openfire以前的版本，可以在调试时，直接把xml输出到控制台。但现在不能输出了。我跟了下源码。调试输出是由插件 Debugger Plugin 实现的。
位于源码目录：src\plugins\xmldebugger
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public void initializePlugin(PluginManager manager,File pluginDirectory) {
ConnectionManagerImpl connManager = (ConnectionManagerImpl) XMPPServer.getInstance().getConnectionManager();
defaultPortFilter =
new RawPrintFilter(
"C2S");
SocketAcceptor socketAcceptor = connManager.getSocketAcceptor();
if (socketAcceptor !=
null) {
socketAcceptor.getFilterChain().addBefore(
"xmpp",
"rawDebugger",defaultPortFilter);
}
oldPortFilter =
"SSL");
SocketAcceptor sslAcceptor = connManager.getSSLSocketAcceptor();
if (sslAcceptor !=
null) {
sslAcceptor.getFilterChain().addBefore(
"ExComp");
SocketAcceptor componentAcceptor = connManager.getComponentAcceptor();
if (componentAcceptor !=
null) {
componentAcceptor.getFilterChain().addBefore(
"CM");
SocketAcceptor multiplexerAcceptor = connManager.getMultiplexerSocketAcceptor();
if (multiplexerAcceptor !=
null) {
multiplexerAcceptor.getFilterChain().addBefore(
new InterpretedXMLPrinter();
if (JiveGlobals.getBooleanProperty(
"plugin.debugger.interpretedAllowed")) {
InterceptorManager.getInstance().addInterceptor(interpretedPrinter);
}
PropertyEventDispatcher.addListener(
this);
}
从上面已经允许C2S打印日志输出。但是实际上openfire并没有打印C2S日志。再看RawPrintFilter实现：
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/** * MINA filter that prints to the stdout received XML stanzas before they are actually parsed and * also prints XML stanzas as sent to the XMPP entities. Moreover,it also prints information when * a session is closed. * * @author Gaston Dombiak */
public class RawPrintFilter extends IoFilterAdapter {
private boolean enabled =
true;
private String prefix;
private Collection<IoSession> sessions =
new ConcurrentLinkedQueue<IoSession>();
public RawPrintFilter(String prefix) {
this.prefix = prefix;
this.enabled = JiveGlobals.getBooleanProperty(
"plugin.xmldebugger." + prefix.toLowerCase(),
true);
}
@Override
void messageReceived(NextFilter nextFilter,IoSession session,Object message)
throws Exception {
if (enabled && message
instanceof ByteBuffer) {
ByteBuffer byteBuffer = (ByteBuffer) message;
int currentPos = byteBuffer.position();
Charset encoder = Charset.forName(
"UTF-8");
CharBuffer charBuffer = encoder.decode(byteBuffer.asReadOnlyBuffer());
System.out.println(prefix +
" - RECV (" + session.hashCode() +
"): " + charBuffer);
byteBuffer.position(currentPos);
}
super.messageReceived(nextFilter,session,message);
}
void messageSent(NextFilter nextFilter,WriteRequest writeRequest)
throws Exception {
if (enabled && writeRequest.getMessage()
instanceof ByteBuffer) {
System.out.println(prefix +
" - SENT (" + session.hashCode() +
"): " +
Charset.forName(
"UTF-8").decode(((ByteBuffer) writeRequest.getMessage()).asReadOnlyBuffer()));
}
.messageSent(nextFilter,writeRequest);
}
boolean isEnabled() {
return enabled;
}
void setEnabled(
boolean enabled) {
this.enabled = enabled;
JiveGlobals.setProperty(
void shutdown() {
for (IoSession session : sessions) {
session.getFilterChain().remove(
"rawDebugger");
}
sessions =
null;
}
void sessionCreated(NextFilter nextFilter,IoSession session)
// Keep track of sessions using this filter
sessions.add(session);
super.sessionCreated(nextFilter,session);
}
void sessionClosed(NextFilter nextFilter,0); box-sizing: border-box;">// Update list of sessions using this filter
sessions.remove(session);
if (enabled) {
System.out.println(
"CLOSED (" + session.hashCode() +
") ");
}
super.sessionClosed(nextFilter,session);
}
}
在构造函数中，此类定义了一个开关enable。所以要打开c2s，需要设置 plugin.xmldebugger.c2s为 true。 如果要打开ssl打印日志。需要设置plugin.xmldebugger.ssl为true。等等。 如果要打开拦截器日志，则需要设置 plugin.debugger.interpretedAllowed 为 true 。 所以，登录管理端，把它加到服务器-》服务器管理-》系统属性中。xml 可以输出到控制端了。
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