用c#开发微信 (8) 微渠道 - 推广渠道管理系统 3 UI设计及后台处理

时间:2021-05-17 03:55:51

我们可以使用微信的“生成带参数二维码接口”和 “用户管理接口”,来实现生成能标识不同推广渠道的二维码,记录分配给不同推广渠道二维码被扫描的信息。这样就可以统计和分析不同推广渠道的推广效果。

前面二篇《用c#开发微信 (6) 微渠道 - 推广渠道管理系统 1 基础架构搭建》, 《用c#开发微信 (7) 微渠道 - 推广渠道管理系统 2 业务逻辑实现》分别介绍了数据访问层和业务逻辑层。 本文是微渠道的第三篇,主要介绍如下内容:

1. 接收二维码扫描事件

2. 推广渠道类型管理

3. 推广渠道管理

4. 推广渠道二维码扫描记录列表

5. 下载渠道二维码

6. 微信用户列表

 

下面是详细的实现方法:

 

1. 接收二维码扫描事件

可参考前面的 《用c#开发微信 (4) 基于Senparc.Weixin框架的接收事件推送处理 (源码下载)》,这里就不过多讲解了:

/// <summary>
/// 自定义MessageHandler
/// 把MessageHandler作为基类,重写对应请求的处理方法
/// </summary>
public partial class CustomMessageHandler : MessageHandler<MessageContext<IRequestMessageBase, IResponseMessageBase>>
{
   /// <summary>
   /// 构造函数
   /// </summary>
   /// <param name="inputStream"></param>
   /// <param name="maxRecordCount"></param>
   public CustomMessageHandler(Stream inputStream, int maxRecordCount = 0)
       : base(inputStream, null, maxRecordCount)
   {
       //这里设置仅用于测试,实际开发可以在外部更全局的地方设置,
       //比如MessageHandler<MessageContext>.GlobalWeixinContext.ExpireMinutes = 3。
       WeixinContext.ExpireMinutes = 3;
   }
   public override void OnExecuting()
   {
       //测试MessageContext.StorageData
       if (CurrentMessageContext.StorageData == null)
       {
           CurrentMessageContext.StorageData = 0;
       }
       base.OnExecuting();
   }
   public override void OnExecuted()
   {
       base.OnExecuted();
       CurrentMessageContext.StorageData = ((int)CurrentMessageContext.StorageData) + 1;
   }
   /// <summary>
   /// 处理扫描请求
   /// 用户扫描带场景值二维码时,如果用户已经关注公众号,则微信会将带场景值扫描事件推送给开发者。
   /// </summary>
   /// <returns></returns>
   public override IResponseMessageBase OnEvent_ScanRequest(RequestMessageEvent_Scan requestMessage)
   {
       int sceneId = 0;
       int.TryParse(requestMessage.EventKey, out sceneId);
       if (sceneId > 0)
       {
           new ChannelScanBll().SaveScan(requestMessage.FromUserName, sceneId, ScanType.Scan);
       }
       var responseMessage = CreateResponseMessage<ResponseMessageText>();
       responseMessage.Content = "扫描已记录";
       return responseMessage;
   }
   /// <summary>
   /// 处理关注请求
   /// 用户扫描带场景值二维码时,如果用户还未关注公众号,则用户可以关注公众号,关注后微信会将带场景值关注事件推送给开发者。
   /// </summary>
   /// <returns></returns>
   public override IResponseMessageBase OnEvent_SubscribeRequest(RequestMessageEvent_Subscribe requestMessage)
   {
       if (!string.IsNullOrWhiteSpace(requestMessage.EventKey))
       {
           string sceneIdstr = requestMessage.EventKey.Substring(8);
           int sceneId = 0;
           int.TryParse(sceneIdstr, out sceneId);
           if (sceneId > 0)
           {
               new ChannelScanBll().SaveScan(requestMessage.FromUserName, sceneId, ScanType.Subscribe);
           }
       }
       var responseMessage = CreateResponseMessage<ResponseMessageText>();
       responseMessage.Content = "扫描已记录";
       return responseMessage;
   }
 
   public override IResponseMessageBase DefaultResponseMessage(IRequestMessageBase requestMessage)
   {
       //所有没有被处理的消息会默认返回这里的结果
       var responseMessage = this.CreateResponseMessage<ResponseMessageText>();
       responseMessage.Content = "这条消息来自DefaultResponseMessage。";
       return responseMessage;
   }
}

