DWR學習筆記

在web.xml中添加代碼：

<!-- 配置DWR -->
    <servlet>
        <servlet-name>dwr-invoker</servlet-name>
        <servlet-class>uk.ltd.getahead.dwr.DWRServlet</servlet-class>
        <init-param>
            <param-name>debug</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param> 
           <param-name>classes</param-name> 
           <param-value>java.lang.Object</param-value> 
        </init-param> 
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dwr-invoker</servlet-name>
        <url-pattern>/dwr/*</url-pattern>
    </servlet-mapping>
在WEB-INF目錄下加入dwr.xml 代碼如下:

<!DOCTYPE dwr PUBLIC 
    "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" 
    "http://www.getahead.ltd.uk/dwr//dwr20.dtd">
<dwr>
    <allow>
        <create creator="spring" javascript="DwrAction" >         <!--方法名稱-->
            <param name="beanName" value="dwrAction"></param> <!--對應applicationContext.xml中bean的名稱-->
        </create>
   
    </allow>
</dwr>
applicationContext.xml中bean的配置如下:

<!-- DWR 配置 -->
    <bean name="dwrdao" class="com.jjq.oa.dao.impl.DwrDaoImpl">
        <property name="hibernateTemplate">
            <ref bean="hibernateTemplate" />
        </property>
    </bean>   
   
    <bean name="dwrAction" class="com.jjq.oa.web.struts.action.DwrAction">
        <property name="dwrdao">
            <ref bean="dwrdao" />
        </property>
    </bean>
action中的代碼如下(DwrAction.JAVA)

/**
*  @creator       季楓
*   @create-time   2009-2-6   下午02:48:07  
*/
package com.jjq.oa.web.struts.action;
 
import java.util.List;
 
import com.jjq.oa.DwrDao;
import com.jjq.oa.dao.po.Activitiestypes;
 
public class DwrAction {
    /**
     *  @creator       季楓
     *   @create-time   2009-2-6   下午02:48:07
     *  @note  
     */
    DwrDao dwrdao;
   
    public void setDwrdao(DwrDao dwrdao) {
        this.dwrdao = dwrdao;
    }
 
    public String [] getActivitiestypes(){
       
        List activitiestypes =dwrdao.activitiestypes();
        
        String result[]= new String[activitiestypes.size() * 2];
        Object [] object=null;
           int b=0;
             for(int i=0,j=0;i<activitiestypes.size();i++){
                 object = (Object [])activitiestypes.get(i);
                 result[j]=((Integer)object[0]).intValue()+"";
                 result[j+1]=(String)object[1];
                 System.out.println(result[j]+"|"+result[j+1]);
                 j=j+2;
                
                
             }
            
        return result;
       
    }
   
   
   
}
介面檔案代碼如下(DwrDao.java):

/**
*  @creator       季楓
*   @create-time   2009-2-6   下午02:51:19  
*/
package com.jjq.oa.dao;
 
import java.util.List;
 
public interface DwrDao {
    /**
     *
     *@author 季楓
     *@create-time   2009-2-6   下午02:52:48
     *@note            活動類別
     */
    public List activitiestypes();
}
Dao的實作類別代碼如下(DwrDaoImpl.java):

/**
*  @creator       季楓
*   @create-time   2009-2-6   下午02:53:27  
*/
package com.jjq.oa.dao.impl;
 
import java.util.List;
 
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
 
import com.jjq.oa.dao.DwrDao;
import com.jjq.oa.dao.po.Activitiestypes;
 
public class DwrDaoImpl extends HibernateDaoSupport implements DwrDao{
 
    public List activitiestypes() {
        /**
         *  @creator       季楓
         *   @create-time   2009-2-6   下午02:53:27
         *  @note  
         */
        List rs = getHibernateTemplate().find("select id,name from Activitiestypes");
       
        return rs;
    }
    /**
     *  @creator       季楓
     *   @create-time   2009-2-6   下午02:53:27
     *  @note  
     */
}
前台JSP調用的代碼如下:

<script>
DwrAction.getActivitiestypes(back);    //活動類別
 
 
 
function back(arr){
alert(arr.length);
var str1="<select><option value=\'999\'>請選擇</option>";
for (i=0,j=1;i<arr.length;i++)
{
str1+="<option value=\'"+arr[i]+"\'>"+arr[j]+"</option>";
j=j+2;
i++;
}
str1+="</select>";
alert(str1);
classid.innerHTML=str1;
}
</script>
閱讀全文
沒事做弄的大開水安排程式
2009-02-05
java
85 views
0
action中的主要代碼如下

public String mklist(){
        String [] name={"廖明焱","張傑","向志勇","陳剛","鄧正超","羅佳","張雲峰","王磊"};
        Date date=new Date();
        date=getPreviousWeekDay(date);
        tdate=new ArrayList<kaishui>();
        for (int i=1,j=0;i<100;i++,j++)
        {
           
            ks=new kaishui();
            date=getNextWeekDay(date);
           
            ks.setDatestr(date.getDate());
            ks.setMon(date.getMonth()+1);
            ks.setYear(date.getYear()+1900);
            ks.setTname(name[j]);
            //System.out.println(date);  
           
            tdate.add(ks);
            if (j==7)
            { 
                j=-1;
            }
           
        }
        //System.out.println(tdate.size());
        return SUCCESS;
    }
 
 
 
 
 
 
 
     public static synchronized java.util.Date getNextWeekDay(Date date )
             {
             
              GregorianCalendar gc = ( GregorianCalendar ) Calendar.getInstance();
              gc.setTime( date );
              switch ( gc.get( Calendar.DAY_OF_WEEK ) )
              {
               case ( Calendar.FRIDAY    ):
                gc.add( Calendar.DATE, 1 );
                break;
               case ( Calendar.SATURDAY    ):
                gc.add( Calendar.DATE, 1 );
                break;
               default:
                gc.add( Calendar.DATE, 1 );
                break;
              }
              //System.out.println(gc);
              return gc.getTime();
             }
     public static synchronized java.util.Date getPreviousWeekDay(Date date){
    
             GregorianCalendar gc = ( GregorianCalendar ) Calendar.getInstance();
              gc.setTime( date );
           
               /**
                * 詳細設計：
                * 1.如果date是星期日，則減3天
                * 2.如果date是星期六，則減2天
                * 3.否則減1天
                */
               switch ( gc.get( Calendar.DAY_OF_WEEK ) )
               {
                case ( Calendar.MONDAY    ):
                 gc.add( Calendar.DATE, -3 );
                 break;
                case ( Calendar.SUNDAY    ):
                 gc.add( Calendar.DATE, -2 );
                 break;
                default:
                 gc.add( Calendar.DATE, -1 );
                 break;
               }
               return gc.getTime();
             
             }
頁面的源碼:

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
   
    <title>My JSP 'user_klist.jsp' starting page</title>
   
   
   
    <link rel="stylesheet" type="text/css" href="../css/users.css">
   
 
  </head>
 
  <body>
    <div class="klist">
        <s:iterator value="tdate"> 
           
       
            <li><s:property value="year"/>年<s:property value="mon"/>月<s:property value="datestr"/>日</li>
            <li>姓名:<s:property value="tname"/></li>
        </s:iterator>   
   
    </div>
  </body>
</html>
CSS檔案源碼：

.klist {width:300px;overflow: hidden;margin-left: 10px;} 
.klist li{float:left;width:148px;overflow: hidden; border:1px #A6C1E8 solid;text-align: center;}