cWeb开发框架，基于asp.net的cWeb应用开发平台介绍（二）

cWeb是基于微软的.Net Framework 4框架，数据库是sql server 2008 r2。

cWeb开发框架下载，点击这里去下载。

cWeb开发框架借鉴三层架构理论分为三层，分别是：cData、cBN和cWeb。cData是数据层，cBN是业务处理层，cWeb是业务展示层。解决方案如图示：



一、cData数据层

cData数据层，数据库字段的映射类。在其他开发框架中常见于datatable和dataview，也就是将数据库表映射成datatable，dataview继承datatable，并将其他如视图等的字段映射在dataview中。在类似于petshop等开发框架中分层可谓详细，虽然现在硬件的发展可以不用考虑继承、映射、调用等等的运行时间，但是对于大数据量下即使很小的优化都会起到极大的作用，所以直接的就是高效率的，简化后数据层都融合在了一起。

data层数据示例：

using System;

namespace AA.cData
{
/// <summary>
/// t_info 的摘要说明。
/// </summary>
[Serializable]
public class t_infoDV
{
/// <summary>
/// t_infoDV
/// </summary>
public t_infoDV()
{
}

//============================数据库字段=================================//

private long _ID = -1;
/// <summary>
/// ID
/// </summary>
public long ID
{
get
{
return _ID;
}
set
{
_ID = value;
}
}

private string _t_info_title = null;
/// <summary>
/// t_info_title
/// </summary>
public string t_info_title
{
get
{
return _t_info_title;
}
set
{
_t_info_title = value;
}
}

private DateTime _t_info_createtime = System.DateTime.MinValue;
/// <summary>
/// t_info_createtime
/// </summary>
public DateTime t_info_createtime
{
get
{
return _t_info_createtime;
}
set
{
_t_info_createtime = value;
}
}

//============================扩展字段==================================//

private string _t_info_title_like = null;
/// <summary>
/// t_info_title [模糊查询]
/// </summary>
public string t_info_title_like
{
get
{
return _t_info_title_like;
}
set
{
_t_info_title_like = value;
}
}

}
}

　　

二、cBN业务处理层

cBN业务处理层，也可以叫业务逻辑层。是数据层之上用来处理业务逻辑的方法，将除了web之外的所有业务处理都可以放在这个层里，比如添加、修改、删除、各种查询等方法，在web层仅仅调用一下就可以实现功能，也体现了业务逻辑通用原则，这样同样的业务处理就可以重复调用，提高了开发效率，减少了代码的冗长重复。

BN层示例：

using System;
using System.Collections.Generic;
using System.Text;

using System.Data;
using System.Data.SqlClient;

using cDB;
using AA.cData;

namespace AA.cBN
{
/// <summary>
/// t_info 的摘要说明。
/// </summary>
public class t_infoBN
{
DataInfo cDI;

/// <summary>
/// t_infoBN
/// </summary>
public t_infoBN()
{
cDI = new DataInfo();
}

#region [添加|修改|删除]

/// <summary>
/// [添加]
/// </summary>
/// <param name="tDV"></param>
/// <param name="msg"></param>
/// <returns></returns>
public int Add(t_infoDV tDV, out string msg)
{
try
{
mCommand oCommand = new mCommand();

oCommand.SqlTxt = "Insert into t_info(t_info_title,t_info_createtime)" +
" values(@t_info_title,@t_info_createtime)";

SqlParameter[] SqlItems = new SqlParameter[2];

SqlItems[0] = new SqlParameter("@t_info_title", SqlDbType.NVarChar);
SqlItems[0].Value = tDV.t_info_title;

SqlItems[1] = new SqlParameter("@t_info_createtime", SqlDbType.DateTime);
SqlItems[1].Value = tDV.t_info_createtime;

oCommand.AddParameter(SqlItems);

int iResult = cDI.iCommandSql(oCommand);

if (iResult > -1)
{
msg = "添加成功!";
}
else
{
msg = "添加失败!";
}

return iResult;

