400 bad request on admin-ajax.php only using wp_enqueue_scripts action hook

我认为这里唯一缺少的是您需要将 add_action('wp_ajax_nopriv_ajaxlogin','ajax_login'); 移到 ajax_login_init 之外.

该代码注册了您的Ajax处理程序,但是当您仅在 wp_enqueue_scripts 上运行它时,已经太迟了,并且 wp_ajax_nopriv _ 挂钩已经运行.

所以,您尝试过类似的事情吗?

 函数ajax_login_init(){
 if(！is_user_logged_in()||！is_page('page-test')){
    返回;
  }

  wp_register_script('ajax-login-script',get_stylesheet_directory_uri().'/js/ajax-login-script.js',array('jquery'));
  wp_enqueue_script('ajax-login-script');
  wp_localize_script('ajax-login-script','ajax_login_object',array('ajaxurl'=＆gt; admin_url('admin-ajax.php'),'redirecturl'=＆gt;'REDIRECT_URL_HERE','loadingmessage'=＆gt; __ ("正在发送用户信息,请稍候...")))；
}

add_action('wp_enqueue_scripts','ajax_login_init');

add_action('wp_ajax_nopriv_ajaxlogin','ajax_login');

函数ajax_login(){
//nonce-field在页面上创建
  check_ajax_referer('ajax-login-nonce','security');
//码
  死();
}
 

编辑:

现在,很显然,您只想在该特定页面上加载JavaScript.这意味着您需要将is_page()放在 ajax_login_init()中.我已经相应地更新了代码.

现在,为什么您的解决方案不起作用?

is_page()检查意味着您的功能文件仅在该特定页面上加载. ajax_login_init()被调用,您的脚本进入队列.到目前为止一切顺利.

现在,您的脚本将进行ajax调用.如评论中所述,ajax调用不知道您当前所在的页面.该文件位于 wp-admin/admin-ajax.php 上是有原因的.没有 WP_Query ,因此is_page()在ajax请求期间不起作用.

由于不起作用,因此 sw18_page_specific_functions()在ajax上下文中将不会执行任何操作.这意味着您的功能文件尚未加载,并且ajax处理程序不存在.

这就是为什么您需要始终包含该功能文件并在 ajax_login_init()中移动is_page()进行检查的原因.

因此,直接运行include_once dirname(__ FILE__).而不是 sw18_page_specific_functions(){…} .'/includes/my-page-test-functions.php'; .没有任何 add_action('parse_query')调用.

I think the only thing missing here is that you need to move add_action('wp_ajax_nopriv_ajaxlogin','ajax_login'); outside ajax_login_init.

That code registers your Ajax handler, but when you only run it on wp_enqueue_scripts, it's already too late and wp_ajax_nopriv_ hooks are already run.

So, have you tried something like this:

function ajax_login_init(){
  if ( ! is_user_logged_in() || ! is_page( 'page-test' ) ) {
    return;
  }

  wp_register_script('ajax-login-script',get_stylesheet_directory_uri().'/js/ajax-login-script.js',array('jquery'));
  wp_enqueue_script('ajax-login-script');
  wp_localize_script('ajax-login-script','ajax_login_object',array('ajaxurl' => admin_url('admin-ajax.php'),'redirecturl' => 'REDIRECT_URL_HERE','loadingmessage' => __('Sending user info, please wait...')));
}

add_action( 'wp_enqueue_scripts','ajax_login_init' );

add_action( 'wp_ajax_nopriv_ajaxlogin','ajax_login' );

function ajax_login(){
  //nonce-field is created on page
  check_ajax_referer('ajax-login-nonce','security');
  //CODE
  die();
}

Edit:

Now it's more clear that you only want to load the JavaScript on that particular page. This means you need to put your is_page() inside ajax_login_init(). I've updated the code accordingly.

Now, why didn't your solution work?

The is_page() check meant that your functions file was only loaded on that specific page. ajax_login_init() gets called and your scripts enqueued. So far so good.

Now your script makes the ajax call. As mentioned in the comments, ajax calls are not aware of the current page you're on. There's a reason the file sits at wp-admin/admin-ajax.php. There's no WP_Query and thus is_page() does not work during an ajax request.

Since that does not work, sw18_page_specific_functions() won't do anything in an ajax context. This means your functions file is not loaded and your ajax handler does not exist.

That's why you need to always include that functions file and move that is_page() check inside ajax_login_init().

So instead of sw18_page_specific_functions() { … } just run include_once dirname(__FILE__).'/includes/my-page-test-functions.php'; directly. Without any add_action( 'parse_query' ) call.

请记住将"操作"功能名称附加到wp_ajax_标记上.

 function fetchorderrows() { // Want to run this func on ajax submit
  // Do awesome things here all day long
}

add_action('wp_ajax_fetchorderrows', 'fetchorderrows', 0);
 

Remember to have the 'action' function name appended to the wp_ajax_ tag.

function fetchorderrows() { // Want to run this func on ajax submit
  // Do awesome things here all day long
}

add_action('wp_ajax_fetchorderrows', 'fetchorderrows', 0);

just write die; at the end like below...