Magento 2 css js 404

首先排除掉权限问题。然后执行 php bin/magento setup:static-content:deploy 看静态文件是否生成了。如果已经生成了，那么很可能是 rewrite 问题。本次遇到的问题是，http://www.example.com/static/version1511952472/frontend/Magento/luma/en_US/mage/loader.js 是 404 但是 http://www.example.com/static/frontend/Magento/luma/en_US/mage/loader.js 可以访问。可以看出，下面的路径比上面的少了 version1511952472 ，该文件夹实际上是不存在的，是通过 rewrite 来实现转向的。首先后台是可以控制是否使用 static files versioning 的

方法一

设置 Sign Static Files 为 No 这样就不存在转向问题了。但是治标不治本。这时候你很可能无法进入后台了，所以得直接改数据库记录。

1	insert into core_config_data(path, value) VALUES ('dev/static/sign', 0);

然后执行命令：

1	php bin/magento cache:clean

方法二

Apache 下，按照一般情况，在 pub/static/.htacess 中是设置好了的：

<IfModule mod_rewrite.c>
    RewriteEngine On

    # Remove signature of the static files that is used to overcome the browser cache
    RewriteRule ^version.+?/(.+)$ $1 [L]

    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-l

    RewriteRule .* ../static.php?resource=$0 [L]
</IfModule>

Nginx 设置，以下仅供参考：

location /static/ {
    # Uncomment the following line in production mode
    # expires max;

    # Remove signature of the static files that is used to overcome the browser cache
    location ~ ^/static/version {
        rewrite ^/static/(version\d*/)?(.*)$ /static/$2 last;
    }

    location ~* \.(icojpgjpegpnggifsvgjscssswfeotttfotfwoffwoff2)$ {
        add_header Cache-Control "public";
        add_header X-Frame-Options "SAMEORIGIN";
        expires +1y;

        if (!-f $request_filename) {
            rewrite ^/static/(version\d*/)?(.*)$ /static.php?resource=$2 last;
        }
    }
    location ~* \.(zipgzgzipbz2csvxml)$ {
        add_header Cache-Control "no-store";
        add_header X-Frame-Options "SAMEORIGIN";
        expires    off;

        if (!-f $request_filename) {
           rewrite ^/static/(version\d*/)?(.*)$ /static.php?resource=$2 last;
        }
    }
    if (!-f $request_filename) {
        rewrite ^/static/(version\d*/)?(.*)$ /static.php?resource=$2 last;
    }
    add_header X-Frame-Options "SAMEORIGIN";
}

参考文档

Static Content is not loading after upgrade Magento 2: CSS & JS not found (404) [duplicate]