Spring Boot JDBC microservices cannot connect to MySQL in docker - spring-boot

Question

I have 2 Spring Boot microservices that need to connect to a MySQL service which itself is deployed in Docker. I'm using Docker Compose but for some reason they cannot reach the DB. I have used the service name in the connection string but still no connection.
Here is the docker-compose.yml file:
version: "3.8"
services:
mysqldb:
container_name: mysqldb
image: mysql:8
restart: unless-stopped
env_file: ./.env
environment:
- MYSQL_ROOT_PASSWORD=eryrty45fgd3DE
- MYSQL_DATABASE=bank_db
- MYSQL_USER=java_user
- MYSQL_PASSWORD=dd0953
ports:
- 3307:3306
volumes:
- db:/var/lib/mysql
- ./scripts/schema.sql:/docker-entrypoint-initdb.d/1.sql
accounts-service:
container_name: accounts-service
depends_on:
- mysqldb
build:
context: ./accounts-service
dockerfile: Dockerfile
image: accounts-service:latest
restart: on-failure
env_file: ./.env
ports:
- 8000:8000
environment:
- MYSQLDB_URL=jdbc:mysql://mysqldb:3306/bank_db?useSSL=false
- MYSQLDB_USER=java_user
- MYSQL_PASSWORD=dd0953
- NOTIFY_SERVICE_URL=http://notify-service:8002
volumes:
- servs:/tmp
stdin_open: true
tty: true
transactions-service:
container_name: transactions-service
depends_on:
- mysqldb
- accounts-service
- notify-service
build:
context: ./transaction-service
dockerfile: Dockerfile
image: transactions-service:latest
restart: on-failure
env_file: ./.env
ports:
- 8001:8001
environment:
- MYSQLDB_URL=jdbc:mysql://mysqldb:3306/bank_db?useSSL=false
- MYSQLDB_USER=java_user
- MYSQL_PASSWORD=dd0953
- NOTIFY_SERVICE_URL=http://notify-service:8002
- ACCOUNT_SERVICE_URL=http://accounts-service:8000
volumes:
- servs:/tmp
stdin_open: true
tty: true
notify-service:
container_name: notify-service
build:
context: ./notification-service
dockerfile: Dockerfile
image: notify-service:latest
restart: on-failure
ports:
- 8002:8002
volumes:
- servs:/tmp
stdin_open: true
tty: true
volumes:
db:
servs:
Here is my connection string:
spring.datasource.url:jdbc:mysql://mysqldb:3306/bank_db?useSSL=false
The stacktrace:
Caused by: java.net.ConnectException: Connection refused
accounts-service | at java.base/sun.nio.ch.Net.pollConnect(Native Method) ~[na:na]
accounts-service | at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:672) ~[na:na]
accounts-service | at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(NioSocketImpl.java:542) ~[na:na]
accounts-service | at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:597) ~[na:na]
accounts-service | at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327) ~[na:na]
accounts-service | at java.base/java.net.Socket.connect(Socket.java:633) ~[na:na]
accounts-service | at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:156) ~[mysql-connector-java-8.0.28.jar!/:8.0.28]
accounts-service | at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63) ~[mysql-connector-java-8.0.28.jar!/:8.0.28]
accounts-service | ... 127 common frames omitted