C# 利用AT指令开发短信功能

论坛中看到的AT发送短信的代码，可以学习用

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1. namespace ModemImpl {  
2.     public class Modem {  
3.         public bool IsOpen { get { return isOpen; } }  
4.    
5.         public Modem(string portName) {  
6.             this.portName = portName;  
7.    
8.             Regex r1 = new Regex(@"^\+CMTI\:");  
9.             Regex r2 = new Regex(@"^\+CMGR\:");  
10.             Regex r3 = new Regex(@"^\+RING\:");  
11.    
12.             ATBeginHandlerMap.Add(r1, OnBeginCMTI);  
13.             ATBeginHandlerMap.Add(r2, OnBeginCMGR);  
14.             ATBeginHandlerMap.Add(r3, OnBeginRING);  
15.    
16.             ATHandlerMap.Add(r1, OnCMTI);  
17.             ATHandlerMap.Add(r2, OnCMGR);  
18.             ATHandlerMap.Add(r3, OnRING);  
19.    
20.             responseMap.Add(typeof(SendMessageRequest), OnCMGSResponse);  
21.         }  
22.    
23.         public void Open() {  
24.             port = new SerialPort(portName);  
25.             port.Encoding = Encoding.Default;  
26.             port.ReadTimeout = 30000;  
27.             port.WriteTimeout = 30000;  
28.             port.BaudRate = 9600;  
29.             port.RtsEnable = true;  
30.    
31.             port.Open();  
32.             port.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);  
33.    
34.             AddRequestToQueue(new SettingReuqest("AT").Execute(port));  
35.             Thread.Sleep(50);  
36.             AddRequestToQueue(new SettingReuqest("ATE0").Execute(port));  
37.             AddRequestToQueue(new SettingReuqest("AT+CMGF=1").Execute(port));  
38.             AddRequestToQueue(new SettingReuqest("AT+CNMI=2,1").Execute(port));  
39.             AddRequestToQueue(new SettingReuqest("AT+CSMP=49,167,0,8").Execute(port));  
40.    
41.             isOpen = true;  
42.         }  
43.    
44.         public void Close() {  
45.             port.DataReceived -= port_DataReceived;  
46.             port.Close();  
47.             isOpen = false;  
48.         }  
49.    
50.         public void Send(Message arg) {  
51.             if (arg.Text.Length > 70) {  
52.                 throw new ArgumentOutOfRangeException("短信不能超过70个字符");  
53.             }  
54.    
55.             AddRequestToQueue(new SendMessageRequest(arg).Execute(port));  
56.         }  
57.    
58.         // ----------------------------------------------------------------------  
59.         private void port_DataReceived(object sender, SerialDataReceivedEventArgs e) {  
60.             string line = string.Empty;  
61.    
62.             try {  
63.                 while (port.BytesToRead > 0) {  
64.                     line = port.ReadLine();  
65.                     if (!string.IsNullOrEmpty(line) && "\r" != line) {  
66.                         Console.WriteLine(line);  
67.                         receiveBuffer.Add(line);  
68.    
69.                         if (!isInterrupt) {  
70.                             if (IsBeginInterrupt(line)) {  
71.                                 if (IsEndInterrupt()) {  
72.                                     EndInterrupt();  
73.                                 }  
74.                             } else {  
75.                                 string c = line.TrimEnd('\r');  
76.                                 if ("OK" == c || "ERROR" == c) {  
77.                                     var response = new ModemResponse(receiveBuffer);  
78.                                     response.Request = requestQueue.Dequeue();  
79.                                     Type t = response.Request.GetType();  
80.                                     if (responseMap.ContainsKey(t)) {  
81.                                         responseMap[t](response);  
82.                                     }  
83.                                     receiveBuffer.Clear();  
84.                                 }  
85.                             }  
86.                         } else {  
87.                             if (IsEndInterrupt()) {  
