136 lines
5.0 KiB
C#
136 lines
5.0 KiB
C#
using System.Web;
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using System.Text;
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using System.Security.Cryptography;
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using System.IO;
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using System.Net;
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using System;
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using System.Collections.Generic;
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using System.Xml;
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namespace Mtxfw.Utility
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{
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/// <summary>
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/// 类名：Core
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/// 功能：支付宝接口公用函数类
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/// 详细：该类是请求、通知返回两个文件所调用的公用函数核心处理文件，不需要修改
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/// 版本：3.3
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/// 修改日期：2012-07-05
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/// 说明：
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/// 以下代码只是为了方便商户测试而提供的样例代码，商户可以根据自己网站的需要，按照技术文档编写,并非一定要使用该代码。
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/// 该代码仅供学习和研究支付宝接口使用，只是提供一个参考。
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/// </summary>
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public class Core
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{
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public Core()
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{
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}
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/// <summary>
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/// 除去数组中的空值和签名参数并以字母a到z的顺序排序
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/// </summary>
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/// <param name="dicArrayPre">过滤前的参数组</param>
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/// <returns>过滤后的参数组</returns>
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public static Dictionary<string, string> FilterPara(SortedDictionary<string, string> dicArrayPre)
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{
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Dictionary<string, string> dicArray = new Dictionary<string, string>();
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foreach (KeyValuePair<string, string> temp in dicArrayPre)
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{
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if (temp.Key.ToLower() != "sign" && temp.Key.ToLower() != "sign_type" && temp.Value != "" && temp.Value != null)
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{
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dicArray.Add(temp.Key, temp.Value);
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}
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}
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return dicArray;
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}
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/// <summary>
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/// 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
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/// </summary>
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/// <param name="sArray">需要拼接的数组</param>
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/// <returns>拼接完成以后的字符串</returns>
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public static string CreateLinkString(Dictionary<string, string> dicArray)
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{
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StringBuilder prestr = new StringBuilder();
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foreach (KeyValuePair<string, string> temp in dicArray)
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{
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prestr.Append(temp.Key + "=" + temp.Value + "&");
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}
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//去掉最後一個&字符
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int nLen = prestr.Length;
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prestr.Remove(nLen-1,1);
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return prestr.ToString();
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}
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/// <summary>
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/// 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串，并对参数值做urlencode
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/// </summary>
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/// <param name="sArray">需要拼接的数组</param>
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/// <param name="code">字符编码</param>
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/// <returns>拼接完成以后的字符串</returns>
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public static string CreateLinkStringUrlencode(Dictionary<string, string> dicArray, Encoding code)
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{
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StringBuilder prestr = new StringBuilder();
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foreach (KeyValuePair<string, string> temp in dicArray)
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{
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prestr.Append(temp.Key + "=" + HttpUtility.UrlEncode(temp.Value, code) + "&");
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}
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//去掉最後一個&字符
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int nLen = prestr.Length;
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prestr.Remove(nLen - 1, 1);
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return prestr.ToString();
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}
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/// <summary>
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/// 写日志，方便测试（看网站需求，也可以改成把记录存入数据库）
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/// </summary>
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/// <param name="sWord">要写入日志里的文本内容</param>
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public static void LogResult(string sWord)
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{
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string strPath = HttpContext.Current.Server.MapPath("log");
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strPath = strPath + "\\" + DateTime.Now.ToString().Replace(":", "") + ".txt";
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StreamWriter fs = new StreamWriter(strPath, false, System.Text.Encoding.Default);
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fs.Write(sWord);
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fs.Close();
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}
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/// <summary>
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/// 获取文件的md5摘要
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/// </summary>
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/// <param name="sFile">文件流</param>
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/// <returns>MD5摘要结果</returns>
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public static string GetAbstractToMD5(Stream sFile)
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{
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MD5 md5 = new MD5CryptoServiceProvider();
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byte[] result = md5.ComputeHash(sFile);
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StringBuilder sb = new StringBuilder(32);
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for (int i = 0; i < result.Length; i++)
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{
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sb.Append(result[i].ToString("x").PadLeft(2, '0'));
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}
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return sb.ToString();
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}
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/// <summary>
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/// 获取文件的md5摘要
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/// </summary>
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/// <param name="dataFile">文件流</param>
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/// <returns>MD5摘要结果</returns>
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public static string GetAbstractToMD5(byte[] dataFile)
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{
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MD5 md5 = new MD5CryptoServiceProvider();
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byte[] result = md5.ComputeHash(dataFile);
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StringBuilder sb = new StringBuilder(32);
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for (int i = 0; i < result.Length; i++)
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{
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sb.Append(result[i].ToString("x").PadLeft(2, '0'));
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}
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return sb.ToString();
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}
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}
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} |