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这篇文章将为大家详细讲解有关如何使用用C#.net开发微信公众信号接口，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
微信接口地址代码:
weixin _wx = new weixin();
string postStr = "";
if (Request.HttpMethod.ToLower() == "post")
{
Stream s = System.Web.HttpContext.Current.Request.InputStream;
byte[] b = new byte[s.Length];
s.Read(b, 0, (int)s.Length);
postStr = Encoding.UTF8.GetString(b);
if (!string.IsNullOrEmpty(postStr)) //请求处理
{
_wx.Handle(postStr);
}
}
else
{
_wx.Auth();
}
微信处理类：
public class weixin
{
private string Token = "weixin_token"; //换成自己的token
public void Auth()
{
string echoStr = System.Web.HttpContext.Current.Request.QueryString["echoStr"];
if (CheckSignature())
{
if (!string.IsNullOrEmpty(echoStr))
{
System.Web.HttpContext.Current.Response.Write(echoStr);
System.Web.HttpContext.Current.Response.End();
}
}
}
public void Handle(string postStr)
{
//封装请求类
XmlDocument doc = new XmlDocument();
doc.LoadXml(postStr);
XmlElement rootElement = doc.DocumentElement;
XmlNode MsgType = rootElement.SelectSingleNode("MsgType");
RequestXML requestXML = new RequestXML();
requestXML.ToUserName = rootElement.SelectSingleNode("ToUserName").InnerText;
requestXML.FromUserName = rootElement.SelectSingleNode("FromUserName").InnerText;
requestXML.CreateTime = rootElement.SelectSingleNode("CreateTime").InnerText;
requestXML.MsgType = MsgType.InnerText;
if (requestXML.MsgType == "text")
{
requestXML.Content = rootElement.SelectSingleNode("Content").InnerText;
}
else if (requestXML.MsgType == "location")
{
requestXML.Location_X = rootElement.SelectSingleNode("Location_X").InnerText;
requestXML.Location_Y = rootElement.SelectSingleNode("Location_Y").InnerText;
requestXML.Scale = rootElement.SelectSingleNode("Scale").InnerText;
requestXML.Label = rootElement.SelectSingleNode("Label").InnerText;
}
else if (requestXML.MsgType == "image")
{
requestXML.PicUrl = rootElement.SelectSingleNode("PicUrl").InnerText;
}
//回复消息
ResponseMsg(requestXML);
}
///
/// 验证微信签名
///
/// * 将token、timestamp、nonce三个参数进行字典序排序
/// * 将三个参数字符串拼接成一个字符串进行sha1加密
/// * 开发者获得加密后的字符串可与signature对比，标识该请求来源于微信。
///
/// 回复消息(微信信息返回)
///
///
private void ResponseMsg(RequestXML requestXML)
{
try
{
string resxml = "";
mijiya mi = new mijiya(requestXML.Content,requestXML.FromUserName);
if (requestXML.MsgType == "text")
{
//在这里执行一系列操作，从而实现自动回复内容.