 

前端开发框架使用Bootstrap,没有注明前台的页面表示前台不用显示任何内容

2. 推广渠道类型管理

主要是对推广渠道类型的新增、修改、删除及列表显示等

1) 渠道新增、修改页面

前台:

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>修改渠道类型</title>
</head>
<body>
    <form id="Form1" class="form-horizontal" type="post" runat="server">
        <%if (ViewState["channelType"] != null)
          {%>
        <%-- 修改表单 --%>
        <input type="hidden" name="ID" value="<%=(ViewState["channelType"] as ChannelSystem.ViewEntity.ChannelTypeEntity).ID%>" />
        <div class="control-group">
            <label class="control-label" for="Name"><strong>渠道类型名称</strong></label>
            <div class="controls">
                <input type="text" name="Name" value="<%=(ViewState["channelType"] as ChannelSystem.ViewEntity.ChannelTypeEntity).Name%>" />
            </div>
        </div>
        <%}
          else
          {%>
        <%-- 新增表单 --%>
        <div class="control-group">
            <label class="control-label" for="Name"><strong>渠道类型名称</strong></label>
            <div class="controls">
                <input type="text" name="Name" />
            </div>
        </div>
        <%}%>
        <%-- 提交按钮 --%>
        <button class="btn btn-large btn-primary" type="submit">保存</button>
    </form>
</body>
</html>

 

后台:

/// <summary>
/// 新增或修改渠道类型
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        //修改渠道类型,首先获取渠道类型数据
        int id;
        if (int.TryParse(Request.QueryString["id"], out id))
        {
            ViewState["channelType"] = new ChannelTypeBll().GetEntityById(id);
        }
    }
    else
    {
        //将渠道类型新增或修改的数据保存到数据库
        var entity = new ChannelTypeEntity()
        {
            ID = Request.Form["ID"] == null ? 0 : int.Parse(Request.Form["ID"]),
            Name = Request.Form["Name"]
        };
        new ChannelTypeBll().UpdateOrInsertEntity(entity);
        //回到渠道类型列表页面
        Response.Redirect("ChannelTypeList.aspx");
        Response.End();
    }
}

 

2) 渠道类型列表页面

前台:

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>渠道类型列表</title>
</head>
<!-- #Bootstrap -->
<link href="Css/bootstrap.min.css" rel="stylesheet" />
<script src="Scripts/bootstrap.min.js"></script>
<!-- #Jquery -->
<script src="Scripts/jquery-1.9.1.min.js"></script>
<body>
    <div class="container">
        <form id="Form1" class="form-horizontal" type="post" runat="server">
            <h2 class="form-signin-heading">渠道类型列表</h2>
            <a class="btnGrayS vm doaddit" href="ChannelTypeEdit.aspx">添加</a> <a class="btnGrayS vm doaddit" href="ChannelList.aspx">渠道列表</a>
            <table id="listTable" class="table table-bordered table-hover dataTable" style="width: auto">
                <thead>
                    <tr>
                        <th style="border-color: #ddd; color: Black">ID
                        </th>
                        <th style="border-color: #ddd; color: Black">渠道类型名称
                        </th>
                        <th style="border-color: #ddd; color: Black">操作
                        </th>
                    </tr>
                </thead>
                <tbody>
                    <% foreach (ChannelSystem.ViewEntity.ChannelTypeEntity channelType in (ViewState["ChannelTypeList"] as List<ChannelSystem.ViewEntity.ChannelTypeEntity>))
                       { %>
                    <tr>
                        <td><%= channelType.ID%>
                                </td>
                        <td><%= channelType.Name%>
                                </td>
                        <td>
                            <p>
                                <a class="btnGrayS vm doaddit" href="ChannelTypeEdit.aspx?id=<%= channelType.ID%>">编辑</a>
                                <a href="javascript:void(0)" data="<%= channelType.ID%>" class="dodelit deleteChannelType">删除</a>
                            </p>
                        </td>
                    </tr>
                    <% } %>
                </tbody>
            </table>
        </form>
    </div>
    <script>
        $(function () {
            $(".deleteChannelType").click(function () {
                if (confirm("确定删除吗?")) {
                    var id = $(this).attr("data");
                    $.ajax({
                        url: "ChannelTypeDelete.aspx?id=" + id,
                        type: "get",
                        success: function (repText) {
                            if (repText && repText == "True") {
                                window.location.reload();
                            } else {
                                alert(repText.ErrorMsg);
                            }
                        },
                        complete: function (xhr, ts) {
                            xhr = null;
                        }
                    });
                }
            });
        });
    </script>
</body>
</html>

