public class JgcsService : IHttpHandler
{
readonly int pageSize = 15;
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
//不让浏览器缓存
context.Response.Buffer = true;
context.Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
context.Response.AddHeader("pragma", "no-cache");
context.Response.AddHeader("cache-control", "");
context.Response.CacheControl = "no-cache";
string result = "";
//记录总条数
if (!string.IsNullOrEmpty(context.Request["whereCount"]))
{
string where = context.Request.Params["whereCount"].ToString();
result = Jgcs.GetToatlNum(where).ToString();
}
//总页数
if (!string.IsNullOrEmpty(context.Request["wherePageCount"]))
{
string where = context.Request.Params["wherePageCount"].ToString();
int count = Jgcs.GetToatlNum(where);
string pageCount = Math.Ceiling((double)count / (double)pageSize).ToString();
result = pageCount;
}
//分页数据
if (!string.IsNullOrEmpty(context.Request.Params["pageIndex"])
&& !string.IsNullOrEmpty(context.Request.Params["where"]))
{
string where = context.Request.Params["where"].ToString();
int pageIndex = Convert.ToInt32(context.Request.Params["pageIndex"]);
result = GetJsonString(where, pageIndex);
}
context.Response.Write(result);
}
/// <summary>
/// 返回json串
/// </summary>
/// <param>查询条件</param>
/// <param>页面索引</param>
/// <returns>json串</returns>
protected string GetJsonString(string where, int pageIndex)
{
DataTable dt = Jgcs.GetInfo("csbh", where, pageIndex, pageSize);
return JsonHelper.DataTable2Json(dt, "table");
}
public bool IsReusable
{
get
{
return false;
}
}
}

4、分页查询的方法可看可不看了，都会这个吧，做示例简单的开了个头，应用时在处理方面可不要这么去写噢，贴下来仅做一个参考
分页方法

复制代码 代码如下:

/// <summary>
/// 分页查询的方法
/// </summary>
/// <param>排序字段</param>
/// <param>查询条件</param>
/// <param>当前页</param>
/// <param>页大小</param>
/// <returns></returns>
public static DataTable GetInfo(string orderFile, string where, int pageNumber, int pageSize)
{
DBHelper db = new DBHelper();
string str = @"with TestInfo as
(
select row_number() over(order by {0} desc) as rowNumber,* from
(select CSBH,K,C,S,DSB,TCBJ,LHDCYL,BJJL,BJLX,YLXS,FCTH,KHM1,KHM2,QKCS from YW_JGCS) temp {1}
)
select * from TestInfo
where rowNumber between (({2}-1)*{3}+1) and {2}*{3}";
string strSql = string.Format(str, orderFile, where, pageNumber, pageSize);
try
{
db.DBOpen();
return db.DbDataSet(strSql);
}
catch (Exception ex)
{
throw ex;
}
finally
{
db.DBClose();
}
}
/// <summary>
/// 结果参数总条数
/// </summary>
/// <param></param>
/// <returns></returns>
public static int GetToatlNum(string where)
{
DBHelper db = new DBHelper();
string strSql = string.Format(@"select count(*) from (select CSBH,K,C,S,DSB,TCBJ,LHDCYL,BJJL,BJLX,YLXS,FCTH,KHM1,KHM2,QKCS from YW_JGCS) temp {0}", where);
try
{
db.DBOpen();
return (int)db.ExecuteScalar(strSql);
}
catch (Exception ex)
{
throw ex;
}
finally
{
db.DBClose();
}
}

好了，代码就这么多

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