基于统一插件接口的WEB程序设计[下]

王朝c#·作者佚名  2006-12-17
窄屏简体版  字體: |||超大  

下面就是实际调用的程序原文件

using System;

using System.Collections;

using System.ComponentModel;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

using System.Text;

using clubstar.IPlug;

using clubstar.IPlug.DataOp;

using clubstar.uc;

using clubstar.DataOp;

namespace clubstar

{

/// <summary>

/// WebForm1 的摘要说明。

/// </summary>

public class InsertUser : System.Web.UI.Page

{

protected System.Web.UI.WebControls.Button Button1;

protected System.Web.UI.WebControls.Button Button2;

public RandomNum SessionID;

private void Page_Load(object sender, System.EventArgs e)

{

Common dai=new Common();

//session("verifycode")=rndnum

//Response.Write(SessionID.Text.ToString());

this.Button1.Click += new System.EventHandler(OnPluginClick);

}

public delegate void PerformInsert(string plugname,StringBuilder sql);

private void OnPluginClick(object sender,EventArgs args)

{

StringBuilder sql=new StringBuilder();

sql.Append("insert into clubuser (ID,sessionID,username) values (2,'123123','fuck')");

Common InsertUser=new Common();

PerformInsert Insert=new PerformInsert(InsertUser.PerformInsert);

Insert("clubstar.IPlug.DataOp.User",sql); //调用插件所代理的方法

}

#region Web 窗体设计器生成的代码

override protected void OnInit(EventArgs e)

{

//

// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。

//

InitializeComponent();

base.OnInit(e);

}

/// <summary>

/// 设计器支持所需的方法 - 不要使用代码编辑器修改

/// 此方法的内容。

/// </summary>

private void InitializeComponent()

{

this.Button2.Click += new System.EventHandler(this.Button2_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void Button2_Click(object sender, System.EventArgs e)

{

}

}

}

而上面文件中的PerformInsert代理针对如下事件函数进行操作

using System;

using System.Configuration;

using clubstar.IPlug;

using System.Text;

using System.Data.OleDb;

namespace clubstar

{

/// <summary>

/// Common 的摘要说明。

/// </summary>

public class Common

{

public Common()

{

}

private PluginCollection m_plugins = null; //被回调用于对插件进行插入操作

public void PerformInsert(string plugname,StringBuilder sql) //执行插入操作

{

m_plugins = (PluginCollection )ConfigurationSettings.GetConfig("IPlugs");

PlugSqlOp context = new PlugSqlOp(sql.ToString());

foreach(IPlugStarClub plugin in m_plugins)

{

if(plugin.Name==plugname)

{

plugin.PerformInsert(context);

return ;

}

}

}

public void PerformDelete(string plugname,StringBuilder sql)//执行删除操作

{

m_plugins = (PluginCollection )ConfigurationSettings.GetConfig("IPlugs");

PlugSqlOp context = new PlugSqlOp(sql.ToString());

foreach(IPlugStarClub plugin in m_plugins)

{

if(plugin.Name==plugname)

{

plugin.PerformDelete(context);

return ;

}

}

}

public void PerformUpdate(string plugname,StringBuilder sql)//执行更新操作

{

m_plugins = (PluginCollection )ConfigurationSettings.GetConfig("IPlugs");

PlugSqlOp context = new PlugSqlOp(sql.ToString());

foreach(IPlugStarClub plugin in m_plugins)

{

if(plugin.Name==plugname)

{

plugin.PerformUpdate(context);

return ;

}

}

}

private OleDbDataReader dr;

public OleDbDataReader PerformSelect(string plugname,StringBuilder sql)//执行查询操作

{

//OleDbDataReader dr=new OleDbDataReader();

m_plugins = (PluginCollection )ConfigurationSettings.GetConfig("IPlugs");

PlugSqlOp context = new PlugSqlOp(sql.ToString());

foreach(IPlugStarClub plugin in m_plugins)

{

if(plugin.Name==plugname)

{

dr=plugin.PerformSelect(context);

return dr;

}

}

return dr;

}

//如何使用上面的功能:先在前端文件中生成如下代理:

//public delegate void PerformInsert(string plugname,StringBuilder sql);

//public delegate void PerformDelete(string plugname,StringBuilder sql);

//public delegate OleDbDataReader PerformSelect(string plugname,StringBuilder sql);

//public delegate void PerformUpdate(string plugname,StringBuilder sql);

/* 插入示例

StringBuilder sql=new StringBuilder();

sql.Append("insert into clubuser (ID,sessionID,username) values (2,'123123','fuck')");

Common InsertUser=new Common();

PerformInsert Insert=new PerformInsert(InsertUser.PerformInsert);

Insert("clubstar.IPlug.DataOp.User",sql); //调用插件所代理的方法

*/

/* 删除示例

StringBuilder sql=new StringBuilder();

sql.Append("delete from clubuser where ID=2");

Common DeleteUser=new Common();

PerformDelete Delete=new PerformDelete(DeleteUser.PerformDelete);

Delete("clubstar.IPlug.DataOp.User",sql); //调用插件所代理的方法

*/

/* 查询示例

StringBuilder sql=new StringBuilder();

sql.Append("select * from clubuser where ID=2");

Common SelectUser=new Common();

PerformSelect Select=new PerformSelect(SelectUser.PerformSelect);

dr=Select("clubstar.IPlug.DataOp.User",sql); //调用插件所代理的方法

do{

Response.Write(dr["username"].ToString()+"<br>");

Response.Write(dr["nickname"].ToString()+"<br><br>");

}

while(dr.Read());

*/

/* 更新示例

StringBuilder sql=new StringBuilder();

sql.Append("update clubuser set ID=3 where ID=2");

Common UpdateUser=new Common();

PerformUpdate Update=new PerformUpdate(UpdateUser.PerformUpdate);

Update("clubstar.IPlug.DataOp.User",sql); //调用插件所代理的方法

*/

}

}

最后,只需要在WEBCONFIG中写入插件的信息就可以调用前面所写的插件了:

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

<configSections>

<section name="IPlugs" type="clubstar.PluginSectionHandler, clubstar" />

</configSections>

<IPlugs>

<plugin type="clubstar.IPlug.DataOp.User" />

</IPlugs>.........

由于这是本人第一次写文章,加之时间仓促,望各个大侠见谅。

 
 
 
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