sakuragi's miscellaneous space

sudo apt-get install sun-java5-bin
sudo update-alternatives --config java
sudo update-alternatives --config javac

$ sudo update-alternatives --config java

There are 2 alternatives which provide `java'.

Selection Alternative
-----------------------------------------------
*+ 1 /usr/lib/jvm/java-1.5.0-sun/jre/bin/java
2 /usr/bin/gij-wrapper-4.1

Press enter to keep the default[*], or type selection number: 1
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/java' to provide `java'.

$ sudo update-alternatives --config javac

There are 2 alternatives which provide `javac'.

Selection Alternative
-----------------------------------------------
* 1 /usr/lib/jvm/java-1.5.0-sun/bin/javac
+ 2 /usr/bin/ecj-bootstrap

Press enter to keep the default[*], or type selection number: 1
Using `/usr/lib/jvm/java-1.5.0-sun/bin/javac' to provide `javac'.
$ _

sudo apt-get install tomcat5.5 tomcat5.5-admin tomcat5.5-webapps apache2.2-common apache2-utils

cd /etc/apache2/mods-enabled
ln -s ../mods-enabled/rewrite.load
ln -s ../mods-available/proxy.load
ln -s ../mods-available/proxy_ajp.load
ln -s ../mods-available/proxy_balancer.load
ln -s ../mods-available/userdir.load
ln -s ../mods-available/userdir.conf

NameVirtualHost *
<VirtualHost *>
        ServerAdmin webmaster@localhost

        DocumentRoot /var/www/
        <Directory />
                Options FollowSymLinks
                AllowOverride None
        </Directory>

        ## mod_proxy_balancer
        ## 필요한 만큼 BalancerMember를 추가하면 자동으로 분산 요청
        ## 아래 주소는 단지 예시일 뿐
        ##
        <Proxy balancer://tomcat_cluster>
                BalancerMember ajp://server1.com:8009
                BalancerMember ajp://server2.com:8009
                BalancerMember ajp://server3.com:8009
        </Proxy>

        <Directory /var/www>
                Options Indexes FollowSymLinks MultiViews
                AllowOverride None
                Order allow,deny
                allow from all
                AddDefaultCharset euc-kr
                php_value default_charset euc-kr

                ## jsp 파일도 index 파일로 추가
                ##
                DirectoryIndex index.jsp

                ## Rewrite를 이용해서 jsp 파일을 proxy_ajp로 Tomcat으로 넘기기
                ##
                RewriteEngine On
                RewriteCond %{REQUEST_FILENAME} .jsp
                RewriteRule (.*) balancer://tomcat_cluster/$1 [P]
        </Directory>

    ...... (생략)

</VirtualHost>

<IfModule mod_userdir.c>
        UserDir public_html
        UserDir disabled root

        <Directory /home/*/public_html>
                AllowOverride FileInfo AuthConfig Limit
                Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec

                ## 사용자 계정의 jsp를 Tomcat으로 넘겨줌
                ##
                RewriteEngine On
                RewriteCond %{REQUEST_FILENAME} .jsp
                RewriteRule (.*) ajp://localhost:8009%{REQUEST_URI} [P]
        </Directory>
</IfModule>

<!--
    Context configuration file for the Tomcat Web App Root
-->
<Context path="/" docBase="/var/www/"
   debug="0" privileged="true" allowLinking="true">
</Context>

    ...... (생략)

<Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"
       xmlValidation="false" xmlNamespaceAware="false">

           <Listener className="org.apache.catalina.startup.UserConfig"
           directoryName="public_html"
           userClass="org.apache.catalina.startup.PasswdUserDatabase"/>
</Host>

    ...... (생략)

아래에 나올 간단한 'hello_world.jsp' 예제에서는 WEB-INF나 web.xml 생성이 필요 없었으나,
실제 운영할 때는 필요할 것으로 보임.

<%@ page contentType="text/html; Charset=EUC-KR" %>
<%
out.println("Hello, World!!");
%>

/etc/init.d/apache2 restart
/etc/init.d/tomcat5.5 restart

Hello, World!!