InvalidMappingException提示Could not parse mapping document错误的解决方法

 

org.hibernate.InvalidMappingException: Could not parse mapping document from resource …(错误的xml文件)

出现这样的错误一般是映射文件中映射出错了，找到错误提示resource 后面提示的xml文件，对应POJO对象逐个检查，看是否遗漏了某些属性的配置，或者写错了。

举个例子：

package com.exam.entity;
import java.util.Set;
public class SubjectChapter {
  private int chapterId;
  private String chapterName;
  private Subject subject;
  private int chapterNum;
  private Set question;
  public int getChapterId() {
    return chapterId;
  }
  public void setChapterId(int chapterId) {
    this.chapterId = chapterId;
  }
  public String getChapterName() {
    return chapterName;
  }
  public void setChapterName(String chapterName) {
    this.chapterName = chapterName;
  }
  public Subject getSubject() {
    return subject;
  }
  public void setSubject(Subject subject) {
    this.subject = subject;
  }
  public int getChapterNum() {
    return chapterNum;
  }
  public void setChapterNum(int chapterNum) {
    this.chapterNum = chapterNum;
  }
  public Set getQuestion() {
    return question;
  }
  public void setQuestion(Set question) {
    this.question = question;
  }
}

<hibernate-mapping package="com.exam.entity">
  <class name="SubjectChapter" table="exam_subject_chapter">
    <id name="chapterId" column="chapter_id">
      <generator class="increment" />
    </id>
    <property name="chapterName" column="chapter_name"/>
    <many-to-one name="subject" column="subject_id" cascade="all"/>
    <property name="chapterNum" column="chapter_num"/>
    <set name="question" inverse="true">
      <key column="subject_chapter_id"/>
      <one-to-many class="Question"/>
    </set>

  </class>
</hibernate-mapping>

这里原本少写了chapterNum的映射，导致该错误的出现。