嵌入式启动

 tomcat8 嵌入式 servlet 实例 

dyyx.Main at localhost:50351    
    Thread [main] (Running) 
    Daemon Thread [NioBlockingSelector.BlockPoller-1] (Running) 
    Daemon Thread [ContainerBackgroundProcessor[StandardEngine[Tomcat]]] (Running)  
    Daemon Thread [http-nio-8086-ClientPoller-0] (Running)  
    Daemon Thread [http-nio-8086-ClientPoller-1] (Running)  
    Daemon Thread [http-nio-8086-Acceptor-0] (Running)  
    Daemon Thread [http-nio-8086-AsyncTimeout] (Running)    
    Daemon Thread [http-nio-8086-exec-1] (Running)  
    Daemon Thread [http-nio-8086-exec-2] (Running)  
    Daemon Thread [http-nio-8086-exec-3] (Running)  
    



ContainerBackgroundProcessor线程
Private thread class to invoke the backgroundProcess method of this container and its children after a fixed delay.
     
     
BlockPoller  处理阻塞的读写操作
Daemon Thread [http-nio-8086-exec-N]  工作线程
Acceptor accept线程  接受新连接 

ClientPoller  IO读写线程

The background thread that adds sockets to the Poller, 
checks the  poller for triggered events 
and hands the associated socket off to an appropriate processor as events occur.
     
         
AsyncTimeout
The background thread that checks async requests and fires the timeout if there has been no activity.





Daemon Thread [NioBlockingSelector.BlockPoller-1] (Running) 

org.apache.tomcat.util.net.NioBlockingSelector.BlockPoller

public void open(Selector selector) {
        sharedSelector = selector;
        poller = new BlockPoller();
        poller.selector = sharedSelector;
        poller.setDaemon(true);
        poller.setName("NioBlockingSelector.BlockPoller-"+(++threadCounter));
        poller.start();
    }
    
    


Daemon Thread [ContainerBackgroundProcessor[StandardEngine[Tomcat]]] (Running)  

org.apache.catalina.core.ContainerBase.threadStart()
String threadName = "ContainerBackgroundProcessor[" + toString() + "]";
        thread = new Thread(new ContainerBackgroundProcessor(), threadName);
        thread.setDaemon(true);
        thread.start();
        
        


Daemon Thread [http-nio-8086-ClientPoller-0] (Running) 

NioEndpoint.startInternal()

// Start poller threads
pollers = new Poller[getPollerThreadCount()];
for (int i=0; i < pollers.length; i++) {
    pollers[i] = new Poller();
    Thread pollerThread = new Thread(pollers[i], getName() + "-ClientPoller-"+i);
    pollerThread.setPriority(threadPriority);
    pollerThread.setDaemon(true);
    pollerThread.start();
}
 


Daemon Thread [http-nio-8086-Acceptor-0] (Running)  

org.apache.tomcat.util.net.Nio2Endpoint.Acceptor
org.apache.tomcat.util.net.AbstractEndpoint.startAcceptorThreads()

 protected final void startAcceptorThreads() {
        int count = getAcceptorThreadCount();
        acceptors = new Acceptor[count];

        for (int i = 0; i < count; i++) {
            acceptors[i] = createAcceptor();
            String threadName = getName() + "-Acceptor-" + i;
            acceptors[i].setThreadName(threadName);
            Thread t = new Thread(acceptors[i], threadName);
            t.setPriority(getAcceptorThreadPriority());
            t.setDaemon(getDaemon());
            t.start();
        }
    }
    
    



Daemon Thread [http-nio-8086-AsyncTimeout] (Running)    

org.apache.coyote.AbstractProtocol.AsyncTimeout<S>

org.apache.coyote.AbstractProtocol.start()

asyncTimeout = new AsyncTimeout();
        Thread timeoutThread = new Thread(asyncTimeout, getNameInternal() + "-AsyncTimeout");
        timeoutThread.setPriority(endpoint.getThreadPriority());
        timeoutThread.setDaemon(true);
        timeoutThread.start();



Daemon Thread [http-nio-8086-exec-2] (Suspended (breakpoint at line 20 in HelloServlet))    
    owns: NioChannel  (id=69)   
    HelloServlet.doPost(HttpServletRequest, HttpServletResponse) line: 20   
    HelloServlet.doGet(HttpServletRequest, HttpServletResponse) line: 15    
    HelloServlet(HttpServlet).service(HttpServletRequest, HttpServletResponse) line: 622    
    HelloServlet(HttpServlet).service(ServletRequest, ServletResponse) line: 729    
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 230  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 165  
    StandardWrapperValve.invoke(Request, Response) line: 198    
    StandardContextValve.invoke(Request, Response) line: 108    
    NonLoginAuthenticator(AuthenticatorBase).invoke(Request, Response) line: 522    
    StandardHostValve.invoke(Request, Response) line: 140   
    ErrorReportValve.invoke(Request, Response) line: 79 
    StandardEngineValve.invoke(Request, Response) line: 87  
    CoyoteAdapter.service(Request, Response) line: 343  
    Http11Processor.service(SocketWrapperBase<?>) line: 1096    
    Http11Processor(AbstractProcessorLight).process(SocketWrapperBase<?>, SocketEvent) line: 66 
    AbstractProtocol$ConnectionHandler<S>.process(SocketWrapperBase<S>, SocketEvent) line: 760  
    NioEndpoint$SocketProcessor.run() line: 1480    
    ThreadPoolExecutor(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1142  
    ThreadPoolExecutor$Worker.run() line: 617   
    TaskThread$WrappingRunnable.run() line: 61  




工作线程池
org.apache.tomcat.util.threads.ThreadPoolExecutor
org.apache.tomcat.util.net.AbstractEndpoint.createExecutor()

public void createExecutor() {
    internalExecutor = true;
    TaskQueue taskqueue = new TaskQueue();
    TaskThreadFactory tf = new TaskThreadFactory(getName() + "-exec-", daemon, getThreadPriority());
    executor = new ThreadPoolExecutor(getMinSpareThreads(), getMaxThreads(), 60, TimeUnit.SECONDS,taskqueue, tf);
    taskqueue.setParent( (ThreadPoolExecutor) executor);
}