送给sip学习者sip实例.docx
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送给sip学习者sip实例
网站上关于基于sip的java编程实例实在是太少了，这个严重影响了sip的传播和发展，所以我上传了这个小实验，让大家参考下。
在做实验前，我们需要一些东西：
我的环境：
XP
Eclipse
需要包：
这个需要在网上自己找，或者hi我，我也可以给你们哈。
----XX账号：
时光可见
好了，现在看程序了哈，主要是三个文件。
MessageProcessor.java:
publicinterfaceMessageProcessor
{
publicvoidprocessMessage（Stringsender,Stringmessage）;
publicvoidprocessError（StringerrorMessage）;
publicvoidprocessInfo（StringinfoMessage）;
}
SipLayer.java:
importjava.text.ParseException;
importjava.util.*;
importjavax.sip.*;
importjavax.sip.address.*;
importjavax.sip.header.*;
importjavax.sip.message.*;
publicclassSipLayerimplementsSipListener{
privateMessageProcessormessageProcessor;
privateStringusername;
privateSipStacksipStack;
privateSipFactorysipFactory;
privateAddressFactoryaddressFactory;
privateHeaderFactoryheaderFactory;
privateMessageFactorymessageFactory;
privateSipProvidersipProvider;
/**HereweinitializetheSIPstack.*/
publicSipLayer（Stringusername,Stringip,intport）
throwsPeerUnavailableException,TransportNotSupportedException,
InvalidArgumentException,ObjectInUseException,
TooManyListenersException{
setUsername（username）;
sipFactory=SipFactory.getInstance（）;
sipFactory.setPathName（"gov.nist"）;
Propertiesproperties=newProperties（）;
properties.setProperty（"javax.sip.STACK_NAME","TextClient"）;
properties.setProperty（"javax.sip.IP_ADDRESS",ip）;
//DEBUGGING:
Informationwillgotofiles
//textclient.logandtextclientdebug.log
properties.setProperty（"gov.nist.javax.sip.TRACE_LEVEL","32"）;
properties.setProperty（"gov.nist.javax.sip.SERVER_LOG","textclient.txt"）;
properties.setProperty（"gov.nist.javax.sip.DEBUG_LOG","textclientdebug.log"）;
sipStack=sipFactory.createSipStack（properties）;
headerFactory=sipFactory.createHeaderFactory（）;
addressFactory=sipFactory.createAddressFactory（）;
messageFactory=sipFactory.createMessageFactory（）;
//ListeningPointtcp=sipStack.createListeningPoint（port,"tcp"）;
ListeningPointudp=sipStack.createListeningPoint（port,"udp"）;
//sipProvider=sipStack.createSipProvider（tcp）;
//sipProvider.addSipListener（this）;
//supposeUDPisusedastransport,BobCheng,03-11-10
sipProvider=sipStack.createSipProvider（udp）;
sipProvider.addSipListener（this）;
}
/**
*ThismethodusestheSIPstacktosendamessage.
*/
publicvoidsendMessage（Stringto,Stringmessage）throwsParseException,
InvalidArgumentException,SipException{
SipURIfrom=addressFactory.createSipURI（getUsername（）,getHost（）+":
"+getPort（））;
AddressfromNameAddress=addressFactory.createAddress（from）;
fromNameAddress.setDisplayName（getUsername（））;
FromHeaderfromHeader=headerFactory.createFromHeader（fromNameAddress,"textclientv1.0"）;
Stringusername=to.substring（to.indexOf（":
"）+1,to.indexOf（"@"））;
Stringaddress=to.substring（to.indexOf（"@"）+1）;
SipURItoAddress=addressFactory.createSipURI（username,address）;
AddresstoNameAddress=addressFactory.createAddress（toAddress）;
toNameAddress.setDisplayName（username）;
ToHeadertoHeader=headerFactory.createToHeader（toNameAddress,null）;
SipURIrequestURI=addressFactory.createSipURI（username,address）;
requestURI.setTransportParam（"udp"）;
ArrayListviaHeaders=newArrayList（）;
ViaHeaderviaHeader=headerFactory.createViaHeader（getHost（）,getPort（）,"udp","branch1"）;
viaHeaders.add（viaHeader）;
CallIdHeadercallIdHeader=sipProvider.getNewCallId（）;
CSeqHeadercSeqHeader=headerFactory.createCSeqHeader（1,Request.MESSAGE）;
MaxForwardsHeadermaxForwards=headerFactory.createMaxForwardsHeader（70）;
Requestrequest=messageFactory.createRequest（requestURI,
Request.MESSAGE,callIdHeader,cSeqHeader,fromHeader,
toHeader,viaHeaders,maxForwards）;
SipURIcontactURI=addressFactory.createSipURI（getUsername（）,getHost（））;
contactURI.setPort（getPort（））;
AddresscontactAddress=addressFactory.createAddress（contactURI）;
contactAddress.setDisplayName（getUsername（））;
ContactHeadercontactHeader=headerFactory.createContactHeader（contactAddress）;
request.addHeader（contactHeader）;
ContentTypeHeadercontentTypeHeader=headerFactory.createContentTypeHeader（"text","plain"）;
request.setContent（message,contentTypeHeader）;
sipProvider.sendRequest（request）;
}
/**ThismethodiscalledbytheSIPstackwhenaresponsearrives.*/
publicvoidprocessResponse（ResponseEventevt）{
Responseresponse=evt.getResponse（）;
intstatus=response.getStatusCode（）;
if（（status>=200）&&（status<300））{//Success!
messageProcessor.processInfo（"--Sent"）;
return;
}
messageProcessor.processError（"Previousmessagenotsent:
"+status）;
}
/**
*ThismethodiscalledbytheSIPstackwhenanewrequestarrives.
