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[jetty-users] Help with Null Embedded Jetty Server Session
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Hello,
I am not sure if this is the correct place to ask this question, but I have hit a roadblock trying to implement a hello world Embedded Jetty project (using Jetty 9.3.6v20151106) with a servlet that looks at the session. When my code runs, I am not able to see the session or store any cookies. I have reviewed all the embedded Jetty examples and looked at stackoverflow's discussions, but I can't see an obvious reason for it not to work. Am I missing some configuration?
Here is my HelloWorld.java class:
package com.my.company;
import org.eclipse.jetty.server.HttpConfiguration;
import org.eclipse.jetty.server.HttpConnectionFactory;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.server.SessionManager;
import org.eclipse.jetty.server.handler.ContextHandlerCollection;
import org.eclipse.jetty.server.session.HashSessionIdManager;
import org.eclipse.jetty.server.session.HashSessionManager;
import org.eclipse.jetty.server.session.SessionHandler;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHandler;
import org.eclipse.jetty.servlet.ServletHolder;
public class HelloWorld {
public static void main(String[] args) throws Exception {
//Create the server
Server server = new Server();
// Configure for Http
HttpConfiguration http_config = new HttpConfiguration();
http_config.setSecureScheme("https");
http_config.setSecurePort(8443);
http_config.setOutputBufferSize(32768);
ServerConnector http = new ServerConnector(server,
new HttpConnectionFactory(http_config));
int http_port = 12043;
http.setPort(http_port);
http.setIdleTimeout(30000);
server.addConnector(http);
//Add ServletContextHandler
ServletContextHandler servletContextHandler = new ServletContextHandler(
ServletContextHandler.SESSIONS);
servletContextHandler.setContextPath("/");
SessionManager sessionManager = new HashSessionManager();
sessionManager.setMaxInactiveInterval(60 * 15); //session time out of 15 minutes
HashSessionIdManager idManager = new HashSessionIdManager();
sessionManager.getSessionCookieConfig().setName("JSESSIONID_" + Integer.toString(http_port));
sessionManager.setSessionIdManager(idManager);
server.setSessionIdManager(idManager);
SessionHandler sessionHandler = new SessionHandler(sessionManager);
servletContextHandler.setSessionHandler(sessionHandler);
server.setHandler(servletContextHandler);
//Add BaseServlet
ServletHolder holder = new ServletHolder(new BaseServlet());
servletContextHandler.addServlet(holder, "/*");
//Start the server
server.start();
System.out.println("SERVER DUMP AFTER START" + server.dump());
// The use of server.join() the will make the current thread join and
// wait until the server is done executing.
// See http://docs.oracle.com/javase/7/docs/api/java/lang/Thread.html#join()
server.join();
}
}
Here is my BaseServlet.java class:
package com.my.company;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class BaseServlet extends HttpServlet {
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
boolean create = "true".equals(req.getParameter("create"));
HttpSession session = req.getSession(create);
if (create) {
session.setAttribute("created", new Date());
}
PrintWriter pw = new PrintWriter(resp.getOutputStream());
pw.println("Create = " + create);
if (session == null) {
pw.println("no session");
} else {
pw.println("Session = " + session.getId());
pw.println("Created = " + session.getAttribute("created"));
}
pw.flush();
}
}
Here is my pom.xml file:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>EmbeddJettyHelloWorld</groupId>
<artifactId>EmbeddJettyHelloWorld</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>EmbeddJettyHelloWorld</name>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.4.0</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>com.my.company.HelloWorld</mainClass>
<classpathScope>test</classpathScope>
<systemProperties>
<property>
<key>basedir</key>
<value>${basedir}</value>
</property>
</systemProperties>
</configuration>
</plugin>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jetty-version}</version>
<configuration>
<webAppConfig>
<contextPath>/</contextPath>
</webAppConfig>
<webAppSourceDirectory>target/${project.artifactId}-${project.version}</webAppSourceDirectory>
<webDefaultXml>${project.basedir}/conf/jetty/webdefault.xml</webDefaultXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>${jetty-version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
<version>${jetty-version}</version>
</dependency>
</dependencies>
<properties>
<jetty-version>9.3.6.v20151106</jetty-version>
</properties>
Here is the output of the server dump:
SERVER DUMP AFTER STARTorg.eclipse.jetty.server.Server@71f2a7d5 - STARTED
+= qtp1149319664{STARTED,8<=8<=200,i=5,q=0} - STARTED
