ant hbm 使用

你可以参考：快速修改 xdoclet samples ant -build.xml 适应实际开发
此文档为上面的改进版。

1.在你电脑上建一个 ant第三方扩展文件夹，我这为:D:\ant\lib
2.当使用 eclipse->window->proferences..->ant->Runtime->Global Entries->Add External JARs->选择你建的 ant_lib 下的全部jar;
3.并在Global Entries下加入你的 classpath

使用现成的 xdoclet ant -> 加入自己的 ->

< target name ="hbm2ddl" depends ="prepare" >
           < mkdir dir ="${hbm2ddl.sql.dir}" />
           < taskdef
               name ="hbm2ddl"
             classname ="org.hibernate.tool.ant.HibernateToolTask" >
           </ taskdef >
           < hbm2ddl destdir ="${hbm2ddl.sql.dir}" >
                    < configuration configurationfile ="../src/hibernate.cfg.xml" />
                    < hbm2ddl export ="true" console ="false" create ="false" update ="false" drop ="false" outputfilename ="bestunix.sql" />
           </ hbm2ddl >
           
     </ target >

     < target name ="sql" depends ="hbm2ddl" >

          < sql driver ="org.gjt.mm.mysql.Driver" password =""   userid ="root" autocommit ="true"
                       url ="jdbc:mysql://localhost:3306/zhongqi?characterEncoding=gbk"
                        src ="../sql/data.sql" print ="yes" output ="sql_out.txt" >
               </ sql >
     </ target >

成功后就可以：
    使用 xdoclet 面向对象建表；
    通过 ant -> java2hbn, hbn2ddl,insertSql

在开发过程中当要加 jar 方法为：
    1.在 ant_lib 中加入 jar
    2.eclipse ->> Global Entries->Add External JARs->
工程转换修改 Global Entries中的classpath

例：
java

package hbm;

import java.util.Set;

/**
* @hibernate.class table = "level"
* where = " visible = 0  "
* @author Administrator
*
*/
public class Level {
     private long id ;
     private String name ;
     private Level father ;
     private Set < Level > childSet ;
     private int visible  ;

     public Level(){}
     public Level(String name){   this .name = name ; }

     public Level(String name, int visible){ this .visible = visible;   this .name = name ; }
     /**
     * @hibernate.id generator-class = "identity"
     * @return
      */
     public long getId() {
         return id;
    }
     public void setId( long id) {
         this .id = id;
    }
     /**
     * @hibernate.property
     * length = "20"
     * @return
      */
     public String getName() {
         return name;
    }
     public void setName(String name) {
         this .name = name;
    }

     /**
     * @hibernate.many-to-one
     * cascade = "save-update"
     * inverse = "false"
     * column = "fid"
     * @return
      */
     public Level getFather() {
         return father;
    }
     public void setFather(Level father) {
         this .father = father;
    }

     /**
     * @hibernate.set
     * lazy = "true"
     * table = "Level"
     * cascade = "save-update"
     * where = " visible = 0 "
     * @hibernate.collection-key column = "fid"
     * @hibernate.collection-one-to-many class = "hbm.Level"
     * @return
      */
     public Set < Level > getChildSet() {
         return childSet;
    }
     public void setChildSet(Set < Level > childSet) {
         this .childSet = childSet;
    }

     /**
     * @hibernate.property
     * @return
      */
     public int getVisible() {
         return visible;
    }
     public void setVisible( int visible) {
         this .visible = visible;
    }
}

unit

package test;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

import hbm.Level;

import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.junit.Test;

import unit.HibernateUtil;

public class HbnUnit {
    @Test
     public void level() throws Exception {
        Session session = HibernateUtil.currentSession();
        Transaction tr =   session.beginTransaction();

        Level level = new Level();
        level.setName( " f1 " );

        Set < Level > set = new HashSet < Level > ();
            set.add( new Level( " c1 " ));
            set.add( new Level( " c2 " , 1 ));
            set.add( new Level( " c3 " ));
            set.add( new Level( " c4 " , 1 ));
            set.add( new Level( " c5 " ));
            set.add( new Level( " c6 " , 1 ));

        level.setChildSet(set);
        session.save(level);
        session.flush() ;
        session.clear();
        tr.commit();


    }

    @Test
     public void sAll() throws Exception {
        Session session = HibernateUtil.currentSession();

        System.out.println( " --------------------------------------------- " );
        List < Level > list =   session.createQuery( " from Level tl where tl.father is null " ).list();
         for ( Level tmp : list ){
            System.out.println( " ----> " + tmp.getName() + " visible= " + tmp.getVisible()  );

             for (  Level tt : tmp.getChildSet() ){
                System.out.println( tt.getName() + " visible= " + tt.getVisible()  );
            }

        }
        System.out.println( list.get( 0 ).getVisible() + " : " + list.size() );
    }

}

结果：

Hibernate: insert into level (name, fid, visible) values (?, ?, ?)
Hibernate: insert into level (name, fid, visible) values (?, ?, ?)
Hibernate: insert into level (name, fid, visible) values (?, ?, ?)
Hibernate: insert into level (name, fid, visible) values (?, ?, ?)
Hibernate: insert into level (name, fid, visible) values (?, ?, ?)
Hibernate: insert into level (name, fid, visible) values (?, ?, ?)
Hibernate: insert into level (name, fid, visible) values (?, ?, ?)
Hibernate: update level set fid = ? where id = ?
Hibernate: update level set fid = ? where id = ?
Hibernate: update level set fid = ? where id = ?
Hibernate: update level set fid = ? where id = ?
Hibernate: update level set fid = ? where id = ?
Hibernate: update level set fid = ? where id = ?
-- -------------------------------------------
Hibernate: select level0_.id as id0_, level0_.name as name0_, level0_.fid as fid0_, level0_.visible as visible0_ from level level0_ where ( level0_.visible = 0 ) and (level0_.fid is null )
-- -->f1 visible=0
Hibernate: select childset0_.fid as fid1_, childset0_.id as id1_, childset0_.id as id0_0_, childset0_.name as name0_0_, childset0_.fid as fid0_0_, childset0_.visible as visible0_0_ from level childset0_ where ( childset0_.visible = 0 ) and childset0_.fid = ?
c1 visible = 0
c5 visible = 0
c3 visible = 0
0 : 1

ant hbm 使用

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