安装配置jdk和tomcat

1,首先，暂停iptables服务

[root@localhost ~]# service iptables stop
[root@localhost ~]# chkconfig iptables off

2,jdk卸载 （1）查找jdk安装信息

[root@iZ23s6vhhjjZ apache-tomcat-7.0.63]# rpm -qa|grep gcj
libgcj-4.4.7-4.el6.x86_64
java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64
[root@iZ23s6vhhjjZ apache-tomcat-7.0.63]#rpm -e java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64
[root@iZ23s6vhhjjZ apache-tomcat-7.0.63]#rpm -e libgcj-4.4.7-4.el6.x86_64

（2）卸载

[root@iZ23s6vhhjjZ apache-tomcat-7.0.63]# rpm -qa|grep jdk
jdk-1.7.0_79-fcs.x86_64
[root@iZ23s6vhhjjZ apache-tomcat-7.0.63]#rpm -e  --nodeps jdk-1.7.0_79-fcs.x86_64

3,jdk的安装和配置：

（1），安装jdk命令: rpm -ivh jdk-8u51-linux-x64.rpm

[root@localhost install]# ll
total 481168
-rw-r--r--. 1 root root   8850470 Nov  2 22:43 apache-tomcat-7.0.63.tar.gz
-rw-r--r--. 1 root root 137808216 Jan 13 15:09 jdk-8u51-linux-x64.rpm
-rw-r--r--. 1 root root  33203321 Nov 20 11:31 mysql-5.6.25.tar.gz
-rw-r--r--. 1 root root 312845162 Nov 13 15:19 mysql-5.6.27-linux-glibc2.5-x86_64.tar.gz
[root@localhost install]# rpm -ivh jdk-8u51-linux-x64.rpm
Preparing...                ########################################### [100%]
1:jdk1.8.0_51            ########################################### [100%]
Unpacking JAR files...
rt.jar...
jsse.jar...
charsets.jar...
tools.jar...
localedata.jar...
jfxrt.jar...
plugin.jar...
javaws.jar...
deploy.jar...

（2)配置环境变量：

[root@localhost install]# vi /etc/profile
# /etc/profile
# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc
# It's NOT a good idea to change this file unless you know what you
# are doing. It's much better to create a custom.sh shell script in
# /etc/profile.d/ to make custom changes to your environment, as this
# will prevent the need for merging in future updates.
pathmunge () {
case ":${PATH}:" in
*:"$1":*)
;;
*)
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
esac
}
"/etc/profile" 78L, 1796C
# By default, we want umask to get set. This sets it for login shell
# Current threshold for system reserved uid/gids is 200
# You could check uidgid reservation validity in
# /usr/share/doc/setup-*/uidgid file
if [ $UID -gt 199 ] && [ "`id -gn`" = "`id -un`" ]; then
umask 002
else
umask 022
fi
for i in /etc/profile.d/*.sh ; do
if [ -r "$i" ]; then
if [ "${-#*i}" != "$-" ]; then
. "$i"
else
. "$i" >/dev/null 2>&1
fi
fi
done
unset i
unset -f pathmunge

export JAVA_HOME=/usr/java/jdk1.8.0_51
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=$JAVA_HOME/lib:.:$CLASSPATH

(3) 配置的环境变量生效：source /etc/profile

[root@localhost install]# source /etc/profile

（4)测试：

查看java版本号：java -version

[root@localhost install]# java -version
java version "1.8.0_51"
Java(TM) SE Runtime Environment (build 1.8.0_51-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.51-b03, mixed mode)

查看javac版本号命令：javac -version

[root@localhost install]# javac -version
javac 1.8.0_51

4,tomcat安装配置
（1）,创建组和用户tomcat

[root@localhost install]# groupadd tomcat
[root@localhost install]# useradd -g tomcat tomcat
[root@localhost install]# passwd tomcat
Changing password for user tomcat.
New password:
BAD PASSWORD: it is too simplistic/systematic
BAD PASSWORD: is too simple
Retype new password:
passwd: all authentication tokens updated successfully.
[root@localhost install]#

