我想至少是时候尝试一下删除附件页了。

这是我的第一次尝试。。。

add_filter( \'attachment_fields_to_edit\', \'wpse_25144_attachment_fields_to_edit\', 10000, 2 );

function wpse_25144_attachment_fields_to_edit( $form_fields, $post ) {

    $url_type = get_option( \'image_default_link_type\' );

    if( \'post\' == $url_type ) {
        update_option( \'image_default_link_type\', \'file\' );
        $url_type = \'file\';
    }

    $form_fields[\'url\'] = array(
        \'label\'      => __(\'Link URL\'),
        \'input\'      => \'html\',
        \'html\'       => wpse_25144_image_link_input_fields( $post, $url_type ),
        \'helps\'      => __(\'Enter a link URL or click above for presets.\')
    );

    return $form_fields;
}

function wpse_25144_image_link_input_fields($post, $url_type = \'\') {

    $file = wp_get_attachment_url($post->ID);

    if( empty( $url_type ) )
        $url_type = get_user_setting( \'urlbutton\', \'file\' );

    $url = \'\';
    if( $url_type == \'file\' )
        $url = $file;

    return "
    <input type=\'text\' class=\'text urlfield\' name=\'attachments[$post->ID][url]\' value=\'" . esc_attr($url) . "\' /><br />
    <button type=\'button\' class=\'button urlnone\' title=\'\'>" . __(\'None\') . "</button>
    <button type=\'button\' class=\'button urlfile\' title=\'" . esc_attr($file) . "\'>" . __(\'File URL\') . "</button>
";
}

add_filter( \'query_vars\', \'wpse_25144_query_vars\', 10000, 2 );

function wpse_25144_query_vars( $wp_query_vars ) {

    foreach( $wp_query_vars as $i => $qv ) {
        if( in_array( $qv, array( \'attachment\', \'attachment_id\' ) ) )
            unset( $wp_query_vars[$i] );
    }
    return $wp_query_vars;
}

add_filter( \'attachment_link\', \'wpse_25144_attachment_link\', 10000, 2 );

function wpse_25144_attachment_link( $link, $id ) {

    $link = wp_get_attachment_url( $id );
    return $link;
}

add_filter( \'rewrite_rules_array\', \'wpse_25144_rewrite_rules_array\', 10000 );

function wpse_25144_rewrite_rules_array( $rewriteRules ) {

    foreach( $rewriteRules as $pattern => $query_string ) {
        if( false === strpos( $pattern, \'attachment\' ) && false === strpos( $query_string, \'attachment\' ) )
            continue;
        unset( $rewriteRules[$pattern] );
    }

    return $rewriteRules;
}

接受批评。：）

您可以对其父页面的附件执行301重定向，如下所示：

<?php
/*
Plugin Name: Redirect Attachments to Parent (301)
Plugin URI: http://wordpress.stackexchange.com/questions/25144/unwanted-media-library-urls-in-posts
Description: Redirect any attachemnt pages to their parent\'s page with 301 redirection
Author: Ashfame
Version: 0.1
Author URI: http://www.ashfame.com/
*/

add_action( \'template_redirect\', \'attachment_post_type_redirection\' );

function attachment_post_type_redirection() {
    global $wp_query;       
    if ( is_attachment() ) {            
        wp_redirect( get_permalink( $wp_query->post->post_parent ), 301 );
    }       
}

Yoast\'s SEO plugin 在下面有“将附件URL重定向到父帖子URL”permalinks. 我使用此选项来解决问题。这个插件太棒了。

这是一个相关问题的相关答案：Disable attachment pages completely

此方法修改重写规则。

您可以筛选默认重写规则并删除附件的重写规则：

function cleanup_default_rewrite_rules( $rules ) {
    foreach ( $rules as $regex => $query ) {
        if ( strpos( $regex, \'attachment\' ) || strpos( $query, \'attachment\' ) ) {
            unset( $rules[ $regex ] );
        }
    }

    return $rules; 
} 
add_filter( \'rewrite_rules_array\', \'cleanup_default_rewrite_rules\' );  

https://wordpress.stackexchange.com/a/271089/71608