错误休眠呼叫使用注释

我收到此错误错误休眠呼叫使用注释

menu_categories is not mapped [from menu_categories]

我的休眠呼叫

public List loadMenuCategories(SessionFactory sessionFactory){ 
    List types = new ArrayList<MenuCategories>(); 
    Session session = sessionFactory.getCurrentSession(); 
    session.beginTransaction(); 

    Query query = session.createQuery("from menu_categories"); 
    List result = query.list(); 
    Iterator it = result.iterator(); 
    while(it.hasNext()){ 
     MenuCategories menuCategories = (MenuCategories)it.next(); 
     types.add(menuCategories); 
    } 
    sessionFactory.close(); 
    return types; 
}

和我的豆是

@Entity 
@Table(appliesTo = "menu_categories") 
public class MenuCategories extends BaseModel{ 

/** 
* 
*/ 
private static final long serialVersionUID = -4875305890823765933L; 

} 

package com.rizstien.myhotel.framework.model; 

import java.io.Serializable; 

import javax.persistence.Column; 
import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 

import org.apache.commons.lang.StringUtils; 

public class BaseModel implements Serializable { 

private static final long serialVersionUID = 1L; 

@Id 
@GeneratedValue(strategy = GenerationType.AUTO) 
@Column(name = "id", nullable=false) 
private Integer id; 

@Column(name = "name") 
private String name; 

@Column(name = "description") 
private String desc; 

@Column(name = "is_active") 
private boolean active; 

@Column(name = "no_of_items") 
private Integer noOfItems; 

public Integer getId() { 
    return id; 
} 
public void setId(Integer id) { 
    this.id = id; 
} 
public String getName() { 
    return name; 
} 
public void setName(String name) { 
    if (!StringUtils.isEmpty(name)) { 
     this.name = name; 
    } 
} 
public String getDesc() { 
    return desc; 
} 
public void setDesc(String desc) { 
    if (!StringUtils.isEmpty(desc)) { 
     this.desc = desc; 
    } 
} 
public boolean isActive() { 
    return active; 
} 
public void setActive(boolean active) { 
     this.active = active; 
} 
public Integer getNoOfItems() { 
    return noOfItems; 
} 
public void setNoOfItems(Integer noOfItems) { 
    this.noOfItems = noOfItems; 
} 

}

编辑这是我的休眠配置文件

<hibernate-configuration> 
<session-factory> 
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> 
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3311/myhotel</property> 
    <property name="hibernate.connection.username">root</property> 
    <property name="connection.password">root</property> 
    <property name="connection.pool_size">5</property> 
    <property name="dialect">org.hibernate.dialect.MySQLDialect</property> 
    <property name="current_session_context_class">thread</property> 
    <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> 
    <property name="show_sql">true</property> 
    <property name="hbm2ddl.auto">update</property> 

    <mapping class="com.rizstien.myhotel.menucategories.model.MenuCategories"/> 
</session-factory>

来源

2012-07-09 Rizstien

你执行的查询不是SQL。这是HQL。 HQL查询实体，而不是表格。因此它应该是from MenuCategories。这个实体，BTW应该被命名为MenuCategory，它的一个实例代表一个类别，而不是几个类别。

阅读the documentation。

来源

2012-07-09 12:10:15

我想这哥们。它仍然显示相同的错误，如MenuCategories未被映射[来自MenuCategories] – Rizstien 2012-07-09 12:23:33

然后你可能忘了将实体添加到hibernate配置文件中的实体列表。另外：我不是你的兄弟。 – 2012-07-09 12:28:26

你可以请举一个例子，说明如何在hibernate配置文件中添加实体？ – Rizstien 2012-07-09 12:34:17

我在注释中提到数据库名称，它解决了这个问题

@Entity 
@Table(name = "menu_categories", catalog="db_name") 
public class MenuCategories extends BaseModel{ 

private static final long serialVersionUID = -4875305890823765933L; 

}

来源

2012-07-09 13:51:43 Rizstien

错误休眠呼叫使用注释

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