88.                                 EndInterrupt();  
89.                             }  
90.                         }  
91.                     }  
92.                 }  
93.             } catch (Exception ex) {  
94.                 Trace.WriteLine(ex);  
95.             }  
96.         }  
97.    
98.         private void EndInterrupt() {  
99.             interruptHandler(receiveBuffer);  
100.    
101.             beginInterruptHandler = null;  
102.             interruptHandler = null;  
103.             receiveBuffer.Clear();  
104.         }  
105.    
106.         private bool IsEndInterrupt() {  
107.             Trace.Assert(beginInterruptHandler != null);  
108.             bool result = false;  
109.             if (beginInterruptHandler(receiveBuffer)) {  
110.                 result = true;  
111.             }  
112.             return result;  
113.         }  
114.    
115.         private bool IsBeginInterrupt(string arg) {  
116.             bool result = false;  
117.    
118.             foreach (var each in ATBeginHandlerMap.Keys) {  
119.                 if (each.IsMatch(arg)) {  
120.                     beginInterruptHandler = ATBeginHandlerMap[each];  
121.                     interruptHandler = ATHandlerMap[each];  
122.                     result = true;  
123.                     break;  
124.                 }  
125.             }  
126.    
127.             return result;  
128.         }  
129.    
130.         private bool OnBeginCMTI(List<string> content) {  
131.             return true;  
132.         }  
133.    
134.         private void OnCMTI(List<string> content) {  
135.             // +CMTI:"SM",1  
136.             Regex pattern = new Regex(@"^\+CMTI:.+,(\d+)");  
137.             Match m = pattern.Match(content[0]);  
138.             index = Convert.ToInt32(m.Groups[1].Value);  
139.    
140.             AddRequestToQueue(new RetrieveMessageReuqest(index).Execute(port));  
141.         }  
142.    
143.         private bool OnBeginCMGR(List<string> content) {  
144.             return (content.Count == 3);  
145.         }  
146.    
147.         private void OnCMGR(List<string> content) {  
148.             Regex pattern = new Regex("^\\+CMGR:.+,\"(\\S+)\",");  
149.    
150.             Match m = pattern.Match(content[0]);  
151.             string address = m.Groups[1].Value;  
152.             if (address.StartsWith("+86")) {  
153.                 address = address.Substring(3);  
154.             }  
155.             string content1 = content[1].TrimEnd('\r');  
156.             if (content1.StartsWith("050003")) {  
157.                 content1 = content1.Substring(12);  
158.             }  
159.    
160.             Message message = new Message(address, MessageHelper.MessageDecode(content1));  
161.             message.Raw = content[1].TrimEnd('\r');  
162.             message.Flags = MessageFlags.UNREAD;  
163.             message.CreatedAt = DateTime.Now;  
164.    
165.             DeleteByIndex(index);  
166.             Receive(message);  
167.         }  
168.    
169.         private bool OnBeginRING(List<string> content) {  
170.             return true;  
171.         }  
172.    
173.         private void OnRING(List<string> content) {  
174.    
175.         }  
176.    
177.         private void OnCMGSResponse(ModemResponse response) {  
178.             SendResult(response);  
179.         }  
180.    
181.         private void DeleteByIndex(int index) {  
182.             port.Write(string.Format("AT+CMGD={0}\r", index));  
183.         }  
184.    
185.         private void AddRequestToQueue(ModemMessage arg) {  
186.             if (arg is ModemRequest) {  
187.                 requestQueue.Enqueue(arg as ModemRequest);  
188.             }  
189.         }  
190.    
191.         private List<string> receiveBuffer = new List<string>();  
192.         private ATReceivedEventHandler interruptHandler;  
193.         private ATBeginReceivedEventHandler beginInterruptHandler;  
