[Struts2] Dispatcher initialization failed with struts 2.3 jars

Struts2 를 실행하려고 준비 하다 보면 여러가지 에러를 피하지 못하는 경우가 많다. 어찌 보면 튜토리얼을 보고 제대로 시작을 한다면 모르지만 아마도 나와 같은 사람들이 많다는 생각을 해보면서 여기저기에 샘플들을 모아서 새로운 것을 만들다 보니 놓치게 된것이 바로 Jar 파일의 유무와 버전에 대한 문제가 있다는 것을 간과 했다.

아래의 에러에 대한 해결책은 버전과 필수 파일을 맞추는데서 부터 시작 한다.

위의 경우는 Struts2 2.3.16 버전에서 기본 Lib 파일을 다운로드 받은 후 기본적으로 필요한 것만 받은 것이다. 이 중엥서 log4j-1.2.16.jar, ojdbc6.jar 파일은 나의 사황에 맞추 추가된 내용이므로 받드시 필요 한것은 아니다. 

** 에러 코드 참조

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:295)
    at com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector.construct(ContainerImpl.java:431)
    at com.opensymphony.xwork2.inject.ContainerBuilder$5.create(ContainerBuilder.java:207)
    at com.opensymphony.xwork2.inject.Scope$2$1.create(Scope.java:51)
    at com.opensymphony.xwork2.inject.ContainerBuilder$3.create(ContainerBuilder.java:93)
    at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:487)
    at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:484)
    at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:574)
    at com.opensymphony.xwork2.inject.ContainerBuilder.create(ContainerBuilder.java:484)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.createBootstrapContainer(DefaultConfiguration.java:252)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
    at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:390)
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:436)
    at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4072)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4726)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
    at org.apache.catalina.core.StandardService.start(StandardService.java:525)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:293)
    ... 33 more
Caused by: java.lang.ExceptionInInitializerError
    at com.opensymphony.xwork2.ognl.OgnlValueStackFactory.setContainer(OgnlValueStackFactory.java:85)
    ... 38 more
Caused by: java.lang.IllegalArgumentException: Javassist library is missing in classpath! Please add missed dependency!
    at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:168)
    ... 39 more
Caused by: java.lang.ClassNotFoundException: javassist.ClassPool
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:169)
    at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:165)
    ... 39 more
11 Jun, 2012 9:14:47 PM org.apache.catalina.core.StandardContext filterStart
SEVERE: Exception starting filter Struts2
java.lang.reflect.InvocationTargetException - Class: com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector
File: ContainerImpl.java
Method: inject
Line: 295 - com/opensymphony/xwork2/inject/ContainerImpl.java:295:-1
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:449)
    at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4072)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4726)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
    at org.apache.catalina.core.StandardService.start(StandardService.java:525)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:295)
    at com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector.construct(ContainerImpl.java:431)
    at com.opensymphony.xwork2.inject.ContainerBuilder$5.create(ContainerBuilder.java:207)
    at com.opensymphony.xwork2.inject.Scope$2$1.create(Scope.java:51)
    at com.opensymphony.xwork2.inject.ContainerBuilder$3.create(ContainerBuilder.java:93)
    at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:487)
    at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:484)
    at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:574)
    at com.opensymphony.xwork2.inject.ContainerBuilder.create(ContainerBuilder.java:484)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.createBootstrapContainer(DefaultConfiguration.java:252)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
    at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:390)
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:436)
    ... 20 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:293)
    ... 33 more
Caused by: java.lang.ExceptionInInitializerError
    at com.opensymphony.xwork2.ognl.OgnlValueStackFactory.setContainer(OgnlValueStackFactory.java:85)
    ... 38 more
Caused by: java.lang.IllegalArgumentException: Javassist library is missing in classpath! Please add missed dependency!
    at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:168)
    ... 39 more
Caused by: java.lang.ClassNotFoundException: javassist.ClassPool
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:169)
    at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:165)
    ... 39 more
11 Jun, 2012 9:14:47 PM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
11 Jun, 2012 9:14:47 PM org.apache.catalina.core.StandardContext start
SEVERE: Context [/Pr_StrutsLoginMap] startup failed due to previous errors
11 Jun, 2012 9:14:47 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: The web application [/Pr_StrutsLoginMap] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@2d13981b]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@61672bbb]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
11 Jun, 2012 9:14:47 PM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
11 Jun, 2012 9:14:47 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
11 Jun, 2012 9:14:47 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/16  config=null
11 Jun, 2012 9:14:47 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 4032 ms

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http://www.w3schools.com/

http://opentutorials.org/course/62

http://www.phpschool.com/

[CentOS] CentOS 6.5 - MySQL and Apache2 and PHP Configuration

Installing MySQL 5
To install MySQL, we do this:

[root@~]# yum -y install mysql mysql-server

Then we create the system startup links for MySQL (so that MySQL starts automatically whenever the system boots) and start the MySQL server:

chkconfig --levels 235 mysqld on
[root@~]# /etc/init.d/mysqld start

Set passwords for the MySQL root account:

mysql_secure_installation

[root@~]#  mysql_secure_installation

Installing Apache2
Apache2 is available as a CentOS package, therefore we can install it like this:

[root@~]# yum -y install httpd

Now configure your system to start Apache at boot time...

chkconfig --levels 235 httpd on

... and start Apache:

[root@~]# /etc/init.d/httpd start

Now direct your browser to http://192.168.0.100, and you should see the Apache2 placeholder page:


Apache's default document root is /var/www/html on CentOS, and the configuration file is /etc/httpd/conf/httpd.conf. Additional configurations are stored in the /etc/httpd/conf.d/ directory.