 

后台:

/// <summary>
/// 渠道类型列表
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    //获取渠道类型列表数据
    ViewState["ChannelTypeList"] = new ChannelTypeBll().GetEntities();
}

 

3) 渠道类型删除页面

后台:

/// <summary>
/// 删除渠道类型
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    //获取渠道类型ID
    int id;
    if (int.TryParse(Request.QueryString["id"], out id))
    {
        //删除渠道类型并返回删除结果
        bool result = new ChannelTypeBll().DeleteEntityById(id);
        Response.Write(result.ToString());
        Response.End();
    }
}

 

3. 推广渠道管理

主要是对推广渠道的新增、修改、删除及列表显示等

1) 渠道新增、修改页面

前台:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>修改渠道</title>
</head>
<body>
    <form id="Form1" class="form-horizontal" type="post" runat="server">
        <%if (ViewState["channel"] != null)
          {%>
        <%-- 修改表单 --%>
        <input type="hidden" name="ID" value="<%=(ViewState["channel"] as ChannelSystem.ViewEntity.ChannelEntity).ID%>" />
        <div class="control-group">
            <label class="control-label" for="Name"><strong>渠道名称</strong></label>
            <div class="controls">
                <input type="text" name="Name" value="<%=(ViewState["channel"] as ChannelSystem.ViewEntity.ChannelEntity).Name%>" />
            </div>
        </div>
        <div class="control-group">
            <label class="control-label" for="ChannelTypeId"><strong>所属渠道类型</strong></label>
            <div class="controls">
                <%-- 构造渠道类型下拉框 --%>
                <select name="ChannelTypeId">
                    <% foreach (ChannelSystem.ViewEntity.ChannelTypeEntity channelType in (ViewState["ChannelTypeList"] as List<ChannelSystem.ViewEntity.ChannelTypeEntity>))
                       { %>
                    <%if (channelType.ID == (ViewState["channel"] as ChannelSystem.ViewEntity.ChannelEntity).ChannelTypeId)
                      {%>
                    <%-- 设置渠道类型下拉框初始选中项目 --%>
                    <option value="<%=channelType.ID %>" selected="selected"><%=channelType.Name %></option>
                    <%}
                      else
                      {%>
                    <option value="<%=channelType.ID %>"><%=channelType.Name %></option>
                    <%}%>
                    <% } %>
                </select>
            </div>
        </div>
        <%}
          else
          {%>
        <%-- 新增表单 --%>
        <div class="control-group">
            <label class="control-label" for="Name"><strong>渠道名称</strong></label>
            <div class="controls">
                <input type="text" name="Name" />
            </div>
        </div>
        <div class="control-group">
            <label class="control-label" for="ChannelTypeId"><strong>所属渠道类型</strong></label>
            <div class="controls">
                <%-- 构造渠道类型下拉框 --%>
                <select name="ChannelTypeId">
                    <% foreach (ChannelSystem.ViewEntity.ChannelTypeEntity channelType in (ViewState["ChannelTypeList"] as List<ChannelSystem.ViewEntity.ChannelTypeEntity>))
                       { %>
                    <option value="<%=channelType.ID %>"><%=channelType.Name %></option>
                    <% } %>
                </select>
            </div>
        </div>
        <%}%>
        <%-- 提交按钮 --%>
        <button class="btn btn-large btn-primary" type="submit">保存</button>
    </form>
</body>
</html>

 

后台:

/// <summary>
/// 新增或修改渠道
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        //获取渠道类型列表数据
        ViewState["ChannelTypeList"] = new ChannelTypeBll().GetEntities();
        //修改渠道,首先获取渠道数据
        int id;
        if (int.TryParse(Request.QueryString["id"], out id))
        {
            ViewState["Channel"] = new ChannelBll().GetEntityById(id);
        }
    }
    else
    {
        //将渠道新增或修改的数据保存到数据库
        var entity = new ChannelEntity()
        {
            ID = Request.Form["ID"] == null ? 0 : int.Parse(Request.Form["ID"]),
            Name = Request.Form["Name"],
            ChannelTypeId = int.Parse(Request.Form["ChannelTypeId"])
        };
        new ChannelBll().UpdateOrInsertEntity(entity);
        //回到渠道列表页面
        Response.Redirect("ChannelList.aspx");
        Response.End();
    }
}

