Question

当主列具有自动递增时，我在通过Hibernate将数据插入Postgresql时遇到问题。我也在这个论坛上经历过多个帖子，但找不到适合我的解决方案。

我的表和序列在“apiprofile”模式中定义。当我运行代码时，它无法找到序列名称。即使我用schema.sequence提及它，它仍然不起作用。

感谢任何帮助。

以下是我所面临的代码段和异常。

序列＆amp;表：

CREATE SEQUENCE apiprofile.login_session_id_seq;

CREATE TABLE apiprofile.login_session (
  id bigint NOT NULL DEFAULT nextval('apiprofile.login_session_id_seq'),
  username varchar(255) NOT NULL,
  token varchar(500) NOT NULL,
  active_ind boolean NOT NULL,
  login_time timestamp NOT NULL,
  PRIMARY KEY (id)
);

Bean文件

public class LoginSession {

@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "session_generator")
@SequenceGenerator(name="session_generator", sequenceName = "apiprofile.login_session_id_seq", schema = "apiprofile", allocationSize=1) 
@Column(name="id", updatable = false, nullable = false)
private Integer id;

插入操作

LoginSession session = new LoginSession();
session.setUsername(userName);
session.setToken(token);
session.setActive(true);
session.setLoginTime(new Timestamp(System.currentTimeMillis()));
getSession().saveOrUpdate(session);

异常

Hibernate: 
    select
        next_val as id_val 
    from
        login_session_id_seq for update

could not read a hi value
org.postgresql.util.PSQLException: ERROR: relation "login_session_id_seq" does not exist
  Position: 32
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2103) ~[postgresql-9.1-901-1.jdbc4.jar:?]
    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1836) ~[postgresql-9.1-901-1.jdbc4.jar:?]
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257) ~[postgresql-9.1-901-1.jdbc4.jar:?]

Hibernate for Postgresql中的序列查找错误

0 个答案: