Windows Docker Compose未连接到Wordpress数据库

我有一个mysql数据库和wp的内容文件夹从我的网站上工作。我的操作系统是Windows10。以下是我在docker-compose.yml文件中使用的当前设置：

version: '3.3'

services:
   db:
     image: mysql:5.7
     volumes:
       - db_data:/var/lib/mysql
     restart: always
     environment:
       MYSQL_ROOT_PASSWORD: somewordpress
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: wordpress

   wordpress:
     depends_on:
       - db
     image: wordpress:latest
     volumes:
      - ./wordpress:/var/www/html
     ports:
       - "8000:80"
     restart: always
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_USER: wordpress
       WORDPRESS_DB_PASSWORD: wordpress
       WORDPRESS_DB_NAME: wordpress
volumes:
    db_data: {}

删除以下行时，数据库将加载

     volumes:
      - ./wordpress:/var/www/html