用ASP.NET实现微信JS-SDK支付的实例详解
模型层实体类: public class JsEntities { /// <summary> /// 公众号id /// </summary> public string appId { get; set; } /// <summary> /// 时间戳 /// </summary> public string timeStamp { get; set; } /// <summary> /// 随机字符串 /// </summary> public string nonceStr { get; set; } /// <summary> /// 订单详情扩展字符串 /// </summary> public string package { get; set; } /// <summary> /// 签名类型 /// </summary> public string signType { get; set; } /// <summary> /// 签名 /// </summary> public string paySign { get; set; } } public class UnifyEntities { /// <summary> /// 公众账号ID /// </summary> public string appid { get; set; } /// <summary> /// 微信支付分配的商户号 /// </summary> public string mch_id { get; set; } /// <summary> /// 微信支付分配的终端设备号 /// </summary> public string device_info { get; set; } /// <summary> /// 随机字符串，不长于32位 /// </summary> public string nonce_str { get; set; } /// <summary> /// 签名 /// </summary> public string sign { get; set; } /// <summary> /// 商品描述最大长度127 /// </summary> public string body { get; set; } /// <summary> /// 附加数据，原样返回 /// </summary> public string attach { get; set; } /// <summary> /// 商户系统内部的订单号,32 个字符内、可包含字母,确保在商户系统唯一,详细说明 /// </summary> public string out_trade_no { get; set; } /// <summary> /// 订单总金额，单位为分，不能带小数点 /// </summary> public string total_fee { get; set; } /// <summary> /// 终端IP /// </summary> public string spbill_create_ip { get; set; } /// <summary> /// 交易起始时间 /// </summary> public string time_start { get; set; } /// <summary> /// 交易结束时间 /// </summary> public string time_expire { get; set; } /// <summary> /// 接收微信支付成功通知 /// </summary> public string notify_url { get; set; } /// <summary> /// JSAPI、NATIVE、APP /// </summary> public string trade_type { get; set; } /// <summary> /// 用户在商户appid下的唯一标识，trade_type为JSAPI 时，此参数必传 /// </summary> public string openid { get; set; } /// <summary> /// 只在 trade_type 为 NATIVE 时需要填写。此id为二维码中包含的商品ID，商户自行维护。 /// </summary> public string product_id { get; set; } } public class UnifyReceive { /// <summary> /// SUCCESS/FAIL此字段是通信标识，非交易标识，交易是否成功需要查看result_code来判断 /// </summary> public string return_code { get; set; } /// <summary> /// 返回信息，如非空，为错误原因 /// </summary> public string return_msg { get; set; } /// <summary> /// 微信分配的公众账号ID /// </summary> public string appid { get; set; } /// <summary> /// 微信支付分配的商户号 /// </summary> public string mch_id { get; set; } /// <summary> /// 随机字符串，不长于32位 /// </summary> public string nonce_str { get; set; } /// <summary> /// 签名 /// </summary> public string sign { get; set; } /// <summary> /// 业务结果 /// </summary> public string result_code { get; set; } /// <summary> /// 预支付ID /// </summary> public string prepay_id { get; set; } /// <summary> /// 交易类型 /// </summary> public string trade_type { get; set; } /// <summary> /// 二维码链接 /// </summary> public string code_url { get; set; } public UnifyReceive(string xml) {XElement doc = XElement.Parse(xml);return_code = doc.Element("return_code").Value;return_msg = doc.Element("return_msg").Value;if (return_code == "SUCCESS"){appid = doc.Element("appid").Value;mch_id = doc.Element("mch_id").Value;nonce_str = doc.Element("nonce_str").Value;sign = doc.Element("sign").Value;result_code = doc.Element("result_code").Value;if (result_code == "SUCCESS"){trade_type = doc.Element("trade_type").Value;prepay_id = doc.Element("prepay_id").Value;if (trade_type == "NATIVE"){code_url = doc.Element("code_url").Value;}trade_type = doc.Element("trade_type").Value;}} } }TestJs.aspx内容:<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="JsPay.aspx.cs" Inherits="WeChatPayDemo.JsPay" %><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> <script alt="用ASP.NET实现微信JS-SDK支付的实例详解" src="http://code.jquery.com/jquery-1.9.0.js"></script> <script alt="用ASP.NET实现微信JS-SDK支付的实例详解" src="Scripts/wxpay.js"></script> <script> $(function () {$("#submit").click(function () {var OID ="<%=openid%>";alert(OID);$.get("WxPay/WxPay.ashx?action=jspayparam", {body: $("#body").val(),total_fee: $("#price").val(),out_trade_no: $("#order").val(),trade_type: "JSAPI",msgid: "<%=openid%>"}, function (data) {WxPay.Pay(data.appId, data.timeStamp, data.nonceStr, data.package, data.signType, data.paySign, function () {alert("支付成功");});}, "json");}); }) </script></head><body> <form id="form1" runat="server"> <p>商品描述：<input type="text" id="body" />商品价格：<input type="text" id="price" />订单号：<input type="text" id="order" /><input type="button" value="提交订单" id="submit" /> </p> </form></body></html>JsPay.aspx.cs代码: