html:select用法的一个例子- -

html:select用法的一个例子- -

                                      

 

model部分：

package com.appeon.manager.form;

 

import java.util.ArrayList;

 

/**

 *网关id、name对Form

 */

publicclass GatewayListForm {

      private ArrayList gatewayList;

      private String gatewayId; 

     

      public String getGatewayId() {

            return gatewayId;

      }

      publicvoid setGatewayId(String gatewayId) {

            this.gatewayId = gatewayId;

      }

      public ArrayList getGatewayList() {

            return gatewayList;

      }

      publicvoid setGatewayList(ArrayList gatewayList) {

            this.gatewayList = gatewayList;

      }

}

 

Action部分：

            // 得到地区代码并填充到指定的form中去

            GatewayListDAO dao = new GatewayListDAO();

            ArrayList list = dao.getGatewayList();

            int length = list.size();

            ArrayList gateways = new ArrayList();

            boolean isFirst = true;

            String gatewayId = "";

           

            for (int i = 0; i < length; i ++) {

                  Object[] gateway = (Object[])list.get(i);

                  gateways.add(new LabelValueBean((String)gateway[1], (String)gateway[0]));

                  if (isFirst) {

                        gatewayId = (String)gateway[0];

                        isFirst =false;

                  }

            }

            GatewayListForm gwForm = new GatewayListForm();

            gwForm.setGatewayList(gateways);

            gwForm.setGatewayId(gatewayId);

            request.setAttribute("gatewayListForm", gwForm);

 

JSP部分：

        <html:select  styleId = "column" name = "gatewayListForm" property = "gatewayId">
         <html:optionsCollection name="gatewayListForm" property="gatewayList"/>
        </html:select>

另一段代码：

          <html:select property="taskIds" multiple="multiple" size="8">
           <html:options collection="taskCollection" property="id" labelProperty="title"  />
          </html:select>