앞으로~

WARN org.apache.zookeeper.server.quorum.QuorumCnxManager: Cannot open channel to 2 at election address xxxx/xx.xx.xx.xx:3888

간단하다...라는 말로 표현 할 수있다.. 나름...

http://code.google.com/p/jwatch/

아래 와 같이 JMX 추가 하고  quartz export 하고 나면 나머지는 자동으로 처리된다. 

즉 소스를 사용하고 싶은곳에 넣은 다음 아래 내용과 함께 web.xml 을 세팅해주면 된다는 말.. 

-Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.port=2911
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false
-Dorg.quartz.scheduler.jmx.export=true

Javaの列挙型（Enum）のequalsと==とtoString

Java

恥ずかしながらすぐに忘れる…

static enum Number{
    ONE,
    TWO,
    THREE
}

public static void main(String args[]) {
    System.out.println("ONE equals Number.ONE            is " + "ONE".equals(Number.ONE));
    System.out.println("ONE equals Number.ONE.toString() is " + "ONE".equals(Number.ONE.toString()));
    System.out.println("ONE   ==   Number.ONE.toString() is " + ("ONE" == (Number.ONE.toString())));
}

実行結果

ONE equals Number.ONE            is false
ONE equals Number.ONE.toString() is true
ONE   ==   Number.ONE.toString() is true

文字列との比較はtoString()を使用

Enum#equals()

内部では「==」を使用している、なるほどね～

public final boolean equals(Object other) { 
    return this==other;

출처 : http://d.hatena.ne.jp/guangda/20100106/1262760915

http://wavded.tumblr.com/post/258713913/installing-tomcat-6-on-centos-5

http://yaplog.jp/guitarist_y/archive/108

yum install tomcat6*  tomcat관련 패키지 인스톨

yum install tomcat6 tomcat6-webapps tomcat6-admin-webapps  특정 패키지만 인스툴

아래와 같은 에러가 발생 할 경우 해당 블로그에 적혀 있는대로 

rpm -Uvh'http://plone.lucidsolutions.co.nz/linux/centos/images/jpackage-utils-compat-el5-0.0.1-1.noarch.rpm'

--> Finished Dependency Resolution
java-1.4.2-gcj-compat-1.4.2.0-40jpp.115.x86_64 from rhel-x86_64-server-5 has depsolving problems
  --> Missing Dependency: /usr/bin/rebuild-security-providers is needed by package java-1.4.2-gcj-compat-1.4.2.0-40jpp.115.x86_64 (rhel-x86_64-server-5)
java-1.4.2-gcj-compat-1.4.2.0-40jpp.115.x86_64 from rhel-x86_64-server-5 has depsolving problems
  --> Missing Dependency: /usr/bin/rebuild-security-providers is needed by package java-1.4.2-gcj-compat-1.4.2.0-40jpp.115.x86_64 (rhel-x86_64-server-5)
java-1.4.2-gcj-compat-1.4.2.0-40jpp.115.x86_64 from rhel-x86_64-server-5 has depsolving problems
  --> Missing Dependency: /usr/bin/rebuild-security-providers is needed by package java-1.4.2-gcj-compat-1.4.2.0-40jpp.115.x86_64 (rhel-x86_64-server-5)
Error: Missing Dependency: /usr/bin/rebuild-security-providers is needed by package java-1.4.2-gcj-compat-1.4.2.0-40jpp.115.x86_64 (rhel-x86_64-server-5)
 You could try using --skip-broken to work around the problem
 You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest

크롬에서 유튜브 동영상 다운로드 할때 

이거 만큼 편한 툴을 없을듯.. 

확장프로그램 검색해서.. 아마도 맞을듯.. 

[Chrome YouTube Downloader]

웹페이지 PDF 화 해서 다운로드 받는것

[PDFmyURL]

상단에서 P만 클릭하면 알아서 다운로드 까지 되는.. 완전 편하다는.

가끔 실패할때 빼고..

import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.DailyRollingFileAppender;

Logger log = Logger.getLogger(GERPIfBox.class);

     String layout = "[%d{yyyy-MM-dd HH:mm:ss}] %-5p [%l] - %m%n";
     String logfile = "D:/PMS_APP/WEB-INF/bach_job/log/gerpif.log";
     String datepattern = ".yyyy-MM-dd";
     PatternLayout patternlayout = new PatternLayout(layout);
     
     DailyRollingFileAppender appender = null;
     try{
      appender = new DailyRollingFileAppender(patternlayout, logfile, datepattern);
     }catch(java.io.IOException ioex){
      ioex.printStackTrace();
     }
     
     log.addAppender(appender);


출처 : http://blog.naver.com/PostView.nhn?blogId=javasniper&logNo=130115803097