public partial class JsPay : System.Web.UI.Page { public string openid = ""; protected void Page_Load(object sender, EventArgs e) {string code = Request["code"];if (string.IsNullOrEmpty(code)){//如果code没获取成功，重新拉取一遍GetAuthUrl("wxxxxxxxxxxxxxxxxxxxxxxx", "http://www.china101.net/JsPay.aspx");}openid = GetOpenID("wxxxxxxxxxxxxxxxxxxxxxxx", "dsdssdsdsdsdsdsdsdsdsd", JKRequest.GetQueryString("code"), () => { }); } public string GetOpenID(string appid, string secret, string code, Action CallBack) {try{string retdata = Utils.HttpGet(string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", appid, secret, code));.LogHelper.WriteFile(retdata);JObject jobj = (JObject)JsonConvert.DeserializeObject(retdata);string openid = jobj.Value<string>("openid");return openid;}catch (Exception){CallBack();return "";}// return GetUserInfo(access_token, openid); } /// <summary> /// 获取鉴权地址 /// </summary> /// <param name="appid"></param> /// <param name="redirect_url"></param> /// <returns></returns> public void GetAuthUrl(string appid, string redirect_url) {Response.Redirect(string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_base&state=123#wechat_redirect", appid, Utils.UrlEncode(redirect_url))); } }WxPay.ashx代码:/// <summary> /// WxPay 的摘要说明 /// </summary> public class WxPay : IHttpHandler { /// <summary> /// 公众账号ID /// </summary> private string appid = "wxxxxxxxxxxxxxxxx"; /// <summary> /// 商户号 /// </summary> private string mch_id = "12333333333"; /// <summary> /// 通知url /// </summary> private string notify_url = "http://www.china101.net/Notify2.aspx"; /// <summary> /// 密钥 /// </summary> private string key = "chinapagexxxxxxxxxxxxx"; public void ProcessRequest(HttpContext context) {string action = JKRequest.GetQueryString("action");switch (action){case "unifysign":GetUnifySign(context); break;case "jspayparam": GetJsPayParam(context); break;case "nativedynamic": GetPayQr(context); break;} } #region 获取js支付参数 void GetJsPayParam(HttpContext context) {JsEntities jsEntities = new JsEntities(){appId = appid,nonceStr = .Utils.GetRandom(),package = string.Format("prepay_id={0}", GetPrepayId(context)),signType = "MD5",timeStamp = .Utils.ConvertDateTimeInt(DateTime.Now).ToString()};string url, sign;string xmlStr = .Utils.GetUnifyRequestXml<JsEntities>(jsEntities, key, out url, out sign);LogHelper.WriteFile(xmlStr);jsEntities.paySign = sign;context.Response.Write(JsonConvert.SerializeObject(jsEntities)); } #endregion #region 获取预支付ID //-------------------------------------------------------------------------- string GetPrepayId(HttpContext context) {string xml;GetUnifySign(context, out xml);LogHelper.WriteFile("GetPrepayId---71--" + xml);UnifyReceive unifyReceive = new UnifyReceive(.Utils.HttpPost("https://api.mch.weixin.qq.com/pay/unifiedorder", xml));LogHelper.WriteFile("unifyReceive---73--" + unifyReceive.prepay_id);return unifyReceive.prepay_id; } #endregion #region 获取统一签名 void GetUnifySign(HttpContext context) {string xml;context.Response.Write(GetUnifySign(context, out xml)); } #endregion #region 获取统一签名 string GetUnifySign(HttpContext context, out string xml) {string url, sign;xml = WxPayHelper.Utils.GetUnifyUrlXml<UnifyEntities>(GetUnifyEntities(context), key, out url, out sign);return sign; } #endregion #region 获取二维码 void GetPayQr(HttpContext context) {string url = GetPayUrl(context);WxPayHelper.Utils.GetQrCode(url); } #endregion #region 获取二维码链接 string GetPayUrl(HttpContext context) {string xml;GetUnifySign(context, out xml);WxPayHelper.Utils.WriteTxt(xml);UnifyReceive unifyReceive = new UnifyReceive(WxPayHelper.Utils.HttpPost("https://api.mch.weixin.qq.com/pay/unifiedorder", xml));return unifyReceive.code_url; } #endregion #region 获取统一支付接口参数对象 UnifyEntities GetUnifyEntities(HttpContext context) {string msgid = JKRequest.GetQueryString("msgid");LogHelper.WriteFile("115---------"+msgid);UnifyEntities unify = new UnifyEntities{appid = appid,body = JKRequest.GetQueryString("body"),mch_id = mch_id,nonce_str = WxPayHelper.Utils.GetRandom(),out_trade_no = JKRequest.GetQueryString("out_trade_no"),notify_url = notify_url,spbill_create_ip = JKRequest.GetIP(),trade_type = JKRequest.GetQueryString("trade_type"),total_fee = JKRequest.GetQueryString("total_fee")};if (unify.trade_type == "NATIVE"){unify.product_id = msgid;}else{unify.openid = msgid;}return unify; } #endregion public bool IsReusable {get{return false;} } }Utils.cs代码: public class Utils { #region MD5加密 public static string MD5(string pwd) {MD5 md5 = new MD5CryptoServiceProvider();byte[] data = System.Text.Encoding.Default.GetBytes(pwd);byte[] md5data = md5.ComputeHash(data);md5.Clear();string str = "";for (int i = 0; i < md5data.Length; i++){str += md5data[i].ToString("x").PadLeft(2, '0');}return str; } /// <summary> /// 获取文件的md5 /// </summary> /// <param name="filepath">文件路径，url路径</param> /// <returns>md5字符串</returns> string GetMD5HashFromFile(string filepath) {try{WebClient wc = new WebClient();var file = wc.OpenRead(new Uri(filepath));System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();byte[] retVal = md5.ComputeHash(file);file.Close();StringBuilder sb = new StringBuilder();for (int i = 0; i < retVal.Length; i++){sb.Append(retVal[i].ToString("x2"));}return sb.ToString();}catch (Exception ex){throw new Exception("GetMD5HashFromFile() fail,error:" + ex.Message);} } #endregion #region 对象转换处理 /// <summary> /// 判断对象是否为Int32类型的数字 /// </summary> /// <param name="Expression"></param> /// <returns></returns> public static bool IsNumeric(object expression) {if (expression != null)return IsNumeric(expression.ToString());return false; } /// <summary> /// 判断对象是否为Int32类型的数字 /// </summary> /// <param name="Expression"></param> /// <returns></returns> public static bool IsNumeric(string expression) {if (expression != null){string str = expression;if (str.Length > 0 && str.Length <= 11 && Regex.IsMatch(str, @"^[-]?[0-9]*[.]?[0-9]*$")){if ((str.Length < 10) || (str.Length == 10 && str[0] == '1') || (str.Length == 11 && str[0] == '-' && str[1] == '1'))return true;}}return false; } /// <summary> /// 是否为Double类型 /// </summary> /// <param name="expression"></param> /// <returns></returns> public static bool IsDouble(object expression) {if (expression != null)return Regex.IsMatch(expression.ToString(), @"^([0-9])[0-9]*(.w*)?$");return false; } /// <summary> /// 检测是否符合email格式 /// </summary> /// <param name="strEmail">要判断的email字符串</param> /// <returns>判断结果</returns> public static bool IsValidEmail(string strEmail) {return Regex.IsMatch(strEmail, @"^[w.]+([-]w+)*@[A-Za-z0-9-_]+[.][A-Za-z0-9-_]"); } public static bool IsValidDoEmail(string strEmail) {return Regex.IsMatch(strEmail, @"^@(([[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.)|(([w-]+.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(]?)$"); } /// <summary> /// 检测是否是正确的Url /// </summary> /// <param name="strUrl">要验证的Url</param> /// <returns>判断结果</returns> public static bool IsURL(string strUrl) {return Regex.IsMatch(strUrl, @"^(http|https)://([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9-]+.)*[a-zA-Z0-9-]+.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{1,10}))(:[0-9]+)*(/($|[a-zA-Z0-9.,?'\+&%$#=~_-]+))*$"); } /// <summary> /// 将字符串转换为数组 /// </summary> /// <param name="str">字符串</param> /// <returns>字符串数组</returns> public static string[] GetStrArray(string str) {return str.Split(new char[',']); } /// <summary> /// 将数组转换为字符串 /// </summary> /// <param name="list">List</param> /// <param name="speater">分隔符</param> /// <returns>String</returns> public static string GetArrayStr(List<string> list, string speater) {StringBuilder sb = new StringBuilder();for (int i = 0; i < list.Count; i++){if (i == list.Count - 1){sb.Append(list[i]);}else{sb.Append(list[i]);sb.Append(speater);}}return sb.ToString(); } /// <summary> /// object型转换为bool型 /// </summary> /// <param name="strValue">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的bool类型结果</returns> public static bool StrToBool(object expression, bool defValue) {if (expression != null)return StrToBool(expression, defValue);return defValue; } /// <summary> /// string型转换为bool型 /// </summary> /// <param name="strValue">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的bool类型结果</returns> public static bool StrToBool(string expression, bool defValue) {if (expression != null){if (string.Compare(expression, "true", true) == 0)return true;else if (string.Compare(expression, "false", true) == 0)return false;}return defValue; } /// <summary> /// 将对象转换为Int32类型 /// </summary> /// <param name="expression">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的int类型结果</returns> public static int ObjToInt(object expression, int defValue) {if (expression != null)return StrToInt(expression.ToString(), defValue);return defValue; } /// <summary> /// 将字符串转换为Int32类型 /// </summary> /// <param name="expression">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的int类型结果</returns> public static int StrToInt(string expression, int defValue) {if (string.IsNullOrEmpty(expression) || expression.Trim().Length >= 11 || !Regex.IsMatch(expression.Trim(), @"^([-]|[0-9])[0-9]*(.w*)?