| +- 15 qtp1149319664-15 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 13 qtp1149319664-13-acceptor-0@4c170d5c-ServerConnector@326de728 {HTTP/1.1,[http/1.1]}{0.0.0.0:12043} RUNNABLE @ sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method) prio=3
| +- 14 qtp1149319664-14 RUNNABLE @ sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
| +- 12 qtp1149319664-12 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 18 qtp1149319664-18 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 16 qtp1149319664-16 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
| +- 11 qtp1149319664-11 RUNNABLE @ sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
| +- 17 qtp1149319664-17 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE
+= ServerConnector@326de728{HTTP/1.1,[http/1.1]}{0.0.0.0:12043} - STARTED
| +~ org.eclipse.jetty.server.Server@71f2a7d5 - STARTED
| +~ qtp1149319664{STARTED,8<=8<=200,i=5,q=0} - STARTED
| += org.eclipse.jetty.util.thread.ScheduledExecutorScheduler@1a6c5a9e - STARTED
| +- org.eclipse.jetty.io.ArrayByteBufferPool@2cfb4a64
| += HttpConnectionFactory@20ad9418[HTTP/1.1] - STARTED
| | +- HttpConfiguration@5474c6c{32768/8192,8192/8192,https://:8443,[]}
| += org.eclipse.jetty.server.ServerConnector$ServerConnectorManager@4b6995df - STARTED
| | +- org.eclipse.jetty.io.ManagedSelector@34033bd0 id=0 keys=0 selected=0 id=0
| | | +- sun.nio.ch.WindowsSelectorImpl@5200a403 keys=0
| | +- org.eclipse.jetty.io.ManagedSelector@3aa9e816 id=1 keys=0 selected=0 id=1
| | +- sun.nio.ch.WindowsSelectorImpl@33c7bf keys=0
| +- sun.nio.ch.ServerSocketChannelImpl[/0:0:0:0:0:0:0:0:12043]
| +- qtp1149319664-13-acceptor-0@4c170d5c-ServerConnector@326de728{HTTP/1.1,[http/1.1]}{0.0.0.0:12043}
+= org.eclipse.jetty.server.session.HashSessionIdManager@17d99928 - STARTED
+= o.e.j.s.ServletContextHandler@2e5c649{/,null,AVAILABLE} - STARTED
| += org.eclipse.jetty.server.session.SessionHandler@6fffcba5 - STARTED
| | += org.eclipse.jetty.server.session.HashSessionManager@9e89d68 - STARTED
| | | +~ org.eclipse.jetty.server.session.HashSessionIdManager@17d99928 - STARTED
| | | += org.eclipse.jetty.util.thread.ScheduledExecutorScheduler@34340fab - STARTED
| | | +- sun.misc.Unsafe.park(Native Method)
| | | +- java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
| | | +- java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
| | | +- java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
| | | +- java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
| | | +- java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
| | | +- java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
| | | +- java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
| | | +- java.lang.Thread.run(Thread.java:745)
| | += org.eclipse.jetty.servlet.ServletHandler@2aafb23c - STARTED
| | += com.rtn.iaf.BaseServlet-484b61fc@3334c9b2==com.rtn.iaf.BaseServlet,-1,true - STARTED
| | +- [/*]=>com.rtn.iaf.BaseServlet-484b61fc
| | += org.eclipse.jetty.servlet.ServletHandler$Default404Servlet-7a7b0070@1d1bf782==org.eclipse.jetty.servlet.ServletHandler$Default404Servlet,-1,false - STARTED
| | +- [/]=>org.eclipse.jetty.servlet.ServletHandler$Default404Servlet-7a7b0070
| |
| +> No ClassLoader
| +> Handler attributes o.e.j.s.ServletContextHandler@2e5c649{/,null,AVAILABLE}
| | +- org.eclipse.jetty.server.Executor=qtp1149319664{STARTED,8<=8<=200,i=5,q=0}
| +> Context attributes o.e.j.s.ServletContextHandler@2e5c649{/,null,AVAILABLE}
| | +- org.eclipse.jetty.util.DecoratedObjectFactory=org.eclipse.jetty.util.DecoratedObjectFactory[decorators=0]
| +> Initparams o.e.j.s.ServletContextHandler@2e5c649{/,null,AVAILABLE}
|
+> sun.misc.Launcher$AppClassLoader@73d16e93
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/EmbeddJettyHelloWorld/target/classes/
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/.m2/repository1/org/eclipse/jetty/jetty-server/9.3.6.v20151106/jetty-server-9.3.6.v20151106.jar
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/.m2/repository1/javax/servlet/javax.servlet-api/3.1.0/javax.servlet-api-3.1.0.jar
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/.m2/repository1/org/eclipse/jetty/jetty-http/9.3.6.v20151106/jetty-http-9.3.6.v20151106.jar
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/.m2/repository1/org/eclipse/jetty/jetty-util/9.3.6.v20151106/jetty-util-9.3.6.v20151106.jar
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/.m2/repository1/org/eclipse/jetty/jetty-io/9.3.6.v20151106/jetty-io-9.3.6.v20151106.jar
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/.m2/repository1/org/eclipse/jetty/jetty-servlet/9.3.6.v20151106/jetty-servlet-9.3.6.v20151106.jar
+- file:/C:/Users/myUser/tutorialAndDemo_workspace/.m2/repository1/org/eclipse/jetty/jetty-security/9.3.6.v20151106/jetty-security-9.3.6.v20151106.jar
+- sun.misc.Launcher$ExtClassLoader@2b80d80f
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Thank you,