*/
publicvoidprocessRequest（RequestEventevt）{
Requestreq=evt.getRequest（）;
Stringmethod=req.getMethod（）;
if（!
method.equals（"MESSAGE"））{//badrequesttype.
messageProcessor.processError（"Badrequesttype:
"+method）;
return;
}
FromHeaderfrom=（FromHeader）req.getHeader（"From"）;
messageProcessor.processMessage（from.getAddress（）.toString（）,
newString（req.getRawContent（）））;
Responseresponse=null;
try{//ReplywithOK
response=messageFactory.createResponse（200,req）;
ToHeadertoHeader=（ToHeader）response.getHeader（ToHeader.NAME）;
toHeader.setTag（"888"）;//Thisismandatoryasperthespec.
ServerTransactionst=sipProvider.getNewServerTransaction（req）;
st.sendResponse（response）;
}catch（Throwablee）{
e.printStackTrace（）;
messageProcessor.processError（"Can'tsendOKreply."）;
}
}
/**
*ThismethodiscalledbytheSIPstackwhenthere'snoanswertoa
*message.Notethatthisistreateddifferentlyfromanerrormessage.
*/
publicvoidprocessTimeout（TimeoutEventevt）{
messageProcessor
.processError（"Previousmessagenotsent:
"+"timeout"）;
}
/**
*ThismethodiscalledbytheSIPstackwhenthere'sanasynchronous
*messagetransmissionerror.
*/
publicvoidprocessIOException（IOExceptionEventevt）{
messageProcessor.processError（"Previousmessagenotsent:
"+"I/OException"）;
}
/**
*ThismethodiscalledbytheSIPstackwhenadialog（session）ends.
*/
publicvoidprocessDialogTerminated（DialogTerminatedEventevt）{
}
/**
*ThismethodiscalledbytheSIPstackwhenatransactionends.
*/
publicvoidprocessTransactionTerminated（TransactionTerminatedEventevt）{
}
publicStringgetHost（）{
intport=sipProvider.getListeningPoint（）.getPort（）;
Stringhost=sipStack.getIPAddress（）;
returnhost;
}
publicintgetPort（）{
intport=sipProvider.getListeningPoint（）.getPort（）;
returnport;
}
publicStringgetUsername（）{
returnusername;
}
publicvoidsetUsername（StringnewUsername）{
username=newUsername;
}
publicMessageProcessorgetMessageProcessor（）{
returnmessageProcessor;
}
publicvoidsetMessageProcessor（MessageProcessornewMessageProcessor）{
messageProcessor=newMessageProcessor;
}
}
TextClient.java:
importjava.awt.event.*;
importjavax.swing.*;
import.InetAddress;
publicclassTextClientextendsJFrameimplementsMessageProcessor{
privateSipLayersipLayer;
privateJTextFieldfromAddress;
privateJLabelfromLbl;
privateJLabelreceivedLbl;
privateJTextAreareceivedMessages;
privateJScrollPanereceivedScrollPane;
privateJButtonsendBtn;
privateJLabelsendLbl;
privateJTextFieldsendMessages;
privateJTextFieldtoAddress;
privateJLabeltoLbl;
publicstaticvoidmain（String[]args）{
if（args.length!
=2）{
printUsage（）;
System.exit（-1）;
}
try{
Stringusername=args[0];
intport=Integer.parseInt（args[1]）;
Stringip=InetAddress.getLocalHost（）.getHostAddress（）;
System.out.println（"--username="+username
+"\n--port="+port
+"\n--ip="+ip）;
SipLayersipLayer=newSipLayer（username,ip,port）;
TextClienttc=newTextClient（sipLayer）;
sipLayer.setMessageProcessor（tc）;
//tc.show（）;
tc.setVisible（true）;
}catch（Throwablee）{
System.out.println（"ProbleminitializingtheSIPstack."）;
e.printStackTrace（）;
System.exit（-1）;
}
}
privatestaticvoidprintUsage（）{
System.out.println（"Syntax:
"）;
System.out.println（"java-jartextclient.jar"）;
System.out.println（"whereisthenicknameofthisuser"）;
System.out.println（"andistheportnumbertouse.Usually5060ifnotusedbyanotherprocess."）;
System.out.println（"Example:
"）;
System.out.println（"java-jartextclient.jarsnoopy715061"）;
}
publicTextClient（SipLayersip）{
super（）;
sipLayer=sip;
initWindow（）;
Stringfrom="sip:
"+sip.getUsername（）+"@"+sip.getHost（）+":
"+sip.getPort（）;
this.fromAddress.setText（from）;
}
privatevoidinitWindow（）{
receivedLbl=newJLabel（）;
sendLbl=newJLabel（）;
sendMessages=newJTextField（）;
receivedScrollPane=newJScrollPane（）;
receivedMessages=newJTextArea（）;
fromLbl=newJLabel（）;
fromAddress=newJTextField（）;
toLbl=newJLabel（）;
toAddress=newJTextField（）;
sendBtn=newJButton（）;
getContentPane（）.setLayout（null）;
setTitle（"TextClient"）;
addWindowListener（newWindowAdapter（）{
publicvoidwindowClosing（WindowEventevt）{
System.exit（0）;
}
}）;
receivedLbl.setText（"ReceivedMessages:
"）;
receivedLbl.setAlignmentY（0.0F）;
receivedLbl.setPreferredSize（newjava.awt.Dimension（25,100））;
getContentPane（）.add（receivedLbl）;
receivedLbl.setBounds（5,0,136,20）;
sendLbl.setText（"SendMessage:
"）;
getContentPane（）.add（sendLbl）;
sendLb
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