Java – spring boot database error datasource “org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration”

hibernatejavaspringspring-bootspring-mvc

I am using the spring boot, hibernate and the my sql and i am getting the error.

org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name
'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration':
Unsatisfied dependency expressed through constructor parameter 0;
nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'dataSource' defined in class path resource
[org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]:
Bean instantiation via factory method failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method
'dataSource' threw exception; nested exception is
java.lang.IllegalStateException: Cannot load driver class:
com.mysql.jdbc.Driver at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:732)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:197)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1267)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1124)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1089)
~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:859)
~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
~[spring-context-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
~[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780)
[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412)
[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:333)
[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1277)
[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1265)
[spring-boot-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
com.trial.TrialApplication.main(TrialApplication.java:15)
[classes/:na] Caused by:
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'dataSource' defined in class path resource
[org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]:
Bean instantiation via factory method failed; nested exception is
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method
'dataSource' threw exception; nested exception is
java.lang.IllegalStateException: Cannot load driver class:
com.mysql.jdbc.Driver at
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:590)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] … 28 common frames
omitted Caused by:
org.springframework.beans.BeanInstantiationException: Failed to
instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method
'dataSource' threw exception; nested exception is
java.lang.IllegalStateException: Cannot load driver class:
com.mysql.jdbc.Driver at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:582)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] … 41 common frames
omitted Caused by: java.lang.IllegalStateException: Cannot load driver
class: com.mysql.jdbc.Driver at
org.springframework.util.Assert.state(Assert.java:94)
~[spring-core-5.0.9.RELEASE.jar:5.0.9.RELEASE] at
org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:224)
~[spring-boot-autoconfigure-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.initializeDataSourceBuilder(DataSourceProperties.java:176)
~[spring-boot-autoconfigure-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:43)
~[spring-boot-autoconfigure-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari.dataSource(DataSourceConfiguration.java:83)
~[spring-boot-autoconfigure-2.0.5.RELEASE.jar:2.0.5.RELEASE] at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[na:1.8.0_181] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown
Source) ~[na:1.8.0_181] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
~[na:1.8.0_181] at java.lang.reflect.Method.invoke(Unknown Source)
~[na:1.8.0_181] at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
~[spring-beans-5.0.9.RELEASE.jar:5.0.9.RELEASE] … 42 common frames
omitted

pom.xml file

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.bookstore</groupId>
    <artifactId>bookstore</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>bookstore</name>
    <description>Demo project for Spring Boot</description>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>



        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

entity class is

package com.trial.hibernate;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;


@Entity
public class Employee {

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private int id;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPhone() {
        return phone;
    }
    public void setPhone(String phone) {
        this.phone = phone;
    }
    private String name;
    private String phone;

}

properties file is

server.port=8181
spring.thymeleaf.cache=false
# create and drop tables and sequences, loads import.sql
spring.jpa.hibernate.ddl-auto=create
# database settings
spring.datasource.url=jdbc:mysql://localhost:3306/bookstore?useSSL=false
spring.datasource.username=root
spring.datasource.password=oracle
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.jpa.show-sql=true

the github repository link is https://github.com/dishankgoyal/springsBoot

How can i fix this?

Best Answer

I found your project to be running fine at my end, few things you might try to work at your end.

Try changing to spring.datasource.driverClassName=com.mysql.jdbc.Driver
Remove @ComponentScan() from main class and just leave @SpringBootApplication there.

    @SpringBootApplication
    public class TrialApplication{    
        public static void main(String[] args) {
            SpringApplication.run(TrialApplication.class, args);
        }       
    }

Clean your project by project-->rebuild/clean or run command mvn clean install or removing .m2/repository or re-import project or restarting IDE/system might help.

Annotation	Meaning
`@Component`	generic stereotype for any Spring-managed component
`@Repository`	stereotype for persistence layer
`@Service`	stereotype for service layer
`@Controller`	stereotype for presentation layer (spring-mvc)

Best Answer

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