json\',
                    data: ({
                        action: "get_prev_ajax_handler",
                        url: url
                    }),
                    success: function (response){
                        console.log(response);
                    }
                });
             });

             });
           </script>
       <?php }
       public function get_prev_ajax_handler() {
           return url_to_postid($_POST["url"]);
       }
 }
 add_action(\'wp_ajax_get_prev\', \'get_prev_ajax_handler\'); // add action for logged users
 add_action( \'wp_ajax_nopriv_get_prev\', \'get_prev_ajax_handler\' );

但这个钩子不起作用。我是否使用错误的参数在错误的位置调用了add\\u操作？

<a href="#link" data-post-id="47">Link</a>

var post_id = jQuery(this).attr(\'data-post-id\');

data: ({
     action: "get_prev_ajax_handler",
     url: url,
     post_id: post_id,
}),

add_action(\'wp_ajax_get_prev_ajax_handler\', \'get_prev_ajax_handler\'); 
add_action( \'wp_ajax_nopriv_get_prev_ajax_handler\', \'get_prev_ajax_handler\' );