关于org.hibernate.hql.ast.QuerySyntaxException:X is not 地图ped [from X]

关于org.hibernate.hql.ast.QuerySyntaxException:X is not mapped [from X]

?首先,我们先不说hibernate与其他的整合,就只说纯Hibernate项目.

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出现org.hibernate.hql.ast.QuerySyntaxException问题的人很多, 但是

有两种情况

①、Hibernate项目中，实体类的映射用.hbm.xml再加入hibernate.cfg.xml中

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②、实体类用annotations注解,hibernate.cfg.xml中指定<mapping />

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这两种情况出现QuerySyntaxException问题大多数简单的原因：

a、HQL语句问题(写成SQL没有以面向对象的形式)

b、.hbm.xml文件没有加入hibernate.cfg.xml中

我暂时从网络搜索这个问题出现最多也就上面说的原因,本人并没有发现其他原因只是个人观点。

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现在我的问题是：我用的是注解,HQL正确、注解映射为<mapping name="code">-- Create tablecreate table T_OMN_DUTY( ID CHAR(32) not null, CREATE_DATE TIMESTAMP(6) default current_date not null, UPDATE_DATE TIMESTAMP(6) default current_date not null, REMARK VARCHAR2(256), DUTY_CODE VARCHAR2(20), DUTY_NAME VARCHAR2(30), PARENT_ID CHAR(32), DUTY_LEVEL NUMBER, DUTY_SEQ VARCHAR2(256), DUTY_TYPE VARCHAR2(255), IS_LEAF VARCHAR2(10), SUB_COUNT NUMBER(10,2), SORT_NO NUMBER)tablespace USERS pctfree 10 initrans 1 maxtrans 255 storage ( initial 16 minextents 1 maxextents unlimited );-- Add comments to the table comment on table T_OMN_DUTY is '定义职务及上下级关系';-- Add comments to the columns comment on column T_OMN_DUTY.ID is '职务编号';comment on column T_OMN_DUTY.CREATE_DATE is '创建时间';comment on column T_OMN_DUTY.UPDATE_DATE is '更新时间';comment on column T_OMN_DUTY.REMARK is '备注';comment on column T_OMN_DUTY.DUTY_CODE is '职务代码';comment on column T_OMN_DUTY.DUTY_NAME is '职务名称';comment on column T_OMN_DUTY.PARENT_ID is '上级职务编号';comment on column T_OMN_DUTY.DUTY_LEVEL is '职务层次';comment on column T_OMN_DUTY.DUTY_SEQ is '职务序列号';comment on column T_OMN_DUTY.DUTY_TYPE is '例如科技类，审计类等';comment on column T_OMN_DUTY.IS_LEAF is '是否叶子节点';comment on column T_OMN_DUTY.SUB_COUNT is '子节点数';comment on column T_OMN_DUTY.SORT_NO is '排列顺序编号';-- Create/Recreate primary, unique and foreign key constraints alter table T_OMN_DUTY add constraint PK_T_OMN_DUTY primary key (ID) using index tablespace USERS pctfree 10 initrans 2 maxtrans 255 storage ( initial 64K minextents 1 maxextents unlimited );

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package org.ibas.framework.omn.entity;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.Id;import javax.persistence.Table;import org.hibernate.annotations.GenericGenerator;import org.hibernate.annotations.Proxy;/** * Duty entity.  * 定义职务及上下级关系 *  */@Entity@Proxy(lazy = false)@Table(name="T_OMN_DUTY")public class Duty  {protected String id; @GenericGenerator(name = "generator", strategy = "uuid.hex")@Id@GeneratedValue(generator = "generator")public String getId() {return id;}public void setId(String id) {this.id = id;} /** * 备注 */ protected  String remark; /** * 职务代码 */ protected  String dutyCode; /** * 职务名称 */ protected  String dutyName; /** * 上级职务编号 */ protected  String parentId; /** * 职务层次 */ protected  Integer dutyLevel; /** * 职务序列号 */ protected  String dutySeq; /** * 职位类型 */ protected  String dutyType; /** * 是否叶子节点 */ protected  String isLeaf; /** * 子节点数 */ protected  Double subCount; private Integer sortNo;//排列顺序编号     @Column(name = "SORT_NO")public Integer getSortNo() {return sortNo;}public void setSortNo(Integer sortNo) {this.sortNo = sortNo;}@Column(name="remark", length=256)public String getRemark() {    return this.remark;}    public void setRemark(String remark) {    this.remark = remark;}@Column(name="duty_code", length=20)public String getDutyCode() {    return this.dutyCode;}    public void setDutyCode(String dutyCode) {    this.dutyCode = dutyCode;}@Column(name="duty_name", length=30)public String getDutyName() {    return this.dutyName;}    public void setDutyName(String dutyName) {    this.dutyName = dutyName;}@Column(name="parent_id", length=32)public String getParentId() {    return this.parentId;}    public void setParentId(String parentId) {    this.parentId = parentId;}@Column(name="duty_level", length=22)public Integer getDutyLevel() {    return this.dutyLevel;}    public void setDutyLevel(Integer dutyLevel) {    this.dutyLevel = dutyLevel;}@Column(name="duty_seq", length=256)public String getDutySeq() {    return this.dutySeq;}    public void setDutySeq(String dutySeq) {    this.dutySeq = dutySeq;}@Column(name="duty_type", length=255)public String getDutyType() {    return this.dutyType;}    public void setDutyType(String dutyType) {    this.dutyType = dutyType;}@Column(name="is_leaf", length=10)public String getIsLeaf() {    return this.isLeaf;}    public void setIsLeaf(String isLeaf) {    this.isLeaf = isLeaf;}@Column(name="sub_count", length=10)public Double getSubCount() {    return this.subCount;}    public void setSubCount(Double subCount) {    this.subCount = subCount;}}

测试代码:

package org.ibas.framework.omn.test;import java.util.List;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.cfg.Configuration;import org.ibas.framework.omn.entity.Duty;public class TestSession {@SuppressWarnings("unchecked")public static void main(String[] args) {Configuration config = new Configuration();SessionFactory factory = config.configure().buildSessionFactory();Session session = factory.openSession();String hql = "from Duty";Query query = session.createQuery(hql);List<Duty> deptList = query.list();for (Duty duty : deptList) {System.out.println(duty.getDutyName());}}}

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有人说hibernate的注解jar有问题，但不晓得是不是!

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Hibernate项目架构图:

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希望大家帮帮！谢谢啦