java - 出现错误 javax.sip.PeerUnavailableException : The Peer SIP Stack: gov. nist.javax.sip.SipStackImpl 无法实例化

Question

我在使用以下代码时遇到错误。

我已经包含了 Sip 所需的所有 jar ；但是，我仍然不明白为什么会发生这个错误。你能给我解释一下吗？

我的代码类是:

import java.net.InetAddress;

import java.util.ArrayList;

import java.util.Properties;

import java.util.Random;


import javax.sip.DialogTerminatedEvent;
import javax.sip.IOExceptionEvent;
import javax.sip.ListeningPoint;
import javax.sip.RequestEvent;
import javax.sip.ResponseEvent;
import javax.sip.SipFactory;
import javax.sip.SipListener;
import javax.sip.SipProvider;
import javax.sip.SipStack;
import javax.sip.TimeoutEvent;
import javax.sip.TransactionTerminatedEvent;
import javax.sip.address.Address;
import javax.sip.address.AddressFactory;
import javax.sip.header.CSeqHeader;
import javax.sip.header.CallIdHeader;
import javax.sip.header.ContactHeader;
import javax.sip.header.FromHeader;
import javax.sip.header.HeaderFactory;
import javax.sip.header.MaxForwardsHeader;
import javax.sip.header.ToHeader;
import javax.sip.header.ViaHeader;
import javax.sip.message.MessageFactory;
import javax.sip.message.Request;
import javax.swing.JFrame;

public class SipClient extends JFrame implements SipListener
{
SipFactory sipFactory;          // Used to access the SIP API.
SipStack sipStack;              // The SIP stack.
SipProvider sipProvider;        // Used to send SIP messages.
MessageFactory messageFactory;  // Used to create SIP message factory.
HeaderFactory headerFactory;    // Used to create SIP headers.
AddressFactory addressFactory;  // Used to create SIP URIs.
ListeningPoint listeningPoint;  // SIP listening IP address/port.
Properties properties;          // Other properties.

String ip;                      // The local IP address.
int port = 6060;                // The local port.
String protocol = "udp";        // The local protocol (UDP).
int tag = (new Random()).nextInt(); // The local tag.
Address contactAddress;         // The contact address.
ContactHeader contactHeader;    // The contact header.
public SipClient() 
{
    initComponents();
}

/**
 * This method is called from within the constructor to initialize the     form.
 * WARNING: Do NOT modify this code. The content of this method is always
 * regenerated by the Form Editor.
 */

// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-  BEGIN:initComponents
private void initComponents() {

    scrollPane = new javax.swing.JScrollPane();
    textArea = new javax.swing.JTextArea();
    buttonRegisterStateless = new javax.swing.JButton();
    buttonRegisterStatefull = new javax.swing.JButton();
    buttonInvite = new javax.swing.JButton();
    buttonBye = new javax.swing.JButton();
    textField = new javax.swing.JTextField();
this.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
    setTitle("SIP Client");
    setLocationByPlatform(true);
    addWindowListener(new java.awt.event.WindowAdapter() {
        public void windowOpened(java.awt.event.WindowEvent evt) {
            onOpen(evt);
        }
    });

    textArea.setEditable(false);
    textArea.setColumns(20);
    textArea.setRows(5);
    scrollPane.setViewportView(textArea);

    buttonRegisterStateless.setText("Reg (SL)");
    buttonRegisterStateless.setEnabled(true);
    buttonRegisterStateless.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            onRegisterStateless(evt);
        }
    });

    buttonRegisterStatefull.setText("Reg (SF)");
    buttonRegisterStatefull.setEnabled(true);
    buttonRegisterStatefull.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            onRegisterStatefull(evt);
        }
    });

    buttonInvite.setText("Invite");
    buttonInvite.setEnabled(true);
    buttonInvite.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            onInvite(evt);
        }
    });

    buttonBye.setText("Bye");
    buttonBye.setEnabled(true);
    buttonBye.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            onBye(evt);
        }
    });

    textField.setText("");

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
         layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup(layout.createSequentialGroup().addContainerGap().addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADIN       G)
                .addComponent(scrollPane)
                .addGroup(layout.createSequentialGroup()
                    .addComponent(buttonRegisterStateless, javax.swing.GroupLayout.PREFERRED_SIZE, 90, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(buttonRegisterStatefull, javax.swing.GroupLayout.PREFERRED_SIZE, 90, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(buttonInvite, javax.swing.GroupLayout.PREFERRED_SIZE, 90, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(buttonBye, javax.swing.GroupLayout.PREFERRED_SIZE, 90, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 2, Short.MAX_VALUE))
                .addComponent(textField))
            .addContainerGap())
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(textField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(scrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 230, Short.MAX_VALUE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(buttonRegisterStateless)
                .addComponent(buttonInvite)
                .addComponent(buttonBye)
                .addComponent(buttonRegisterStatefull))
            .addContainerGap())
    );

    pack();
}// </editor-fold>//GEN-END:initComponents

private void onOpen(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_onOpen
    try
    {
        this.ip=InetAddress.getLocalHost().getHostAddress();
        System.out.println(ip);
        this.sipFactory=SipFactory.getInstance();
        this.sipFactory.setPathName("gov.nist");
        this.properties=new Properties();
        this.properties.setProperty("javax.sip.STACK_NAME", "myStack");
        // Create the SIP stack.
        this.sipStack = this.sipFactory.createSipStack(this.properties);
        // Create the SIP message factory.
        this.messageFactory = this.sipFactory.createMessageFactory();
        // Create the SIP header factory.
        this.headerFactory = this.sipFactory.createHeaderFactory();
        // Create the SIP address factory.
        this.addressFactory = this.sipFactory.createAddressFactory();
        // Create the SIP listening point and bind it to the local IP address, port and protocol.
        this.listeningPoint = this.sipStack.createListeningPoint(this.ip, this.port, this.protocol);
        // Create the SIP provider.
        this.sipProvider = this.sipStack.createSipProvider(this.listeningPoint);
        // Add our application as a SIP listener.
        this.sipProvider.addSipListener(this);
        // Create the contact address used for all SIP messages.
        System.out.println("Local address: " + this.ip +" : "+ this.port + "\n");
        this.contactAddress = this.addressFactory.createAddress("sip: "+ this.ip +" : "+ this.port);
        // Create the contact header used for all SIP messages.
        this.contactHeader = this.headerFactory.createContactHeader(contactAddress);

