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Java_Timer手动开启关闭定时器

sz_joe — Tue, 23 Oct 2012 13:53:00 GMT

import java.util.Timer;

public class DcSpTimer {

     public static boolean isRun = false;
     public static Timer timer = new Timer();

     private String result="zhuliang";

     public void start(){
         if(!isRun){
             System.out.println("��d��开�?img src="http://www.tkk7.com/Images/dot.gif" alt="" />");
             isRun = true;
             timer = new Timer();
             timer.schedule(new DcSpTimerTask(), 1000, 2000);//�?�U�后执行此�Q�?每次间隔2�U?如果传递一个Data参数,��可以在某个固定的时间执行这个�Q�?
         }
     }

    class DcSpTimerTask extends java.util.TimerTask{

        @Override
        public void run(){
            // TODO Auto-generated method stub
            System.out.println("________"+result);

        }
    }

import java.io.IOException;

public class Test {
public void UpdateSP(){
   while(true){//�q�个是用来停止此��d��?否则��׃��直��@环执行此��d��?br />             try {
                 int ch = System.in.read();
                 if(ch-'c'==0){

                 if(DcSpTimer.isRun){
                   System.out.println("��d��停止。。�?);
                  DcSpTimer.isRun=false;
                  DcSpTimer.timer.cancel();//使用�q�个�Ҏ��退��Z�Q�?br />                 }
                 }

                 if(ch-'s'==0){
                 DcSpTimer dc = new DcSpTimer();
                 dc.start();

                 }
             } catch (IOException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
         }
}
public static void main(String[] args) {

   Test t = new Test();
   t.UpdateSP();
     }

}

}

sz_joe 2012-10-23 21:53 发表评论

window7 64bit解决tomcat内存不��问题

sz_joe — Mon, 05 Mar 2012 08:04:00 GMT

�Q�环�?Windows7 64bit,
工具:eclipse-jee-helios-SR2-win32-x86_64�Q?br />�Q�可参考：http://hi.baidu.com/chssheng2007/blog/item/22e7b1d37d7f480b3af3cf18.html�Q?br />
修改 TOMCATHOME\bin\catalina.bat 文�g:
�W�一步：
扑ֈ� set JAVA_OPTS=%JAVA_OPTS% %LOGGING_CONFIG% �?rem ��其注释

rem set JAVA_OPTS=%JAVA_OPTS% %LOGGING_CONFIG%

rem set JAVA_OPTS=%JAVA_OPTS% %LOGGING_MANAGER%
�W�二步：
增加一�?br />set JAVA_OPTS=-server -Xms1024m -Xmx1024m -Xss512k -XX:PermSize=64M -XX:MaxNewSize=256m -XX:MaxPermSize=128m -Djava.awt.headless=true

eclipse tomcat插�g�Q?br />扑ֈ��Q?Windows -> Preferences -> Tomcat -> JVM Settings -> Append to JVM Parameters
增加jvm参数
-Xms1024m -Xmx1024m -Xss512k -XX:PermSize=64M -XX:MaxNewSize=256m -XX:MaxPermSize=128m -Djava.awt.headless=true

sz_joe 2012-03-05 16:04 发表评论

sz_joe — Mon, 05 Mar 2012 08:01:00 GMT

[环境:Windows7 64bit , 工具:eclipse-jee-helios-SR2-win32-x86_64]

Cannot complete the install because one or more required items could not be found.
Software being installed: Maven Integration for Eclipse (Required) 0.12.1.20110112-1712 (org.maven.ide.eclipse.feature.feature.group 0.12.1.20110112-1712)
Missing requirement: Maven Integration for Eclipse (Editors) 0.12.1.20110112-1712 (org.maven.ide.eclipse.editor 0.12.1.20110112-1712) requires 'bundle org.eclipse.zest.core 0.0.0' but it could not be found
Cannot satisfy dependency:
From: Maven Integration for Eclipse (Required) 0.12.1.20110112-1712 (org.maven.ide.eclipse.feature.feature.group 0.12.1.20110112-1712)
To: org.maven.ide.eclipse.editor [0.12.1.20110112-1712]
感觉上是��maven依赖的eclipse插�g�Q�网上查了查�Q�解��x��法如下：

启动eclipse�Q�点击window——>preferences——>install/update——>available software sites�Q�点击Add

��d��如下信息�Q?br />GEF http://download.eclipse.org/tools/gef/updates/releases/
然后再重新安装maven插�g

sz_joe 2012-03-05 16:01 发表评论