C# 實現發送手機短信，

C# 實現發送手機短信，

現在很多網站都是短信發送的功能，怎麼實現的呢。對於個人站長來說的話，通過使用SMS短信通API接口相對比較劃算和簡單。那怎麼實現呢，步驟如下：

1. 從網上（http://sms.webchinese.cn/）申請賬號，記住用戶名，密碼會發到手機上，這僅是登陸密碼。注冊後會送5條短信、和3條彩信的發送量。

2.查看SMS短信通API下行接口（http://sms.webchinese.cn/api.shtml），然後獲取秘鑰，其實就是加密後的登錄密碼。開始敲代碼，相關代碼如下：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;

namespace Y_PostSms
{
    public class YMethod
    {
        private string THE_UID = ""; //用戶名
        private string THE_KEY = ""; //接口秘鑰

        /// <summary>返回UTF-8編碼發送接口地址</summary>
        /// <param name="receivePhoneNumber">目的手機號碼（多個手機號請用半角逗號隔開）</param>
        /// <param name="receiveSms">短信內容，最多支持400個字，普通短信70個字/條，長短信64個字/條計費</param>
        /// <returns></returns>
        public string GetPostUrl(string smsMob, string smsText)
        {
            string postUrl = "http://utf8.sms.webchinese.cn/?Uid=" + THE_UID + "&key=" + THE_KEY + "&smsMob=" + smsMob + "&smsText=" + smsText;
            return postUrl;
        }

        /// <summary> 發送短信，得到返回值</summary>
        public string PostSmsInfo(string url)
        {
            //調用時只需要把拼成的URL傳給該函數即可。判斷返回值即可
            string strRet = null;

            if (url == null || url.Trim().ToString() == "")
            {
                return strRet;
            }
            string targeturl = url.Trim().ToString();
            try
            {
                HttpWebRequest hr = (HttpWebRequest)WebRequest.Create(targeturl);
                hr.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)";
                hr.Method = "GET";
                hr.Timeout = 30 * 60 * 1000;
                WebResponse hs = hr.GetResponse();
                Stream sr = hs.GetResponseStream();
                StreamReader ser = new StreamReader(sr, Encoding.Default);
                strRet = ser.ReadToEnd();
            }
            catch (Exception ex)
            {
                strRet = null;
            }
            return strRet;
        }

        /// <summary>確認返回信息 </summary>
        public string GetResult(string strRet)
        {
            int result = 0;
            try
            {
                result = int.Parse(strRet);
                switch (result)
                {
                    case -1:
                        strRet = "沒有該用戶賬戶";
                        break;
                    case -2:
                        strRet = "接口密鑰不正確,不是賬戶登陸密碼";
                        break;
                    case -21:
                        strRet = "MD5接口密鑰加密不正確";
                        break;
                    case -3:
                        strRet = "短信數量不足";
                        break;
                    case -11:
                        strRet = "該用戶被禁用";
                        break;
                    case -14:
                        strRet = "短信內容出現非法字符";
                        break;
                    case -4:
                        strRet = "手機號格式不正確";
                        break;
                    case -41:
                        strRet = "手機號碼為空";
                        break;
                    case -42:
                        strRet = "短信內容為空";
                        break;
                    case -51:
                        strRet = "短信簽名格式不正確,接口簽名格式為：【簽名內容】";
                        break;
                    case -6:
                        strRet = "IP限制";
                        break;
                    default:
                        strRet = "發送短信數量：" + result;
                        break;
                }
            }
            catch (Exception ex)
            {
                strRet = ex.Message;
            }
            return strRet;
        }
    }
}

3. 找在線客服開通發送權限，填寫好簽名，效果圖如下：

源代碼：Y_PostSms.zip