iBatis为业务对象添加可分页方法，扩展方法，调用Oracle

以活动日志为例，打开Persistence 项目

在 interface IActionLogDao

添加接口定义

/// <summary>
/// 根据可用标记获取所有的日志信息(分页)
/// </summary>
/// <returns></returns>
List<ActionLog> GetActionLogListByActivity(ActionLog al, int start, int limit);

在ActionLogDao 中实现这个方法

/// <summary>
/// 根据可用标记获取所有的日志信息(分页)
/// </summary>
/// <returns></returns>
public List<ActionLog> GetActionLogListByActivity(ActionLog al, int start, int limit)
{
try
{
Hashtable ht = new Hashtable();
ht.Add("obj", al);
ht.Add("start", start * limit + 1);
ht.Add("end", start * limit + limit);
return base.ExecuteQueryForList<ActionLog>("ActionLog.FindAllByObjectForPage", ht) as List<ActionLog>;
}
catch (Exception)
{
throw;
}
}

Services项目中使用

public DataPageInfo GetActionLogListForPageData(ActionLog al, int start, int limit)
{

DataPageInfo obj = new DataPageInfo();
obj.DataList = base.Change2ArrayList<ActionLog>(ActionLogDao.GetActionLogListByActivity(al, start, limit));
obj.SumNum = ActionLogDao.GetSumActionLogListByActivity(al);
return obj;
}

SqlMap 的XML 要加方法的SQL配置

 

<select id="ActionLog.FindAllByObjectForPage" parameterClass="System.Collections.IDictionary" resultMap="ActionLog_result">
SELECT * FROM (SELECT ROWNUM RN, t_t.* FROM (select * from SYS_ACTION_LOG where 1=1

<!--<isNotEmpty prepend="and" property="UserId">
USER_ID like '%$obj.UserId$%'
</isNotEmpty>
<isGreaterThan prepend="and" property="LoginTime" compareValue="1900-01-01">
LOGIN_TIME = #obj.LoginTime#
</isGreaterThan>
<isNotEmpty prepend="and" property="Action">
ACTION like '%$obj.Action$%'
</isNotEmpty>
<isNotEmpty prepend="and" property="UserName">
USER_NAME like '%$obj.UserName$%'
</isNotEmpty>
<isNotEmpty prepend="and" property="UserAttribute">
USER_ATTRIBUTE like '%$obj.UserAttribute$%'
</isNotEmpty>-->
order by SYS_ACTION_LOG.Id desc) t_t WHERE
<![CDATA[  ROWNUM <= #end# ]]>
)
<![CDATA[  WHERE RN >= #start# ]]>
</select>

注意，每次调试都要关闭Asp.Net 调试器

 

扩展一个方法，扩展一个PO，获得其中的外联表结果集合

在PO里面扩展Combo类，添加一个列表成员

 

/// <summary>
/// 套餐代理商列表
/// </summary>
private List<StoComboAgent> stoComboAgentList;
/// <summary>
/// 套餐代理商列表
/// </summary>
private List<StoComboAgent> StoComboAgentList
{
get { return stoComboAgentList; }
set { stoComboAgentList = value; }
}

修改该 SQLMap 的XML配置信息

先修改该子表StoComboAgent的配置

<select id="StoComboAgent.FindByComboId" parameterClass="int" resultMap="StoComboAgent_result" extends="StoComboAgent.FindAll">
WHERE (sto_combo_agent.combo_id = #value#)
</select>

然后再为Combo的XML文件中添加如下配置

<result property="StoComboAgentList" column="ID" select="StoComboAgent.FindByComboId"/>

添加新属性

先在PO的对象中添加属性

/// <summary>
/// 上线时间
/// </summary>
private DateTime startupTime;
/// <summary>
/// 上线时间
/// </summary>
public DateTime StartupTime
{
get { return startupTime; }
set { startupTime = value; }
}

修改该SQLMap的对应内容

添加

<result property="StartupTime" column="Startup_Time"/>

再每个操作配置中都要加入这个属性

,startup_time