}
catch //(Exception ex)
{
//msg = ex.Message;
msg = "添加失败(异常)!";
return -11;     //-11表示异常
}
}

/// <summary>
/// [修改]
/// </summary>
/// <param name="tDV"></param>
/// <param name="msg"></param>
/// <returns></returns>
public int Edit(t_infoDV tDV, out string msg)
{

try
{
mCommand oCommand = new mCommand();

oCommand.SqlTxt = "update t_info set " +
"t_info_title=@t_info_title," +
"t_info_createtime=@t_info_createtime " +
"where ID=@ID";

SqlParameter[] SqlItems = new SqlParameter[3];

SqlItems[0] = new SqlParameter("@t_info_title", SqlDbType.NVarChar);
SqlItems[0].Value = tDV.t_info_title;

SqlItems[1] = new SqlParameter("@t_info_createtime", SqlDbType.DateTime);
SqlItems[1].Value = tDV.t_info_createtime;

SqlItems[2] = new SqlParameter("@ID", SqlDbType.BigInt);
SqlItems[2].Value = tDV.ID;

oCommand.AddParameter(SqlItems);

int iResult = cDI.iCommandSql(oCommand);

if (iResult > -1)
{
msg = "修改成功!";
}
else
{
msg = "修改失败!";
}

return iResult;

}
catch //(Exception ex)
{
//msg = ex.Message;
msg = "添加失败(异常)!";
return -11;     //-11表示异常
}
}

/// <summary>
/// [删除]
/// </summary>
/// <param name="tDV"></param>
/// <param name="msg"></param>
/// <returns></returns>
public int Del(t_infoDV tDV, out string msg)
{
try
{
mCommand oCommand = new mCommand();
oCommand.SqlTxt = "delete t_info where ID=@ID";
SqlParameter[] SqlItems = new SqlParameter[1];

SqlItems[0] = new SqlParameter("@ID", SqlDbType.BigInt);
SqlItems[0].Value = tDV.ID;

oCommand.AddParameter(SqlItems);

int iResult = cDI.iCommandSql(oCommand);

if (iResult > -1)
{
msg = "删除成功!";
}
else
{
msg = "删除失败!";
}

return iResult;
}
catch //(Exception ex)
{
//msg = ex.Message;
msg = "删除失败(异常)!";
return -11;     //-11表示异常
}
}
#endregion

#region [查询]
/// <summary>
/// [返回数据分页]
/// </summary>
/// <param name="tDV"></param>
/// <param name="sqlWhere">where语句</param>
/// <returns></returns>
public DataTable GetDataList(t_infoDV tDV, string sqlWhere)
{

DataTable DTe = new DataTable();

mCommand oCommand = new mCommand();

StringBuilder SqlTxtPrefiex = new StringBuilder(" select ISNULL(count(ID),0) as Counts from View_t_info where 1 = 1 " + sqlWhere + " ");
SqlParameter tSqlItem = null;

if (tDV.t_info_title != null)
{
SqlTxtPrefiex.Append(" and t_info_title = @t_info_title");
tSqlItem = new SqlParameter("@t_info_title", SqlDbType.NVarChar);
tSqlItem.Value = tDV.t_info_title;
oCommand.SqlParameters.Add(tSqlItem);
}

if (tDV.t_info_title_like != null)
{
SqlTxtPrefiex.Append(" and t_info_title like @t_info_title_like");
tSqlItem = new SqlParameter("@t_info_title_like", SqlDbType.NVarChar);
tSqlItem.Value = "%" + tDV.t_info_title_like + "%";
oCommand.SqlParameters.Add(tSqlItem);
}

oCommand.SqlTxt = SqlTxtPrefiex.ToString();

DTe = cDI.GetTable(oCommand);
return DTe;
}

/// <summary>
/// [返回数据]
/// </summary>
/// <param name="tDV"></param>
/// <param name="column">显示的列，默认为【*】全部</param>
/// <param name="sqlWhere">where语句</param>
/// <param name="beginIndex">开始记录</param>
/// <param name="endIndex">结束记录</param>
/// <param name="Order">排序，如【order by ID desc】</param>
/// <returns></returns>
public DataTable GetDataList(t_infoDV tDV, string column, string sqlWhere, long beginIndex, long endIndex, string Order)
{
if (string.IsNullOrEmpty(column))
column = " * ";

mCommand oCommand = new mCommand();

