我已经为sip服务器编写了一个代码来测试我的sip客户端。我给了nist.gov作为路径名。但它不起作用。它显示错误。错误是
The peer SIP Stack : nist.gov.javax.sip.SipStackImpl could not be initiated.
Ensure the path has been set
我的Java类如下：
package edu.upf;
import java.net.*;
import java.util.*;
import javax.sip.*;
import javax.sip.address.*;
import javax.sip.header.*;
import javax.sip.message.*;
import javax.swing.*;
import javax.swing.table.*;
/**
*
* @author Alex
*/
public class SipServer extends javax.swing.JFrame implements SipListener {
private SipFactory sipFactory;
private SipStack sipStack;
private SipProvider sipProvider;
private MessageFactory messageFactory;
private HeaderFactory headerFactory;
private AddressFactory addressFactory;
private ListeningPoint listeningPoint;
private Properties properties;
private String ip;
private int port = 8080;
private String protocol = "udp";
private int tag = (new Random()).nextInt();
private Address contactAddress;
private ContactHeader contactHeader;
/**
* Creates new form SipRegistrar
*/
public SipServer() {
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.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPaneTable = new javax.swing.JScrollPane();
jTable = new javax.swing.JTable();
jScrollPaneText = new javax.swing.JScrollPane();
jTextArea = new javax.swing.JTextArea();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("SIP Server");
setLocationByPlatform(true);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowOpened(java.awt.event.WindowEvent evt) {
onOpen(evt);
}
});
jTable.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
},
new String [] {
"Time", "URI", "From", "To", "Call-ID", "CSeq", "Dialog", "Transaction", "Type", "Request/Response"
}
) {
Class[] types = new Class [] {
java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class
};
boolean[] canEdit = new boolean [] {
false, false, false, false, false, false, false, false, false, false
};
public Class getColumnClass(int columnIndex) {
return types [columnIndex];
}
public boolean isCellEditable(int rowIndex, int columnIndex) {
return canEdit [columnIndex];
}
});
jScrollPaneTable.setViewportView(jTable);
jTextArea.setEditable(false);
jTextArea.setColumns(20);
jTextArea.setRows(5);
jScrollPaneText.setViewportView(jTextArea);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPaneTable, javax.swing.GroupLayout.DEFAULT_SIZE, 600, Short.MAX_VALUE)
.addComponent(jScrollPaneText)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPaneTable, javax.swing.GroupLayout.DEFAULT_SIZE, 294, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPaneText, javax.swing.GroupLayout.PREFERRED_SIZE, 127, javax.swing.GroupLayout.PREFERRED_SIZE))
);
pack();
}// </editor-fold>
private void onOpen(java.awt.event.WindowEvent evt) {
try {
this.ip = InetAddress.getLocalHost().getHostAddress();
this.sipFactory = SipFactory.getInstance();
this.sipFactory.setPathName("nist.gov");
this.properties = new Properties();
this.properties.setProperty("javax.sip.STACK_NAME", "stack");
this.sipStack = this.sipFactory.createSipStack(this.properties);
this.messageFactory = this.sipFactory.createMessageFactory();
this.headerFactory = this.sipFactory.createHeaderFactory();
this.addressFactory = this.sipFactory.createAddressFactory();
this.listeningPoint = this.sipStack.createListeningPoint(this.ip, this.port, this.protocol);
this.sipProvider = this.sipStack.createSipProvider(this.listeningPoint);
this.sipProvider.addSipListener(this);
this.contactAddress = this.addressFactory.createAddress("sip:" + this.ip + ":" + this.port);
this.contactHeader = this.headerFactory.createContactHeader(contactAddress);
this.jTextArea.append("Local address: " + this.ip + ":" + this.port + "\n");
}
catch(Exception e) {
JOptionPane.showMessageDialog(this, e.getMessage(), "error", JOptionPane.ERROR_MESSAGE);
}
}
/**
* @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(SipServer.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(SipServer.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(SipServer.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(SipServer.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 SipServer().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JScrollPane jScrollPaneTable;
private javax.swing.JScrollPane jScrollPaneText;
private javax.swing.JTable jTable;
private javax.swing.JTextArea jTextArea;
// End of variables declaration
@Override
public void processRequest(RequestEvent requestEvent) {
// Get the request.
