如果使用MySQL,则可以成功地创建实体和枚举。
我将数据库更改为PostgreSQL9.4。因此,我有一些错误如下:
..。导致: org.hibernate.tool.schema.spi.SchemaManagementException:无法对JDBC目标创建表角色执行模式管理(id int8 not null,name枚举(‘int8’,'USER','SEARCH')不为空,主键(Id) org.hibernate.tool.schema.internal.TargetDatabaseImpl.accept(TargetDatabaseImpl.java:59) ~hibernate的-核-5.0.12.final.jar:5.0.12在org.hibernate.tool.schema.internal.SchemaMigratorImpl.applySqlString(SchemaMigratorImpl.java:431) ~hibernate-核心-5.0.12.Final.jar:5.0.12在org.hibernate.tool.schema.internal.SchemaMigratorImpl.applySqlStrings(SchemaMigratorImpl.java:420) ~hibernate-core- -5.0.12.Final.jar:5.0.12.Final在org.hibernate.tool.schema.internal.SchemaMigratorImpl.createTable(SchemaMigratorImpl.java:236) ~hibernate-core-5.0.12.final.jar:5.0.12 Final.jar在org.hibernate.tool.schema.internal.SchemaMigratorImpl.doMigrationToTargets(SchemaMigratorImpl.java:167) ~hibernate-core-5.0.12.Final.jar:5.0.12在org.hibernate.tool.schema.internal.SchemaMigratorImpl.doMigration(SchemaMigratorImpl org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2455) ~PostgreSQL9.4.1212.jre7.jar:9.4.1212.jre7位于org.postgresql.core.v3.QueryExecutorImpl。执行( org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:430) )~PostgreSQL9.4.1212.jre7.jar:9.4.1212.jre7 at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:356) ~PostgreSQL9.4.1212.jre7.jar:9.4.1212.jre7.jar:9.4.1212.jre7.jar在org.postgresql.jdbc.PgStatement.execute(PgStatement.java:356)~PostgreSQL9.4.1212.jre7.jar:9.4.1212.jre7.jar( 303) ~PostgreSQL9.4.1212.jre7.jar:9.4.1212.jre7在org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:289) ~PostgreSQL9.4.1212.jre7.jar:9.4.1212.jre7.jar:9.4.1212.jre7在org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:266) ~PostgreSQL9.4.1212.jre7.jar:9.4.1212.jre7.jar:9.4.1212.jre7在org.postgresql.jdbc.PgStatement.executeUpdate(PgStatement.java:246) ~postgresql-9。4.1212.jre7.jar:9.4.1212.jre7在sun.reflect.NativeMethodAccessorImpl.invoke0(Native方法) ~na:1.8.0_191 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~na:1.8.0_191 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~na:1.8.0_191 at java.lang.reflect.Method.invoke(Method.java:498) ~na:1.8.0_191 at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:114) ~tomcat-jdbc-8.5.14.jar:na,地址为com.sun.agent。$Proxy93.ExecuteUpdate(未知源) ~na:na在org.hibernate.tool.schema.internal.TargetDatabaseImpl.accept(TargetDatabaseImpl.java:56) ~hibernate-核-5.0.12.Final.jar:5.0.12最后.32个常见帧省略了
我的灵魂:
public enum RoleType {
ADMIN("ADMIN"),
SEARCH("SEARCH"),
USER("USER");
private final String value;
RoleType(final String value) {
this.value = value;
}
@Override
public String toString() {
return value;
}
}我的角色课:
@Entity
@Table(name = "role")
public class Role {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@JsonIgnore
private Long id;
@NotNull
@Enumerated(EnumType.STRING)
@Column(columnDefinition = "enum('ADMIN', 'USER', 'SEARCH')")
private RoleType name;
@ManyToMany(mappedBy = "roles")
@JsonIgnore
private Set<User> users;
public Role() {
}
public Role(RoleType name) {
this.name = name;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public RoleType getName() {
return name;
}
public void setName(RoleType name) {
this.name = name;
}
public Set<User> getUsers() {
return users;
}
public void setUsers(Set<User> users) {
this.users = users;
}
@Override
public String toString() {
return name.toString();
}
}我的postgresql application.yml文件:
spring:
datasource:
url: jdbc:postgresql://localhost:5432/mydb?autoReconnect=true&useSSL=false
username: username
password: password
driverClassName: org.postgresql.Driver
jpa:
hibernate:
ddl-auto: update
properties:
hibernate:
dialect: org.hibernate.dialect.PostgreSQLDialect我以前用于mysql的application.yml文件:
spring:
datasource:
url: jdbc:mysql://localhost:3306/mydb?autoReconnect=true&useSSL=false
username: user
password: password
driverClassName: com.mysql.jdbc.Driver
jpa:
hibernate:
ddl-auto: update我的pom.xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
...
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
</dependency>
<!--dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency-->
</dependencies>如何将其配置为自动生成枚举类型?
发布于 2019-02-20 17:25:44
我假设您希望从MySQL迁移到PostgreSQL。
使用DB枚举PostgreSQL不同于MySQL。
了解有关如何在PostgreSQL中创建枚举的更多信息:https://www.postgresql.org/docs/9.1/datatype-enum.html
这意味着您不能使用JPA/Hibernate创建枚举。
https://stackoverflow.com/questions/54791884
复制相似问题