194.         private bool isInterrupt { get { return beginInterruptHandler != null; } }  
195.    
196.         private Queue<ModemRequest> requestQueue = new Queue<ModemRequest>();  
197.         private Dictionary<Type, ModemResponseHandler> responseMap = new Dictionary<Type, ModemResponseHandler>();  
198.         private Dictionary<Regex, ATBeginReceivedEventHandler> ATBeginHandlerMap = new Dictionary<Regex, ATBeginReceivedEventHandler>();  
199.         private Dictionary<Regex, ATReceivedEventHandler> ATHandlerMap = new Dictionary<Regex, ATReceivedEventHandler>();  
200.         private string portName;  
201.         private SerialPort port;  
202.         private int index;  
203.         private bool isOpen = false;  
204.    
205.         public event MessageReceivedEventHandler Receive;  
206.         public event MessageSendEventHandler SendResult;  
207.     }  
208.    
209.     public abstract class ModemMessage {  
210.         public List<string> Content { get; set; }  
211.         public virtual ModemMessage Execute(SerialPort port) { return this; }  
212.     }  
213.    
214.     public class ModemRequest : ModemMessage {  
215.    
216.     }  
217.    
218.     public class ModemResponse : ModemMessage {  
219.         public ModemRequest Request { get; set; }  
220.    
221.         public ModemResponse(List<string> content) {  
222.             Content = content;  
223.         }  
224.     }  
225.    
226.     public class ModemNotify : ModemMessage { }  
227.     public class SettingReuqest : ModemRequest {  
228.         public SettingReuqest(string command) {  
229.             this.command = command;  
230.         }  
231.    
232.         public override ModemMessage Execute(SerialPort port) {  
233.             base.Execute(port);  
234.    
235.             port.Write(command + "\r");  
236.    
237.             return this;  
238.         }  
239.    
240.         private string command;  
241.     }  
242.     public class SendMessageRequest : ModemRequest {  
243.         public Message Message { get; set; }  
244.    
245.         public SendMessageRequest(Message message) {  
246.             Message = message;  
247.         }  
248.    
249.         public override ModemMessage Execute(SerialPort port) {  
250.             base.Execute(port);  
251.    
252.             try {  
253.                 port.DiscardInBuffer();  
254.                 port.Write(string.Format("AT+CMGS={0}\r", Message.Address));  
255.                 port.DiscardInBuffer();  
256.                 port.Write(MessageHelper.MessageEncode(Message.Text) + ControlZ + "\r");  
257.                 Message.Flags = MessageFlags.SENDED;  
258.                 Message.CreatedAt = DateTime.Now;  
259.             } catch (Exception) {  
260.                 Message.Flags = MessageFlags.SENDFAILED;  
261.                 Message.CreatedAt = DateTime.Now;  
262.                 throw;  
263.             }  
264.    
265.             return this;  
266.         }  
267.    
268.         private const char ControlZ = (char)0x1A;  
269.     }  
270.    
271.     public class RetrieveMessageReuqest : ModemRequest {  
272.         public RetrieveMessageReuqest(int index) {  
273.             this.index = index;  
274.         }  
275.    
276.         public override ModemMessage Execute(SerialPort port) {  
277.             base.Execute(port);  
278.             port.Write(string.Format("AT+CMGR={0}\r", index));  
279.             return this;  
280.         }  
281.    
282.         private int index;  
283.     }  
284.        
285.     public delegate bool ATBeginReceivedEventHandler(List<string> content);  
286.     public delegate void ATReceivedEventHandler(List<string> content);  
287.     public delegate void ModemResponseHandler(ModemResponse response);  
288.     public delegate void MessageReceivedEventHandler(Message arg);  
289.     public delegate void MessageSendEventHandler(ModemResponse response);  
290. }  

