亚洲人成网亚洲欧洲无码,国产成+人+综合+亚洲专,亚洲精品视频在线观看你懂的

原创��框�? 动态面向对象数据库操作(不要影射�c�d��)

G_G — Fri, 21 Sep 2007 06:46:00 GMT

BUG修订 09-21 15:44
旉��c�M��能Update 问题 (如果在上面时间前下蝲那请从新下蝲)

在上一版本有大改动自用��框�?DB工厂
         1. ��d�� jdbc 事物
         2. �l�构更合�?br />         3. 速度加快

工具��单说�?/font>
      ��q�� DB 影射�?java 数据�c?,动态在内存中生�?动态数据类 ( 使用BeanUtils的DyanBean�c��?      .
      操作DB 面向对象操作(当然是动态^_^)
      ��Z��更实�?我用了张 50多属性的大表�q�行��试.阅读��h��可能有点困难,希望大家��h��.
version
   jdk 1.4

下蝲
      DyanDBUtils.rar

包文件说�?:
         Config : JDBC 需要的驱动密码�{?
         DBResources :   �Ҏ(gu��)��Config�l�出 Connection , PreparedStatement
         DynaClass : �Ҏ(gu��)��元数�?�?table �l�出动态BasicDynaClass
         SQLSpelling : �l�出 sql 语句�?sql语句�?? 的值�?格式�?List : lise.get(0)为sql语句后其他�ؓ(f��)值 �?br />         DyanDBUtils.java : 为本Util主要入口�?也是�q�行�?br />
数据库表 z_jcyy_basepersonnel
      �?3个属性�?什么类型都�?
      4 个不为空属�?personid , workno , depotid , hname

��试

package DyanDBUtils.test;

import java.util.Iterator;

import org.apache.commons.beanutils.BeanUtils;

import DyanDBUtils.DyanDBUtils;
import junit.framework.TestCase;

public class testUtil extends TestCase {
     static private DyanDBUtils dyd =   DyanDBUtils.getDyanDBUtil() ;
     static private Object obj = null ;
    //SELECT
     public void testSelete() throws Exception{
        dyd.setIsShowSQL( true );
         for (Iterator it = dyd.select( " select t.*, t.rowid from z_jcyy_basepersonnel t where t.personid = '0301003719' " ).iterator();
                    it.hasNext();){
            Object obj = it.next();
        }
    }
    //INSERT
     public void testInsert() throws Exception{
        obj = dyd.getDyanDBBean( " z_jcyy_basepersonnel " );
            BeanUtils.setProperty(obj, " personid " , " 1000 " );
            BeanUtils.setProperty(obj, " workno " , " 2000 " );
            BeanUtils.setProperty(obj, " depotid " , " 300 " );
            BeanUtils.setProperty(obj, " hname " , " 刘凯�?/span> " );
        dyd.insert(obj);   //INSERT
    }

   //UPDATE
     public void testUpdate() throws Exception{
        BeanUtils.setProperty(obj, " hname " , " 思�?. " );
        dyd.updateOrInsert(obj); //UPDATE
    }
//DELECT
     public void testDelete() throws Exception{
        dyd.delete(obj);//DELECT
        System.out.println( " ****************************************** " );
    }

     public void testCommit() throws Exception{
        dyd.openCommit() ;
        Object obj = dyd.select( " select t.*, t.rowid from z_jcyy_basepersonnel t where t.personid ='0301003719' " ).get( 0 );

        BeanUtils.setProperty(obj, " hname " , " 刘凯�?/span> " );
        dyd.updateOrInsert(obj);

        BeanUtils.setProperty(obj, " workno " , null ); // 不可为空
        dyd.updateOrInsert(obj);

        dyd.colseCommit();
        testSelete();
    }

}

��试��试�l�果 (注意: 开头的李家�?/font> 3719 和后面的 3719 没变 ��是事物的结�?/font>)

