有野生动物8.2.0。
有一个postgres db和一个名为'authorization_central'的模式。
实体模式是：
@XmlRootElement(name = "users")
@Entity
@Table(name = "tblusers", schema = "authorization_central")
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String userName;
private String password;
@XmlElement
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
@XmlElement
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@XmlElement
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof User)) {
return false;
}
User other = (User) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
@Override
public String toString() {
return "domain.models.User[ id=" + id + " ]";
}
}
persistence.xml是
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence">
<persistence-unit name="UserPersistenceUnit" transaction-type="JTA">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<class>domain.models.User</class>
<properties>
<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://127.0.0.1:5432/postgres"/>
<property name="javax.persistence.jdbc.user" value="postgres"/>
<property name="javax.persistence.jdbc.password" value="1234"/>
<!--<property name="javax.persistence.jdbc.user" value="rastin"/>-->
<!--<property name="javax.persistence.jdbc.password" value="bt_Ummah"/>-->
<!--<property name="javax.persistence.schema-generation.database.action" value="create"/>-->
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
</properties>
</persistence-unit>
</persistence>
我的问题出在这堂课上：
@Transactional
public class EntityDao {
@PersistenceContext(name = "UserPersistenceUnit")
EntityManager entityManager;
public void add(Object t) {
try {
System.out.println("start adding4.");
if (entityManager == null) {
System.out.println("entity manager is null.");
entityManager = Persistence.
createEntityManagerFactory("UserPersistenceUnit").
createEntityManager();
if (entityManager != null) {
System.out.println("entity manager created.");
}
}
// entityManager.getTransaction().begin();
entityManager.persist(t);
// entityManager.getTransaction().commit();
} catch (Exception e) {
e.printStackTrace();
System.out.println(e.getMessage());
}
}
}
发给我错误：
错误[org.hibernate.engine.jdbc.spi.SqlExceptionHelper]（默认任务-7）未找到架构“AUTHORIZATION_CENTRAL”; SQL语句：
插入authorization_central.tblusers（密码，userName，id）值（？，？，？）[90079-173]
然后创建了一个名为rastinuser的用户。
创建了一个名为rastindb的数据库。
使用此用户和db登录。 psql -d rastindb -U rastinuser。
create schema authorization_central。
更改persistence.xml这两行：
<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://127.0.0.1:5432/rastindb"/>
<property name="javax.persistence.jdbc.user" value="rastinuser"/>
\ dn命令：
List of schemas
Name | Owner
-----------------------+------------
authorization_central | rastinuser
public | postgres
但已存在问题。
任何人都可以提供帮助吗？
感谢。