docker-compose: Problème de communication entre un microservice et BDD mysql

Bonjour,

J'essaye de lancer docker-compose.yml qui contient un MicroService et une BDD mysql.
J'ai un problème de communication entre le microservice et BDD
NB: j'ai utilise docker sous Windows avec WSL.
 Merci pour votre aide.

========Erreur===========
cinema-service_1  | 2020-05-06 16:11:54.096  INFO 1 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
db_1              | 2020-05-06T16:11:54.729925Z 9 [Note] Access denied for user 'root'@'172.28.0.3' (using password: NO)
cinema-service_1  | 2020-05-06 16:11:55.770 ERROR 1 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.
cinema-service_1  |
cinema-service_1  | java.sql.SQLException: Access denied for user 'root'@'172.28.0.3' (using password: NO)
cinema-service_1  |     at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.19.jar!/:8.0.19]
===================================

===========docker-compose.yml============
version: '3.3'
services:
  db:
    image: mysql:5.7
    restart: always
    environment:
      MYSQL_DATABASE: 'cinema'
      # So you don't have to use root, but you can if you like
      #MYSQL_USER: 'cinema_user'
      # You can use whatever password you like
      #MYSQL_PASSWORD: 'cinema_root'
      # Password for root access
      MYSQL_ROOT_PASSWORD: 'rootroot'
    ports:
      # <Port exposed> : < MySQL Port running inside container>
      - 3306:3306
    expose:
      # Opensport 3306 on the container
      - 3306
      # Where our data will be persisted
    volumes:
      - db-volume:/var/lib/mysql
      
  cinema-service:
    image: yzirari/microservice-docker-cinema:0.0.1-SNAPSHOT
    environment:
      MYSQL_DATABASE: 'cinema'
    links:
      - db
    depends_on:
      - db

volumes:
  db-volume: {}
=======================