How to Fix: Spring Boot - Error creating bean with name 'dataSource' defined in class path resource

Method 1: Enable JPA and configure dataSource

1. Step 1: Add the following configuration to your application.properties file:

spring.datasource.url=jdbc:mysql://localhost:3306/mydb

spring.datasource.username=myuser

spring.datasource.password=mypassword

Step 2:

1. Step 2: Add the following configuration to your application.properties file (if you're using Spring Boot 2.1 or later):

spring.jpa.hibernate.ddl-auto=update

Step 3:

1. Step 3: Make sure you have the Spring Data JPA dependency in your pom.xml file (if you're using Maven) or build.gradle file (if you're using Gradle):

dependencies { implementation 'org.springframework.boot:spring-boot-starter-data-jpa' }

🎯 Final Words

By following these steps, you should be able to resolve the 'Error creating bean with name 'dataSource' defined in class path resource' error and get your Spring Boot application up and running.