 

2) 渠道列表页面

前台:

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>渠道类型列表</title>
</head>
<!-- #Bootstrap -->
<link href="Css/bootstrap.min.css" rel="stylesheet" />
<script src="Scripts/bootstrap.min.js"></script>
<!-- #Jquery -->
<script src="Scripts/jquery-1.9.1.min.js"></script>
<body>
    <div class="container">
        <form id="Form1" class="form-horizontal" type="post" runat="server">
            <h2 class="form-signin-heading">渠道类型列表</h2>
            <a class="btnGrayS vm doaddit" href="ChannelTypeEdit.aspx">添加</a> <a class="btnGrayS vm doaddit" href="ChannelList.aspx">渠道列表</a>
            <table id="listTable" class="table table-bordered table-hover dataTable" style="width: auto">
                <thead>
                    <tr>
                        <th style="border-color: #ddd; color: Black">ID
                        </th>
                        <th style="border-color: #ddd; color: Black">渠道类型名称
                        </th>
                        <th style="border-color: #ddd; color: Black">操作
                        </th>
                    </tr>
                </thead>
                <tbody>
                    <% foreach (ChannelSystem.ViewEntity.ChannelTypeEntity channelType in (ViewState["ChannelTypeList"] as List<ChannelSystem.ViewEntity.ChannelTypeEntity>))
                       { %>
                    <tr>
                        <td><%= channelType.ID%>
                                </td>
                        <td><%= channelType.Name%>
                                </td>
                        <td>
                            <p>
                                <a class="btnGrayS vm doaddit" href="ChannelTypeEdit.aspx?id=<%= channelType.ID%>">编辑</a>
                                <a href="javascript:void(0)" data="<%= channelType.ID%>" class="dodelit deleteChannelType">删除</a>
                            </p>
                        </td>
                    </tr>
                    <% } %>
                </tbody>
            </table>
        </form>
    </div>
    <script>
        $(function () {
            $(".deleteChannelType").click(function () {
                if (confirm("确定删除吗?")) {
                    var id = $(this).attr("data");
                    $.ajax({
                        url: "ChannelTypeDelete.aspx?id=" + id,
                        type: "get",
                        success: function (repText) {
                            if (repText && repText == "True") {
                                window.location.reload();
                            } else {
                                alert(repText.ErrorMsg);
                            }
                        },
                        complete: function (xhr, ts) {
                            xhr = null;
                        }
                    });
                }
            });
        });
    </script>
</body>
</html>

 

后台:

/// <summary>
/// 渠道列表
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    //获取渠道列表数据
    ViewState["ChannelList"] = new ChannelBll().GetEntities();
}

 

3) 渠道删除页面

后台:

/// <summary>
/// 删除渠道
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    //获取渠道ID
    int id;
    if (int.TryParse(Request.QueryString["id"], out id))
    {
        //删除渠道并返回删除结果
        bool result = new ChannelBll().DeleteEntityById(id);
        Response.Write(result.ToString());
        Response.End();
    }
}

 

 

4. 推广渠道二维码扫描记录列表

前台:

