problem in Configure Apache to use mod_jk

I simply copy "ant" and "tomcat" into /usr/local/ then add this lines to /etc/profile:

export JAVA_HOME=/usr/java/latest
export JRE_HOME=/usr/java/latest/jre
export ANT_HOME=/usr/local/ant
export CATALINA_HOME=/usr/local/tomcat
export PATH=$JAVA_HOME/bin:$ANT_HOME/bin:$PATH

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#ant -version return:
Apache Ant(TM) version 1.8.2 compiled on December 20 2010

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Apache web server works well, http://localhost/ is ok

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in http://tomcat.apache.org/tomcat-3.3-doc/mod_jk-howto.html#s7 says that startup.sh with option jkconf will generate a file in:

开发者_StackOverflow中文版Include TOMCAT_HOME/conf/auto/mod_jk.conf

but its not there

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I run this command:

[root@localhost tomcat]# sh startup.sh -jkconf

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I got it. I cant understand why, but after reboot everything works great