Пытаюсь подключить проект к БД, делаю всё по примеру:
https://spring.io/guides/gs/accessing-data-mysql/
Есть значит основная сущность - Author:
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;
import javax.persistence.*;
@Entity
@Getter
@Setter
@ToString
public class Author {
@Id
@GeneratedValue( strategy =
GenerationType.AUTO)
private long id;
private String firstName;
private String lastName;
private String middleName;
private String birthDate;
public Author() {
}
public Author(String firstName, String lastName, String middleName, String birthDate) {
this.firstName = firstName;
this.lastName = lastName;
this.middleName = middleName;
this.birthDate = birthDate;
}
}
Есть его контроллер:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.HashSet;
@RestController
public class AuthorController {
@Autowired
private AuthorRepo authorRepo;
private static Logger LOG = LoggerFactory
.getLogger(FifteenthApplication.class);
@GetMapping("/author")
public String authorGet(@RequestParam(value = "firstName", defaultValue = "null") String name, @RequestParam(value = "all", defaultValue = "false") String all){
String list = "";
try {
if(all.equals("true")){
Iterable<Author> authors = authorRepo.findAll();
for(Object k : authors){
list += (k.toString());
}
return list;
}
return "null";
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@PostMapping("/author")
public String authorPost(@RequestParam(value = "firstName", defaultValue = "null") String firstName, @RequestParam(value = "lastName", defaultValue = "null") String lastName, @RequestParam(value = "middleName", defaultValue = "null") String middleName, @RequestParam(value = "birthDate", defaultValue = "null") String birthDate){
Author author = new Author(firstName, lastName, middleName, birthDate);
authorRepo.save(author);
return "Success";
}
Есть пустой интерфейс репозиторий:
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface AuthorRepo extends CrudRepository <Author, Long> {
}
Есть собственно сам Main:
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class FifteenthApplication {
public static void main(String[] args) {
SpringApplication.run(FifteenthApplication.class, args);
}
}
В application.properties лежат данные для подключения к Postgre:
spring.datasource.url=jdbc:postgresql://localhost:1234/javatasks
hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
spring.datasource.username=postgres
spring.datasource.password=123
spring.jpa.generate-ddl=true
Ну и собственно сам 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.6</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>ru.mirea</groupId>
<artifactId>fifteenth</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>fifteenth</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</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-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate.orm/hibernate-core -->
<dependency>
<groupId>org.hibernate.orm</groupId>
<artifactId>hibernate-core</artifactId>
<version>6.0.0.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.6.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.6.8.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>resources</directory>
<targetPath>${project.build.outputDirectory}</targetPath>
<includes>
<include>application.properties</include>
</includes>
</resource>
</resources>
</build>
</project>
По идее всё должно работать, но при запуске spring boot, вылетает следующая ошибка:
2022-04-19 16:36:52.368 WARN 17568 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'authorController': Unsatisfied dependency expressed through field 'authorRepo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authorRepo' defined in ru.mirea.fifteenth.AuthorRepo defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Cannot create inner bean '(inner bean)#139fb87f' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#139fb87f': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
2022-04-19 16:36:52.375 INFO 17568 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-04-19 16:36:52.439 INFO 17568 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-04-19 16:36:52.527 ERROR 17568 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field authorRepo in ru.mirea.fifteenth.AuthorController required a bean named 'entityManagerFactory' that could not be found.
The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean named 'entityManagerFactory' in your configuration.
Process finished with exit code 0
Я понимаю, что программа не может найти бин, но опять же в официальном гайде ничего про это нет. При гуглении выскакивали совсем странные решения, которые не помогают. Так что же делать?
Простой
Простой