'字段列表'gwt项目中的未知列'... jdoDetachedState' [英] Unknown column '...jdoDetachedState' in 'field list' gwt project

问题描述

我有奇怪的问题。当我在没有gwt的情况下运行我的项目时，只是休眠 - 一切正常，但是当我在gwt中插入代码时，这个异常就出现了。

  PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions 
 WARN：SQL错误：1054，SQLState：42S22 
 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions 
错误：'字段列表'中的未知列'employee0_.jdoDetachedState'
  

我完成了这个

 列表< Employee> list = session.createQuery（FROM Employee）。list（）; 
  

我的查询看起来像：

<$ p $ h
选择
employee0_.id作为id1_1_，
employee0_.born as born2_1_，
employee0_.department as departme3_1_，
employee0_ 。first_name as first_na4_1_，
employee0_.jdoDetachedState as jdoDetac5_1_，
employee0_.post as post8_1_，
employee0_.salary as salary6_1_，
employee0_.second_name as second_n7_1_ $ b $ from
员工employee0_

和我的课程外观

  @Entity 
 @Table（name =employee）
 public class Employee实现Serializable {
 
 @Id 
 public Integer id; 
 
 @Column（nullable = false）
 public String first_name; 
 
 @Column（nullable = false）
 public String second_name; 
 
 @OneToOne 
 @JoinColumn（name =post）
公共职位发布; 
 
 @Column（nullable = false）
 public String born; 
 
 @Column（nullable = false）
 public Integer工资; 
 
 public String department; 
 
 public Employee（）{} 
 $ b $ ... public getters and setters 
} 
  

其他查询可行，但这不行。我找到了 https://stackoverflow.com/questions/ 16319853 / unexpected-jdodetachedstate-column-when-using-hibernate-in-gwt-project ，但无法理解它是如何提供帮助的。

解决方案

我遇到了同样的问题，我在这个网站添加以下几行：

  @Transient 
保护对象[] jdoDetachedState; 
  

这对我有帮助。也许，这会帮助任何人。

I have strange problems. When I ran my project without gwt, just hibernate - all is ok, but when I insert it code in gwt, this exception became appear.

PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 1054, SQLState: 42S22
PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Unknown column 'employee0_.jdoDetachedState' in 'field list'

I done this

List<Employee> list = session.createQuery("FROM Employee").list();

My query look like:

 Hibernate: 
    select
    employee0_.id as id1_1_,
    employee0_.born as born2_1_,
    employee0_.department as departme3_1_,
    employee0_.first_name as first_na4_1_,
    employee0_.jdoDetachedState as jdoDetac5_1_,
    employee0_.post as post8_1_,
    employee0_.salary as salary6_1_,
    employee0_.second_name as second_n7_1_ 
    from
    employee employee0_

and my class look

@Entity
@Table(name="employee")
public class Employee implements Serializable{

    @Id
    public Integer id;

    @Column(nullable=false)
    public String first_name;

    @Column(nullable=false)
    public String second_name;

    @OneToOne
    @JoinColumn(name = "post")
    public Position post;

    @Column(nullable=false)
    public String born;

    @Column(nullable=false)
    public Integer salary;

    public String department;

    public Employee(){}

    ... public getters and setters
}

Other query works, but this don't. I've found https://stackoverflow.com/questions/16319853/unexpected-jdodetachedstate-column-when-using-hibernate-in-gwt-project but can't inderstand how it can help.

解决方案

I've had the same problem and I've got solution at this web-site with adding these lines:

@Transient 
protected Object[] jdoDetachedState; 

This helped for me. Maybe, this will help anybody.

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