listener.java

程序测试说明

package test;    
  import   java.util.Timer   ;   
  import   java.util.TimerTask   ;   
  import   java.net.Socket   ;   
  import   java.net.*   ;   
  import   java.io.*   ;   
    
  public   class   Listener   
          extends   TimerTask   
  {   
          private   int   count   =   0   ;   
          private   int   defaultPort   =   8080   ;   
          public   void   run   ()   
          {   
                  count   ++   ;   
                  log("run   times:"   +   count);   
                  if   (   isTomcatRunning   ()   )   
                  {   
                          log   (   "Running"   )   ;   
                  }   
                  else   
                  {   
                          log   (   "Not   Running"   )   ;   
                          startup();   
                  }   
          }   
    
          public   void   startup()   
          {   
                  Runtime   runtime   =   Runtime.getRuntime()   ;   
                  Process   testProcess   =   null   ;   
                  try   
                  {   
                          testProcess   =   runtime.exec   (   "tomcat5.exe"   )   ;   
                          try   
                          {   
                                  testProcess.waitFor   ()   ;   
                          }   
                          catch   (   InterruptedException   ex1   )   
                          {   
                                  ex1.printStackTrace();   
                          }   
                          InputStream   in   =   testProcess.getInputStream()   ;   
                          byte[]   bytes   =   new   byte[in.available()];   
                          in.read(bytes)   ;   
                          log("   [   OUTPUT   ]   "+new   String(bytes));   
                  }   
                  catch   (   IOException   ex   )   
                  {   
                          ex.printStackTrace();   
                  }   
          }   
          public   boolean   isTomcatRunning   ()   
          {   
                  return   isTomcatRunning   (   defaultPort   )   ;   
          }   
    
          public   boolean   isTomcatRunning   (   int   port   )   
          {   
                  boolean   returnBoolean   =   false   ;   
                  Socket   socket   =   null   ;   
                  try   
                  {   
                          socket   =   new   Socket   (   "localhost"   ,   port   )   ;   
                          returnBoolean   =   true   ;   
                  }   
                  catch   (   UnknownHostException   ex   )   
                  {   
                          log   (   ex.getMessage   ()   )   ;   
                          returnBoolean   =   false   ;   
                  }   
                  catch   (   IOException   ex   )   
                  {   
                          log   (   ex.getMessage   ()   )   ;   
                          returnBoolean   =   false   ;   
                  }   
                  finally   
                  {   
                          if(socket   !=   null)   
                          {   
                                  try   
                                  {   
                                          socket.close   ()   ;   
                                  }   
                                  catch   (   IOException   ex1   )   
                                  {   
                                          log(ex1.getMessage());   
                                  }   
                          }   
                  }   
                  return   returnBoolean   ;   
    
          }   
    
          private   void   log   (   String   message   )   
          {   
                  System.out.println   (   "[   TomcatListener   ]   :"   +   message   )   ;   
          }   
    
          public   static   void   main   (   String[]   args   )   
          {   
                  Timer   timer   =   new   Timer   (   false   )   ;   
          //                 timer.schedule(new   Listener(),new   Date());   
                  timer.schedule(new   Listener(),0,1000   *   5);   
          }   
  }