/// <summary>
/// 微信Token实体类
/// </summary>
public class WeChatTokenEntity
{
public string Access_token { get; set; }
 
public string Expires_in { get; set; }
}

/// <summary>
/// 用户实体信息类
/// </summary>
public class WeChatUserEntity
{
public string Subscribe { get; set; }
 
public string Openid { get; set; }
 
public string Nickname { get; set; }
 
public string Sex { get; set; }
 
public string City { get; set; }
 
public string Province { get; set; }
 
public string Country { get; set; }
 
public string HeadImgUrl { get; set; }
 
public string Subscribe_time { get; set; }
 
public string Language { get; set; }
}

public class WeChatDemo
{
/*
 * 步骤：
 * 1.通过appid和secret请求微信url，得到token
 * 2.通过access_token和openid得到用户信息（头像地址等）
 * 3.通过access_token和media_id得到用户发送的微信消息
 * 
 */
 
 
string appId = "wxxxxxxxxxxxxxx";
string appSecret = "1234567890-==687";
 
string wechatUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}";
 
 
public WeChatDemo()
{
 
}
 
/// <summary>
/// 获取token信息
/// </summary>
/// <returns></returns>
public WeChatTokenEntity GetWechatToken()
{
 //请求的url地址
 string tokenUrl = string.Format(wechatUrl, appId, appSecret);
 WeChatTokenEntity myToken;
 
 try
 {
 //声明并实例化一个WebClient对象
 WebClient client = new WebClient();
 //从执行url下载数据
 byte[] pageData = client.DownloadData(tokenUrl);
 //把原始数据的byte数组转为字符串
 string jsonStr = Encoding.Default.GetString(pageData);
 //初始化一个JavascriptSerializer json解析器
 //序列化注意：需要引用System.Web.Extensions
 JavascriptSerializer jss = new JavascriptSerializer();
 //将字符串反序列化为Token对象
 myToken = jss.Deserialize<WeChatTokenEntity>(jsonStr);
 }
 catch (WebException ex)
 {
 throw ex;
 }
 catch (Exception ex)
 {
 throw ex;
 }
 
 return myToken;
}
 
/// <summary>
/// 获取用户信息
/// </summary>
/// <param name="accessToken"></param>
/// <param name="openId"></param>
/// <returns></returns>
public WeChatUserEntity GetUserIfo(string accessToken, string openId)
{
 WeChatUserEntity wue = new WeChatUserEntity();
 
 string url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token={0}&openid={1}";
 
 url = string.Format(url, accessToken, openId);
 
 try
 {
 WebClient wc = new WebClient();
 byte[] pageData = wc.DownloadData(url);
 string jsonStr = Encoding.UTF8.GetString(pageData);
 JavascriptSerializer jss = new JavascriptSerializer();
 wue = jss.Deserialize<WeChatUserEntity>(jsonStr);
 
 }
 catch (WebException ex)
 {
 throw ex;
 }
 catch (Exception ex)
 {
 throw ex;
 }
 
 return wue;
}
 
public string GetVoice(string accessToken, string mediaId)
{
 string voiceAddress = string.Empty;
 string voiceUrl = "http://file.api.weixin.qq.com/cgi-bin/media/get?access_token={0}&media_id={1}";
 voiceUrl = string.Format(voiceUrl, accessToken, mediaId);
 
 WebClient wc = new WebClient();
 byte[] pageData = wc.DownloadData(voiceUrl);
 string jsonStr = Encoding.UTF8.GetString(pageData);
 
 //TODO:获取声音
 voiceAddress = jsonStr;
 
 return voiceAddress;
}
 
/// <summary>
/// 时间戳转为当前时间
/// </summary>
/// <param name="timeStamp"></param>
/// <returns></returns>
public DateTime TimeStamp2DateTime(string timeStamp)
{
 DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
 long time = long.Parse(timeStamp + "0000000");
 TimeSpan toNow = new TimeSpan(time);
 return dtStart.Add(toNow);
}
 
}

class Program
{
static void Main(string[] args)
{
 WeChatDemo wcd = new WeChatDemo();
 WeChatTokenEntity wte = wcd.GetWechatToken();
 string token = wte.Access_token;
 string openId = "ogNVpt52xxxxxxxxxxxxxxxxxx";
 
 Console.WriteLine("第一步：获得access_token:\n " + token + "\n");
 
 Console.WriteLine("第二步：获得用户信息");
 WeChatUserEntity user = wcd.GetUserIfo(token, openId);
 
 Console.WriteLine("\n昵称：" + user.Nickname);
 Console.WriteLine("国家：" + user.Country);
 Console.WriteLine("省份：" + user.Province);
 Console.WriteLine("城市：" + user.City);
 Console.WriteLine("语言：" + user.Language);
 Console.WriteLine("性别：" + user.Sex);
 Console.WriteLine("OpenId：" + user.Openid);
 Console.WriteLine("是否订阅：" + user.Subscribe);
 Console.WriteLine("时间：" + wcd.TimeStamp2DateTime(user.Subscribe_time));
 Console.WriteLine("头像地址：" + user.HeadImgUrl);
 
 Console.WriteLine("\n第三步：获取微信声音地址");
 string mediaId = "vwvnskvsldkvmsdlvkmdslkvmsld";
 
 string voiceAddress = wcd.GetVoice(token, mediaId);
 Console.WriteLine("声音地址：" + voiceAddress);
 Console.Read();
}
}