C#版本的微信SDK,项目只需引用库RsCode.WeChat，三步完成微信SDK的调用

一 微信配置

 "Tencent": {
    "WeChat": [
      {
        "Id": "gh_e1c6*",
        "AppId": "wx7c82*",
        "AppSecret": "5a5efeb3b0*",
        "Token": "6LQyNSzUUZ*",
        "EncodingAESKey": "qKgdQuc*",
        "DataFormatter": "xml"
      },
      {
        "Id": "gh_353d*",
        "AppId": "wxa471d*",
        "AppSecret": "a41db9dd*",
        "Token": "",
        "EncodingAESKey": "",
        "DataFormatter": "xml"
      }
    ]
  },

WeChat节点中可以添加多个微信应用，其中DataFormatter的值根据实际的配置，它可以是xml也可以是json

二 配置RsCode.WeChat服务与中间件

 services.AddHttpClient();

//微信公众号
services.AddWeChat(options=>
{ 
   Configuration.GetSection("Tencent:WeChat").Bind(options);
});

 ...
 app.UseWeChat();

三 应用RsCode.WeChat

注入IWeChatClient,调用SendAsync()

获取微信用户信息实例代码

public class OAuthController : Controller
{
   IWeChatClient wechat;
   WeChatOptions WeChatOptions;
   public OAuthController(IWeChatClient weChatClient)
   {
      wechat=weChatClient;
      var appId="wx***"
      WeChatOptions = wechat.UseAppId(appId);
   }

   public ActionResult UserInfo(string code,string state)
   {
      //用code获取accessToken
      var oauthResponse = await wechat.SendAsync<OAuthTokenResponse>(new OAuthTokenRequest(WeChatOptions.AppId, WeChatOptions.AppSecret, code));
      if (oauthResponse.Code == 0)
      {
         //获取微信用户信息
         var wxUser = await wechat.SendAsync<WeChatUserBaseInfoResponse>(new WeChatUserBaseInfoRequest(oauthResponse.AccessToken,oauthResponse.OpenId));
      }
      ....
   }
}

url签名实例

注入 IWechatTokenManager,例IWechatTokenManager tokenManager

 public async Task< IActionResult> OpenMp()
{
   string scheme = HttpContext.Request.Scheme;
   string host=HttpContext.Request.Host.ToString();
   string path = HttpContext.Request.Path;
   if(HttpContext.Request.IsHttps)
   {
         scheme = "https";
   }
   scheme = "https";
   string url = $"{scheme}://{host}{path}";

   var s = await tokenManager.UrlSignature(appId, url);
   
   TempData["signature"] = s;
   TempData["url"] = url;
   return View();
}

四 其它

WeChatTool.GetNonceStr()生成随机数 WeChatTool.GetTimeStamp()生成时间戳

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