Servlets Servlet是'；启动时未加载
我试图通过SIPServlet初始化一些类。为此，我在mss-2.0.0.FINAL-jboss-as-7.1.2服务器上使用了sip.xml Sip.xml：Servlets Servlet是'；启动时未加载,servlets,deployment,jboss,maven-plugin,sip,Servlets,Deployment,Jboss,Maven Plugin,Sip,我试图通过SIPServlet初始化一些类。为此，我在mss-2.0.0.FINAL-jboss-as-7.1.2服务器上使用了sip.xml Sip.xml： <?xml version="1.0" encoding="UTF-8"?> <sip-app xmlns="http://www.jcp.org/xml/ns/sipservlet" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
<?xml version="1.0" encoding="UTF-8"?>
<sip-app xmlns="http://www.jcp.org/xml/ns/sipservlet" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.jcp.org/xml/ns/sipservlet" xmlns:javaee="http://java.sun.com/xml/ns/javaee"
xmlns:xs="http://www.w3.org/2001/XMLSchema" version="1.1">
<app-name>service.ngsi.multimediaconference</app-name>
<servlet-selection>
<servlet-mapping>
<servlet-name>multimedia-conference</servlet-name>
<pattern>
<equal>
<var>request.method</var>
<value>INVITE</value>
</equal>
</pattern>
</servlet-mapping>
</servlet-selection>
<servlet>
<servlet-name>multimedia-conference</servlet-name>
<servlet-class>com.abc.multimediaconference.ServletSipMultimediaConference</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<session-config>
<session-timeout>120</session-timeout>
</session-config>
</sip-app>
有人有想法吗？SipServlet主要初始化一些对象 ServletSIPMultiMediaConference.java：
@javax.servlet.sip.annotation.SipServlet
public class ServletSipMultimediaConference extends SipServlet {
...
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
ctx = config.getServletContext();
System.out.println("Init SIP Servlet!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
SipFactory sipFactory = (SipFactory) getServletContext().getAttribute(
SipServlet.SIP_FACTORY);
if (sipFactory == null) {
getServletContext().log("SIP Factory is null");
} else {
getServletContext().log("SIP Factory set.");
}
ContextManager.getInstance().setSipFactory(sipFactory);
getServletContext().log("SipServlet MultimediaConference initialized.");
configureThirdPartyCallModule();
}
...
}
@POST
@Path("/inviteParticipant")
@Override
public void inviteParticipant(@QueryParam("sessionId") String sessionId,
@QueryParam("callSessionIdentifier") String callSessionIdentifier,
@QueryParam("participant") String participant) throws PolicyException,
ServiceException {
CallSessionConference conferenceSession = getConferenceSession(null,
callSessionIdentifier);
if (conferenceSession == null)
throw new ServiceException("No conference found using id: "
+ callSessionIdentifier);
conferenceSession.inviteParticipant(participant);
}
Servlet.service() for servlet de.fhg.fokus.ngni.broker.sip.multimediaconference.JaxRsActivator threw exception: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.3.Final.jar:]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.1.Final.jar:1.0.1.Final]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.16.Final.jar:]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.2.Final.jar:7.1.2.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.16.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.16.Final.jar:]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.16.Final.jar:]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679) [jbossweb-7.0.16.Final.jar:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931) [jbossweb-7.0.16.Final.jar:]
at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25]
Caused by: java.lang.NullPointerException
at de.fhg.fokus.ngni.broker.sip.thirdpartycall.Call.<init>(Call.java:100) [classes:]
at de.fhg.fokus.ngni.broker.sip.thirdpartycall.CallSessionThirdParty.createCallee(CallSessionThirdParty.java:141) [classes:]
at de.fhg.fokus.ngni.broker.sip.thirdpartycall.CallSessionThirdParty.<init>(CallSessionThirdParty.java:104) [classes:]
at de.fhg.fokus.ngni.broker.sip.multimediaconference.CallSessionConference.inviteParticipant(CallSessionConference.java:96) [classes:]
at de.fhg.fokus.ngni.broker.sip.multimediaconference.MultimediaConferenceImpl.inviteParticipant(MultimediaConferenceImpl.java:242) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_25]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_25]
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:167) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.3.Final.jar:]
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.3.Final.jar:]
... 19 more
public class ContextManager {
private SipFactory factory;
// private BundleContext bundleContext;
private static ContextManager cm = new ContextManager();
public static ContextManager getInstance() {
return cm;
}
public SipFactory getSipFactory() {
return factory;
}
public void setSipFactory(SipFactory factory) {
this.factory = factory;
}
}
我在调试级别的完整日志如下：您说问题在于SipFactory为空。 但是您发布的代码从未初始化SipFactory。 请看ServletSipMultimediaConference.init（）方法。 您只需检查SipFactory是否为空，但不初始化它：
public class ServletSipMultimediaConference extends SipServlet {
...
