PHP学习：php微信公众账号开发之前五个坑（一）

PHP编程
 public ActionResult Index()
 {
 if (Request.HttpMethod.ToLower() == "post")
 {
 if (CheckSignature())//验证服务器是否通过
 {
 GetMenuList();//加载菜单
 }
 else
 {
 Response.Write("<h1>Oh</h1><h2>我们相遇在火星吧!!!</h2>");
 Response.End();
 }
 }
 else
 {
 CheckWechat();
 }
 return View();
 }
 
 /// <summary>
 /// 返回随机数表示验证成功
 /// </summary>
 private void CheckWechat()
 {
 if (string.IsNullOrEmpty(Request.QueryString["echoStr"]))
 {
 Response.Write("消息并非来自微信");
 Response.End();
 }
 string echoStr = Request.QueryString["echoStr"];
 if (CheckSignature())
 {
 Response.Write(echoStr);
 Response.End();
 }
 }
/// <summary>
 /// 验证微信签名
 /// </summary>
 /// <returns></returns>
 /// 将token、timestamp、nonce三个参数进行字典序排序
 /// 将三个参数字符串拼接成一个字符串进行sha1加密
 /// 开发者获得加密后的字符串可与signature对比,标识该请求来源于微信.
 private bool CheckSignature()
 {
 string signature = Convert.ToString(Request["signature"]);
 string timestamp = Convert.ToString(Request["timestamp"]);
 string nonce = Convert.ToString(Request["nonce"]);
 string[] ArrTmp = { Token, timestamp, nonce };
 Array.Sort(ArrTmp); //字典排序 
 string tmpStr = string.Join("", ArrTmp);
 tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");
 tmpStr = tmpStr.ToLower();
 if (tmpStr == signature)
 {
 return true;
 }
 else
 {
 return false;
 }
 }

PHP编程
<em id="__mceDel"> { 
 string weixin1 = ""; 
 weixin1 = @" { 
 ""button"":[ 
 { 
 ""type"":""click"", 
 ""name"":""你好!"", 
 ""key"":""hello"" 
 }, 
 { 
 ""type"":""view"", 
 ""name"":""公司简介"", 
 ""url"":""http://www.xnfhtech.com"" 
 }, 
 { 
 ""name"":""产品介绍"", 
 ""sub_button"":[ 
 { 
 ""type"":""click"", 
 ""name"":""产品1"", 
 ""key"":""p1"" 
 }, 
 { 
 ""type"":""click"", 
 ""name"":""产品2"", 
 ""key"":""p2"" 
 }] 
 }] }"; 
 
 string access_token = Tools.WA_GetAccess_Token.IsExistAccess_Token(); 
 string i = this.MenuCreate(menu, access_token); 
 Response.Write(i); 
 }<br><br>
</em>

PHP编程
 public string MenuCreate(string MenuJson, string access_token)
 {
 JavaScriptSerializer Jss = new JavaScriptSerializer();
 string setMenuUrl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token={0}";
 setMenuUrl = string.Format(setMenuUrl, access_token);//获取token、拼凑url
 string respText = WebRequestPostOrGet(setMenuUrl, MenuJson);
 Dictionary<string, object> respDic = (Dictionary<string, object>)Jss.DeserializeObject(respText);
 return respDic["errcode"].ToString();//返回0发布成功
 }
 
/// <summary>
 /// Post/get 提交调用抓取
 /// </summary>
 /// <param name="url">提交地址</param>
 /// <param name="param">参数</param>
 /// <returns>string</returns>
 public string WebRequestPostOrGet(string sUrl, string sParam)
 {
 byte[] bt = System.Text.Encoding.UTF8.GetBytes(sParam);
 Uri uriurl = new Uri(sUrl);
 HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(uriurl);//HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url + (url.IndexOf("?") > -1 ? "" : "?") + param);
 req.Method = "Post";
 req.Timeout = 120 * 1000;
 req.ContentType = "application/x-www-form-urlencoded;";
 req.ContentLength = bt.Length;
 using (Stream reqStream = req.GetRequestStream())//using 使用可以释放using段内的内存
 {
 reqStream.Write(bt, 0, bt.Length);
 reqStream.Flush();
 }
 try
 {
 using (WebResponse res = req.GetResponse())
 {
 //在这里对接收到的页面内容进行处理
 Stream resStream = res.GetResponseStream();
 StreamReader resStreamReader = new StreamReader(resStream, System.Text.Encoding.UTF8);
 string resLine;
 System.Text.StringBuilder resStringBuilder = new System.Text.StringBuilder();
 while ((resLine = resStreamReader.ReadLine()) != null)
 {
  resStringBuilder.Append(resLine + System.Environment.NewLine);
 }
 resStream.Close();
 resStreamReader.Close();
 return resStringBuilder.ToString();
 }
 }
 catch (Exception ex)
 {
 return ex.Message;//url错误时候回报错
 }
 }