string _reMsg = mi.GetReMsg();
if (mi.msgType == 1)
{
resxml = "" + ConvertDateTimeInt(DateTime.Now) + " 2 ";
resxml += mi.GetRePic(requestXML.FromUserName);
resxml += " 1 " + ConvertDateTimeInt(DateTime.Now) + " 1 " + ConvertDateTimeInt(DateTime.Now) + " 1 " + ConvertDateTimeInt(DateTime.Now) + " 1 " + ConvertDateTimeInt(DateTime.Now) + " 1 " + ConvertDateTimeInt(DateTime.Now) + " " + size + " ";
//List list = new List();
////假如有20条查询的返回结果
//for (int i = 0; i < 20; i++)
//{
// list.Add("1");
//}
//string[] piclist = new string[] { "/Abstract_Pencil_Scribble_Background_Vector_main.jpg", "/balloon_tree.jpg", "/bloom.jpg", "/colorful_flowers.jpg", "/colorful_summer_flower.jpg", "/fall.jpg", "/fall_tree.jpg", "/growing_flowers.jpg", "/shoes_illustration.jpg", "/splashed_tree.jpg" };
//for (int i = 0; i < size && i < list.Count; i++)
//{
// resxml += "<![CDATA[沈阳-黑龙江]]> 1 " + ConvertDateTimeInt(DateTime.Now) + " 1 " + ConvertDateTimeInt(DateTime.Now) + " 1
/// unix时间转换为datetime
///
///
///
/// datetime转换为unixtime
///
///
///
/// 调用百度地图，返回坐标信息
///
/// 经度
/// 纬度
///
/// Post 提交调用抓取
///
/// 提交地址
/// 参数
/// string
public string webRequestPost(string url, string param)
{
byte[] bs = System.Text.Encoding.UTF8.GetBytes(param);
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url + "?" + param);
req.Method = "Post";
req.Timeout = 120 * 1000;
req.ContentType = "application/x-www-form-urlencoded;";
req.ContentLength = bs.Length;
using (Stream reqStream = req.GetRequestStream())
{
reqStream.Write(bs, 0, bs.Length);
reqStream.Flush();
}
using (WebResponse wr = req.GetResponse())
{
//在这里对接收到的页面内容进行处理
Stream strm = wr.GetResponseStream();
StreamReader sr = new StreamReader(strm, System.Text.Encoding.UTF8);
string line;
System.Text.StringBuilder sb = new System.Text.StringBuilder();
while ((line = sr.ReadLine()) != null)
{
sb.Append(line + System.Environment.NewLine);
}
sr.Close();
strm.Close();
return sb.ToString();
}
}
private void WriteToDB(RequestXML requestXML,string _xml,int _pid)
{
wx_tmsg wx = new wx_tmsg();
wx.AddNew();
wx.FromUserName = requestXML.FromUserName;
wx.ToUserName = requestXML.ToUserName;
wx.MsgType = requestXML.MsgType;
wx.Msg = requestXML.Content;
wx.Creatime = requestXML.CreateTime;
wx.Location_X = requestXML.Location_X;
wx.Location_Y = requestXML.Location_Y;
wx.Label = requestXML.Label;
wx.Scale = requestXML.Scale;
wx.PicUrl = requestXML.PicUrl;
wx.reply = _xml;
wx.pid = _pid;
try
{
wx.Update();
}
catch (Exception ex)
{
wx_logs.MyInsert(ex.Message);
//ex.message;
}
}
}
//微信请求类
public class RequestXML
{
private string toUserName="";
///
/// 消息接收方微信号，一般为公众平台账号微信号
///
public string ToUserName
{
get { return toUserName; }
set { toUserName = value; }
}
private string fromUserName = "";
///
/// 消息发送方微信号
///
public string FromUserName
{
get { return fromUserName; }
set { fromUserName = value; }
}
private string createTime = "";
///
/// 创建时间
///
public string CreateTime
{
get { return createTime; }
set { createTime = value; }
}
private string msgType = "";
///
/// 信息类型 地理位置:location,文本消息:text,消息类型:image
///
public string MsgType
{
get { return msgType; }
set { msgType = value; }
}
private string content = "";
///
/// 信息内容
///
public string Content
{
get { return content; }
set { content = value; }
}
private string location_X = "";
///
/// 地理位置纬度
///
public string Location_X
{
get { return location_X; }
set { location_X = value; }
}
private string location_Y = "";
///
/// 地理位置经度
///
public string Location_Y
{
get { return location_Y; }
set { location_Y = value; }
}
private string scale = "";
///
/// 地图缩放大小
///
public string Scale
{
get { return scale; }
set { scale = value; }
}
private string label = "";
///
/// 地理位置信息
///
public string Label
{
get { return label; }
set { label = value; }
}
private string picUrl = "";
///
/// 图片链接，开发者可以用HTTP GET获取
///
public string PicUrl
{
get { return picUrl; }
set { picUrl = value; }
}
} 说明： 其中用到的mijiya类，主要是调用数据库进行关键词匹配自动回复内容，可以根据自己的业务情况编写。
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