StringBuilder cSqlTxtPrefiex = new StringBuilder("select * from NoPagedTable WHERE rowIndex>=@beginIndex and rowIndex<=@endIndex");

SqlParameter[] SqlItems = new SqlParameter[2];

SqlItems[0] = new SqlParameter("@beginIndex", SqlDbType.BigInt);
SqlItems[0].Value = beginIndex;

SqlItems[1] = new SqlParameter("@endIndex", SqlDbType.BigInt);
SqlItems[1].Value = endIndex;

oCommand.SqlParameters.AddRange(SqlItems);

if (Order == string.Empty)
{
Order = " order by ID DESC ";
}

StringBuilder SqlTxtPrefiex = new StringBuilder(
"WITH NoPagedTable AS " +
"(" +
"SELECT ROW_NUMBER() OVER (" + Order + ") AS rowIndex," + column + " FROM View_t_info where 1 = 1 " + sqlWhere + " ");

SqlParameter tSqlItem = null;

if (tDV.t_info_title != null)
{
SqlTxtPrefiex.Append(" and t_info_title = @t_info_title");
tSqlItem = new SqlParameter("@t_info_title", SqlDbType.NVarChar);
tSqlItem.Value = tDV.t_info_title;
oCommand.SqlParameters.Add(tSqlItem);
}

if (tDV.t_info_title_like != null)
{
SqlTxtPrefiex.Append(" and t_info_title like @t_info_title_like");
tSqlItem = new SqlParameter("@t_info_title_like", SqlDbType.NVarChar);
tSqlItem.Value = "%" + tDV.t_info_title_like + "%";
oCommand.SqlParameters.Add(tSqlItem);
}

SqlTxtPrefiex.Append(")");

oCommand.SqlTxt = SqlTxtPrefiex.ToString() + cSqlTxtPrefiex.ToString();

return cDI.GetTable(oCommand);
}

/// <summary>
/// [返回DataTable]
/// </summary>
/// <param name="tDV"></param>
/// <param name="topNum">返回行数，默认【0】全部</param>
/// <param name="column">显示的列，默认为【*】全部</param>
/// <param name="sqlWhere">where语句</param>
/// <param name="order">排序，如【order by ID desc】</param>
/// <returns></returns>
public DataTable GetDataTable(t_infoDV tDV, int topNum, string column, string sqlWhere, string order)
{
if (string.IsNullOrEmpty(column))
column = " * ";

string topNumSql = "";
if (topNum > 0)
topNumSql = " top " + topNum.ToString();

DataTable DT = new DataTable();

mCommand oCommand = new mCommand();

StringBuilder SqlTxtPrefiex = new StringBuilder(" select " + topNumSql + " " + column + " from View_t_info where 1 = 1 " + sqlWhere + " ");
SqlParameter tSqlItem = null;

if (tDV.ID != -1)
{
SqlTxtPrefiex.Append(" and ID=@ID");
tSqlItem = new SqlParameter("@ID", SqlDbType.BigInt);
tSqlItem.Value = tDV.ID;
oCommand.SqlParameters.Add(tSqlItem);
}

if (tDV.t_info_title != null)
{
SqlTxtPrefiex.Append(" and t_info_title = @t_info_title");
tSqlItem = new SqlParameter("@t_info_title", SqlDbType.NVarChar);
tSqlItem.Value = tDV.t_info_title;
oCommand.SqlParameters.Add(tSqlItem);
}

if (tDV.t_info_title_like != null)
{
SqlTxtPrefiex.Append(" and t_info_title like @t_info_title_like");
tSqlItem = new SqlParameter("@t_info_title_like", SqlDbType.NVarChar);
tSqlItem.Value = "%" + tDV.t_info_title_like + "%";
oCommand.SqlParameters.Add(tSqlItem);
}

if (string.IsNullOrEmpty(order))
order = " order by ID desc ";