@Override
public void init(ServletConfig config) throws ServletException {
...
SipFactory sipFactory = (SipFactory)getServletContext()
.getAttribute(SipServlet.SIP_FACTORY);
if (sipFactory == null) {
getServletContext().log("SIP Factory is null");
// --> Maybe set up a new SIP Factory here?! <--
} else {
getServletContext().log("SIP Factory set.");
}
ContextManager.getInstance().setSipFactory(sipFactory);
...
}
}
公共类ServletSipMultimediaConference扩展了SipServlet{
...
@凌驾
public void init（ServletConfig config）抛出ServletException{
...
SipFactory SipFactory=（SipFactory）getServletContext（）
.getAttribute（SipServlet.SIP_工厂）；
if（sipFactory==null）{
getServletContext（）.log（“SIP工厂为空”）；
//-->可能在这里建立一个新的SIP工厂？！您也可以为org.mobicents类别提供调试日志吗？似乎您的init方法甚至没有被调用
我看到SipServlet在SIP.xml中被定义为注释，注释可能优先于此处。您是否尝试将loadOnStartup=1添加到@javax.Servlet.SIP.annotation.SipServlet注释中
当部署应用程序时，init method logging语句应该在启动时的日志中显示我发现了问题。这是maven/a pom.xml失败！我忘记将以下条目放入我的maven插件配置中：WebContent
maven战争插件
2.2
网络内容
假的
请看“谢谢”，但这对我没有多大帮助。无论我使用的是0还是正整数，这都无关紧要。servlet在启动时根本没有初始化。在进行SIP或HTTP调用时，请共享应用程序的代码和调试日志，因为很难从您输入的信息中识别出哪里出了问题d从未被调用，我也不知道为什么。我不确定“为org.mobicents类别提供调试日志”需要什么。我还尝试了loadOnStartup=0，结果相同。我如何才能将loadOnStartup添加到注释中？@javax.servlet.sip.annotation.SipServlet（loadOnStartup=1）我只尝试了注释（loadOnStartup）w/o sip.xml。还有sip.xml w/o注释和两者。没有任何效果！在部署时仍然没有调用servlet的init（）。请在上打开一个问题，并附加一个复制您的问题的应用程序，以便我们可以查看它servlet和设置工厂背后的一些“魔法”。我的问题是，init（）是Method从未被触发。我无法通过调试和断点访问它，甚至系统操作系统或日志也不会出现在某个地方。这个问题旨在找出为什么我的servlet在部署时没有被触发！
public class ContextManager {
private SipFactory factory;
// private BundleContext bundleContext;
private static ContextManager cm = new ContextManager();
public static ContextManager getInstance() {
return cm;
}
public SipFactory getSipFactory() {
return factory;
}
public void setSipFactory(SipFactory factory) {
this.factory = factory;
}
}
public class ServletSipMultimediaConference extends SipServlet {
...
@Override
public void init(ServletConfig config) throws ServletException {
...
SipFactory sipFactory = (SipFactory)getServletContext()
.getAttribute(SipServlet.SIP_FACTORY);
if (sipFactory == null) {
getServletContext().log("SIP Factory is null");
// --> Maybe set up a new SIP Factory here?! <--
} else {
getServletContext().log("SIP Factory set.");
}
ContextManager.getInstance().setSipFactory(sipFactory);
...
}
}
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.2</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>