Spring Boot JPA repository error - spring

Question

i am try using spring boot with hibernate-mysql for learning
i follow the spring boot youtube tutorial and make some change for jpa hibernate-mysql
When run as "spring boot app", it was working fine.
When run as "maven package" on pom.xml, it was failed on "TESTS"
error:
2015-09-18 10:26:19.599 INFO 8328 --- [ main] demo.DemoApplicationTests : Starting DemoApplicationTests on Noir with PID 8328 (D:\eclipse\project\demo\target\test-classes started by Phane in D:\eclipse\project\demo)
2015-09-18 10:26:19.667 INFO 8328 --- [ main] o.s.w.c.s.GenericWebApplicationContext : Refreshing org.springframework.web.context.support.GenericWebApplicationContext#1d0737c8: startup date [Fri Sep 18 10:26:19 SGT 2015]; root of context hierarchy
2015-09-18 10:26:19.768 WARN 8328 --- [ main] o.s.w.c.s.GenericWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [D:\eclipse\project\demo\target\classes\filmRental\JpaConfig.class]; nested exception is java.lang.annotation.AnnotationFormatError: Invalid default: public abstract java.lang.Class org.springframework.data.jpa.repository.config.EnableJpaRepositories.repositoryBaseClass()
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:303)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:248)
at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:140)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:266)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:230)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:189)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:270)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:230)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:197)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:166)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:306)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:239)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:254)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
this is the java classes:
DemoApplication.java
package demo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Component;
import filmRental.Staff;
import filmRental.StaffRepository;
import filmRental.StaffServiceImpl;
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
#ComponentScan ("filmRental")
#Component
class StaffCommandLineRunner implements CommandLineRunner
{
#Override
public void run(String... arg0) throws Exception
{
for(Staff staff : this.sf.findAll())
{
System.out.println(staff.getStaffID() + " > " + staff.getFirstName());
}
}
#Autowired StaffServiceImpl sf;
}
StaffRestController
package demo;
import java.util.Collection;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import filmRental.Staff;
import filmRental.StaffServiceImpl;
#RestController
#ComponentScan ("filmRental")
public class StaffRestController
{
#RequestMapping ("/staff")
public Collection<Staff> listStaff()
{
return sf.findAll();
}
#Autowired StaffServiceImpl sf;
}
StaffServiceImpl.java
package filmRental;
import java.util.List;
import javax.annotation.Resource;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
#Service
#Transactional
public class StaffServiceImpl
{
// #PersistenceContext
// private EntityManager em;
#Resource
private StaffRepository sf;
public List<Staff> findAll()
{
return sf.findAll();
}
}
StaffRepository.java
package filmRental;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.transaction.annotation.Transactional;
#Transactional
public interface StaffRepository extends JpaRepository<Staff, Byte>{}
Staff.java
package filmRental;
import java.sql.Blob;
import java.sql.Timestamp;
import javax.persistence.*;
#Entity
#Table (name ="Staff")
public class Staff
{
private byte staffID;
private String firstName;
private String lastName;
private byte[] picture;
private String email;
private byte storeID;
private boolean active;
private String userName;
private String password;
private Timestamp lastUpdate;
private Address address;
#Id
#Column (name="staff_id")
public byte getStaffID()
{
return staffID;
}
public void setStaffID(byte staffID)
{
this.staffID = staffID;
}
#Column (name = "first_name")
public String getFirstName()
{
return firstName;
}
public void setFirstName(String firstName)
{
this.firstName = firstName;
}
#Column (name = "last_name")
public String getLastName()
{
return lastName;
}
public void setLastName(String lastName)
{
this.lastName = lastName;
}
#Column (name = "picture", columnDefinition="BLOB")
public byte[] getPicture()
{
return picture;
}
public void setPicture(byte[] picture)
{
this.picture = picture;
}
#Column (name = "email")
public String getEmail()
{
return email;
}
public void setEmail(String email)
{
this.email = email;
}
#Column (name = "store_id")
public byte getStoreID()
{
return storeID;
}
public void setStoreID(byte storeID)
{
this.storeID = storeID;
}
#Column (name = "active")
public boolean getActive()
{
return active;
}
public void setActive(boolean active)
{
this.active = active;
}
#Column (name = "username")
public String getUserName()
{
return userName;
}
public void setUserName(String userName)
{
this.userName = userName;
}
#Column (name = "password")
public String getPassword()
{
return password;
}
public void setPassword(String password)
{
this.password = password;
}
#Column (name = "last_update")
public Timestamp getLastUpdate()
{
return lastUpdate;
}
public void setLastUpdate(Timestamp lastUpdate)
{
this.lastUpdate = lastUpdate;
}
#ManyToOne
#JoinColumn(name="address_id")
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
}
JpaConfig.java
package filmRental;
import java.util.Properties;
import javax.annotation.Resource;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import org.hibernate.ejb.HibernatePersistence;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
#Configuration
#EnableTransactionManagement
#PropertySource("classpath:application.properties")
#EnableJpaRepositories
public class JpaConfig
{
private static final String PROPERTY_NAME_DATABASE_DRIVER = "db.driver";
private static final String PROPERTY_NAME_DATABASE_PASSWORD = "db.password";
private static final String PROPERTY_NAME_DATABASE_URL = "db.url";
private static final String PROPERTY_NAME_DATABASE_USERNAME = "db.username";
private static final String PROPERTY_NAME_HIBERNATE_DIALECT = "hibernate.dialect";
private static final String PROPERTY_NAME_HIBERNATE_SHOW_SQL = "hibernate.show_sql";
private static final String PROPERTY_NAME_ENTITYMANAGER_PACKAGES_TO_SCAN = "entitymanager.packages.to.scan";
#Resource
private Environment env;
#Bean
public DataSource dataSource()
{
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(env.getRequiredProperty(PROPERTY_NAME_DATABASE_DRIVER));
dataSource.setUrl(env.getRequiredProperty(PROPERTY_NAME_DATABASE_URL));
dataSource.setUsername(env.getRequiredProperty(PROPERTY_NAME_DATABASE_USERNAME));
dataSource.setPassword(env.getRequiredProperty(PROPERTY_NAME_DATABASE_PASSWORD));
return dataSource;
}
#Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory()
{
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setDataSource(dataSource());
entityManagerFactoryBean.setPersistenceProviderClass(HibernatePersistence.class);
entityManagerFactoryBean.setPackagesToScan(env.getRequiredProperty(PROPERTY_NAME_ENTITYMANAGER_PACKAGES_TO_SCAN));
entityManagerFactoryBean.setJpaProperties(hibProperties());
return entityManagerFactoryBean;
}
private Properties hibProperties()
{
Properties properties = new Properties();
properties.put(PROPERTY_NAME_HIBERNATE_DIALECT, env.getRequiredProperty(PROPERTY_NAME_HIBERNATE_DIALECT));
properties.put(PROPERTY_NAME_HIBERNATE_SHOW_SQL, env.getRequiredProperty(PROPERTY_NAME_HIBERNATE_SHOW_SQL));
return properties;
}
#Bean
public JpaTransactionManager transactionManager()
{
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
return transactionManager;
}
}
pom.xml
<?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>`enter code here`
<groupId>org.test</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.7</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-ws</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.9.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Please help, thanks.

