Hibernate 中使用了meger()保存一次正常，第二次一直等着

Question

hibernatesavemerge停止响应第二次

Answer 1

reservation xml
<many-to-one name="doctor"  lazy="false" class="org.onlinehospital.vo.Doctor" 
                                 fetch="select"  cascade="all"> 
            <column name="doc_id" not-null="false"/> 
        </many-to-one>
        <many-to-one name="user"  lazy="false" class="org.onlinehospital.vo.User" 
                                 fetch="select"  cascade="all"> 
            <column name="user_identity" not-null="false"/> 
        </many-to-one>doctor xml
<set name="reservation" inverse="true" lazy="false" cascade="all">
              <key column="doc_id" not-null="true"/>
              <one-to-many class="org.onlinehospital.vo.Reservation" />
        </set>
user xml
<set name="reservation" inverse="true" lazy="false" cascade="all">
              <key column="user_identity" not-null="true"/>
              <one-to-many class="org.onlinehospital.vo.Reservation" />
        </set>
省略其他的参数了！