Apache's Commons-pool pool creates multi-threaded use WebClient

package test;import org.apache.commons.pool.poolableobjectfactory;import  org.apache.commons.pool.impl.genericobjectpool;import org.apache.log4j.logger;import  com.gargoylesoftware.htmlunit.browserversion;import  com.gargoylesoftware.htmlunit.nicelyresynchronizingajaxcontroller;import  Com.gargoylesoftware.htmlunit.webclient;//http://blog.csdn.net/m13321169565/article/details/8081410public  class pooledclientfactory{    private static logger log =  logger.getlogger (Pooledclientfactory.class);    private final static  Pooledclientfactory instance =new pooledclientfactory ();     //Another option might be more appropriate-- -Object pooling technology.     //Apache-based Commons-pool Pool     private final  Genericobjectpool clientpool =new genericobjectpool ();    public  Static pooledclientfactory getInstance ()  {        return instance;     }        public pooledclientfactory () {                 //implementing object Pool object creation factory interface          clientpool.setfactory (New poolableobjectfactory ()  {              //  create an object instance for populating the object pool. You can also assign the resources to which this object applies.                @Override              public object makeobject ()  throws  Exception  {                 log.info ("For Thread  [ "  + thread.currentthread (). GetName () +                           " ]  Create a new WebClient instance! ");                                   WebClient  Webclient = new webclient (browserversion.firefox_17);                                           // Set parameters for WebClient                      webclient.getcookiemanager (). Setcookiesenabled (True);//  turn on cookie management                       webclient.getoptions(). Setjavascriptenabled (True);//  turn on JS parsing                      webclient.getoptions (). setcssenabled (False);                     //   When http error occurs, the program does not throw an exception to continue execution                      webclient.getoptions (). Setthrowexceptiononfailingstatuscode ( False);                     //  prevent JS syntax errors from throwing Exceptions                      webclient.getoptions (). Setthrowexceptiononscripterror (false);  // js If an exception is thrown when running an error                  &nBsp;   webclient.getoptions (). SetTimeout (10000);                     //  default is false,  Set to True to not let your browsing behavior be recorded                      webclient.getoptions (). setdonottrackenabled (False);                     //  Setting up AJAX asynchronous processing controller enables AJAX support                      webClient                             . Setajaxcontroller (New nicelyresynchronizingajaxcontroller ());                     return webclient;             }                          //  destroy object, called when destroying object pool, connection pool call Invalidateobject (obj) When called               @Override              public void destroyobject (OBJECT ARG0)  throws Exception {                   log.info ("Destroy object:"  + arg0);                   WebClient client =  ( WebClient)  arg0;                 client.closeallwindows();                 client  = null;            }                          //   Query object validation, requires object pool setting Settestonborrow (TRUE), invalid object will be destroy              @Override              public boolean validateobject (object arg0)  {                  log.info ("Check object validity:"  +  ARG0);                   return true;            }               //  activates an object that is called when an object is fetched from an object pool                 @Override              public void activateobject (object arg0)  throws Exception  {                  Log.info ("active object:"  + arg0);               }                          //  Suspend (passivation) an object that is called when the object is returned to the object pool               @Override              public void passivateobject (object arg0)  throws Exception  {                                  log.info ("Suspended object:"  + arg0);               }         });                 clientpool.settestonborrow (true);         //the maximum waiting time for the loan object to reach the maximum value, 5s wait time after throw exception         //clientpool.setmaxwait (;   )      //set the maximum number of available loans, default is 8         Clientpool.setmaxactive (Ten);    }                              public webclient getclient ()   {        try {             return  (WebClient) this.clientPool.borrowObject ();         } catch  (exception e)  {             e.printstacktrace ();             return null;        }             }        public void  returnclient (webclient client)  {        try {             this.clientpool.returnobject (client);         } catch  (exception e)  {        &nbSp;    e.printstacktrace ();        }         }          //test Object Pool        public static void main (String[] args)  {           try {               //CursorableLinkedList             //gets the number of idle objects in the pool, and returns negative if not available                  log.info (Pooledclientfactory.getinstance (). ClientPool.getNumIdle ());                         //Remove Object 1        object obj1=     pooledclientfactorY.getinstance (). Getclient ();         //Remove Object 2         object obj2=    pooledclientfactory.getinstance (). GetClient () ;         //Remove Object 3                 Object obj3=     Pooledclientfactory.getinstance (). Getclient ();                 //if the object loan reaches the maximum number of maxactive, the program waits for the object to be available (returned), or you can set the wait time by default_max_wait. Default is-11 straight wait                  Pooledclientfactory.getinstance (). Getclient ();                     pooledclientfactory.getinstance (). GetClient ();                     pooledclientfactory.getinstance (). GetClient ();                      pooledclientfactory.getinstance (). Getclient ();                     pooledclientfactory.getinstance (). Getclient ();                     pooledclientfactory.getinstance (). Getclient ();                 //Returning Objects 1                                      pooledclientfactory.getinstance (). Returnclient ((WebClient)  obj1);                 //get the number of free objects in the pool          log.info (Pooledclientfactory.getinstance (). ClientPool.getNumIdle ());          //     returns the number of objects loaned from the pool          log.info (Pooledclientfactory.getinstance (). Clientpool.getnumactive ());                 //maximum number of loans available          log.info (Pooledclientfactory.getinstance (). ClientPool.getMaxActive () );         //Maximum idle quantity          Log.info (Pooledclientfactory.getinstance (). Clientpool.getmaxidle ());         //Minimum Idle quantity         log.info (Pooledclientfactory.getinstance (). Clientpool.getminidle ());                          pooledclientfactory.getinstance (). Clientpool.clear ();         pooledclientfactory.getinstance (). Clientpool.close ();                 //using a factory to create an object          pooledclientfactory.getinstance (). Clientpool.getmaxactive ();         } catch  (exception e)  {                          E.printstacktrace ();        }             }}

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Apache's Commons-pool pool creates multi-threaded use WebClient