SqlTxtPrefiex.Append(" " + order + " ");

oCommand.SqlTxt = SqlTxtPrefiex.ToString();

DT = cDI.GetTable(oCommand);
return DT;
}

#endregion

}
}

　　

三、cWeb业务展示层

cWeb业务展示层，用于业务逻辑展示的层，调用BN层的函数直接显示在web页面中。

web层示例：

infolist.aspx.cs代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using System.Data;

using AA.cData;
using AA.cBN;
using cPage;

namespace AA.cWeb.manage.info
{
public partial class infolist : System.Web.UI.Page
{
cUser cu = new cUser();

public int p = 1;   //页码

protected void Page_Load(object sender, EventArgs e)
{
#region [判断是否登录]
if (!cu.isLogin())
{
cGlobal.frameGoUrl(this, "../../default.aspx");
return;
}
#endregion

#region 分页获得页码
string _p = Request.QueryString["p"];

if (string.IsNullOrEmpty(_p))
_p = "1";

if (cGlobal.IsIntType(_p))
{
p = Convert.ToInt32(_p);
}
else
{
cGlobal.showBoxBack(this, "页码不正确！");
return;
}
#endregion

#region [判断是具有访问权限]
if (!cDataCommon.userPagePower(cu.userID, "0202"))
{
cGlobal.showBoxBack(this, "您没有权限访问！");
return;
}
#endregion

#region [获得在【系统设置=》角色管理=》权限设置】中点击某一菜单后，“菜单功能权限设置”设置的功能]
string userPageFunctionPower = cDataCommon.userPageFunctionPower(cu.userID, "0202");
//判断是否具有“添加”功能
if (userPageFunctionPower.IndexOf("|add|") > -1)
btnAdd.Visible = true;
else
btnAdd.Visible = false;
#endregion

if (!Page.IsPostBack)
{

dataBind();
}

}

protected void dataBind()
{
string _url = "infolist.aspx?p=[#p#]";
int _pageNum = 10;                              // 中间页码数量
int _pageSize = 10;                             //每页记录数
int _beginIndex = 0;
int _endIndex = 0;

t_infoBN tBN = new t_infoBN();
t_infoDV tDV = new t_infoDV();

DataTable rcDT = tBN.GetDataList(tDV, "");

lblpage.Text = mPage.getPage(Convert.ToInt32(rcDT.Rows[0][0].ToString()), _pageSize, _pageNum, p, out _beginIndex, out _endIndex, _url);

DataTable DT = tBN.GetDataList(tDV, "", "", _beginIndex, _endIndex, "");

rlist.DataSource = DT;
rlist.DataBind();

}

protected void rlist_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemIndex > -1)
{
((LinkButton)e.Item.FindControl("lnkbtnDel")).Attributes["onclick"] = "return confirm('确认要删除吗？');";
}
}

protected void rlist_ItemCommand(object source, RepeaterCommandEventArgs e)
{
if (e.CommandName == "del")
{
try
{
long _ID = Convert.ToInt64(((HiddenField)(e.Item.FindControl("hfID"))).Value);

t_sys_logBN tBN = new t_sys_logBN();
t_sys_logDV tDV = new t_sys_logDV();

tDV.ID = _ID;

string msg = "";
int iResult = -2;

iResult = tBN.Del(tDV, out msg);

if (iResult >= 0)   //0,执行完成，>1，执行完成影响的记录数
{
cGlobal.showBoxGo(this, "删除成功！", Request.Url.ToString());
}
else
{
cGlobal.showBoxBack(this, "删除失败！");
}

}
catch
{
cGlobal.showBoxBack(this, "数据格式不正确(异常)");
}
}
}

}
}

　　

更详细的介绍和cWeb源代码，去这里下载。

原帖地址：cWeb开发框架，基于asp.net的cWeb应用开发平台介绍（二）

bubufx提供，禁止转载。