基本参数

  • 获取appid及secret
  • 获取登录凭证code

登陆你的微信小程序在开发设置里面可以直接看到appid和secret
rRzDMV.jpg
获取登录凭证

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//获取openid
uni.login({
	success: res => {
		var code=res.code;//登录凭证
		 if(code) {
			 uni.request({
			 	url: that.apiRoot + '/Fly_Fp/Fly_Fp_ApplyFor/getuseropenid',
			 	method: 'POST',
			 	data: { ...that.auth,
			 		data: res.code
			 	},
			 	success: (res) => {
			 		//openid
			 		var openId = res.data;
			 	}
			 })
		}
	}
});

请求微信API

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/// <summary>
/// 获取openid
/// </summary>
/// <param name="code">登录凭证</param>
/// <param name="iv"></param>
/// <param name="encryptedData"></param>
/// <returns></returns>
public string ProcessRequest(string code, string iv, string encryptedData)
{
    string Appid = "wx****************";
    string Secret = "****************************";
    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";
    var resData = this.GetUrltoHtml(url, type);
    return resData;
}
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/// <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;
    }
}