为了个人信息的安全，很多网站都有短信发送的功能，究竟是怎么实现的呢？对于个人站长来说的话，通过使用sms短信通api接口相对比较划算和简单。那怎么实现呢，步骤如下：
1. 从网上（http://sms.webchinese.cn/）申请账号，记住用户名，密码会发到手机上，这仅是登陆密码。注册后会送5条短信、和3条彩信的发送量。
2.查看sms短信通api下行接口（http://sms.webchinese.cn/api.shtml），然后获取秘钥，其实就是加密后的登录密码。开始敲代码，相关代码如下：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
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 = ""; //用户名 private string the_key = ""; //接口秘钥 /// <summary>返回utf-8编码发送接口地址</summary> /// <param name="receivephonenumber">目的手机号码（多个手机号请用半角逗号隔开）</param> /// <param name="receivesms">短信内容，最多支持400个字，普通短信70个字/条，长短信64个字/条计费</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> 发送短信，得到返回值</summary> public string postsmsinfo(string url) { //调用时只需要把拼成的url传给该函数即可。判断返回值即可 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>确认返回信息 </summary> public string getresult(string strret) { int result = 0; try { result = int.parse(strret); switch (result) { case -1: strret = "没有该用户账户"; break; case -2: strret = "接口密钥不正确,不是账户登陆密码"; break; case -21: strret = "md5接口密钥加密不正确"; break; case -3: strret = "短信数量不足"; break; case -11: strret = "该用户被禁用"; break; case -14: strret = "短信内容出现非法字符"; break; case -4: strret = "手机号格式不正确"; break; case -41: strret = "手机号码为空"; break; case -42: strret = "短信内容为空"; break; case -51: strret = "短信签名格式不正确,接口签名格式为：【签名内容】"; break; case -6: strret = "ip限制"; break; default: strret = "发送短信数量：" + result; break; } } catch (exception ex) { strret = ex.message; } return strret; } }} |
3. 找在线客服开通发送权限，填写好签名，效果图如下：
通过以上图文并茂的方式给大家介绍了c#怎么实现手机短信发送功能，希望大家喜欢。
