C#小程序获取用户手机号和用户openid和昵称服务器端代码

发布：2023/8/24 16:21:54作者：管理员来源：本站浏览次数：874

一、注意事项（先了解微信小程序的规则，知己知彼，才能解决问题）

1、微信小程序获取用户手机号，每次都会弹窗询问

2、获取用户信息（包括昵称、性别、城市、openid等），只弹窗一次（根据手机号做授权验证用不到这里）

3、微信小程序可以利用缓存，但是有时间限制

4、获取手机号和openid—>是需要到自己服务器后台解密—>解密需要用到session_key—>session_key需要微信login接口（从前端）获取code然后传到后台服务器调用微信接口获取

5、通过自己服务器后台使用code获取数据之后，code则会失效

二、前端登录获取Code

官方文档

uni-app

<button @click="login">Login</button>

<button open-type="getPhoneNumber" @getphonenumber="onGetPhoneNumber">getPhoneNumber</button>

</view>

</template>

export default {

data() {

return {}

methods: {

uni.login({

success: (res) => {

console.log("login", res);

}

})

onGetPhoneNumber(e) {

console.log("onGetPhoneNumber", e);

console.log(e.detail.errMsg);

console.log(e.detail.iv);

console.log(e.detail.encryptedData);

uni.showModal({

title: "onGetPhoneNumber",

content: e.detail.errMsg

})

}

</script>

watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h3dDAxMDE_size_16_color_FFFFFF_t_70

三、后端解密

如何查看小程序的AppID和AppSecret？

ASP.NET WEBAPI作服务端开发小程序实现微信授权用户登录实例

版本1

版本2

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 openid

string 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],[Timestamp],[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

}

===============================================后补：实体类========================================

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

namespace AIOWeb.Models

{

public class wechat

{

}

#region 实体类

/// <summary>

/// 微信用户类

/// </summary>

public class userInfo

{

public string openId { get; set; }

public string nickName { get; set; }

public string gender { get; set; }

public string city { get; set; }

public string province { get; set; }

public string country { get; set; }

public string avatarUrl { get; set; }

public string unionId { get; set; }

public data watermark { get; set; }

}

/// <summary>

/// 微信用户数据水印

/// </summary>

public class data

{

public string appid { get; set; }

public string timestamp { get; set; }

}

/// <summary>

/// 微信小程序验证返回结果

/// </summary>

public class result

{

public string openid { get; set; }

public string session_key { get; set; }

public string errcode { get; set; }

public string errmsg { get; set; }

}

#endregion

}

版本3

微信小程序获取手机号需要完成认证，才能获取得到

否则会出现下列情况

一、搭建后台服务器（WebApI）

新建webapi2空控制器 OnLoginController

using Newtonsoft.Json;

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Net;

using System.Net.Http;

using System.Security.Cryptography;

using System.Text;

using System.Web.Http;

using WebApplication1.Models;//引入实体类命名空间

using System.Web.Http.Cors;//跨域请求命名空间

namespace WebApplication1.Controllers

{

//跨域请求

[EnableCors(origins:"*",headers:"*",methods:"*")]

[RoutePrefix("api/OnLogin")]

public class OnLoginController : ApiController

{

[Route("Get")]

[HttpGet]

public object Get(string code)

{

string cod = code;

string html = string.Empty;

string url = "https://api.weixin.qq.com/sns/jscode2session?appid=wxb2f63b12a7371f2a&secret=110dc84617c235b5809a7f5d8d43af3a&js_code="+cod+"&grant_type=authorization_code";

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);

request.Method = "GET";

request.ContentType = "text/html;charset=UTF-8";

HttpWebResponse response = request.GetResponse() as HttpWebResponse;

Stream ioStream = response.GetResponseStream();

StreamReader sr = new StreamReader(ioStream, Encoding.UTF8);

html = sr.ReadToEnd();

sr.Close();

ioStream.Close();

response.Close();

RepParamrep rep = JsonConvert.DeserializeObject<RepParamrep>(html);

return rep;

}

新建实体类RepParamrep ，保存session\_key和open\_id

namespace WebApplication1.Models

{

public class RepParamrep

{

public string session_key { get; set; }

public string openid { get; set; }

}

解析手机号码

\[Route(“Get”)\]

\[HttpGet\]

public string Get(string encryptedData, string iv, string session\_key)

string _telPhone = getPhoneNumber(encryptedData, iv, session_key);

return _telPhone;

}

private string getPhoneNumber(string encryptedData, string IV, string Session_key)

{

try

{

byte[] encryData = Convert.FromBase64String(encryptedData);

RijndaelManaged rijndaelCipher = new RijndaelManaged();

rijndaelCipher.Key = Convert.FromBase64String(Session_key);

rijndaelCipher.IV = Convert.FromBase64String(IV);

rijndaelCipher.Mode = CipherMode.CBC;

rijndaelCipher.Padding = PaddingMode.PKCS7;

