1.注册微信小程序
2.安装小程序开发工具
3.实例（显示微信运动步数）
4.后端处理（c#）
一 注册微信小程序
注册地址：https://mp.weixin.qq.com/cgi-bin/registermidpage?action=index&lang=zh_CN&token=
二 安装小程序开发工具
三 实例（显示微信运动步数）
1.app.js 修改
wx.login({
success(res) {
if (res.code) {
// 发起网络请求
wx.request({
url: 'https://localhost:44395/api/WxApiTest/Login',
data: {
code: res.code
},
success:function(re){
wx.setStorageSync('openid', re.data.openid)
wx.setStorageSync('session_key', re.data.session_key)
},
fail:function(re){
console.log(re)
}
})
} else {
console.log('登录失败！' + res.errMsg)
}
}
})
2.读取微信运动步数
wx.getWeRunData({
success(res) {
const encryptedData = res.encryptedData;
wx.request({
url: 'https://localhost:44395/api/WxApiTest/Decrypt',
method: "Post",
header: {
"content-type": "application/x-www-form-urlencoded"
},
data: {
encryptedData: res.encryptedData,
iv: res.iv,
session_key: wx.getStorageSync("session_key")
},
success: function(json) {
console.log(json.data.stepInfoList)
if (json.data.stepInfoList) {
json.data.stepInfoList = json.data.stepInfoList.reverse()
for (var i = 0; i < json.data.stepInfoList.length; i++) {
console.log('日期' + new Date(json.data.stepInfoList[i].timestamp*1000).toLocaleString());
console.log('步数' + json.data.stepInfoList[i].step);
}
}
}
})
}
})
四 后端处理（c#）
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc; namespace WebApplicationVS2019Study.Controllers
{
[Route("api/[controller]")]
[ApiController]
public class WxApiTestController : ControllerBase
{
/// <summary>
/// 微信登录：获取appId、session_key
/// </summary>
/// <returns></returns>
[HttpGet]
[Route("Login")]
public string Login(string code)
{
var appId = "xxx"; //这里是真实的appId
var secret = "xxx"; //这里是真实的secret
var grant_type = "authorization_code"; var url = $"https://api.weixin.qq.com/sns/jscode2session?appid=" + appId + "&secret=" + secret + "&js_code=" + code + "&grant_type=" + grant_type;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "GET";
request.ContentType = "text/html;charset=UTF-8";
request.Timeout = ; HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
string retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close(); return retString;
} [Route("Decrypt")]
[HttpPost]
public string Decrypt()
{
var encryptedData = Request.Form["encryptedData"];
var iv = Request.Form["iv"];
//var openid = Request.Form["openid"];
var session_key = Request.Form["session_key"]; return Decrypto(encryptedData, session_key, iv);
} /// <summary>
/// 解密方法
/// </summary>
private string Decrypto(string encryptedData, string key, string iv)
{
byte[] iv2 = Convert.FromBase64String(iv); if (string.IsNullOrEmpty(encryptedData)) return "";
Byte[] toEncryptArray = Convert.FromBase64String(encryptedData); System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
{
Key = Convert.FromBase64String(key),
IV = iv2,
Mode = System.Security.Cryptography.CipherMode.CBC,
Padding = System.Security.Cryptography.PaddingMode.PKCS7
}; System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateDecryptor();
Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, , toEncryptArray.Length); var res = Encoding.UTF8.GetString(resultArray); return res;
} }
}