C # Implementation to send SMS messages

Now many websites are the function of sending text messages, how to realize it. For the personal webmaster, it is relatively cost-effective and simple to use the SMS API interface. How do you do that, the steps are as follows:

1. From the online (http://sms.webchinese.cn/) application account, remember the user name, password will be sent to the phone, this is only the login password. After registration will send 5 text messages, and 3 MMS message send amount.

2. Check the SMS API downstream interface (http://sms.webchinese.cn/api.shtml), and then get the secret key, is actually the encrypted login password. To start tapping the code, the relevant code is as follows:

usingSystem;usingSystem.Collections.Generic;usingSystem.IO;usingSystem.Linq;usingSystem.Net;usingSystem.Text;usingsystem.web;namespacey_postsms{ Public classYmethod {Private stringThe_uid ="";//User name        Private stringThe_key ="";//interface secret key        /// <summary>return UTF-8 encoded send interface address</summary>        /// <param name= "Receivephonenumber" >Purpose Mobile Phone number (multiple mobile phone number, please use a comma separated by commas)</param>        /// <param name= "receivesms" >SMS content, up to 400 words, ordinary SMS 70 words/bar, long and short letter 64 words/bar billing</param>        /// <returns></returns>         Public stringGetposturl (stringSmsmob,stringSmstext) {            stringPostURL ="http://utf8.sms.webchinese.cn/?Uid="+ The_uid +"&key="+ The_key +"&smsmob="+ Smsmob +"&smstext="+Smstext; returnPostURL; }        /// <summary>send SMS, get return value</summary>         Public stringPostsmsinfo (stringURL) {            //You only need to pass the URL of the spell to the function when you call it. The return value can be judged            stringstrret =NULL; if(url = =NULL|| Url. Trim (). ToString () = ="")            {                returnstrret; }            stringTargetUrl =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= -* -* +; WebResponse HS=HR.                GetResponse (); Stream SR=HS.                GetResponseStream (); StreamReader ser=NewStreamReader (SR, Encoding.default); Strret=ser.            ReadToEnd (); }            Catch(Exception ex) {strret=NULL; }            returnstrret; }        /// <summary>Confirm return Information</summary>         Public stringGetResult (stringstrret) {            intresult =0; Try{result=int.                Parse (strret); Switch(Result) { Case-1: Strret="No such user account";  Break;  Case-2: Strret="incorrect interface key, not account login password";  Break;  Case- +: Strret="MD5 Interface key encryption is incorrect";  Break;  Case-3: Strret="insufficient number of SMS messages";  Break;  Case- One: Strret="the user is disabled";  Break;  Case- -: Strret="illegal characters appear in SMS content";  Break;  Case-4: Strret="cell phone number is not formatted correctly";  Break;  Case- A: Strret="cell phone number is empty";  Break;  Case- the: Strret="SMS content is empty";  Break;  Case-Wuyi: Strret="The SMS signature format is incorrect and the interface signature format is: "Signature content"";  Break;  Case-6: Strret="IP Restrictions";  Break; default: Strret="number of messages sent:"+result;  Break; }            }            Catch(Exception ex) {strret=Ex.            Message; }            returnstrret; }    }}

3. Find online customer service to send permission, fill in the signature, as follows:

Source code:y_postsms.zip

C # Implementation to send SMS messages