以下是两个hibernate映射文件:Activity:<?xml version="1.0" encoding="gb2312"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.ywt.domain">
<class name="Activity" table="activity" lazy="true">
<!-- id元素定义持久化类的标识属性 -->
<id name="id">
<!-- 指定主键生成策略 -->
<generator class="native" />
</id>
<!-- property元素定义常规属性 -->
<property name="name" not-null="true"/>
<property name="time" not-null="true"/>
<property name="imageurl" not-null="true"/>
<property name="hostone" not-null="true"/>
<property name="hosttwo" not-null="true"/>
<property name="introduce" not-null="true"/>
<property name="problem" />
<property name="award" />
<property name="schedule" />
<property name="number" />
<property name="status" not-null="true"/>
<set name="studentSet" table="activity_student" inverse="true">
<key>
<column name="A_ID"></column>
</key>
<many-to-many class="Student" column="S_ID" ></many-to-many>
</set>
</class>
</hibernate-mapping>Student:<?xml version="1.0" encoding="gb2312"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.ywt.domain">
<!-- 每个class元素对应一个持久化对象 lazy="true" 代表加载延迟 对象A对对象B引用才会用到-->
<class name="Student" table="student" lazy="true">
<!-- id元素定义持久化类的标识属性 -->
<id name="id">
<!-- 指定主键生成策略 -->
<generator class="native" />
</id>
<!-- property元素定义常规属性 -->
<property name="username" not-null="true"/>
<property name="password" not-null="true"/>
<property name="name" not-null="true"/>
<property name="sex" not-null="true"/>
<property name="major" not-null="true"/>
<property name="academy" not-null="true"/>
<property name="tel" />
<property name="coin"/>
<property name="activities" />
<property name="honor" />
<set name="activitySet" table="activity_student">
<key>
<column name="S_ID"></column>
</key>
<many-to-many class="Activity" column="A_ID"></many-to-many>
</set>
</class>
</hibernate-mapping>所出现的问题是:只要Activity映射文件中一加set集合就报如下错误(Student映射文件中加set不报错,已确认各属性书写没错误):严重: Servlet.service() for servlet [mvc] in context with path [/dxshdw] threw exception [Handler processing failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class com.ywt.util.HibernateUtil] with root causejava.lang.NoClassDefFoundError: Could not initialize class com.ywt.util.HibernateUtil其中HibernateUtil是获取session工厂的类
添加回答
举报
0/150
提交
取消