Answer 1

You are using Spring Boot then use Spring Boot also the #ComponentScan should go on your application class. (remove it from your command line runner and controller).
#SpringBootApplication
#ComponentScan ({"demo","filmRental"})
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
#Component
class StaffCommandLineRunner implements CommandLineRunner {
#Autowired StaffServiceImpl sf;
#Override
public void run(String... arg0) throws Exception {
for(Staff staff : this.sf.findAll()) {
System.out.println(staff.getStaffID() + " > " + staff.getFirstName());
}
}
}
Next in your pom remove the spring-data-jpa, hibernate and persistence-api dependencies and replace with spring-boot-starter-data-jpa
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-ws</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
</dependencies>
Now you have dependencies that work together instead of trying to figure out a working combination.
Spring Boot already does auto configuration for you remove your JpaConfig and put the following properties in your application.properties (automatically loaded by Spring Boot!).
spring.datasource.url=<datasource-url>
spring.datasource.driver-class-name=<driver-class-name>
spring.datasource.username=<username>
spring.datasource.password=<password>
spring.jpa.database-platform=<hibernate-dialect>
spring.jpa.show-sql=<show-sql>
For the entity scan use #EntityScan on the application class.
#SpringBootApplication
#ComponentScan ({"demo","filmRental"})
#EntityScan("filmRental")
public class DemoApplication { ... }
Spring Boot now auto configures the DataSource, EntityManagerFactory, transactions, detects Spring Data JPA and enables repositories. I would suggest moving the DemoApplication and everything else in the filmRental package that way you can remove the #ComponentScan and #EntityScan from the DemoApplication.