JPAを使用してSpring Bootアプリケーションを開発していますが、このエラーが発生しています。正しい注釈を使用しているか依存関係が欠落しているかどうかはわかりません。どんな助けも大歓迎です。
これはエラーメッセージです
1:05:28 AM: Executing external task 'bootRun'...
:compileJava
:processResources UP-TO-DATE
:classes
:findMainClass
:bootRun
01:05:35.198 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Included patterns for restart : []
01:05:35.201 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Excluded patterns for restart : [/spring-boot-starter/target/classes/, /spring-boot-autoconfigure/target/classes/, /spring-boot-starter-[\w-]+/, /spring-boot/target/classes/, /spring-boot-actuator/target/classes/, /spring-boot-devtools/target/classes/]
01:05:35.201 [main] DEBUG org.springframework.boot.devtools.restart.ChangeableUrls - Matching URLs for reloading : [file:/C:/Users/zahid/IdeaProjects/giflib/build/classes/main/, file:/C:/Users/zahid/IdeaProjects/giflib/build/resources/main/]
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.3.RELEASE)
2018-01-24 01:05:35.539 INFO 14840 --- [ restartedMain] com.sweng.giflib.Application : Starting Application on DESKTOP-EKFI3C8 with PID 14840 (C:\Users\zahid\IdeaProjects\giflib\build\classes\main started by zahid in C:\Users\zahid\IdeaProjects\giflib)
2018-01-24 01:05:35.540 INFO 14840 --- [ restartedMain] com.sweng.giflib.Application : No active profile set, falling back to default profiles: default
2018-01-24 01:05:35.828 INFO 14840 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@396ad740: startup date [Wed Jan 24 01:05:35 CST 2018]; root of context hierarchy
2018-01-24 01:05:37.685 INFO 14840 --- [ restartedMain] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2018-01-24 01:05:37.697 INFO 14840 --- [ restartedMain] o.Apache.catalina.core.StandardService : Starting service Tomcat
2018-01-24 01:05:37.699 INFO 14840 --- [ restartedMain] org.Apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.14
2018-01-24 01:05:37.800 INFO 14840 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-01-24 01:05:37.801 INFO 14840 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1976 ms
2018-01-24 01:05:37.991 INFO 14840 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-01-24 01:05:37.992 INFO 14840 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-01-24 01:05:37.992 INFO 14840 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-01-24 01:05:37.992 INFO 14840 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-01-24 01:05:37.993 INFO 14840 --- [ost-startStop-1] .s.DelegatingFilterProxyRegistrationBean : Mapping filter: 'springSecurityFilterChain' to: [/*]
2018-01-24 01:05:37.994 INFO 14840 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2018-01-24 01:05:38.291 WARN 14840 --- [ restartedMain] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityConfig': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'userRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Cannot create inner bean '(inner bean)#64397422' 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)#64397422': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
2018-01-24 01:05:38.294 INFO 14840 --- [ restartedMain] o.Apache.catalina.core.StandardService : Stopping service Tomcat
2018-01-24 01:05:38.321 INFO 14840 --- [ restartedMain] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2018-01-24 01:05:38.444 ERROR 14840 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field userRepository in com.sweng.giflib.service.UserServiceImpl required a bean named 'entityManagerFactory' that could not be found.
Action:
Consider defining a bean named 'entityManagerFactory' in your configuration.
BUILD SUCCESSFUL
Total time: 9.681 secs
1:05:38 AM: External task execution finished 'bootRun'.