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>扫描记录列表</title>
</head>
<!-- #Bootstrap -->
<link href="Css/bootstrap.min.css" rel="stylesheet" />
<script src="Scripts/bootstrap.min.js"></script>
<!-- #Jquery -->
<script src="Scripts/jquery-1.9.1.min.js"></script>
<body>
    <div class="container">
        <form id="Form1" class="form-horizontal" type="post" runat="server">
            <h2 class="form-signin-heading">扫描记录列表</h2>
            <table id="listTable" class="table table-bordered table-hover dataTable" style="width: auto">
                <thead>
                    <tr>
                        <th style="border-color: #ddd; color: Black">ID
                        </th>
                        <th style="border-color: #ddd; color: Black">扫描类型
                        </th>
                        <th style="border-color: #ddd; color: Black">扫描时间
                        </th>
                        <th style="border-color: #ddd; color: Black">所属渠道ID
                        </th>
                        <th style="border-color: #ddd; color: Black">微信用户OpenId
                        </th>
                        <th style="border-color: #ddd; color: Black">头像
                        </th>
                        <th style="border-color: #ddd; color: Black">昵称
                        </th>
                        <th style="border-color: #ddd; color: Black">性别
                        </th>
                        <th style="border-color: #ddd; color: Black">国家
                        </th>
                        <th style="border-color: #ddd; color: Black">省
                        </th>
                        <th style="border-color: #ddd; color: Black">市
                        </th>
                        <th style="border-color: #ddd; color: Black">关注时间
                        </th>
                    </tr>
                </thead>
                <tbody>
                    <% foreach (ChannelSystem.ViewEntity.ChannelScanDisplayEntity channelScanDisplay in (ViewState["ChannelScanDisplayList"] as List<ChannelSystem.ViewEntity.ChannelScanDisplayEntity>))
                       { %>
                    <tr>
                        <td><%= channelScanDisplay.ScanEntity.ID%>
                                </td>
                        <td><%= channelScanDisplay.ScanEntity.ScanType.ToString()%>
                                </td>
                        <td><%= channelScanDisplay.ScanEntity.ScanTime.ToString()%>
                                </td>
                        <td><%= channelScanDisplay.ScanEntity.ChannelId.ToString()%>
                                </td>
                        <td><%= channelScanDisplay.ScanEntity.OpenId%>
                                </td>
                        <td>
                            <img width="50px" src="<%= channelScanDisplay.UserInfoEntity.HeadImgUrl%>" />
                        </td>
                        <td><%= channelScanDisplay.UserInfoEntity.NickName%>
                                </td>
                        <td><%= channelScanDisplay.UserInfoEntity.Sex.ToString()%>
                                </td>
                        <td><%= channelScanDisplay.UserInfoEntity.Country%>
                                </td>
                        <td><%= channelScanDisplay.UserInfoEntity.Province%>
                                </td>
                        <td><%= channelScanDisplay.UserInfoEntity.City%>
                                </td>
                        <td><%= channelScanDisplay.UserInfoEntity.SubscribeTime.ToShortDateString()%>
                                </td>
                    </tr>
                    <% } %>
                </tbody>
            </table>
        </form>
    </div>
</body>
</html>

 

后台:

/// <summary>
/// 渠道扫描记录列表
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    //获取渠道ID
    int id;
    if (int.TryParse(Request.QueryString["id"], out id))
    {
        //获取渠道扫描记录列表数据
        ViewState["ChannelScanDisplayList"] = new ChannelScanBll().GetChannelScanList(id);
    }
}

 

5. 下载渠道二维码

后台:

/// <summary>
/// 下载渠道二维码
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
    //获取渠道ID
    int id;
    if (int.TryParse(Request.QueryString["id"], out id))
    {
        var entity = new ChannelBll().GetEntityById(id);
        //将数据库中Base64String格式图片转换为Image格式,返回给浏览器
        string base64Image = File.ReadAllText(System.Web.HttpContext.Current.Server.MapPath("~/App_Data/") + entity.Qrcode);
        byte[] arr = Convert.FromBase64String(base64Image);
        MemoryStream ms = new MemoryStream(arr);
        Response.ContentType = "image/jpeg";
        ms.WriteTo(Response.OutputStream);
        Response.End();
    }
}

 

6. 微信用户列表

前台:

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>微信用户列表</title>
</head>
<!-- #Bootstrap -->
<link href="Css/bootstrap.min.css" rel="stylesheet" />
<script src="Scripts/bootstrap.min.js"></script>
<!-- #Jquery -->
<script src="Scripts/jquery-1.9.1.min.js"></script>
<body>
    <div class="container">
        <form id="Form1" class="form-horizontal" type="post" runat="server">
            <h2 class="form-signin-heading">微信用户列表</h2>
            <table id="listTable" class="table table-bordered table-hover dataTable" style="width: auto">
                <thead>
                    <tr>
                        <th style="border-color: #ddd; color: Black">OpenId
                        </th>
                        <th style="border-color: #ddd; color: Black">头像
                        </th>
                        <th style="border-color: #ddd; color: Black">昵称
                        </th>
                        <th style="border-color: #ddd; color: Black">性别
                        </th>
                        <th style="border-color: #ddd; color: Black">国家
                        </th>
                        <th style="border-color: #ddd; color: Black">省
                        </th>
                        <th style="border-color: #ddd; color: Black">市
                        </th>
                        <th style="border-color: #ddd; color: Black">注册时间
                        </th>
                    </tr>
                </thead>
                <tbody>
                    <% foreach (ChannelSystem.ViewEntity.WeixinUserInfoEntity weixinUserInfo in (ViewState["WeixinUserInfoList"] as List<ChannelSystem.ViewEntity.WeixinUserInfoEntity>))
                       { %>
                    <tr>
                        <td><%= weixinUserInfo.OpenId%>
                                </td>
                        <td>
                            <img width="50px" src="<%= weixinUserInfo.HeadImgUrl%>" />
                        </td>
                        <td><%= weixinUserInfo.NickName%>
                                </td>
                        <td><%= weixinUserInfo.Sex.ToString()%>
                                </td>
                        <td><%= weixinUserInfo.Country%>
                                </td>
                        <td><%= weixinUserInfo.Province%>
                                </td>
                        <td><%= weixinUserInfo.City%>
                                </td>
                        <td><%= weixinUserInfo.SubscribeTime.ToShortDateString()%>
                                </td>
                    </tr>
                    <% } %>
                </tbody>
            </table>
        </form>
    </div>
</body>
</html>

