J'ai vu beaucoup de questions, mais les réponses ne satisfont pas mon problème ... Je commence par Spring Boot et je suis complètement perdu.
L'erreur est:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: No identifier specified for entity: pack.datas.entities.Degree
/// autres lignes
Caused by: org.hibernate.AnnotationException: No identifier specified for entity: pack.datas.entities.Degree
Le point d'entrée:
package pack;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})
@RestController
@EntityScan
public class CandidatesRecruitmentApplication {
public static void main(String[] args) {
SpringApplication.run(CandidatesRecruitmentApplication.class, args);
}
}
Les classes :
package pack.datas;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import org.hibernate.jpa.boot.spi.EntityManagerFactoryBuilder;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.stereotype.Component;
@Component
@Configuration
@EnableJpaRepositories
public class DatasFactory {
private DataSource dataSource;
public DatasFactory() {
super();
}
@Bean
@ConfigurationProperties(prefix="spring.datasource")
public DataSource dataSource() {
if(this.dataSource == null)
return this.dataSource = DataSourceBuilder.create().build();
else
return this.dataSource;
}
package pack.datas.entities;
import Java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Table;
import org.springframework.data.annotation.Id;
@Entity
@Table(name = "degree")
public class Degree implements Serializable {
private static final long serialVersionUID = -8900492704842756948L;
@Id
@GeneratedValue
@Column(name = "pk_id")
private Integer id;
@Column(name = "degree_i")
private Integer degreeId;
@Column(name = "degree_s_en")
private String degreeEn;
@Column(name = "degree_s_fr")
private String degreeFr;
protected Degree() {
}
public Degree(Integer id, Integer degreeId, String degreeEn, String degreeFr) {
super();
this.id = id;
this.degreeId = degreeId;
this.degreeEn = degreeEn;
this.degreeFr = degreeFr;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getDegreeId() {
return degreeId;
}
public void setDegreeId(Integer degreeId) {
this.degreeId = degreeId;
}
public String getDegreeEn() {
return degreeEn;
}
public void setDegreeEn(String degreeEn) {
this.degreeEn = degreeEn;
}
public String getDegreeFr() {
return degreeFr;
}
public void setDegreeFr(String degreeFr) {
this.degreeFr = degreeFr;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
result = prime * result + ((degreeEn == null) ? 0 : degreeEn.hashCode());
result = prime * result + ((degreeFr == null) ? 0 : degreeFr.hashCode());
result = prime * result + ((degreeId == null) ? 0 : degreeId.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Degree other = (Degree) obj;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
if (degreeEn == null) {
if (other.degreeEn != null)
return false;
} else if (!degreeEn.equals(other.degreeEn))
return false;
if (degreeFr == null) {
if (other.degreeFr != null)
return false;
} else if (!degreeFr.equals(other.degreeFr))
return false;
if (degreeId == null) {
if (other.degreeId != null)
return false;
} else if (!degreeId.equals(other.degreeId))
return false;
return true;
}
@Override
public String toString() {
return "Degree [ " + degreeId + " - " + degreeEn + "/" + degreeFr + " ]";
}
}
package pack.datas.controller;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class DaoController {
@GetMapping("/")
@ResponseBody
@Transactional(readOnly = true)
String home() {
return "<h1>Test Program</h1>";
}
}
Le 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>
<groupId>pack</groupId>
<artifactId>candidates-recruitment</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>candidates-recruitment</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.2.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.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.Apache.maven.surefire/surefire-api -->
<dependency>
<groupId>org.Apache.maven.surefire</groupId>
<artifactId>surefire-api</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Camden.SR3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.Apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
</repository>
<repository>
<id>org.jboss.repository.releases</id>
<name>JBoss Maven Release Repository</name>
<url>https://repository.jboss.org/nexus/content/repositories/releases</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
</pluginRepositories>
</project>
Le fichier application.yml:
# DATASOURCE (DataSourceProperties)
spring:
datasource:
url: jdbc:postgresql://localhost:5432/recruitments_db
username: postgresql
password: postgresql
driver-class-name: org.postgresql.Driver
# HIBERNATE (HibernateProperties)
hibernate:
dialect: org.hibernate.dialect.PostgreSQLDialect
show_sql: true
hbm2ddl.auto: create
#SECURITY (SecuriyProperties)
security:
user:
name: TestU
password: Test1
S'il vous plaît j'ai besoin de votre aide !
On dirait que vous avez utilisé l'annotation @Id
à partir du mauvais package dans votre classe Degree
. Changez votre importation de org.springframework.data.annotation.Id
à javax.persistence.Id
. Cela devrait aider avec l'exception que vous obtenez.
utilisation
javax.persistence.Id
au lieu de
org.springframework.data.annotation.Id
va résoudre le problème
J'ai rencontré le même problème aujourd'hui. Après un certain débogage, j'ai appris que j'avais annoté l'un des champs de ma classe de modèle avec @GeneratedValue(strategy = GenerationType.AUTO)
mais que je n'ai pas ajouté l'annotation @Id
à ce champ.
Le fichier jar Hibernate était corrompu dans le référentiel local de maven; il prenait chaque fois une bibliothèque corrompue après la suppression du problème du référentiel maven local résolu
C:\Utilisateurs\utilisateur.m2\référentiel