$"))return defValue;int rv;if (Int32.TryParse(expression, out rv))return rv;return Convert.ToInt32(StrToFloat(expression, defValue)); } /// <summary> /// Object型转换为decimal型 /// </summary> /// <param name="strValue">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的decimal类型结果</returns> public static decimal ObjToDecimal(object expression, decimal defValue) {if (expression != null)return StrToDecimal(expression.ToString(), defValue);return defValue; } /// <summary> /// string型转换为decimal型 /// </summary> /// <param name="strValue">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的decimal类型结果</returns> public static decimal StrToDecimal(string expression, decimal defValue) {if ((expression == null) || (expression.Length > 10))return defValue;decimal intValue = defValue;if (expression != null){bool IsDecimal = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(.w*)?$");if (IsDecimal)decimal.TryParse(expression, out intValue);}return intValue; } /// <summary> /// Object型转换为float型 /// </summary> /// <param name="strValue">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的int类型结果</returns> public static float ObjToFloat(object expression, float defValue) {if (expression != null)return StrToFloat(expression.ToString(), defValue);return defValue; } /// <summary> /// string型转换为float型 /// </summary> /// <param name="strValue">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的int类型结果</returns> public static float StrToFloat(string expression, float defValue) {if ((expression == null) || (expression.Length > 10))return defValue;float intValue = defValue;if (expression != null){bool IsFloat = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(.w*)?$");if (IsFloat)float.TryParse(expression, out intValue);}return intValue; } /// <summary> /// 将对象转换为日期时间类型 /// </summary> /// <param name="str">要转换的字符串</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的int类型结果</returns> public static DateTime StrToDateTime(string str, DateTime defValue) {if (!string.IsNullOrEmpty(str)){DateTime dateTime;if (DateTime.TryParse(str, out dateTime))return dateTime;}return defValue; } /// <summary> /// 将对象转换为日期时间类型 /// </summary> /// <param name="str">要转换的字符串</param> /// <returns>转换后的int类型结果</returns> public static DateTime StrToDateTime(string str) {return StrToDateTime(str, DateTime.Now); } /// <summary> /// 将对象转换为日期时间类型 /// </summary> /// <param name="obj">要转换的对象</param> /// <returns>转换后的int类型结果</returns> public static DateTime ObjectToDateTime(object obj) {return StrToDateTime(obj.ToString()); } /// <summary> /// 将对象转换为日期时间类型 /// </summary> /// <param name="obj">要转换的对象</param> /// <param name="defValue">缺省值</param> /// <returns>转换后的int类型结果</returns> public static DateTime ObjectToDateTime(object obj, DateTime defValue) {return StrToDateTime(obj.ToString(), defValue); } /// <summary> /// 将对象转换为字符串 /// </summary> /// <param name="obj">要转换的对象</param> /// <returns>转换后的string类型结果</returns> public static string ObjectToStr(object obj) {if (obj == null)return "";return obj.ToString().Trim(); } /// <summary> /// 判断是否邮箱 /// </summary> /// <param name="expression"></param> /// <returns></returns> public static bool IsEmail(string expression) {return Regex.IsMatch(expression, @"^([w-.]+)@(([[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.)|(([w-]+.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(]?)$"); } /// <summary> /// 判断是否手机 /// </summary> /// <param name="expression"></param> /// <returns></returns> public static bool IsMobile(string expression) {return Regex.IsMatch(expression, @"^1[3|4|5|6|7|8|9][0-9]{9}$"); } public static bool IsPhone(string telphone) {Regex regex = new Regex(@"^(d{3,4}-)?d{6,8}$");return regex.IsMatch(telphone); } #endregion #region 分割字符串 /// <summary> /// 分割字符串 /// </summary> public static string[] SplitString(string strContent, string strSplit) {if (!string.IsNullOrEmpty(strContent)){if (strContent.IndexOf(strSplit) < 0)return new string[] { strContent };return Regex.Split(strContent, Regex.Escape(strSplit), RegexOptions.IgnoreCase);}elsereturn new string[0] { }; } /// <summary> /// 分割字符串 /// </summary> /// <returns></returns> public static string[] SplitString(string strContent, string