 

后台:

protected void Page_Load(object sender, EventArgs e)
{
    //获取微信用户列表数据
    ViewState["WeixinUserInfoList"] = new WeixinUserInfoBll().GetEntities();
}

上一篇,讲过同步微信用户的线程只会在这个页面第一次打开时被调用。

 

同样地,我们也要建一个Index页面作为入口:

private readonly string Token = ConfigurationManager.AppSettings["token"];//与微信公众账号后台的Token设置保持一致,区分大小写。
protected void Page_Load(object sender, EventArgs e)
{
    string signature = Request["signature"];
    string timestamp = Request["timestamp"];
    string nonce = Request["nonce"];
    string echostr = Request["echostr"];
    if (Request.HttpMethod == "GET")
    {
        //get method - 仅在微信后台填写URL验证时触发
        if (CheckSignature.Check(signature, timestamp, nonce, Token))
        {
            WriteContent(echostr); //返回随机字符串则表示验证通过
        }
        else
        {
            WriteContent("failed:" + signature + "," + CheckSignature.GetSignature(timestamp, nonce, Token) + "。" +
                        "如果你在浏览器中看到这句话,说明此地址可以被作为微信公众账号后台的Url,请注意保持Token一致。");
        }
        Response.End();
    }
    else
    {
        //post method - 当有用户想公众账号发送消息时触发
        if (!CheckSignature.Check(signature, timestamp, nonce, Token))
        {
            WriteContent("参数错误!");
            return;
        }
        //设置每个人上下文消息储存的最大数量,防止内存占用过多,如果该参数小于等于0,则不限制
        var maxRecordCount = 10;
        //自定义MessageHandler,对微信请求的详细判断操作都在这里面。
        var messageHandler = new CustomMessageHandler(Request.InputStream, maxRecordCount);
        try
        {
            //测试时可开启此记录,帮助跟踪数据,使用前请确保App_Data文件夹存在,且有读写权限。
            messageHandler.RequestDocument.Save(
                Server.MapPath("~/App_Data/" + DateTime.Now.Ticks + "_Request_" +
                               messageHandler.RequestMessage.FromUserName + ".txt"));
            //执行微信处理过程
            messageHandler.Execute();
            //测试时可开启,帮助跟踪数据
            messageHandler.ResponseDocument.Save(
                Server.MapPath("~/App_Data/" + DateTime.Now.Ticks + "_Response_" +
                               messageHandler.ResponseMessage.ToUserName + ".txt"));
            WriteContent(messageHandler.ResponseDocument.ToString());
            return;
        }
        catch (Exception ex)
        {
            //将程序运行中发生的错误记录到App_Data文件夹
            using (TextWriter tw = new StreamWriter(Server.MapPath("~/App_Data/Error_" + DateTime.Now.Ticks + ".txt")))
            {
                tw.WriteLine(ex.Message);
                tw.WriteLine(ex.InnerException.Message);
                if (messageHandler.ResponseDocument != null)
                {
                    tw.WriteLine(messageHandler.ResponseDocument.ToString());
                }
                tw.Flush();
                tw.Close();
            }
            WriteContent("");
        }
        finally
        {
            Response.End();
        }
    }
}
private void WriteContent(string str)
{
    Response.Output.Write(str);
}

 

最后整个View就如下图:

用c#开发微信 (8) 微渠道 - 推广渠道管理系统 3 UI设计及后台处理

 

未完待续!!!

 

 

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