李家��?/span> 3719
insert into z_jcyy_basepersonnel( depotid,drivekm,hname,hundreds,personid,resbaseknowledge,rescheck,resctrl,resproknowledge,ressaferules,roomarea,safekm,status,workno) values ( ?,?,?,?,?,?,?,?,?,?,?,?,?,?)
//刘凯毅�?font style="BACKGROUND-COLOR: #eeeeee">2000   print insert
// 思�?. 2000     print update
delete from z_jcyy_basepersonnel where 1 = 1    and personid = ?
******************************************
delete from z_jcyy_basepersonnel where 1 = 1    and personid = ?
insert into z_jcyy_basepersonnel( beginworktime,depotid,deptid,dob,drivekm,drivelocotype,dynamicinfo,dynamicinfo2,dynamicinfo3,eductionlevel,folk,hname,hundreds,marrystatus,minordriveno,nativeplace,personid,political,postid,promoteminordriverdate,resbaseknowledge,rescheck,resctrl,resproknowledge,ressaferules,roomarea,safebeginday,safekm,sex,status,techniclevel,workno) values ( ?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
delete from z_jcyy_basepersonnel where 1 = 1    and personid = ?
insert into z_jcyy_basepersonnel( beginworktime,depotid,deptid,dob,drivekm,drivelocotype,dynamicinfo,dynamicinfo2,dynamicinfo3,eductionlevel,folk,hname,hundreds,marrystatus,minordriveno,nativeplace,personid,political,postid,promoteminordriverdate,resbaseknowledge,rescheck,resctrl,resproknowledge,ressaferules,roomarea,safebeginday,safekm,sex,status,techniclevel) values ( ?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
java.sql.SQLException: ORA - 01400 : 无法��?/span> NULL 插入 ("JCYY"."Z_JCYY_BASEPERSONNEL"."WORKNO") //事物�q�行良好 �?/font>

李家��?/span>3719

�ȝ��
事物解决�?�q�有多表问题大家多给炚w��励哦 ^_^

G_G 2007-09-21 14:46 发表评论

自用��框�?DB工厂

G_G — Wed, 19 Sep 2007 03:41:00 GMT

BUG 修改 :
09-20   因�ؓ(f��) Oracle  取元数据的字�W�串需�?font color="#0000ff">大写至修改�ƈ下蝲更新
��试使用�?br />      ID                           SN   STATIONNAME          SPELL      DEPOTID
      -------------- ---- -------------------- ---------- ------- ------------------
      08050000390689    3     永安                             ya                ....
版本升��
09-21 DyanDBUtils 动态面向对象数据库操作

�׃�� hibernate �q�要table影射成class �q�好处和坏处只有我们�E�序员知道了
        只要修改数据库就大量影射附加工作要做 ,有时影射�q�有BUG弄的我们@#$%!.....(哈hibernate我是��鸟^_^),�?---不要----影射 , 没有他们数据库就又回到jdbc.本�h比较喜欢��h�� 哈哈自己来个��框架吧( ��?00来行的代码有兴趣的看看哦 )!!!

用到技�?br />     BeanUtil , JDBC元数�?在这我可是好好看了下JDBC,其实他是很强的东�?大家应该好好用用^_^)
下蝲DBFactory.rar
DBFactroy
数据�?
+----+-------+-------------+------------+
| id | title | description | buydate    |
+----+-------+-------------+------------+
| 6 | tt    | asdgwgw     | 1990-12-02 |
+----+-------+-------------+------------+

先看看测试吧

public class testNotKonw extends TestCase {

    protected void setUp() throws Exception {
       //�q�行 sql 可见
        DBFactory.getTools().setIsShowSql(DBFactory.SHOW);
        super.setUp();
    }
    public void testDelete()throws Exception{
         // select 出来 ��q�� List �?DynaBean : id , title ..... �c�d�� , 和值都有了
        for(Iterator it = DBFactory.getTools().select("select * from books").iterator();it.hasNext();){
            // 那就是delete : 目的是测试前删除全部数据
            DBFactory.getTools().delete(it.next());
        }
    }

      public void testInsert()throws Exception{
        // insert 要先new出来�?table->bean  再添属�?
        Object obj = DBFactory.getTools().getDynaTableClass("books").newInstance();
        BeanUtils.setProperty(obj,"id","6");
        BeanUtils.setProperty(obj,"title","tt");
        BeanUtils.setProperty(obj,"description","asdgwgw");
        BeanUtils.setProperty(obj,"buydate",new Date());
       //�q�几�?insert �?(��单吧)
        DBFactory.getTools().insert(obj);
    }

