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概述
为了提高开发效率，减少重复的页面多次开发，提高系统的可配置性和代码的可复用性，也是为了展示struts、hibernate框架，设计原则是降低显示逻辑和数据的耦合，达到显示逻辑和数据完全分离，即相同的数据使用不同的显示逻辑，无须修改显示逻辑，只需置换不同的显示模版即可。
实现机制
其中Sturts Action是具体的需要调用列表的Action类，TempDataMap类是具体的列表数据的封装类，TempData类是具体的表记录类，即TempDataMap来适配TempData，把表记录适配成我们需要的列表显示类。
调用示例：
Action：
//获取数据库数据
listRowCount = query.findPayItemByParam(paramInfo,paramForm.getPageSize(),paramForm.getPageNo());
list = listRowCount.getList();
//调用列表组件
if(list != null && list.size() > 0)
ColDataMgr mgr = new ColDataMgr(getDataMaps(list));
//获取列表的表列信息，数据信息
ArrayList colMetaInfos = mgr.getColMetaInfos();
ArrayList datas = mgr.getData();
// 将列表信息传到List页面
request.setAttribute(CoreConstant.WEB_DISPLAY_COL_METAT_INFOS_KEY, colMetaInfos);
request.setAttribute(CoreConstant.WEB_DISPLAY_DATAS_KEY, datas);
同样道理，给出的数据可以分发给打印组件和导出excel列表组件，根据列表的列信息和数据信息，导出excel和打印。
具体的map类的内容可参照附件ReceiveItemAmountQueryMap.java文件。
获取显示列信息：
/**
*返回的list中每个元素是列元信息类对象，列元信息类对象包括列名称，列显示名称，
*列显示格式，其中列名称是key
* 导出excel和打印是同样的道理
*/
public ArrayList getColMetaInfos()
{
ArrayList list = new ArrayList();
list.add(new ColMetaInfo("transCode", " 单据编号 ", true, "height=\"20\" align=\"center\" nowrap"));
list.add(new ColMetaInfo("transDate", " 单据日期 ", false, "height=\"20\" align=\"center\" nowrap"));
list.add(new ColMetaInfo("transTypeName", " 业务类型 ", false, "height=\"20\" align=\"left\" nowrap"));
list.add(new ColMetaInfo("receiveOrgName", " 收款单位 ", false, "height=\"20\" align=\"left\" nowrap"));
list.add(new ColMetaInfo("receiveAccountNo", " 收款账户号 ", false, "height=\"20\" align=\"center\" nowrap"));
list.add(new ColMetaInfo("receiveBankName", " 收款银行 ", false, "height=\"20\" align=\"left\" nowrap"));
list.add(new ColMetaInfo("extAccountNo", " 付款账户 ", false, "height=\"20\" align=\"center\" nowrap"));
list.add(new ColMetaInfo("extBankName", " 付款银行 ", false, "height=\"20\" align=\"left\" nowrap"));
list.add(new ColMetaInfo("amount", " 金 额 ", false, "height=\"20\" align=\"right\" nowrap"));
list.add(new ColMetaInfo("memo", " 摘 要 ", false, "height=\"20\" align=\"left\" nowrap"));
return list;
}
//适配数据，根据数据的类型如日期型，装换成需要的字符串形式，金额类数据也转换成相//应的字符串格式，保存到HashMap中。
public HashMap getColData()
{
StringBuffer sb = new StringBuffer("receiveItemAmountQueryAction.do?operation=");
sb.append(CoreConstant.WEB_OPERATION_TYPE_TO_UPDATE_KEY);
sb.append("&id=");
sb.append(String.valueOf(form.getTransApplyItem().getTransApplyID().longValue()));
String link = sb.toString();
HashMap hm = new HashMap();
hm.put("transCode"," "+IDataFormat.formatString(form.getTransCode()));
hm.put("transDate", " "+IDateFormat.toDateString(form.getTransDate()));
hm.put("transTypeName", " "+IDataFormat.formatString(form.getTransTypeName()));
hm.put("receiveOrgName", " "+IDataFormat.formatString(form.getReceiveOrgName()));
hm.put("receiveAccountNo", " "+IDataFormat.formatString(form.getReceiveAccountNo()));
hm.put("receiveBankName", " "+IDataFormat.formatString(form.getReceiveBankName()));
hm.put("extAccountNo", " "+IDataFormat.formatString(form.getTransApplyItem().getExtAccountNo()));
hm.put("extBankName", " "+IDataFormat.formatString(form.getTransApplyItem().getExtBankName()));
if (form.getTransApplyItem().getAmount() != null)
{
String sAmount = " "+IDataFormat.formatDisabledAmount(form.getTransApplyItem().getAmount().doubleValue() );
hm.put("amount", sAmount);
}
else
{
hm.put("amount", "0.00");
}
hm.put("memo", " "+IDataFormat.formatString(form.getTransApplyItem().getMemo()));
hm.put("SUPERLINK", link);
return hm;
}
附录：
DataMap接口：
/**
* @author lijj
*
* To change the template for this generated type comment go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
public interface DataMap {
public ArrayList getColMetaInfos();
public ArrayList getExeclColMetaInfos();
public ArrayList getPrintColMetaInfos();
public ArrayList getColSearchs();
public HashMap getQueryData();
public String getSearchUrl();
public HashMap getColData();
}
抽象实现类DefaultDataMap
import java.util.ArrayList;
import java.util.HashMap;
/**
* @author lijj
*
* To change the template for this generated type comment go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
public abstract class DefaultDataMap implements DataMap{
public abstract ArrayList getColMetaInfos();
public abstract HashMap getColData();
public ArrayList getExeclColMetaInfos()
{
return new ArrayList();
}
public ArrayList getPrintColMetaInfos()
{
return new ArrayList();
}
public String getSearchUrl()
{
return null;
}
public HashMap getQueryData()
{
return null;
}
public ArrayList getColSearchs()
{
ArrayList retList = new ArrayList();
return retList;
}
}
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