tomcat安装及优化

tomcat中JDK安装
[root@wangchao ~]# cd /usr/local/src/
[root@wangchaosrc]#wget http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-linux-i586.tar.gz?AuthParam=1437564943_0e9e4215c41bb100c587fbae5f08d8cd [root@wangchaosrc]#mv jdk-8u51-linux-i586.tar.gz\?AuthParam\=1437564943_0e9e4215c41bb100c587fbae5f08d8cd jdk-8u51-linux-i586.tar.gz
[root@wangchao src]# tar zxvf jdk-8u51-linux-i586.tar.gz
[root@wangchao src]# ls
jdk1.8.0_51
[root@wangchao src]# mv jdk1.8.0_51/ /usr/local/
[root@wangchao src]# ls /usr/local/
jdk1.8.0_51
[root@wangchao src]# vim /etc/profile.d/java.sh
JAVA_HOME=/usr/local/jdk1.8.0_51
JAVA_BIN=/usr/local/jdk1.8.0_51/bin
JRE_HOME=/usr/local/jdk1.8.0_51/jre
PATH=$PATH:/usr/local/jdk1.8.0_51/bin:/usr/local/jdk1.8.0_51/jre/bin
CLASSPATH=/usr/local/jdk1.8.0_51/jre/lib:/usr/local/jdk1.8.0_51/lib:/usr/local/jdk1.8.0_51/jre/lib/charsets.jar

[root@wangchao src]# ls /usr/local/jdk1.8.0_51 //查看，确保这些路径存在
root@wangchao src]# ls /usr/local/jdk1.8.0_51/bin
[root@wangchao src]# ls /usr/local/jdk1.8.0_51/jre

[root@wangchao src]# source /etc/profile.d/java.sh
[root@wangchao src]# java -version //查看java版本，此版本为系统自安装的、
java version "1.7.0_65"

卸载
[root@wangchao src]# which java
/usr/bin/java
[root@wangchao src]# rpm -qf /usr/bin/java
file /usr/bin/java is not owned by any package
[root@wangchao src]# yum list |grep jdk
[root@wangchao src]# yum remove java-1.7.0-openjdk* java-1.6.0-openjdk*
[root@wangchao src]# java -version
-bash: /usr/bin/java: No such file or directory
//无任何版本信息了

[root@wangchao src]# source /etc/profile.d/java.sh
[root@wangchao src]# java -version
java version "1.8.0_51" //出现此版本信息，说明jdk已安装成功了
tomcat安装
[root@wangchaosrc]#wget http://apache.fayea.com/tomcat/tomcat-7/v7.0.63/bin/apache-tomcat-7.0.63.tar.gz [root@wangchao src]# ls
apache-tomcat-7.0.63.tar.gz
[root@wangchao src]# tar zxvf apache-tomcat-7.0.63.tar.gz
[root@wangchao src]# mv apache-tomcat-7.0.63 /usr/local/tomcat
[root@wangchao src]# ls /usr/local/tomcat/
[root@wangchao src]# cd /usr/local/tomcat/
[root@wangchao tomcat]# cp -v bin/catalina.sh /etc/init.d/tomcat
[root@wangchao tomcat]# chmod 755 /etc/init.d/tomcat
root@wangchao tomcat]# chkconfig --add tomcat
service tomcat does not support chkconfig //报错不支持

[root@wangchao tomcat]# vim /etc/init.d/tomcat //从第二行加入
# chkconfig: 2345 63 37
# description: tomcat server init script
# Source Function Library
. /etc/init.d/functions
JAVA_HOME=/usr/local/jdk1.8.0_51
CATALINA_HOME=/usr/local/tomcat

[root@wangchao tomcat]# chkconfig --add tomcat
[root@wangchao tomcat]# chkconfig tomcat on
[root@wangchao tomcat]# /etc/init.d/tomcat start

[root@wangchao tomcat]# ps aux |grep tomcat
root 2898 10.6 4.6 337584 48040 pts/0 Sl 04:19 0:03 /usr/local/jdk1.8.0_51/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/usr/local/tomcat/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

[root@wangchao tomcat]# netstat -lnp
tcp 0 0 ::ffff:127.0.0.1:8005 :::* LISTEN 2898/java
tcp 0 0 :::8009 :::* LISTEN 2898/java
tcp 0 0 :::8080 :::* LISTEN 2898/java

[root@wangchao tomcat]# /etc/init.d/tomcat stop //重启需先stop、再start
[root@wangchao tomcat]# /etc/init.d/tomcat start
[root@wangchao tomcat]# iptables -nvL

windows访问192.168.137.22:8080.出现tomcat默认页面



tomcat的优化

[root@wangchao tomcat]# cd /usr/local/tomcat/conf/
[root@wangchao conf]# ls
[root@wangchao conf]# vim server.xml
将<Connector port="8080" protocol="HTTP/1.1"中的8080改成80
//插入：
<Host name="www.123.com" appBase="/data/tomcatweb"
unpackWARs="false" autoDeploy="true" xmlValidation="false"
xmlNamespaceAware="false">
<Context path="" docBase="./" debug="0" reloadable="true" crossContext="true"/>
</Host>

[root@wangchao conf]# mkdir -p /data/tomcatweb
[root@wangchao conf]# /etc/init.d/tomcat stop
[root@wangchao conf]# /etc/init.d/tomcat start
[root@wangchao conf]# ps aux |grep java
root 3576 16.9 4.7 337456 48656 pts/0 Sl 04:36 0:03 /usr/local/jdk1.8.0_51/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/usr/local/tomcat/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start
[root@wangchao conf]# netstat -lnp
tcp 0 0 :::80 :::* LISTEN 3656/java

//监听端口变为80
客户端访问192.168.137.22无需再加8080



[root@wangchao conf]# touch /data/tomcatweb/1.txt
[root@wangchao conf]# cd /data/tomcatweb/
[root@wangchao tomcatweb]# vim 1.txt
11112
[root@wangchao tomcatweb]# curl -xlocalhost:80 www.123.com/1.txt
11112
//测试可访内容
[root@wangchao tomcatweb]# vim /data/tomcatweb/1.jsp
<html><body><center>
Now time is: <%=new java.util.Date()%>
</center></body></html>
[root@wangchao tomcatweb]# curl -xlocalhost:80 www.123.com/1.jsp
<html><body><center>
Now time is: Thu Jul 23 04:47:29 CST 2015
</center></body></html>
//正常解析其时间