=================application.properties==================
spring.datasource.url=jdbc:mysql://coursed.c2brxsrmnwtb.eu-central-1.rds.amazonaws.com:3306/coursed
spring.datasource.username=root
spring.datasource.password=rootroot1
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect

spring.jpa.show-sql=false
spring.jpa.hibernate.ddl-auto=update
=====================hibernate.cfg.xml====================
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration SYSTEM
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.CharSet">utf8</property>
        <property name="hibernate.connection.characterEncoding">utf8</property>
        <property name="hibernate.connection.useUnicode">true</property>
    </session-factory>
</hibernate-configuration>