    // update
    public void testUpdate()throws Exception{
        for(Iterator it = DBFactory.getTools().select("select * from books").iterator();it.hasNext();){
            Object obj = it.next();
            BeanUtils.setProperty(obj,"buydate",new Date(90,11,2));
            DBFactory.getTools().update(obj);
        }
    }
}

控制台输�?/font>
//testDelete
delete from books where 1=1 and id=6
//testInsert
insert into books(id,title,description,buydate) values( 6,'tt','asdgwgw','2007-09-19')
//testUpdate
delete from books where 1=1 and id=6
insert into books(id,title,description,buydate) values( 6,'tt','asdgwgw','1990-12-02')

代码关键说明:
关键在BeanUtil �?DnayBean�?我通过元数�?得到�?�q�个Bean 属�?属性类�?�q�有表信息放�?getClass();的字�W�串�?br /> EG: table=...;key=..,..,..;columns=...,..,; 后在insert , delet , update��是(先delete后insert^_^) 中解析得�?动态写sql语句
更�D DnayBean中属性类型看�?Bean value 是否要加 ' value ' �q�是直接 value 到sql �?br />

    public  BasicDynaClass getDynaTableClass(String table){
        Connection conn = getConn() ;
        List props = new ArrayList();
        DatabaseMetaData dm = null ;
        BasicDynaClass dynaClass = null ;
        try {
            dm = conn.getMetaData();
            ResultSet coulumns = dm.getColumns(null,null,table,null);
            while(coulumns.next()){
               //元数据中得到 �c�d��做 DynaBean 属性 �?coulumns.getInt("DATA_TYPE") 是�?java.sql.Types.XXXXX
                props.add(new DynaProperty( coulumns.getString("COLUMN_NAME"),getStrClass(coulumns.getInt("DATA_TYPE"))) );
            }
            // all : table
            //delete : column_name column_value
            //insert : column_name
            StringBuffer sb = new StringBuffer();
            sb.append("table=").append(table).append(";");

            sb.append("keys=");
                ResultSet keys = dm.getPrimaryKeys(null,null,table);
                while(keys.next()){
                    sb.append( keys.getString("column_name")).append(",");
                }
                sb.replace(sb.length()-1,sb.length(),";");

            sb.append("columns=");
                ResultSet couls = dm.getColumns(null,null,table,null);
                while(couls.next()){
                    sb.append( couls.getString("column_name")).append(",");
                }
                sb.replace(sb.length()-1,sb.length(),";");

            //�?Class name <- sb.toString()
            dynaClass = new BasicDynaClass(sb.toString() , null,
                    (DynaProperty[])props.toArray(new DynaProperty[]{}) );
        } catch (Exception e) {e.printStackTrace();}
        finally{
            try {
                conn.close() ;
            } catch (SQLException e) {e.printStackTrace();}
        }
        return dynaClass ;
    }

insert , delete 差不�?��来insert

    public boolean insert(Object obj){
        String sqlstrat = "insert into ";
        String sqldo = " values( ";
        String sqlend = ")";
        String sql = "";
        boolean od = false ;

        Connection conn = getConn() ;
        Statement sta = null ;
        try {
             //解析getDynaClass().getName() 得到 table
            sqlstrat += getTableConfig(obj,"table")[0]+"(" ;

             //解析getDynaClass().getName() 得到 columns
            String[] cols = getTableConfig(obj,"columns");
            for(int i=0;i<cols.length;i++){
                sqlstrat += cols[i]  +",";
                sqldo += getSqlAtt(obj,cols[i] )+",";
            }
            sql = sqlstrat.substring(0,sqlstrat.length()-1)+")"+sqldo.substring(0,sqldo.length()-1)+sqlend;
            sta = conn.createStatement();
            if( sta.executeUpdate(sql)>0){od = true;};
        } catch (Exception e) {e.printStackTrace();}
        finally{
            try {
                if( isShowSql==SHOW ) {System.out.println();System.out.println(sql);}
                conn.close();
            } catch (SQLException e) {e.printStackTrace();}
        }
        return od ;
    }