        // Display the local IP address and port in the text area.
        System.out.println("Local address: " + this.ip +" : "+ this.port + "\n");
    }
    catch(Exception e)
    {
        e.printStackTrace();
    }
}//GEN-LAST:event_onOpen

private void onRegisterStateless(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_onRegisterStateless
    try {
        // Get the destination address from the text field.
        Address addressTo = addressFactory.createAddress(textField.getText());
        // Create the request URI for the SIP message.
        javax.sip.address.URI requestURI = addressTo.getURI();
        // Create the SIP message headers.
        // The "Via" headers.
        ArrayList viaHeaders = new ArrayList();
        ViaHeader viaHeader = headerFactory.createViaHeader(ip, port, "udp", null);
        viaHeaders.add(viaHeader);
        // The "Max-Forwards" header.
        MaxForwardsHeader maxForwardsHeader = headerFactory.createMaxForwardsHeader(70);
        // The "Call-Id" header.
        CallIdHeader callIdHeader = sipProvider.getNewCallId();
        // The "CSeq" header.
        CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,"REGISTER");
        // The "From" header.
        FromHeader fromHeader = headerFactory.createFromHeader(contactAddress, String.valueOf(tag));
        // The "To" header.
        ToHeader toHeader = headerFactory.createToHeader(addressTo, null);

        // Create the REGISTER request.
        Request request = messageFactory.createRequest(
            requestURI,
            "REGISTER",
            callIdHeader,
            cSeqHeader,
            fromHeader,
            toHeader,
            viaHeaders,
            maxForwardsHeader);
        // Add the "Contact" header to the request.
        request.addHeader(contactHeader);

        // Send the request statelessly through the SIP provider.
        sipProvider.sendRequest(request);

        // Display the message in the text area.
      textArea.append(
            "Request sent:\n" + request.toString() + "\n\n");
    }
    catch(Exception e) {
        // If an error occurred, display the error.
        textArea.append("Request sent failed: " + e.getMessage() + "\n");
    }
}//GEN-LAST:event_onRegisterStateless

private void onRegisterStatefull(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_onRegisterStatefull
    // A method called when you click on the "Reg (SF)" button.
}//GEN-LAST:event_onRegisterStatefull

private void onInvite(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_onInvite
    // A method called when you click on the "Invite" button.
}//GEN-LAST:event_onInvite

private void onBye(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_onBye
    // A method called when you click on the "Bye" button.
}//GEN-LAST:event_onBye

/**
 * @param args the command line arguments
 */
public static void main(String args[]) {
    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(SipClient.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(SipClient.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(SipClient.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(SipClient.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>

    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() {
        @Override
        public void run() {
            new SipClient().setVisible(true);
        }
    });
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton buttonBye;
private javax.swing.JButton buttonInvite;
private javax.swing.JButton buttonRegisterStatefull;
private javax.swing.JButton buttonRegisterStateless;
private javax.swing.JScrollPane scrollPane;
private javax.swing.JTextArea textArea;
private javax.swing.JTextField textField;
// End of variables declaration//GEN-END:variables
public void processRequest(RequestEvent requestEvent) {
    // A method called when you receive a SIP request.
}

public void processResponse(ResponseEvent responseEvent) {
    // A method called when you receive a SIP request.
}

public void processTimeout(TimeoutEvent timeoutEvent) {
    // A method called when a SIP operation times out.
}

public void processIOException(IOExceptionEvent exceptionEvent) {
    // A method called when a SIP operation results in an I/O error.
}

public void processTransactionTerminated(TransactionTerminatedEvent transactionTerminatedEvent) {
    // A method called when a SIP transaction terminates.
}

public void processDialogTerminated(DialogTerminatedEvent dialogTerminatedEvent) {
    // A method called when a SIP dialog terminates.
  }
}

我也包含了 org.apache.log4j jar，但我仍然收到以下错误:

javax.sip.PeerUnavailableException: The Peer SIP Stack:   gov.nist.javax.sip.SipStackImpl could not be instantiated. Ensure the Path Name has been set.
at javax.sip.SipFactory.createStack(SipFactory.java:324)
at javax.sip.SipFactory.createSipStack(SipFactory.java:152)
at ServerClasses.sc.SipClient.onOpen(SipClient.java:169)
at ServerClasses.sc.SipClient.access$0(SipClient.java:159)
at ServerClasses.sc.SipClient$1.windowOpened(SipClient.java:77)
at java.awt.Window.processWindowEvent(Unknown Source)
at javax.swing.JFrame.processWindowEvent(Unknown Source)
at java.awt.Window.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown  Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: gov.nist.javax.sip.SipStackImpl
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at javax.sip.SipFactory.createStack(SipFactory.java:305)
... 29 more

请帮我解决这个问题。我是 SIP 编程新手。

Answer 1

您需要 jain-sip-api 和 jain-sip-ri jar。通过查看错误，您缺少 ri jar。您可以从此处的存档中获取 jar https://jsip.ci.cloudbees.com/job/jsip/lastSuccessfulBuild/artifact/trunk/jain-sip-1.2.2370.tar.gz