namespace ModemImpl {
    public class Modem {
        public bool IsOpen { get { return isOpen; } }
 
        public Modem(string portName) {
            this.portName = portName;
 
            Regex r1 = new Regex(@"^\+CMTI\:");
            Regex r2 = new Regex(@"^\+CMGR\:");
            Regex r3 = new Regex(@"^\+RING\:");
 
            ATBeginHandlerMap.Add(r1, OnBeginCMTI);
            ATBeginHandlerMap.Add(r2, OnBeginCMGR);
            ATBeginHandlerMap.Add(r3, OnBeginRING);
 
            ATHandlerMap.Add(r1, OnCMTI);
            ATHandlerMap.Add(r2, OnCMGR);
            ATHandlerMap.Add(r3, OnRING);
 
            responseMap.Add(typeof(SendMessageRequest), OnCMGSResponse);
        }
 
        public void Open() {
            port = new SerialPort(portName);
            port.Encoding = Encoding.Default;
            port.ReadTimeout = 30000;
            port.WriteTimeout = 30000;
            port.BaudRate = 9600;
            port.RtsEnable = true;
 
            port.Open();
            port.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);
 
            AddRequestToQueue(new SettingReuqest("AT").Execute(port));
            Thread.Sleep(50);
            AddRequestToQueue(new SettingReuqest("ATE0").Execute(port));
            AddRequestToQueue(new SettingReuqest("AT+CMGF=1").Execute(port));
            AddRequestToQueue(new SettingReuqest("AT+CNMI=2,1").Execute(port));
            AddRequestToQueue(new SettingReuqest("AT+CSMP=49,167,0,8").Execute(port));
 
            isOpen = true;
        }
 
        public void Close() {
            port.DataReceived -= port_DataReceived;
            port.Close();
            isOpen = false;
        }
 
        public void Send(Message arg) {
            if (arg.Text.Length > 70) {
                throw new ArgumentOutOfRangeException("短信不能超过70个字符");
            }
 
            AddRequestToQueue(new SendMessageRequest(arg).Execute(port));
        }
 
        // ----------------------------------------------------------------------
        private void port_DataReceived(object sender, SerialDataReceivedEventArgs e) {
            string line = string.Empty;
 
            try {
                while (port.BytesToRead > 0) {
                    line = port.ReadLine();
                    if (!string.IsNullOrEmpty(line) && "\r" != line) {
                        Console.WriteLine(line);
                        receiveBuffer.Add(line);
 
                        if (!isInterrupt) {
                            if (IsBeginInterrupt(line)) {
                                if (IsEndInterrupt()) {
                                    EndInterrupt();
                                }
                            } else {
                                string c = line.TrimEnd('\r');
                                if ("OK" == c || "ERROR" == c) {
                                    var response = new ModemResponse(receiveBuffer);
                                    response.Request = requestQueue.Dequeue();
                                    Type t = response.Request.GetType();
                                    if (responseMap.ContainsKey(t)) {
                                        responseMap[t](response);
                                    }
                                    receiveBuffer.Clear();
                                }
                            }
                        } else {
                            if (IsEndInterrupt()) {
                                EndInterrupt();
                            }
                        }
                    }
                }
            } catch (Exception ex) {
                Trace.WriteLine(ex);
            }
        }
 
        private void EndInterrupt() {
            interruptHandler(receiveBuffer);
 
            beginInterruptHandler = null;
            interruptHandler = null;
            receiveBuffer.Clear();
        }
 
        private bool IsEndInterrupt() {
            Trace.Assert(beginInterruptHandler != null);
            bool result = false;
            if (beginInterruptHandler(receiveBuffer)) {
                result = true;
            }
            return result;
        }
 
        private bool IsBeginInterrupt(string arg) {
            bool result = false;
 
            foreach (var each in ATBeginHandlerMap.Keys) {
                if (each.IsMatch(arg)) {
                    beginInterruptHandler = ATBeginHandlerMap[each];
                    interruptHandler = ATHandlerMap[each];
                    result = true;
                    break;
                }
            }
 
            return result;
        }
 
        private bool OnBeginCMTI(List<string> content) {
            return true;
        }
 
        private void OnCMTI(List<string> content) {
            // +CMTI:"SM",1
            Regex pattern = new Regex(@"^\+CMTI:.+,(\d+)");
            Match m = pattern.Match(content[0]);
            index = Convert.ToInt32(m.Groups[1].Value);
 
            AddRequestToQueue(new RetrieveMessageReuqest(index).Execute(port));
        }
 
        private bool OnBeginCMGR(List<string> content) {
            return (content.Count == 3);
        }
 
        private void OnCMGR(List<string> content) {
            Regex pattern = new Regex("^\\+CMGR:.+,\"(\\S+)\",");
 
            Match m = pattern.Match(content[0]);
            string address = m.Groups[1].Value;
            if (address.StartsWith("+86")) {
                address = address.Substring(3);
            }
            string content1 = content[1].TrimEnd('\r');
            if (content1.StartsWith("050003")) {
                content1 = content1.Substring(12);
            }
 