strSplit, int count) {string[] result = new string[count];string[] splited = SplitString(strContent, strSplit);for (int i = 0; i < count; i++){if (i < splited.Length)result[i] = splited[i];elseresult[i] = string.Empty;}return result; } #endregion #region 删除最后结尾的一个逗号 /// <summary> /// 删除最后结尾的一个逗号 /// </summary> public static string DelLastComma(string str) {if (str.Length < 1){return "";}return str.Substring(0, str.LastIndexOf(",")); } #endregion #region 删除最后结尾的指定字符后的字符 /// <summary> /// 删除最后结尾的指定字符后的字符 /// </summary> public static string DelLastChar(string str, string strchar) {if (string.IsNullOrEmpty(str))return "";if (str.LastIndexOf(strchar) >= 0 && str.LastIndexOf(strchar) == str.Length - 1){return str.Substring(0, str.LastIndexOf(strchar));}return str; } #endregion #region 生成指定长度的字符串 /// <summary> /// 生成指定长度的字符串,即生成strLong个str字符串 /// </summary> /// <param name="strLong">生成的长度</param> /// <param name="str">以str生成字符串</param> /// <returns></returns> public static string StringOfChar(int strLong, string str) {string ReturnStr = "";for (int i = 0; i < strLong; i++){ReturnStr += str;}return ReturnStr; } #endregion #region 生成日期随机码 /// <summary> /// 生成日期随机码 /// </summary> /// <returns></returns> public static string GetRamCode() {#regionreturn DateTime.Now.ToString("yyyyMMddHHmmssffff");#endregion } #endregion #region 生成随机字母或数字 /// <summary> /// 生成随机数字 /// </summary> /// <param name="length">生成长度</param> /// <returns></returns> public static string Number(int Length) {return Number(Length, false); } /// <summary> /// 生成随机数字 /// </summary> /// <param name="Length">生成长度</param> /// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param> /// <returns></returns> public static string Number(int Length, bool Sleep) {if (Sleep)System.Threading.Thread.Sleep(3);string result = "";System.Random random = new Random();for (int i = 0; i < Length; i++){result += random.Next(10).ToString();}return result; } /// <summary> /// 生成随机字母字符串(数字字母混和) /// </summary> /// <param name="codeCount">待生成的位数</param> public static string GetCheckCode(int codeCount) {string str = string.Empty;int rep = 0;long num2 = DateTime.Now.Ticks + rep;rep++;Random random = new Random(((int)(((ulong)num2) & 0xffffffffL)) | ((int)(num2 >> rep)));for (int i = 0; i < codeCount; i++){char ch;int num = random.Next();if ((num % 2) == 0){ch = (char)(0x30 + ((ushort)(num % 10)));}else{ch = (char)(0x41 + ((ushort)(num % 0x1a)));}str = str + ch.ToString();}return str; } /// <summary> /// 根据日期和随机码生成订单号 /// </summary> /// <returns></returns> public static string GetOrderNumber() {string num = DateTime.Now.ToString("yyMMddHHmmss");//yyyyMMddHHmmssmsreturn num + Number(2).ToString(); } private static int Next(int numSeeds, int length) {byte[] buffer = new byte[length];System.Security.Cryptography.RNGCryptoServiceProvider Gen = new System.Security.Cryptography.RNGCryptoServiceProvider();Gen.GetBytes(buffer);uint randomResult = 0x0;//这里用uint作为生成的随机数for (int i = 0; i < length; i++){randomResult |= ((uint)buffer[i] << ((length - 1 - i) * 8));}return (int)(randomResult % numSeeds); } #endregion #region 截取字符长度 /// <summary> /// 截取字符长度 /// </summary> /// <param name="inputString">字符</param> /// <param name="len">长度</param> /// <returns></returns> public static string CutString(string inputString, int len) {if (string.IsNullOrEmpty(inputString))return "";inputString = DropHTML(inputString);ASCIIEncoding ascii = new ASCIIEncoding();int tempLen = 0;string tempString = "";byte[] s = ascii.GetBytes(inputString);for (int i = 0; i < s.Length; i++){if ((int)s[i] == 63){tempLen += 2;}else{tempLen += 1;}try{tempString += inputString.Substring(i, 1);}catch{break;}if (tempLen > len)break;}//如果截过则加上半个省略号byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString);if (mybyte.Length > len)tempString += "…";return tempString; } #endregion #region 清除HTML标记 public static string DropHTML(string Htmlstring) {if (string.IsNullOrEmpty(Htmlstring)) return "";//删除脚本Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);//删除HTMLHtmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"([rn])[s]+", "", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", """, RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "xa1", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "xa2", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "xa3", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "xa9", RegexOptions.IgnoreCase);Htmlstring = Regex.Replace(Htmlstring, @"(d+);", "", RegexOptions.IgnoreCase);Htmlstring.Replace("<", "");Htmlstring.Replace(">", "");Htmlstring.Replace("rn", "");Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();return Htmlstring; } #endregion #region 清除HTML标记且返回相应的长度 public static string DropHTML(string Htmlstring, int strLen) {return CutString(DropHTML(Htmlstring), strLen); } #endregion #region TXT代码转换成HTML格式 /// <summary> /// 字符串字符处理 /// </summary> /// <param name="chr">等待处理的字符串</param> /// <returns>处理后的字符串</returns> /// //把TXT代码转换成HTML格式 public static String ToHtml(string Input) {StringBuilder sb = new StringBuilder(Input);sb.Replace("&", "&");sb.Replace("<", "<");sb.Replace(">", ">");sb.Replace("rn", "<br />");sb.Replace("n", "<br />");sb.Replace("t", " ");//sb.Replace(" ", " ");return sb.ToString(); } #endregion #region HTML代码转换成TXT格式 /// <summary> /// 字符串字符处理 /// </summary> /// <param name="chr">等待处理的字符串</param> /// <returns>处理后的字符串</returns> /// //把HTML代码转换成TXT格式 public static String ToTxt(String Input) {StringBuilder sb = new StringBuilder(Input);sb.Replace(" ", " ");sb.Replace("<br>", "rn");sb.Replace("<br>", "n");sb.Replace("<br />", "n");sb.Replace("<br />", "rn");sb.Replace("<", "<");sb.Replace(">", ">");sb.Replace("&", "&");return sb.ToString(); } #endregion #region 检测是否有Sql危险字符 /// <summary> /// 检测是否有Sql危险字符 /// </summary> /// <param name="str">要判断字符串</param> /// <returns>判断结果</returns> public static bool IsSafeSqlString(string str) {return !Regex.IsMatch(str, @"[-|;|,|/|(|)|[|]|}|{|%|@|*|!|']"); } /// <summary> /// 检查危险字符 /// </summary> /// <param name="Input"></param> /// <returns></returns> public static string Filter(string sInput) {if (sInput == null || sInput == "")return null;string sInput1 = sInput.ToLower();string output = sInput;string pattern = @"*|and|exec|insert|select|delete|update|count|master|truncate|declare|char(|mid(|chr(|'";if (Regex.Match(sInput1, Regex.Escape(pattern), RegexOptions.Compiled | RegexOptions.IgnoreCase).Success){throw new Exception("字符串中含有非法字符!");}else{output = output.Replace("'", "''");}return output; } /// <summary>/// 检查过滤设定的危险字符 /// </summary>/// <param name="InText">要过滤的字符串 </param>/// <returns>如果参数存在不安全字符，则返回true </returns>public static bool SqlFilter(string word, string InText) {if (InText == null)return false;foreach (string i in word.Split('|')){if ((InText.ToLower().IndexOf(i + " ") > -1) || (InText.ToLower().IndexOf(" " + i) > -1)){return true;}}return false; } #endregion #region 过滤特殊字符 /// <summary> /// 过滤特殊字符 /// </summary> /// <param name="Input"></param> /// <returns></returns> public static string Htmls(string Input) {if (Input != string.Empty && Input != null){string ihtml = Input.ToLower();ihtml = ihtml.Replace("<script", "<script");ihtml = ihtml.Replace("script>", "script>");ihtml = ihtml.Replace("<%", "<%");ihtml = ihtml.Replace("%>", "%>");ihtml = ihtml.Replace("<$", "<$");ihtml = ihtml.Replace("$>", "$>");return ihtml;}else{return string.Empty;} } #endregion #region 检查是否为IP地址 /// <summary> /// 是否为ip /// </summary> /// <param name="ip"></param> /// <returns></returns> public static bool IsIP(string ip) {return Regex.IsMatch(ip, @"^((2[0-4]d|25[0-5]|[01]?dd?).){3}(2[0-4]d|25[0-5]|[01]?dd?)$"); } #endregion #region 获得配置文件节点XML文件的绝对路径 public static string GetXmlMapPath(string xmlName) {return GetMapPath(ConfigurationManager.AppSettings[xmlName].ToString()); } #endregion #region 获得当前绝对路径 /// <summary> /// 获得当前绝对路径 /// </summary> /// <param name="strPath">指定的路径</param> /// <returns>绝对路径</returns> public static string GetMapPath(string strPath) {if (strPath.ToLower().StartsWith("http://")){return strPath;}if (HttpContext.Current != null){return HttpContext.Current.Server.MapPath(strPath);}else //非web程序引用{strPath = strPath.Replace("/", "\");if (strPath.StartsWith("\")){strPath = strPath.Substring(strPath.IndexOf('\', 1)).TrimStart('\');}return System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath);} } #endregion #region 文件操作 /// <summary> /// 删除单个文件 /// </summary> /// <param name="_filepath">文件相对路径</param> public static bool DeleteFile(string _filepath) {if (string.IsNullOrEmpty(_filepath)){return false;}string fullpath = GetMapPath(_filepath);if (File.Exists(fullpath)){File.Delete(fullpath);return true;}return false; } /// <summary> /// 删除上传的文件(及缩略图) /// </summary> /// <param name="_filepath"></param> public static void DeleteUpFile(string _filepath) {if (string.IsNullOrEmpty(_filepath)){return;}string