Request request = requestEvent.getRequest();
this.jTextArea.append("\nRECV " + request.getMethod() + " " + request.getRequestURI().toString());
try {
// Get or create the server transaction.
ServerTransaction transaction = requestEvent.getServerTransaction();
if(null == transaction) {
transaction = this.sipProvider.getNewServerTransaction(request);
}
// Update the SIP message table.
this.updateTable(requestEvent, request, transaction);
// Process the request and send a response.
Response response;
if(request.getMethod().equals("REGISTER")) {
// If the request is a REGISTER.
response = this.messageFactory.createResponse(200, request);
((ToHeader)response.getHeader("To")).setTag(String.valueOf(this.tag));
response.addHeader(this.contactHeader);
transaction.sendResponse(response);
this.jTextArea.append(" / SENT " + response.getStatusCode() + " " + response.getReasonPhrase());
}
else if(request.getMethod().equals("INVITE")) {
// If the request is an INVITE.
response = this.messageFactory.createResponse(200, request);
((ToHeader)response.getHeader("To")).setTag(String.valueOf(this.tag));
response.addHeader(this.contactHeader);
transaction.sendResponse(response);
this.jTextArea.append(" / SENT " + response.getStatusCode() + " " + response.getReasonPhrase());
}
else if(request.getMethod().equals("ACK")) {
// If the request is an ACK.
}
else if(request.getMethod().equals("BYE")) {
// If the request is a BYE.
response = this.messageFactory.createResponse(200, request);
((ToHeader)response.getHeader("To")).setTag(String.valueOf(this.tag));
response.addHeader(this.contactHeader);
transaction.sendResponse(response);
this.jTextArea.append(" / SENT " + response.getStatusCode() + " " + response.getReasonPhrase());
}
}
catch(SipException e) {
this.jTextArea.append("\nERROR (SIP): " + e.getMessage());
}
catch(Exception e) {
this.jTextArea.append("\nERROR: " + e.getMessage());
}
}
@Override
public void processResponse(ResponseEvent responseEvent) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void processTimeout(TimeoutEvent timeoutEvent) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void processIOException(IOExceptionEvent exceptionEvent) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void processTransactionTerminated(TransactionTerminatedEvent transactionTerminatedEvent) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void processDialogTerminated(DialogTerminatedEvent dialogTerminatedEvent) {
throw new UnsupportedOperationException("Not supported yet.");
}
private void updateTable(RequestEvent requestEvent, Request request, ServerTransaction transaction) {
// Get the table model.
DefaultTableModel tableModel = (DefaultTableModel) this.jTable.getModel();
// Get the headers.
FromHeader from = (FromHeader)request.getHeader("From");
ToHeader to = (ToHeader)request.getHeader("To");
CallIdHeader callId = (CallIdHeader)request.getHeader("Call-Id");
CSeqHeader cSeq = (CSeqHeader)request.getHeader("CSeq");
// Get the SIP dialog.
Dialog dialog = transaction.getDialog();
// Add a new line to the table.
tableModel.addRow(new Object[] {
(new Date()).toString(),
request.getRequestURI() != null ? request.getRequestURI().toString() : "(unknown)",
from != null ? from.getAddress() : "(unknown)",
to != null ? to.getAddress() : "(unknown)",
callId != null ? callId.getCallId() : "(unknown)",
cSeq != null ? cSeq.getSeqNumber() + " " + cSeq.getMethod() : "(unknown)",
dialog != null ? dialog.getDialogId() : "",
transaction.getBranchId(),
"Request",
request.getMethod() });
}
}
答案 0 :(得分：1)
您似乎只需要将nist.gov替换为gov.nist。