动态建表(2) bean[] 直接到建表 (扩展也很好)

问题: 提供简单 java 和 javascript API
解决: 对 hbm 得到的 bean[] 自动生成 xml    public void addXml(String tableName,String idName,Object[] bean){
                                                  格式 <tableName>       //主键是IdName
                                                                  <row id=' idValue '> ........ </row>
                                                                   .........
                                                            <tableName>

Action
      说明
         1.  dao.addXml( " liu " , " ID " ,dao.getSelect());   //向xml 内添加 liu 表信息   主键 ID    bean[] 由hbm 提供
          2. dao.getXml(); //这里的主要意思是把 bean[] 变成 xml (反射)就可以与表无关性了

package com.yourcompany.struts.action;

import java.io.UnsupportedEncodingException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.dao.Dao;
import com.yourcompany.struts.form.TestForm;

/** */ /**
* MyEclipse Struts
* Creation date: 06-05-2007
*
* XDoclet definition:
* @struts.action path="/test" name="testForm" input="/form/test.jsp" scope="request"
*/
public class TestAction extends Action {

    public ActionForward execute(
        ActionMapping mapping,
        ActionForm form,
        HttpServletRequest request,
        HttpServletResponse response) {
        Dao dao = new Dao();
        dao.addXml("liu","ID",dao.getSelect());
        try {
                 response.setContentType("text/xml;charset=utf-8");
                response.addHeader("Cache-Control","no-cache");          //关键句要不不刷新问题会郁闷哈哈
            request.setCharacterEncoding("gb2312");
            response.setCharacterEncoding("gb2312");
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        request.setAttribute("xml",dao.getXml());
        System.out.println(dao.getXml());
        return mapping.findForward("list") ;
    }

}

test.jsp
   就简单的
<%
response.setContentType("text/xml;charset=utf-8");
response.addHeader("Cache-Control","no-cache");
%>
<%=(String)request.getAttribute("xml")%>
转送 xml

关键页面
   功能为可以实现.........
   1 .    var table_1 = CreateTable(request.responseText, " liu " , my_array,myTitle);            //CreateTable.js
            就简单建表以名字为 liu 的表
            并显示 my_array 几列
            后是表头
   与表的无关性在 xml 上展现的没话说 ................

   2. 后扩展也是简单的 javascript

< html >

   < head >
     < title > MyHtml.html </ title >
           < SCRIPT language ="Javascript" src ="prototype1.5.0.js" ></ SCRIPT >
           < SCRIPT language ="Javascript" src ="CreateTable.js" ></ SCRIPT >
       </ head >

       < body >
         < input id ='test' type ="submit" value ="test" onclick ="searchSales();" >
     </ body >
</ html >

< script type ="text/javascript" >

</ script >

下面是支持类
1. java 方面
Dao.java

package com.dao;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.Transaction;

import com.HibernateSessionFactory;
import com.bean.Xmltest;

public class Dao {
    StringBuffer str = new StringBuffer(); {
        str.append("<?xml version='1.0' encoding='gb2312'?>").append("\n");
        str.append("<tables>").append("\n");
    }
    public Xmltest[] getSelect(){
    Session sess = HibernateSessionFactory.currentSession();
    List list = null ;

    try {
        Transaction tr = sess.beginTransaction() ;

        Criteria cr =  sess.createCriteria(Xmltest.class);
        list = cr.list();
        tr.commit();
    } catch (Exception e) {}
    finally{
        HibernateSessionFactory.closeSession();
    }

        return (Xmltest[])list.toArray(new Xmltest[0]) ;
    }

    public void addXml(String tableName,String idName,Object[] obj){

        Hashtable m1  =   new  Hashtable();
        Hashtable m2 = new Hashtable();

        str.append("<").append(tableName).append(">").append("\n");

        // 取出类一的 set 方法
        Method[] me1  =  obj[0].getClass().getMethods() ;
        for ( int  j = 0 ;j < me1.length;j ++ )  {
           String name  =  me1[j].getName() ;
            if ( name.indexOf("set") == 0  )  {
               String Att  =  (name.substring( 3 ,name.length())).toUpperCase();
               m1.put(Att,me1[j]);
           }
       }

        Method[] me2  =   obj[0].getClass().getMethods() ;
        for ( int  i = 0 ;i < me2.length;i ++ )  {
           String name  =  me2[i].getName() ;
            if ( name.indexOf( "get" ) == 0  )  {
               String Att  =  (name.substring( 3 ,name.length())).toUpperCase();
               if( m1.get(Att)!= null  )
                   m2.put( Att,me2[i]);
           }
       }

        try {
        for(int i=0;i<obj.length;i++){
            str.append("<row id='").append( ((Method)m2.get(idName)).invoke(obj[i],null)+"" ).append("'>").append("\n");
            for( Enumeration en = m2.keys();en.hasMoreElements();){
                String name = (String)en.nextElement();
                Method me = (Method) m2.get(name);
                str.append("<").append(name).append(">") ;
                    str.append( me.invoke(obj[i],null) );
                    str.append("</").append(name).append(">").append("\n") ;
            }
            str.append("</row>").append("\n");
        }
        } catch (Exception e) {System.out.println(e);}

        str.append("</").append(tableName).append(">").append("\n");

    }

    public String getXml(){
        str.append("</tables>").append("\n");
        return str.toString();
    }
}

javascript 支持方面

下载
注意 lib 中 *.jar 包没有可以看 .classpath 文件自己配
http://www.blogjava.net/Files/Good-Game/xxs.rar

动态建表(2) bean[] 直接到建表 (扩展也很好)

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