ICryptoTransform transform = rijndaelCipher.CreateDecryptor();

byte[] plainText = transform.TransformFinalBlock(encryData, 0, encryData.Length);

string result = Encoding.Default.GetString(plainText);

dynamic model = Newtonsoft.Json.Linq.JToken.Parse(result) as dynamic;

return model.phoneNumber;

}

catch (Exception ex)

{

return "";

}

二、设计前端界面及逻辑

//index.wxss

<view>

<button class="cu-btn bg-blue margin-tb-xs lg" hidden="{

{hid1}}" open-type="getUserInfo" bindgetuserinfo="bindGetUserInfo">授权</button>

<button class="cu-btn bg-blue margin-tb-xs lg" hidden="{

{hid2}}" open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber">进入</button>

</view>

//index.js

const app = getApp();

Page({

data: {

userPhone: '',

userNicheng: '',

hid1: false,

hid2: true

bindGetUserInfo: function(e) {

this.setData({

userNicheng: e.detail.userInfo.nickName,

hid1: true,

hid2: false

})

getPhoneNumber: function(e) {

var that = this;

console.log("getPhoneNumberok" + e.detail.errMsg);

if (e.detail.errMsg == "getPhoneNumber:ok") {

//端口号是由后端服务器生成

wx.request({

url: 'https://localhost:44358/api/OnLogin/Get',

data: {

encryptedData: e.detail.encryptedData,

iv: e.detail.iv,

session_key: app.globalData.session_key

method: "get",

success: function(res) {

console.log(res)

that.setData({

userPhone: res.data

})

fail:function(res){

console.log(res.errMsg)

}

})

}

})

//app.js

App({

globalData:{

session_key:'',

openid:''

onLaunch: function() {

wx.login({

success: res => {

// 发送 res.code 到后台换取 openId, sessionKey, unionId

console.log(res)

if (res.code) {

console.log("code========" + JSON.stringify(res));

//发起网络请求

wx.request({

url: 'https://localhost:44358/api/OnLogin/Get',

data: {

code: res.code

success: data => {

console.log("data" + JSON.stringify(data.data));

this.globalData.session_key = data.data.session_key;

this.globalData.openid = data.data.openid;

console.log("openid" + this.globalData.openid);

fail:data=>{

console.log(data)

}

})

} else {

console.log('登录失败！' + res.errMsg)

}

})

}

})

版本4

<% @ webhandler language=”C#” class=”AverageHandler” %>

using System;

using System.Net;

using System.Web;

using System.Collections.Generic;

using System.Text;

using System.Security.Cryptography;

using System.IO;

using LitJson;

public class AverageHandler : IHttpHandler

{

public bool IsReusable

{ get { return true; } }

public void ProcessRequest(HttpContext ctx)

{

ctx.Response.ContentType = "application/json";

HttpRequest Request = ctx.Request;

string text = Request["encryptedData"];

string IV = Request["iv"];

//小程序appid和appsecret配置

string appid = "小小星星亮晶晶";

string secret = "小小星星亮晶晶";

string code = Request["code"];//微信获取登录的口令

Stream s_re = WebRequest.Create("https://api.weixin.qq.com/sns/jscode2session?appid="+appid+"&secret="+secret+"&js_code="+code+"&grant_type=authorization_code").GetResponse().GetResponseStream();

StreamReader sr = new StreamReader(s_re, Encoding.UTF8);

string strLine = sr.ReadToEnd();

sr.Close();

try

{

JsonData jo = JsonMapper.ToObject(strLine);

string Key = jo["session_key"].ToString();

//string weixinID = jo["openid"].ToString();

string str= AES_decrypt(text,Key,IV);

ctx.Response.Write(str);

}

catch (Exception ex)

{

//return "";

}

public string AES_decrypt(string encryptedDataStr, string key, string iv)

{

RijndaelManaged rijalg = new RijndaelManaged();

//-----------------

//设置 cipher 格式 AES-128-CBC

rijalg.KeySize = 128;

rijalg.Padding = PaddingMode.PKCS7;

rijalg.Mode = CipherMode.CBC;

rijalg.Key = Convert.FromBase64String(key);

rijalg.IV = Convert.FromBase64String(iv);

byte[] encryptedData= Convert.FromBase64String(encryptedDataStr);

//解密

ICryptoTransform decryptor = rijalg.CreateDecryptor(rijalg.Key, rijalg.IV);

string result;

using (MemoryStream msDecrypt = new MemoryStream(encryptedData))

{

using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))

{

using (StreamReader srDecrypt = new StreamReader(csDecrypt))

{

result = srDecrypt.ReadToEnd();

}

return result;

}

　Java中interface接口使用方法详解

分布式事务的四种解决方案　

C#小程序获取用户手机号和用户openid和昵称服务器端代码

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