微信小程序服务端获取用户解密信息的方法

这篇文章主要介绍了 C#微信小程序服务端获取用户解密信息实例代码的相关资料,需要的朋友可以参考下

C#微信小程序服务端获取用户解密信息实例代码

实现代码：

using AIOWeb.Models; using Newtonsoft.Json; using Newtonsoft.Json.Linq; using System; using System.Collections.Generic; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Web;namespace AIOWeb {/// <summary>/// wxapi 的摘要说明/// </summary>public class wxapi : IHttpHandler{public void ProcessRequest(HttpContext context){context.Response.ContentType = "text/plain";string code = "";string iv = "";string encryptedData = "";try{code = HttpContext.Current.Request.QueryString["code"].ToString();iv = HttpContext.Current.Request.QueryString["iv"].ToString();encryptedData = HttpContext.Current.Request.QueryString["encryptedData"].ToString();}catch (Exception ex){context.Response.Write(ex.ToString());}string Appid = "wxdb2641f85b04f1b3";string Secret = "8591d8cd7197b9197e17b3275329a1e7";string grant_type = "authorization_code";//向微信服务端 使用登录凭证 code 获取 session_key 和 openidstring url = "https://api.weixin.qq.com/sns/jscode2session?appid=" + Appid + "&secret=" + Secret + "&js_code=" + code + "&grant_type=" + grant_type;string type = "utf-8";AIOWeb.Models.GetUsersHelper GetUsersHelper = new AIOWeb.Models.GetUsersHelper();string j = GetUsersHelper.GetUrltoHtml(url, type);//获取微信服务器返回字符串//将字符串转换为json格式JObject jo = (JObject)JsonConvert.DeserializeObject(j);result res = new result();try{//微信服务器验证成功res.openid = jo["openid"].ToString();res.session_key = jo["session_key"].ToString();}catch (Exception){//微信服务器验证失败res.errcode = jo["errcode"].ToString();res.errmsg = jo["errmsg"].ToString();}if (!string.IsNullOrEmpty(res.openid)){//用户数据解密GetUsersHelper.AesIV = iv;GetUsersHelper.AesKey = res.session_key;string result = GetUsersHelper.AESDecrypt(encryptedData);//存储用户数据JObject _usrInfo = (JObject)JsonConvert.DeserializeObject(result);userInfo userInfo = new userInfo();userInfo.openId = _usrInfo["openId"].ToString();try //部分验证返回值中没有unionId{userInfo.unionId = _usrInfo["unionId"].ToString();}catch (Exception){userInfo.unionId = "unionId";}userInfo.nickName = _usrInfo["nickName"].ToString();userInfo.gender = _usrInfo["gender"].ToString();userInfo.city = _usrInfo["city"].ToString();userInfo.province = _usrInfo["province"].ToString();userInfo.country = _usrInfo["country"].ToString();userInfo.avatarUrl = _usrInfo["avatarUrl"].ToString();object watermark = _usrInfo["watermark"].ToString();object appid = _usrInfo["watermark"]["appid"].ToString();object timestamp = _usrInfo["watermark"]["timestamp"].ToString();#region//创建连接池对象（与数据库服务器进行连接）SqlConnection conn = new SqlConnection("server=127.0.0.1;database=Test;uid=sa;pwd=1");//打开连接池conn.Open();//创建命令对象string Qrystr = "SELECT * FROM WeChatUsers WHERE openId='" + userInfo.openId + "'";SqlCommand cmdQry = new SqlCommand(Qrystr, conn);object obj = cmdQry.ExecuteScalar();if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value))){string str = "INSERT INTO WeChatUsers ([UnionId] ,[OpenId],[NickName],[Gender],[City],[Province],[Country],[AvatarUrl],[Appid],1599159808,[Memo],[counts])VALUES('" + userInfo.unionId + "','" + userInfo.openId + "','" + userInfo.nickName + "','" + userInfo.gender + "','" + userInfo.city + "','" + userInfo.province + "','" + userInfo.country + "','" + userInfo.avatarUrl + "','" + appid.ToString() + "','" + timestamp.ToString() + "','来自微信小程序','1')";SqlCommand cmdUp = new SqlCommand(str, conn);// 执行操作try{int row = cmdUp.ExecuteNonQuery();}catch (Exception ex){context.Response.Write(ex.ToString());}}else{//多次访问，记录访问次数counts更新unionId是预防最初没有，后期关联后却仍未记录string str = "UPDATE dbo.WeChatUsers SET counts = counts+1，UnionId = '" + userInfo.unionId + "' WHERE OpenId='" + userInfo.openId + "'";SqlCommand cmdUp = new SqlCommand(str, conn);int row = cmdUp.ExecuteNonQuery();}//关闭连接池conn.Close();#endregion//返回解密后的用户数据context.Response.Write(result);}else{context.Response.Write(j);}}public bool IsReusable{get{return false;}}} }

GetUsersHelper 帮助类

using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Security.Cryptography; using System.Text; using System.Threading.Tasks;namespace AIOWeb.Models {public class GetUsersHelper{/// <summary>/// 获取链接返回数据/// </summary>/// <param name="Url">链接</param>/// <param name="type">请求类型</param>/// <returns></returns>public string GetUrltoHtml(string Url, string type){try{System.Net.WebRequest wReq = System.Net.WebRequest.Create(Url);// Get the response instance.System.Net.WebResponse wResp = wReq.GetResponse();System.IO.Stream respStream = wResp.GetResponseStream();// Dim reader As StreamReader = New StreamReader(respStream)using (System.IO.StreamReader reader = new System.IO.StreamReader(respStream, Encoding.GetEncoding(type))){return reader.ReadToEnd();}}catch (System.Exception ex){return ex.Message;}}#region 微信小程序用户数据解密public static string AesKey;public static string AesIV;/// <summary>/// AES解密/// </summary>/// <param name="inputdata">输入的数据encryptedData</param>/// <param name="AesKey">key</param>/// <param name="AesIV">向量128</param>/// <returns name="result">解密后的字符串</returns>public string AESDecrypt(string inputdata){try{AesIV = AesIV.Replace(" ", "+");AesKey = AesKey.Replace(" ", "+");inputdata = inputdata.Replace(" ", "+");byte[] encryptedData = Convert.FromBase64String(inputdata);RijndaelManaged rijndaelCipher = new RijndaelManaged();rijndaelCipher.Key = Convert.FromBase64String(AesKey); // Encoding.UTF8.GetBytes(AesKey);rijndaelCipher.IV = Convert.FromBase64String(AesIV);// Encoding.UTF8.GetBytes(AesIV);rijndaelCipher.Mode = CipherMode.CBC;rijndaelCipher.Padding = PaddingMode.PKCS7;ICryptoTransform transform = rijndaelCipher.CreateDecryptor();byte[] plainText = transform.TransformFinalBlock(encryptedData, 0, encryptedData.Length);string result = Encoding.UTF8.GetString(plainText);return result;}catch (Exception){return null;}}#endregion} }

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