先说我的机器配置
     p43.0 超线程 1G 内存
    winxp　＋jdk１.５＋junit＋spring＋hiberate２.１＋eclipse３.１１
　　
　　我的数据关系
　　cate 和video是多对多的双向关系
　　按照hibanete做法我引入了cate-video对象和表
   　video和comment是一对多的双向关系；
　　我hbm　文件如下
　　video.hbm.xml
　

　<?xml version="1.0" encoding="UTF-8"?>

　　<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

　　<hibernate-mapping>
    <class
        name="com.letdoo.video.model.Video"
        table="t_videolib_video"
    >
   

        <id
            name="id"
            column="id"
            type="string"
            length="32"
            unsaved-value="null"
        >
            <generator class="uuid.hex">
            </generator>
        </id>

        <property
            name="name"
            type="string"
            update="true"
            insert="true"
            column="name"
            length="50"
        />
        <set 
        name="videoLibComment"
        table="t_videoLib_comment"
        cascade="all-delete-orphan"
        outer-join="true"
        >
        <key column="videoId" />
        <one-to-many class="com.letdoo.video.model.VideoLibComment" />
        </set>
        
        <set name="videoLibRCateVideo" 
         lazy="true"
         inverse="true" 
         cascade="all-delete-orphan"
         outer-join="true">
        <key column="videoId" />
        <one-to-many  class="com.letdoo.video.model.VideoLibRCateVideo" />
     </set>
       
       
     </class>




cate.hbm.xml
</hibernate-mapping>
  VideoLibCategroy.hbm.xml
 <!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">


<hibernate-mapping
>
    <class
        name="com.letdoo.video.model.VideoLibCategroy"
        table="t_videoLib_category"
       
    >
    

        <id
            name="id"
            column="id"
            type="java.lang.String"
            length="32"
            unsaved-value="null"
             >
            <generator class="uuid.hex">
            </generator>
        </id>

        <property
            name="name"
            type="java.lang.String"
            update="true"
            insert="true"
            column="name"
            length="50"
        />
        
     <set name="videoLibRCateVideo" 
     lazy="true"
      inverse="true"
       cascade="all-delete-orphan"
       outer-join="true">
        <key column="cateId" />
        <one-to-many  class="com.letdoo.video.model.VideoLibRCateVideo" />
     </set>
     
  </class>

</hibernate-mapping>

cate_video.hbm.xml
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">


<hibernate-mapping>
   <class name="com.letdoo.video.model.VideoLibRCateVideo" table="t_videoLib_rcatevideo" >
     
    <id
            name="id"
            column="id"
            type="string"
            length="32"
            unsaved-value="null"
        >
            <generator class="uuid.hex">
            </generator>
        </id>
      
    <many-to-one 
    name="videoLibCategroy"
     column="cateId" 
     class="com.letdoo.video.model.VideoLibCategroy"
    
      not-null="true" />
    <many-to-one 
    name="video"
    column="videoId"
    class="com.letdoo.video.model.Video" 
    
    not-null="true" />
   </class>

</hibernate-mapping>

comment.hbm.xml

<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">


<hibernate-mapping
>
    <class
        name="com.letdoo.video.model.VideoLibComment"
        table="t_videoLib_comment"
    >
     
        <id
            name="id"
            column="id"
            type="string"
            length="32"
            unsaved-value="null"
        >
            <generator class="uuid.hex">
            </generator>
        </id>
        <!-- many-to-one VideoLibComment to VideoLibVideo--> 
        <property
            name="title"
            type="string"
            update="true"
            insert="true"
            column="title"
            length="200"
        />
       
        <many-to-one 
             name="video"
             column="videoId"
             class="com.letdoo.video.model.Video"
             cascade="save-update"
             outer-join="true"
        />   
       
      </class>

</hibernate-mapping>
　　package test;
import com.letdoo.pic.base.*;

import junit.framework.TestCase;
import java.util.*;

import com.letdoo.video.dao.*;
import com.letdoo.video.model.*;
public class VideoDaoTest extends TestCase {

	
	private  VideoDao  videoDao;
	private  VideoLibCategroyDao  videoL

yDao;
static {
ApplicationContextFactory.init("/com/letdoo/video/dao/applicationContext-hibernate.xml");
}
public static void main(String[] args) {
junit.swingui.TestRunner.run(VideoDaoTest.class);
}

public VideoDaoTest(String arg0) {
super(arg0);
}

protected void setUp() throws Exception {
videoDao=(VideoDao)ApplicationContextFactory.getApplicationContext().getBean("videoDao");
videoLibCategroyDao=(VideoLibCategroyDao)ApplicationContextFactory.getApplicationContext().getBean("videoLibCategroyDao");  
super.setUp();
}

protected void tearDown() throws Exception {
super.tearDown();
}

/*
* “com.letdoo.video.dao.VideoDao.addVideo(Video)”的测试方法
*/
    
public void testAddVideo() {

Date date=new Date();
VideoLibCategroy vv=videoLibCategroyDao.findVideoLibCategroyById("4028826b0a8ce70d010a8ce710be0001");
Video v=new Video();
v.setCreateTime(date);
v.setName("haohao");
    VideoLibRCateVideo vr=new VideoLibRCateVideo();
    vr.setVideo(v);
    vr.setVideoLibCategroy(vv);
    v.getVideoLibRCateVideo().add(vr);
    videoDao.addVideo(v);


}

}


当测试执行的时候花了近１００秒的时间：
请问这是为什么