JAIN-SIP(Java API for Integrated Networks - Session Initiation Protocol)是用于实现SIP(Session Initiation Protocol)的Java API。以下是使用JAIN-SIP库编写一个简单的SIP服务器的基本步骤:
1.添加JAIN-SIP库依赖项:
首先,确保在项目中包含JAIN-SIP库。你可以从官方网站或者使用Maven或Gradle等构建工具获取库。
如果使用Maven,可以在pom.xml
文件中添加以下依赖项:
<dependency> <groupId>javax.sip</groupId> <artifactId>jain-sip-api</artifactId> <version>1.2</version> <!-- 使用最新版本 --> </dependency>
如果使用Gradle,可以在build.gradle
文件中添加以下依赖项:
implementation 'javax.sip:jain-sip-api:1.2' // 使用最新版本
2.编写SIP服务器代码:
下面是一个简单的SIP服务器的示例代码,监听在本地IP地址和5060端口上:
import javax.sip.*; import javax.sip.message.*; import javax.sip.header.*; import java.util.Properties; public class SimpleSipServer implements SipListener { private SipFactory sipFactory; private SipStack sipStack; private SipProvider sipProvider; public void init() throws PeerUnavailableException, TransportNotSupportedException, InvalidArgumentException, ObjectInUseException, TooManyListenersException { // Create and set the SIP stack properties Properties properties = new Properties(); properties.setProperty("javax.sip.STACK_NAME", "simpleSipServer"); properties.setProperty("javax.sip.IP_ADDRESS", "127.0.0.1"); properties.setProperty("javax.sip.OUTBOUND_PROXY", "127.0.0.1:5060/UDP"); properties.setProperty("gov.nist.javax.sip.TRACE_LEVEL", "32"); properties.setProperty("gov.nist.javax.sip.DEBUG_LOG", "simpleSipServerDebug.txt"); properties.setProperty("gov.nist.javax.sip.SERVER_LOG", "simpleSipServerLog.txt"); // Create SIP stack sipFactory = SipFactory.getInstance(); sipFactory.setPathName("gov.nist"); sipStack = sipFactory.createSipStack(properties); // Create SIP provider ListeningPoint listeningPoint = sipStack.createListeningPoint("127.0.0.1", 5060, "udp"); sipProvider = sipStack.createSipProvider(listeningPoint); sipProvider.addSipListener(this); } public void processRequest(RequestEvent requestEvent) { // Handle incoming SIP requests here Request request = requestEvent.getRequest(); // Add your logic to process the request } public void processResponse(ResponseEvent responseEvent) { // Handle incoming SIP responses here Response response = responseEvent.getResponse(); // Add your logic to process the response } public void processTimeout(TimeoutEvent timeoutEvent) { // Handle SIP timeouts here } public void processIOException(IOExceptionEvent exceptionEvent) { // Handle SIP I/O exceptions here } public void processTransactionTerminated(TransactionTerminatedEvent transactionTerminatedEvent) { // Handle transaction termination here } public void processDialogTerminated(DialogTerminatedEvent dialogTerminatedEvent) { // Handle dialog termination here } public static void main(String[] args) { try { SimpleSipServer sipServer = new SimpleSipServer(); sipServer.init(); System.out.println("SIP Server is running..."); // Wait forever (you can add your own logic here) while (true) { Thread.sleep(1000); } } catch (Exception e) { e.printStackTrace(); } } }
请注意,此示例中使用的IP地址和端口是本地的,你可能需要根据你的需求更改它们。