build.gradle
buildscript {
ext {
springBootVersion = '1.5.3.RELEASE'
}
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
group 'com.sweng'
version '1.0-SNAPSHOT'
apply plugin: 'Java'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'war'
repositories {
mavenCentral()
}
springBoot {
mainClass = "com.sweng.giflib.Application"
}
dependencies {
compile "org.springframework.boot:spring-boot-starter-data-jpa:$springBootVersion"
compile "org.springframework.boot:spring-boot-starter-web:$springBootVersion"
compile "org.springframework.boot:spring-boot-starter-thymeleaf:$springBootVersion"
compile "org.springframework.boot:spring-boot-devtools:$springBootVersion"
compile "mysql:mysql-connector-Java"
compile "org.springframework.boot:spring-boot-starter-security:$springBootVersion"
compile "org.thymeleaf.extras:thymeleaf-extras-springsecurity4:2.1.2.RELEASE"
providedRuntime 'org.springframework.boot:spring-boot-starter-Tomcat'
}
application.properties
spring.datasource.url== jdbc:mysql://localhost:3306/giflib
spring.db.driver= com.mysql.jdbc.Driver
spring.datasource.username = su
spring.datasource.password =
spring.jpa.show-sql = true
#spring.jpa.hibernate.ddl-auto = update
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
spring.jpa.hibernate.naming.strategy = org.hibernate.cfg.ImprovedNamingStrategy
Application.Java
package com.sweng.giflib;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
@ComponentScan
@Configuration
@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
@EnableJpaRepositories(basePackages = "com.sweng.giflib.repository")
@SpringBootApplication(scanBasePackages= "com.sweng.giflib")
public class Application extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
serService.Java
package com.sweng.giflib.service;
import com.sweng.giflib.model.User;
import org.springframework.security.core.userdetails.UserDetailsService;
public interface UserService extends UserDetailsService {
User findByUsername(String username);
}
serServiceImpl.Java
package com.sweng.giflib.service;
import com.sweng.giflib.repository.UserRepository;
import com.sweng.giflib.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserRepository userRepository;
@Override
public User findByUsername(String username)
{
return userRepository.findByusername(username);
}
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
// Load user from the database (throw exception if not found)
User user = userRepository.findByusername(username);
if(user == null) {
throw new UsernameNotFoundException("User not found");
}
// Return user object
return user;
}
}
serRepository.Java
package com.sweng.giflib.repository;
import com.sweng.giflib.model.User;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface UserRepository extends CrudRepository<User, Long>{
User findByusername(String name);
}
ser.Java
package com.sweng.giflib.model;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import javax.persistence.*;
import javax.validation.constraints.Size;
import Java.util.ArrayList;
import Java.util.Collection;
import Java.util.List;
@Entity
public class User implements UserDetails {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Column(unique = true)
@Size(min = 8, max = 20)
private String username;
@Column(length = 100)
private String password;
@Column(nullable = false)
private boolean enabled;
@OneToOne
@JoinColumn(name = "role_id")
private Role role;
@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
List<GrantedAuthority> authorities = new ArrayList<>();
authorities.add(new SimpleGrantedAuthority(role.getName()));
return authorities;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Override
public String getPassword() {
return password;
}
@Override
public String getUsername() {
return username;
}
@Override
public boolean isAccountNonExpired() {
return true;
}
@Override
public boolean isAccountNonLocked() {
return true;
}
@Override
public boolean isCredentialsNonExpired() {
return true;
}
@Override
public boolean isEnabled() {
return enabled;
}
}
「「entityManagerFactory」という名前のBeanが見つかりませんでした」というエラーメッセージが表示されました。
多くのグーグルでこの問題を解決してください。 JPAの手動構成を設定しました。
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
return sessionFactory;
}
しかし、デフォルトではJPAは名前 'entityManagerFactory'でsessionFactoryを検索するため、コードを次のように変更します。
@Bean(name="entityManagerFactory")
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
return sessionFactory;
}
スプリングブートをmysqlデータベースに接続しようとすると、同じ問題が発生します。
私を救ったのは、pomファイルにhibernate-coreの正しいバージョンを追加したことです。休止状態以降5.2.0。 hibernate-entitymanagerは不要になりました。 Hibernate-core 5.2.0では、プロセスの収集中にSpring Data JPAに問題があります。Hibernate-core 5.2.1
以上は、Spring Data JPAを使用している場合、Spring Data JPAでは問題ありません。
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version> 5.2.1.Final</version>
</dependency>
exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class}
を削除する必要があります(この場合、Springは自動的にデータソースを設定します)または 手動でデータソースを設定します
@Bean
@ConfigurationProperties(prefix="spring.datasource")
public DataSource dataSource() {
return new YourCustomDataSource();
}
UPDATE:プロパティに間違いがあるようです:
spring.datasource.url== jdbc:mysql://localhost:3306/giflib
spring.db.driver= com.mysql.jdbc.Driver
最初の行から余分な=
を削除し、2番目の行にspring.datasource.driver-class-name
プロパティ名を使用してみてください。
spring.datasource.url=jdbc:mysql://localhost:3306/giflib
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
また、MySQL依存関係にバージョンを追加します。
compile "mysql:mysql-connector-Java:6.0.6"
これらの間違いのために、Springはデータソースタイプを正しく自動検出することができないと思います。
EntityManagerFactoryの自動作成をバイパスすることを選択しました。したがって、構成クラスの1つ、おそらくアプリケーションクラスに、以下の2つのBeanを追加する必要があります。
private static String PROP_DB_DRIVER_CLASS = "spring.db.driver";
private static String PROP_DB_URL = "spring.datasource.url";
private static String PROP_DB_USER = "spring.datasource.username";
private static String PROP_DB_PASS = "spring.datasource.password";
@Autowired
private Environment env;
@Bean
public DataSource dataSource(){
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(env.getProperty(PROP_DB_DRIVER_CLASS));
dataSource.setUrl(env.getProperty(PROP_DB_URL));
dataSource.setUsername(env.getProperty(PROP_DB_USER));
dataSource.setPassword(env.getProperty(PROP_DB_PASS));
return dataSource;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan("com.sweng.giflib.model");
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
em.setJpaProperties(additionalProperties());
return em;
}
休止状態の依存関係をプロジェクトに追加することを忘れないでください。