��结:
当然表连和多�?�?/font> 是没问题�?br />但在多表 delete , update ��p��没有完成 (蛮难�?5555 �q�有没时�?
单表�?delete update ,select,insert 都完成了我会(x��)努力�?
大家要是认�ؓ(f��)�q�可�?帮忙��脓(chu��ng) �?我会(x��)都都完善�?br />

G_G 2007-09-19 11:41 发表评论

jdbc 半自动填�?javabean (在大�?hbm 慢速度可以使用)

G_G — Thu, 26 Apr 2007 10:18:00 GMT

代码上了 ----

            Collection list = new ArrayList();
            ApplicationsBean applications = null;
            ResultSet rs=null;
            DBConn db=null;

            try {
                db=new DBConn();

          String sql = "select * from (select rownum row_id,b.* from (select a.* from jcyy.vbasepersonnel a)b) where row_id between "+sta+" and "+end;

          rs=db.executeQuery(sql);
          ResultSetMetaData md = rs.getMetaData() ;
          int col = md.getColumnCount() ;

          int[] type = new int[col+1];
          for(int i=1;i<=col;i++){
              type[i] = md.getColumnType(i);
          }
          String[] colNames = new String[col+1];
          for(int i=1;i<=col;i++){
              colNames[i-1] = md.getColumnName(i).trim();
          }

          Hashtable map = new Hashtable();
          Method[] mes =  Vbasepersonnel.class.getMethods() ;
              for(int i=0; i<mes.length;i++){
                String setName = mes[i].getName().trim();
                if(setName.indexOf("set")==0){
                    String name = setName.substring(3,setName.length()).toUpperCase();
                    map.put(name,mes[i]);
                }
            }



                  while (rs.next()) {
                      Vbasepersonnel vb = new Vbasepersonnel();

                      for(int i=1;i<=col;i++){

                          if(colNames[i] == null) continue ;//个别的可另拿出来 if colNames == NN  ->  rs.getXXXX()

                          Method me = (Method)map.get( colNames[i] );
                          if(me != null){
                              try{
                              if(type[i]==java.sql.Types.DATE)    me.invoke(vb,new Object[]{rs.getDate(colNames[i])});
                              if(type[i]==java.sql.Types.INTEGER)    me.invoke(vb,new Object[]{new Integer(rs.getInt(colNames[i]))});
                              //if(type[i]==java.sql.Types.BIGINT)    me.invoke(vb,new Object[]{rs.getBigDecimal(colNames[i])});
                              if(type[i]==java.sql.Types.DOUBLE)    me.invoke(vb,new Object[]{new Double(rs.getDouble(colNames[i]))});
                              if(type[i]==java.sql.Types.FLOAT)    me.invoke(vb,new Object[]{new Float(rs.getFloat(colNames[i]))});
                              if(type[i]==java.sql.Types.BOOLEAN)    me.invoke(vb,new Object[]{new Boolean(rs.getBoolean(colNames[i]))});
                              if(type[i]==java.sql.Types.LONGVARBINARY)    me.invoke(vb,new Object[]{new Long(rs.getLong(colNames[i]))});
                              if(type[i]==java.sql.Types.BOOLEAN)     me.invoke(vb,new Object[]{new Boolean(rs.getBoolean(colNames[i]))});

                              else    me.invoke(vb,new Object[]{rs.getObject(colNames[i])});
                              }catch(Exception ex){
                                  System.out.println(colNames[i]+"XX"+type[i]);
                                  colNames[i] = null ;
                              }
                          }
                      }

                      list.add(vb);
                }

G_G 2007-04-26 18:18 发表评论

亚洲人成网亚洲欧洲无码,国产成+人+综合+亚洲专,亚洲精品视频在线观看你懂的

原创���框�? 动态面向对象数据库操作(不要影射�c�d��)

自用���框�?DB工厂

jdbc 半自动填�?javabean (在大�?hbm 慢速度可以使用)

原创��框�? 动态面向对象数据库操作(不要影射�c�d��)

自用��框�?DB工厂