fullpath = GetMapPath(_filepath); //原图if (File.Exists(fullpath)){File.Delete(fullpath);}if (_filepath.LastIndexOf("/") >= 0){string thumbnailpath = _filepath.Substring(0, _filepath.LastIndexOf("/")) + "mall_" + _filepath.Substring(_filepath.LastIndexOf("/") + 1);string fullTPATH = GetMapPath(thumbnailpath); //宿略图if (File.Exists(fullTPATH)){File.Delete(fullTPATH);}} } /// <summary> /// 删除指定文件夹 /// </summary> /// <param name="_dirpath">文件相对路径</param> public static bool DeleteDirectory(string _dirpath) {if (string.IsNullOrEmpty(_dirpath)){return false;}string fullpath = GetMapPath(_dirpath);if (Directory.Exists(fullpath)){Directory.Delete(fullpath, true);return true;}return false; } /// <summary> /// 修改指定文件夹名称 /// </summary> /// <param name="old_dirpath">旧相对路径</param> /// <param name="new_dirpath">新相对路径</param> /// <returns>bool</returns> public static bool MoveDirectory(string old_dirpath, string new_dirpath) {if (string.IsNullOrEmpty(old_dirpath)){return false;}string fulloldpath = GetMapPath(old_dirpath);string fullnewpath = GetMapPath(new_dirpath);if (Directory.Exists(fulloldpath)){Directory.Move(fulloldpath, fullnewpath);return true;}return false; } /// <summary> /// 返回文件大小KB /// </summary> /// <param name="_filepath">文件相对路径</param> /// <returns>int</returns> public static int GetFileSize(string _filepath) {if (string.IsNullOrEmpty(_filepath)){return 0;}string fullpath = GetMapPath(_filepath);if (File.Exists(fullpath)){FileInfo fileInfo = new FileInfo(fullpath);return ((int)fileInfo.Length) / 1024;}return 0; } /// <summary> /// 返回文件扩展名，不含“.” /// </summary> /// <param name="_filepath">文件全名称</param> /// <returns>string</returns> public static string GetFileExt(string _filepath) {if (string.IsNullOrEmpty(_filepath)){return "";}if (_filepath.LastIndexOf(".") > 0){return _filepath.Substring(_filepath.LastIndexOf(".") + 1); //文件扩展名，不含“.”}return ""; } /// <summary> /// 返回文件名，不含路径 /// </summary> /// <param name="_filepath">文件相对路径</param> /// <returns>string</returns> public static string GetFileName(string _filepath) {return _filepath.Substring(_filepath.LastIndexOf(@"/") + 1); } /// <summary> /// 文件是否存在 /// </summary> /// <param name="_filepath">文件相对路径</param> /// <returns>bool</returns> public static bool FileExists(string _filepath) {string fullpath = GetMapPath(_filepath);if (File.Exists(fullpath)){return true;}return false; } #endregion #region 读取或写入cookie /// <summary> /// 写cookie值 /// </summary> /// <param name="strName">名称</param> /// <param name="strValue">值</param> public static void WriteCookie(string strName, string strValue) {HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];if (cookie == null){cookie = new HttpCookie(strName);}cookie.Value = UrlEncode(strValue);HttpContext.Current.Response.AppendCookie(cookie); } /// <summary> /// 写cookie值 /// </summary> /// <param name="strName">名称</param> /// <param name="strValue">值</param> public static void WriteCookie(string strName, string key, string strValue) {HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];if (cookie == null){cookie = new HttpCookie(strName);}cookie[key] = UrlEncode(strValue);HttpContext.Current.Response.AppendCookie(cookie); } /// <summary> /// 写cookie值 /// </summary> /// <param name="strName">名称</param> /// <param name="strValue">值</param> public static void WriteCookie(string strName, string key, string strValue, int expires) {HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];if (cookie == null){cookie = new HttpCookie(strName);}cookie[key] = UrlEncode(strValue);cookie.Expires = DateTime.Now.AddMinutes(expires);HttpContext.Current.Response.AppendCookie(cookie); } /// <summary> /// 写cookie值 /// </summary> /// <param name="strName">名称</param> /// <param name="strValue">值</param> /// <param name="strValue">过期时间(分钟)</param> public static void WriteCookie(string strName, string strValue, int expires) {HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];if (cookie == null){cookie = new HttpCookie(strName);}cookie.Value = UrlEncode(strValue);cookie.Expires = DateTime.Now.AddMinutes(expires);HttpContext.Current.Response.AppendCookie(cookie); } /// <summary> /// 读cookie值 /// </summary> /// <param name="strName">名称</param> /// <returns>cookie值</returns> public static string GetCookie(string strName) {if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null)return UrlDecode(HttpContext.Current.Request.Cookies[strName].Value.ToString());return ""; } /// <summary> /// 读cookie值 /// </summary> /// <param name="strName">名称</param> /// <returns>cookie值</returns> public static string GetCookie(string strName, string key) {if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null && HttpContext.Current.Request.Cookies[strName][key] != null)return UrlDecode(HttpContext.Current.Request.Cookies[strName][key].ToString());return ""; } public static void ClearCookie(string strName) {HttpCookie cookie = new HttpCookie(strName);cookie.Values.Clear();cookie.Expires = DateTime.Now.AddYears(-1);HttpContext.Current.Response.AppendCookie(cookie); } public static void ClearCookie(string strName, string cookiedomain) {HttpCookie cookie = new HttpCookie(strName);cookie.Values.Clear();cookie.Expires = DateTime.Now.AddYears(-1);string text = cookiedomain;if (((text != string.Empty) && (HttpContext.Current.Request.Url.Host.IndexOf(text) > -1)) && IsValidDomain(HttpContext.Current.Request.Url.Host)){cookie.Domain = text;}HttpContext.Current.Response.AppendCookie(cookie); } public static bool IsValidDomain(string host) {Regex regex = new Regex(@"^d+$");if (host.IndexOf(".") == -1){return false;}return !regex.IsMatch(host.Replace(".", string.Empty)); } #endregion #region 替换指定的字符串 /// <summary> /// 替换指定的字符串 /// </summary> /// <param name="originalStr">原字符串</param> /// <param name="oldStr">旧字符串</param> /// <param name="newStr">新字符串</param> /// <returns></returns> public static string ReplaceStr(string originalStr, string oldStr, string newStr) {if (string.IsNullOrEmpty(oldStr)){return "";}return originalStr.Replace(oldStr, newStr); } #endregion #region 显示分页 /// <summary> /// 返回分页页码 /// </summary> /// <param name="pageSize">页面大小</param> /// <param name="pageIndex">当前页</param> /// <param name="totalCount">总记录数</param> /// <param name="linkUrl">链接地址，__id__代表页码</param> /// <param name="centSize">中间页码数量</param> /// <returns></returns> public static string OutPageList(int pageSize, int pageIndex, int totalCount, string linkUrl, int centSize) {//计算页数if (totalCount < 1 || pageSize < 1){return "";}int pageCount = totalCount / pageSize;if (pageCount < 1){return "";}if (totalCount % pageSize > 0){pageCount += 1;}if (pageCount <= 1){return "";}StringBuilder pageStr = new StringBuilder();string pageId = "__id__";string firstBtn = "<a href="" + ReplaceStr(linkUrl, pageId, (pageIndex - 1).ToString()) + ""><</a>";string lastBtn = "<a href="" + ReplaceStr(linkUrl, pageId, (pageIndex + 1).ToString()) + "">></a>";string firstStr = "<a href="" + ReplaceStr(linkUrl, pageId, "1") + "">1</a>";string lastStr = "<a href="" + ReplaceStr(linkUrl, pageId, pageCount.ToString()) + "">" + pageCount.ToString() + "</a>";if (pageIndex <= 1){firstBtn = "<a href="#_"><</a>";}if (pageIndex >= pageCount){lastBtn = "<a href="#_">></a>";}if (pageIndex == 1){firstStr = "<a href="#_">JKRequest.cs代码:/// <summary> /// Request操作类 /// </summary> public class JKRequest { /// <summary> /// 判断当前页面是否接收到了Post请求 /// </summary> /// <returns>是否接收到了Post请求</returns> public static bool IsPost() {return HttpContext.Current.Request.HttpMethod.Equals("POST"); } /// <summary> /// 判断当前页面是否接收到了Get请求 /// </summary> /// <returns>是否接收到了Get请求</returns> public static bool IsGet() {return HttpContext.Current.Request.HttpMethod.Equals("GET"); } /// <summary> /// 返回指定的服务器变量信息 /// </summary> /// <param name="strName">服务器变量名</param> /// <returns>服务器变量信息</returns> public static string GetServerString(string strName) {if (HttpContext.Current.Request.ServerVariables[strName] == null)return "";return HttpContext.Current.Request.ServerVariables[strName].ToString(); } /// <summary> /// 返回上一个页面的地址 /// </summary> /// <returns>上一个页面的地址</returns> public static string GetUrlReferrer() {string retVal = null;if (retVal == null)return "";try{retVal = HttpContext.Current.Request.UrlReferrer.ToString();}catch{}return retVal; } /// <summary> /// 得到当前完整主机头 /// </summary> /// <returns></returns> public static string GetCurrentFullHost() {HttpRequest request = System.Web.HttpContext.Current.Request;if (!request.Url.IsDefaultPort)return string.Format("{0}:{1}", request.Url.Host, request.Url.Port.ToString());return request.Url.Host; } /// <summary> /// 得到主机头 /// </summary> public static string GetHost() {return HttpContext.Current.Request.Url.Host; } /// <summary> /// 得到主机名 /// </summary> public static string GetDnsSafeHost() {return HttpContext.Current.Request.Url.DnsSafeHost; } /// <summary> /// 获取当前请求的原始
