Spring boot 报错：Spring table 不存在
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【中文标题】Spring boot 报错：Spring table 不存在【英文标题】：Spring boot error: Spring table doesn't exist 【发布时间】：2021-05-11 17:48:13 【问题描述】：当我尝试在数据库中保存角色时，会出现“springit.role 表不存在”。
我没有在我的数据库中创建一个名为“role”的表，因为我现在正在学习的课程中的老师没有创建一个。
我在 DatabaseLoader 类方法中调用“addUsersAndRoles()”时出现的异常
那么，问题出在哪里？
角色.java
@Entity
@RequiredArgsConstructor
@Getter
@Setter
@ToString
@NoArgsConstructor
public class Role
@Id
@GeneratedValue
private Long id;
@NonNull
private String name;
@ManyToMany( mappedBy = "roles")
private Collection<User> users;
用户.java
@Entity
@RequiredArgsConstructor
@Getter
@Setter
@ToString
@NoArgsConstructor
public class User implements UserDetails
@Id @GeneratedValue
private Long id;
@NonNull
@Size(min = 8, max = 20)
@Column(nullable = false, unique = true)
private String email;
@NonNull
@Column(length = 100)
private String password;
@NonNull
@Column(nullable = false)
private boolean enabled;
@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(
name = "users_roles",
joinColumns = @JoinColumn(name = "user_id",referencedColumnName = "id"),
inverseJoinColumns = @JoinColumn(name = "role_id",referencedColumnName = "id")
)
private Set<Role> roles = new HashSet<>();
public void addRole(Role role)
roles.add(role);
public void addRoles(Set<Role> roles)
roles.forEach(this::addRole);
@Override
public Collection<? extends GrantedAuthority> getAuthorities()
return roles.stream().map(role -> new SimpleGrantedAuthority(role.getName())).collect(Collectors.toList());
@Override
public String getUsername()
return email;
@Override
public boolean isAccountNonExpired()
return true;
@Override
public boolean isAccountNonLocked()
return true;
@Override
public boolean isCredentialsNonExpired()
return true;
@Override
public boolean isEnabled()
return enabled;
DatabaseLoader.java
@Component
public class DatabaseLoader implements CommandLineRunner
private LinkRepository linkRepository;
private CommentRepository commentRepository;
private RoleRepository roleRepository;
private UserRepository userRepository;
public DatabaseLoader(LinkRepository linkRepository, CommentRepository commentRepository, RoleRepository roleRepository, UserRepository userRepository)
this.linkRepository = linkRepository;
this.commentRepository = commentRepository;
this.roleRepository = roleRepository;
this.userRepository = userRepository;
@Override
public void run(String... args)
addUsersAndRoles();
Map<String,String> links = new HashMap<>();
links.put("Securing Spring Boot APIs and SPAs with OAuth 2.0","https://auth0.com/blog/securing-spring-boot-apis-and-spas-with-oauth2/?utm_source=reddit&utm_medium=sc&utm_campaign=springboot_spa_securing");
links.put("Easy way to detect Device in Java Web Application using Spring Mobile - Source code to download from GitHub","https://www.opencodez.com/java/device-detection-using-spring-mobile.htm");
links.put("Tutorial series about building microservices with SpringBoot (with Netflix OSS)","https://medium.com/@marcus.eisele/implementing-a-microservice-architecture-with-spring-boot-intro-cdb6ad16806c");
links.forEach((k,v) ->
linkRepository.save(new Link(k,v));
// we will do something with comments later
);
long linkCount = linkRepository.count();
System.out.println("Number of links in the database: " + linkCount );
private void addUsersAndRoles()
BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
String secret = "bcrypt" + encoder.encode("password");
Role userRole = new Role("ROLE_USER");
roleRepository.save(userRole);
Role adminRole = new Role("ROLE_ADMIN");
roleRepository.save(adminRole);
User user = new User("user@gmail.com",secret,true);
user.addRole(userRole);
userRepository.save(user);
User admin = new User("admin@gmail.com",secret,true);
admin.addRole(adminRole);
userRepository.save(admin);
User master = new User("master@gmail.com",secret,true);
master.addRoles(new HashSet<>(Arrays.asList(userRole,adminRole)));
userRepository.save(master);
schema.sql
CREATE DATABASE IF NOT EXISTS `springit`;
USE `springit`;
DROP TABLE IF EXISTS `comment`;
CREATE TABLE `comment` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`created_by` varchar(255) DEFAULT NULL,
`creation_date` datetime DEFAULT NULL,
`last_modified_by` varchar(255) DEFAULT NULL,
`last_modified_date` datetime DEFAULT NULL,
`body` varchar(255) DEFAULT NULL,
`link_id` bigint(20) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `FKoutxw6g1ndh1t6282y0fwvami` (`link_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
DROP TABLE IF EXISTS `link`;
CREATE TABLE `link` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`created_by` varchar(255) DEFAULT NULL,
`creation_date` datetime DEFAULT NULL,
`last_modified_by` varchar(255) DEFAULT NULL,
`last_modified_date` datetime DEFAULT NULL,
`title` varchar(255) DEFAULT NULL,
`url` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
我是 springboot 的新手，所以请帮忙。
例外情况：
