[Java]socket Aio Demo

Jdk1.7 's new features, the code is more comfortable than NIO, but the performance seems to be no stronger than nio ...

import java.net.inetsocketaddress;import java.nio.bytebuffer;import  java.nio.channels.asynchronouschannelgroup;import java.nio.channels.asynchronousserversocketchannel; Import java.nio.channels.asynchronoussocketchannel;import java.nio.channels.completionhandler;import  java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import  org.apache.log4j.logger;public class aioserver implements runnable{final static  Logger logger = logger.getlogger (Aioserver.class); Object lock = new object ( ); inetsocketaddress serveraddress = null;int backlog = 0;int buff_size  = 1024;int threadpoolsize = 0;public aioserver (Int port) { This.serveraddress = new inetsocketaddress (port); initialization ();} Public aioserver (string ip,int port) {This.serveraddress = new inetsocketadDress (ip,port); initialization ();} Void initialization () {threadpoolsize = threadpoolsize>0? threadpoolsize:  Runtime.getruntime (). Availableprocessors ();} @Overridepublic  void run ()  {try {logger.info ("Aioserver threadpoolsize:" + This.threadpoolsize); Executorservice threadpool = executors.newfixedthreadpool (this.threadpoolsize);  Asynchronouschannelgroup channelgroup = asynchronouschannelgroup.withthreadpool (ThreadPool); Final asynchronousserversocketchannel assc = asynchronousserversocketchannel.open ( Channelgroup); if (this.backlog>0) { assc.bind (Serveraddress,this.backlog); }else {  Assc.bind (serveraddress);  }logger.info ("Aioserver listen:" +this.serveraddress); Assc.accept (NULL,  new CompletionHandler<AsynchronousSocketChannel,Object> () {@Overridepublic  void  Completed (asynchronoussocketchannel result,object attachment)  {Assc.accept (null, this); handler (result,attachment);} @Overridepublic  void failed (throwable exc, object attachment)  { Exc.printstacktrace ();}}); Synchronized (lock) {lock.wait ();} Channelgroup.shutdownnow (); Logger.info ("AIOSERVER&NBSP;SHUTDOWNC.");  catch  (exception e)  {e.printstacktrace ();}} static byte[] echo =  "Done." GetBytes (); Static int conncount = 1;void handler (Asynchronoussocketchannel conn, Object att) {try{//logger.info ("CONNECT&NBSP;SERVER&NBSP;:" +conncount++); Bytebuffer buff = bytebuffer.allocate (this.buff_size); Buff.clear ();int rl =  Conn.read (Buff). get (); Buff.flip (); Logger.info ("recv " +rl+ ": " +new string (Buff.array (), 0,RL)); Buff.clear ();  //empties the Buff Data buff.put (echo); Buff.flip (); Int wl = conn.write (Buff). get (); Logger.info ("send " +WL); Conn.close ();} catch (Exception ex) {ex.printstacktrace ();}} Public voiD setthreadpoolsize (int threadpoolsize) {this.threadpoolsize = threadpoolsize;} Public void setbacklog (Int backlog) {this.backlog = backlog;} Public void shutdown () {//logger.info ("Call shutdown ()"), synchronized (lock) {Lock.notifyall ();}}}

Aiotest1.java

static void T3 () {Aioserver aiose = new Aioserver (9777);//thread mode starts the new thread (Aiose). Start ();; /non-threaded mode boot//aiose.run (); try {thread.sleep (1000*60*5);//3 seconds to close Aiose.shutdown ();} catch (Interruptedexception e) { E.printstacktrace ();}}

run.sh

jopts= '-dcom.sun.management.jmxremote.port=8999 ' jopts= $jopts '-dcom.sun.management.jmxremote.authenticate=false ' jopts= $jopts '-dcom.sun.management.jmxremote.ssl=false ' jopts= $jopts '-djava.nio.channels.spi.selectorprovider= Sun.nio.ch.EPollSelectorProvider ' cp=aio.jarcp= $cp: Log4j-1.2.16.jarecho java $jopts-cp $cp aiotest1java $jopts-cp $CP AioTest1

Apache AB pressure results:

D:\tools\apache2.2\bin>ab -n 1000 -c 50 http://192.168.2.183:9777/q.jsp?q=1this  is ApacheBench, Version 2.3 < $Revision:  655654 $>copyright 1996  Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/Licensed to  the apache software foundation, http://www.apache.org/benchmarking 192.168.2.183   (be patient) completed 100 requestscompleted 200 requestscompleted 300  requestsCompleted 400 requestsCompleted 500 requestsCompleted 600  requestscompleted 700 requestscompleted 800 requestscompleted 900  requestscompleted 1000 requestsfinished 1000 requestsserver software:server  hostname:        192.168.2.183server port:             9777document path:          /document length:         0 bytesConcurrency Level:       50time taken for tests:   1.078 secondscomplete requests:       1000Failed requests:         0write errors:           0total transferred:       5000 bytesHTML transferred:        0 bytesRequests per second:    927.54 [#/sec]  (mean) time  per request:       53.906 [ms]  (mean) time per  request:       1.078 [ms]  (mean, across all  concurrent requests) Transfer rate:          4.53 [kbytes/sec]  receivedconnection times  (MS)                min  mean[+/-sd] median   maxConnect:         0    1   3.1      0       16Processing:     0   51   37.6     31     188Waiting:         0   35  41.4     31      188total:          0   52   37.6     31     188percentage of the  requests served within a certain time  (MS)   50%     31  66%      47  75%     47  80%      63  90%    141  95%    156   98%    172  99%    172 100%    188   (Longest request)

Like this Helloword,nio "requests per second" is generally around 1500 ...

[Java]socket Aio Demo