[root@~]# vi /etc/sysconfig/iptables

cofig files input
......
-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT


[root@~]# service iptables restart


 Installing PHP5
We can install PHP5 and the Apache PHP5 module as follows:

[root@~]# yum -y install php


We must restart Apache afterwards:

[root@~]# /etc/init.d/httpd restart

5 Testing PHP5 / Getting Details About Your PHP5 Installation
The document root of the default web site is /var/www/html. We will now create a small PHP file (info.php) in that directory and call it in a browser. The file will display lots of useful details about our PHP installation, such as the installed PHP version.

[root@~]# vi /var/www/html/info.php

<?php
phpinfo();
?>

Now we call that file in a browser (e.g. http://192.168.0.100/info.php):


As you see, PHP5 is working, and it's working through the Apache 2.0 Handler, as shown in the Server API line. If you scroll further down, you will see all modules that are already enabled in PHP5. MySQL is not listed there which means we don't have MySQL support in PHP5 yet.



6 Getting MySQL Support In PHP5
To get MySQL support in PHP, we can install the php-mysql package. It's a good idea to install some other PHP5 modules as well as you might need them for your applications. You can search for available PHP5 modules like this:

[root@~]# yum search php

Pick the ones you need and install them like this:

[root@~]# yum -y install php-mysql

In the next step I will install some common PHP modules that are required by CMS Systems like Wordpress, Joomla and Drupal:

[root@~]# yum -y install php-gd php-imap php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-mcrypt php-mssql php-snmp php-soap php-tidy curl curl-devel

APC is a free and open PHP opcode cacher for caching and optimizing PHP intermediate code. It's similar to other PHP opcode cachers, such as eAccelerator and Xcache. It is strongly recommended to have one of these installed to speed up your PHP page.

APC can be installed as follows:

[root@~]# yum -y install php-pecl-apc

Now restart Apache2:

[root@~]# /etc/init.d/httpd restart

Now reload http://localhost/info.php in your browser and scroll down to the modules section again. You should now find lots of new modules there, including the APC module:


phpMyAdmin
phpMyAdmin is a web interface through which you can manage your MySQL databases.

First we enable the RPMforge repository on our CentOS system as phpMyAdmin is not available in the official CentOS 6.5 repositories:

Import the RPMforge GPG key:

[root@~]# rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt

On x86_64 systems:

[root@~]# yum -y install http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm

On i386 systems:

[root@~]# yum -y install http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el6.rf.i686.rpm

phpMyAdmin can now be installed as follows:

[root@~]# yum -y install phpmyadmin

Now we configure phpMyAdmin. We change the Apache configuration so that phpMyAdmin allows connections not just from localhost (by commenting out the <Directory "/usr/share/phpmyadmin"> stanza):

[root@~]# vi /etc/httpd/conf.d/phpmyadmin.conf

#
#  Web application to manage MySQL
#

#<Directory "/usr/share/phpmyadmin">
#  Order Deny,Allow
#  Deny from all
#  Allow from 127.0.0.1
#</Directory>

Alias /phpmyadmin /usr/share/phpmyadmin
Alias /phpMyAdmin /usr/share/phpmyadmin
Alias /mysqladmin /usr/share/phpmyadmin
Next we change the authentication in phpMyAdmin from cookie to http:

[root@~]# vi /usr/share/phpmyadmin/config.inc.php

[...]

/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'http';

or

$cfg['Servers'][$i]['auth_type'] = 'cookie';

[...]
Restart Apache:

[root@~]# /etc/init.d/httpd restart

Afterwards, you can access phpMyAdmin under http://localhost/phpmyadmin/:

[CentOS] SSH Config - PermitRootLogin

## CentOS 6.5 64Bit Version


OpenSSH Configuration Files
[root@dev]# vi /etc/ssh/sshd_config
[root@dev]# /etc/rc.d/init.d/sshd restart

# LoginGraceTime 2m
설정한 시간내에 로그인 하지 않으면 자동으로 접속을 끊도록 설정 한다. 값을 0으로 하면 무제한 이다.

# PermitRootLogin no
기본값은 주석처리 되어 있어 기본으로 값은 'yes' 이다. 공격자가 임의의 주소에 root 계정으로 접속이 가능한지 여부를 알아 낼 수 있다. 따라서 위와 같이 root 계정의 접근을 막고 일반 유저로 접속한 다음 root 계정으로 전환 하는 것이 일반적이다.

# MaxAuthTries 6
접속당 최대 인증 시도 횟수. 기본값 6, 3회이상 인증 실패시 로그가 기록