java.lang.IllegalStateException：无法执行 CommandLineRunner 在 org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:807) ~[spring-boot-2.4.2.jar:2.4.2] 在 org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:788) ~[spring-boot-2.4.2.jar:2.4.2] 在 org.springframework.boot.SpringApplication.run(SpringApplication.java:333) ~[spring-boot-2.4.2.jar:2.4.2] 在 org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2] 在 org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2] 在 com.example.spring_start.SpringStartApplication.main(SpringStartApplication.java:26) ~[classes/:na] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na] 在 java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] 在 java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na] 在 org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.2.jar:2.4.2] 引起：org.springframework.dao.InvalidDataAccessResourceUsageException：无法执行语句； SQL [不适用]；嵌套异常是 org.hibernate.exception.SQLGrammarException：无法执行语句 在 org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:259) ~[spring-orm-5.3.3.jar:5.3.3] 在 org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:233) ~[spring-orm-5.3.3.jar:5.3.3] 在 org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551) ~[spring-orm-5.3.3.jar:5.3.3] 在 org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61) ~[spring-tx-5.3.3.jar:5.3.3] 在 org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242) ~[spring-tx-5.3.3.jar:5.3.3] 在 org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152) ~[spring-tx-5.3.3.jar:5.3.3] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:174) ~[spring-data-jpa-2.4.3.jar:2.4.3] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) ~[spring-aop-5.3.3.jar:5.3.3] 在 com.sun.proxy.$Proxy141.save（未知来源）~[na:na] 在 com.example.spring_start.bootstrap.DatabaseLoader.addUsersAndRoles(DatabaseLoader.java:66) ~[classes/:na] 在 com.example.spring_start.bootstrap.DatabaseLoader.run(DatabaseLoader.java:37) ~[classes/:na] 在 org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:804) ~[spring-boot-2.4.2.jar:2.4.2] ...省略了10个常用框架 引起：org.hibernate.exception.SQLGrammarException：无法执行语句 在 org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:200) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.dialect.identity.GetGeneratedKeysDelegate.executeAndExtract(GetGeneratedKeysDelegate.java:57) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:43) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3200) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3806) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:84) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:645) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:282) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:263) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:317) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:330) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:287) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:193) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:123) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:185) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:128) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:55) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:102) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:720) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 org.hibernate.internal.SessionImpl.persist(SessionImpl.java:706) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na] 在 java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] 在 java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na] 在 org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311) ~[spring-orm-5.3.3.jar:5.3.3] 在 com.sun.proxy.$Proxy134.persist(Unknown Source) ~[na:na] 在 org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:557) ~[spring-data-jpa-2.4.3.jar:2.4.3] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na] 在 java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] 在 java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na] 在 org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:289) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:524) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:285) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:531) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:156) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:131) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:80) ~[spring-data-commons-2.4.3.jar:2.4.3] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-5.3.3.jar:5.3.3] 在 org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) ~[spring-tx-5.3.3.jar:5.3.3] 在 org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.3.jar:5.3.3] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.3.jar:5.3.3] 在 org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) ~[spring-tx-5.3.3.jar:5.3.3] ...省略了20个常用框架 引起：java.sql.SQLSyntaxErrorException：表'springit.role'不存在 在 com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1092) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1040) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.mysql.cj.jdbc.ClientPreparedStatement.executeLargeUpdate(ClientPreparedStatement.java:1347) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdate(ClientPreparedStatement.java:1025) ~[mysql-connector-java-8.0.22.jar:8.0.22] 在 com.zaxxer.hikari.pool.ProxyPreparedStatement.executeUpdate(ProxyPreparedStatement.java:61) ~[HikariCP-3.4.5.jar:na] 在 com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeUpdate(HikariProxyPreparedStatement.java) ~[HikariCP-3.4.5.jar:na] 在 org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:197) ~[hibernate-core-5.4.27.Final.jar:5.4.27.Final]
【问题讨论】：
【参考方案1】：您肯定会需要该表，无论是您自己创建的还是 Hibernate 创建的。
您可以使用 JPA 将配置添加到 Spring Boot 应用程序中，以便自动生成数据库模式（或缺失的部分）。看这里https://docs.spring.io/spring-boot/docs/1.1.0.M1/reference/html/howto-database-initialization.html
【讨论】：
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