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Server.java
资源名称：SIPPhone.zip　[点击查看]
上传用户：pdtewte
上传日期：2021-10-16
资源大小：13k
文件大小：4k
源码类别：

IP电话/视频会议

开发平台：

Java

Server.java：源码内容
  3. import java.net.*;
  5. public class Server 
  6. {
  7. private int port;
  8. private String username;
  9. private DatagramSocket ListenSocket;  //UDP 
  10. private InetAddress localAddr;
  11. private String destMediaIP;
  12. private int destMediaPort;
  14. public Server( String username, int port)
  15. {
  16. this.port = port;
  18. try
  19. {
  20. localAddr = InetAddress.getLocalHost(); //localhost
  22. ListenSocket = new DatagramSocket(this.port); //create udp 
  23. }
  24. catch(Exception X)
  25. {
  27. }
  30.         /* 循环处理客户请求 */
  31. while (true)
  32. {
  33. byte[] buf = new byte[1024];
  34. DatagramPacket packet = new DatagramPacket(buf, buf.length); /* receive packet*/
  35. try 
  36. {
  37. ListenSocket.receive(packet);
  39. if (packet.getLength() < 10) /*length of udp header is 8 ,ip header is 20*/
  40. {
  41. continue;
  42. }
  43. }
  44. catch(Exception X)
  45. {
  47. }
  49. Decode decodeMessage = new Decode(new String(packet.getData()));
  51. //System.out.println("sMediaIP:"+decodeMessage.sMediaIP+"sMediaPort"+decodeMessage.sMediaPort);
  53. /* 对ACK报文的处理函数 */
  54. if (decodeMessage.sPacketType.equalsIgnoreCase("ACK"))
  55. {
  56. System.out.println("呼叫建立");
  57. //Integer i = new Integer(decodeMessage.sMediaPort);
  58. RTPVoiceSender rtpVoiceSender = new RTPVoiceSender(this.destMediaIP,this.destMediaPort);
  59. }
  60. /* 对INVITE报文的处理函数 */
  61.     if (decodeMessage.sPacketType.equalsIgnoreCase("INVITE"))
  62.     {
  63. //System.out.println(decodeMessage.sContactUsername + "(" + decodeMessage.sContactIP + ":" + decodeMessage.sContactPort+")呼入......");
  64.      this.destMediaIP = decodeMessage.sMediaIP;
  65.      Integer i = new Integer(decodeMessage.sMediaPort);
  66.      this.destMediaPort = i.intValue();
  67.     
  68.      String SDP = "v=0rn"
  69. + "o=- 3403572143 3403572143 IN IP4 " + localAddr.getHostAddress() + "rn"
  70.                  + "s=SIPPER for 3CX Phonern"
  71. + "c=IN IP4 " + localAddr.getHostAddress() + "rn"
  72.                  + "t=0 0rn"
  73.                  + "m=audio 5033 RTP/AVP 8 0 2 3 97 110 101rn"
  74.                  + "a=rtpmap:8 PCMA/8000rn"
  75.                  + "a=rtpmap:0 PCMU/8000rn"
  76.                  + "a=rtpmap:2 G726-32/8000rn"
  77.                  + "a=rtpmap:3 GSM/8000rn"
  78.                  + "a=rtpmap:97 iLBC/8000rn"
  79.                  + "a=rtpmap:110 speex/8000rn"
  80.                  + "a=rtpmap:101 telephone-event/8000rn";
  81.     
  82.      String OK = "SIP/2.0 200 OKrn"
  83. + "Via: SIP/2.0/UDP " + decodeMessage.sVia + " ;" + "branch=" + decodeMessage.sBranch + "rn"
  84. + "From:" + decodeMessage.sFROM + "rn"
  85. + "To: " + decodeMessage.sTO + "rn"
  86. + "Call-ID: " + decodeMessage.sCallID + "rn"
  87. + "CSeq: " + decodeMessage.sCSeq + "rn"
  88. + "Contact: <sip:" +this.username+"@"+localAddr.getHostAddress()+":"+this.port + ">rn"
  89. + "Max-Forwards: 70 rn"
  90. + "Server: SIPPER for 3CX Phonern"
  91. + "Allow: INVITE,ACK, BYE, CANCELrn"
  92. + "Content-Type: application/sdprn"
  93. + "Content-Length: "+SDP.length()+"rnrn";
  94.     
  95.         String pdu = OK + SDP;
  96.          
  97.          //System.out.println(pdu);
  99. byte[] buffer = new byte[1024];
  101. buffer = pdu.getBytes();
  103. DatagramPacket packet2 = new DatagramPacket(buffer, buffer.length, packet.getAddress(), packet.getPort());
  105. try 
  106. {
  107. ListenSocket.send(packet2);
  108.     System.out.println("接受呼叫......");
  109. }
  110. catch(Exception X)
  111. {
  113. }
  114.     }
  117.     
  118. }
  119. }
  120. public static void main(String[] args) 
  121. {
  122. Server main = new Server("127.0.0.1",5060);
  124. }
  126. }