            Message message = new Message(address, MessageHelper.MessageDecode(content1));
            message.Raw = content[1].TrimEnd('\r');
            message.Flags = MessageFlags.UNREAD;
            message.CreatedAt = DateTime.Now;
 
            DeleteByIndex(index);
            Receive(message);
        }
 
        private bool OnBeginRING(List<string> content) {
            return true;
        }
 
        private void OnRING(List<string> content) {
 
        }
 
        private void OnCMGSResponse(ModemResponse response) {
            SendResult(response);
        }
 
        private void DeleteByIndex(int index) {
            port.Write(string.Format("AT+CMGD={0}\r", index));
        }
 
        private void AddRequestToQueue(ModemMessage arg) {
            if (arg is ModemRequest) {
                requestQueue.Enqueue(arg as ModemRequest);
            }
        }
 
        private List<string> receiveBuffer = new List<string>();
        private ATReceivedEventHandler interruptHandler;
        private ATBeginReceivedEventHandler beginInterruptHandler;
        private bool isInterrupt { get { return beginInterruptHandler != null; } }
 
        private Queue<ModemRequest> requestQueue = new Queue<ModemRequest>();
        private Dictionary<Type, ModemResponseHandler> responseMap = new Dictionary<Type, ModemResponseHandler>();
        private Dictionary<Regex, ATBeginReceivedEventHandler> ATBeginHandlerMap = new Dictionary<Regex, ATBeginReceivedEventHandler>();
        private Dictionary<Regex, ATReceivedEventHandler> ATHandlerMap = new Dictionary<Regex, ATReceivedEventHandler>();
        private string portName;
        private SerialPort port;
        private int index;
        private bool isOpen = false;
 
        public event MessageReceivedEventHandler Receive;
        public event MessageSendEventHandler SendResult;
    }
 
    public abstract class ModemMessage {
        public List<string> Content { get; set; }
        public virtual ModemMessage Execute(SerialPort port) { return this; }
    }
 
    public class ModemRequest : ModemMessage {
 
    }
 
    public class ModemResponse : ModemMessage {
        public ModemRequest Request { get; set; }
 
        public ModemResponse(List<string> content) {
            Content = content;
        }
    }
 
    public class ModemNotify : ModemMessage { }
    public class SettingReuqest : ModemRequest {
        public SettingReuqest(string command) {
            this.command = command;
        }
 
        public override ModemMessage Execute(SerialPort port) {
            base.Execute(port);
 
            port.Write(command + "\r");
 
            return this;
        }
 
        private string command;
    }
    public class SendMessageRequest : ModemRequest {
        public Message Message { get; set; }
 
        public SendMessageRequest(Message message) {
            Message = message;
        }
 
        public override ModemMessage Execute(SerialPort port) {
            base.Execute(port);
 
            try {
                port.DiscardInBuffer();
                port.Write(string.Format("AT+CMGS={0}\r", Message.Address));
                port.DiscardInBuffer();
                port.Write(MessageHelper.MessageEncode(Message.Text) + ControlZ + "\r");
                Message.Flags = MessageFlags.SENDED;
                Message.CreatedAt = DateTime.Now;
            } catch (Exception) {
                Message.Flags = MessageFlags.SENDFAILED;
                Message.CreatedAt = DateTime.Now;
                throw;
            }
 
            return this;
        }
 
        private const char ControlZ = (char)0x1A;
    }
 
    public class RetrieveMessageReuqest : ModemRequest {
        public RetrieveMessageReuqest(int index) {
            this.index = index;
        }
 
        public override ModemMessage Execute(SerialPort port) {
            base.Execute(port);
            port.Write(string.Format("AT+CMGR={0}\r", index));
            return this;
        }
 
        private int index;
    }
     
    public delegate bool ATBeginReceivedEventHandler(List<string> content);
    public delegate void ATReceivedEventHandler(List<string> content);
    public delegate void ModemResponseHandler(ModemResponse response);
    public delegate void MessageReceivedEventHandler(Message arg);
    public delegate void MessageSendEventHandler(ModemResponse response);
}

from：http://blog.youkuaiyun.com/trassion/article/details/8287809