PHP编程
/// <summary>
/// 防止每次请求的token两个小时的变化
/// </summary>
public class WA_GetAccess_Token
{
 public WA_GetAccess_Token()
 {
 }
 public static WAEntity.Access_token GetAccess_Token()
 {
 string url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+ ConfigurationManager.AppSettings["AppID"] + "&secret="+ ConfigurationManager.AppSettings["AppSecret"];
 Access_token entity = new Access_token();
 try
 {
 HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
 req.Method = "GET";
 using (WebResponse wr = req.GetResponse())
 {
 HttpWebResponse myResponse = (HttpWebResponse)req.GetResponse();
 StreamReader reader = new StreamReader(myResponse.GetResponseStream(), System.Text.Encoding.UTF8);
 string content = reader.ReadToEnd();
 Access_token token = new Access_token();
 token = JsonHelper.ParseFromJson<Access_token>(content);
 entity.access_token = token.access_token;
 entity.expires_in = token.expires_in;
 }
 }
 catch{ //记录日志}
 return entity;
 }
 /// <summary> 
 /// 根据当前日期 判断Access_Token 是否超期 如果超期返回新的Access_Token 否则返回之前的Access_Token 
 /// </summary> 
 /// <param name="datetime"></param> 
 /// <returns></returns> 
 public static string IsExistAccess_Token()
 {
 try
 {
 string Token = string.Empty;
 DateTime YouXRQ;
 //读取XML文件中的数据,并显示出来
 string filepath = HttpContext.Current.Request.MapPath("~/XMLFile.xml");
 StreamReader str = new StreamReader(filepath, System.Text.Encoding.UTF8);
 XmlDocument xml = new XmlDocument();
 xml.Load(str);
 str.Close();
 str.Dispose();
 Token = xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText;
 YouXRQ = Convert.ToDateTime(xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText);
 if (DateTime.Now > YouXRQ)
 {
 DateTime _youxrq = DateTime.Now;
 WAEntity.Access_token mode = GetAccess_Token();
 xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText = mode.access_token;
 _youxrq = _youxrq.AddSeconds(Convert.ToInt32(mode.expires_in));
 xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText = _youxrq.ToString();
 xml.Save(filepath);
 Token = mode.access_token;
 }
 return Token;
 }
 catch (Exception ex)
 {
 return "";//记录日志
 }
 }
}
 
public class Access_token
{
 public Access_token()
 { }
 public string access_token { get; set; }
 public string expires_in { get; set; }
}
 
public class JsonHelper
{
 /// <summary> 
 /// 生成Json格式 
 /// </summary> 
 /// <typeparam name="T"></typeparam> 
 /// <param name="obj"></param> 
 /// <returns></returns> 
 public static string GetJson<T>(T obj)
 {
 DataContractJsonSerializer json = new DataContractJsonSerializer(obj.GetType());
 using (MemoryStream stream = new MemoryStream())
 {
 json.WriteObject(stream, obj);
 string szJson = Encoding.UTF8.GetString(stream.ToArray()); return szJson;
 }
 }
 /// <summary> 
 /// 获取Json的Model 
 /// </summary> 
 /// <typeparam name="T"></typeparam> 
 /// <param name="szJson"></param> 
 /// <returns></returns> 
 public static T ParseFromJson<T>(string szJson)
 {
 T obj = Activator.CreateInstance<T>();
 using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
 {
 DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
 return (T)serializer.ReadObject(ms);
 }
 }
}

PHP编程
<?xml version="1.0" encoding="utf-8"?>
<xml>
 <Access_Token>获取TOKEN</Access_Token>
 <Access_YouXRQ>2015/9/12 17:56:31</Access_YouXRQ>
</xml>