可以，但WP并不能提供一种很好的方式，所以必须使用输出缓冲。

类似于：

// before template is included
add_action(\'template_redirect\', function(){

  // you can do some checks here
  // perhaps you need this only a certain page?
  if(!is_home())
    return;

  // capture output from here on...
  ob_start(function($html){

    // this function runs after the capture ends,
    // you can replace your tags here 
    $html = strtr($html, array(
      \'<render:jsp>\'  => \'<!--\',
      \'</render:jsp>\' => \'-->\',
    ));

    return $html;

  });

});