（2）切换用户并创建tomcat用户的目录：

[root@localhost install]# su tomcat
[tomcat@localhost install]$ mkdir /home/tomcat/server
[tomcat@localhost install]$

（3）解压tomcat压缩包并放到指定的目录里

[tomcat@localhost install]$ tar zxvf apache-tomcat-7.0.63.tar.gz -C /home/tomcat/server/
apache-tomcat-7.0.63/webapps/examples/jsp/xml/xml.jsp.html
apache-tomcat-7.0.63/webapps/examples/servlets/chat/index.jsp
apache-tomcat-7.0.63/webapps/examples/servlets/chat/index.jsp.html
apache-tomcat-7.0.63/webapps/examples/servlets/chat/login.jsp
apache-tomcat-7.0.63/webapps/examples/servlets/chat/login.jsp.html
apache-tomcat-7.0.63/webapps/examples/servlets/chat/post.jsp
apache-tomcat-7.0.63/webapps/examples/servlets/chat/post.jsp.html
apache-tomcat-7.0.63/webapps/examples/servlets/cookies.html
apache-tomcat-7.0.63/webapps/examples/servlets/helloworld.html
apache-tomcat-7.0.63/webapps/examples/servlets/images/code.gif
apache-tomcat-7.0.63/webapps/examples/servlets/images/execute.gif
apache-tomcat-7.0.63/webapps/examples/servlets/images/return.gif
apache-tomcat-7.0.63/webapps/examples/servlets/index.html
apache-tomcat-7.0.63/webapps/examples/servlets/reqheaders.html
apache-tomcat-7.0.63/webapps/examples/servlets/reqinfo.html
apache-tomcat-7.0.63/webapps/examples/servlets/reqparams.html
apache-tomcat-7.0.63/webapps/examples/servlets/sessions.html
apache-tomcat-7.0.63/webapps/examples/websocket-deprecated/chat.html
apache-tomcat-7.0.63/webapps/examples/websocket-deprecated/echo.html
apache-tomcat-7.0.63/webapps/examples/websocket-deprecated/index.html
apache-tomcat-7.0.63/webapps/examples/websocket-deprecated/snake.html
apache-tomcat-7.0.63/webapps/examples/websocket/chat.xhtml
apache-tomcat-7.0.63/webapps/examples/websocket/drawboard.xhtml
apache-tomcat-7.0.63/webapps/examples/websocket/echo.xhtml
apache-tomcat-7.0.63/webapps/examples/websocket/index.xhtml
apache-tomcat-7.0.63/webapps/examples/websocket/snake.xhtml
apache-tomcat-7.0.63/webapps/host-manager/META-INF/context.xml
apache-tomcat-7.0.63/webapps/host-manager/WEB-INF/jsp/401.jsp
apache-tomcat-7.0.63/webapps/host-manager/WEB-INF/jsp/403.jsp
apache-tomcat-7.0.63/webapps/host-manager/WEB-INF/jsp/404.jsp
apache-tomcat-7.0.63/webapps/host-manager/WEB-INF/web.xml
apache-tomcat-7.0.63/webapps/host-manager/images/add.gif
apache-tomcat-7.0.63/webapps/host-manager/images/asf-logo.gif
apache-tomcat-7.0.63/webapps/host-manager/images/code.gif
apache-tomcat-7.0.63/webapps/host-manager/images/design.gif
apache-tomcat-7.0.63/webapps/host-manager/images/docs.gif
apache-tomcat-7.0.63/webapps/host-manager/images/fix.gif
apache-tomcat-7.0.63/webapps/host-manager/images/tomcat.gif
apache-tomcat-7.0.63/webapps/host-manager/images/update.gif
apache-tomcat-7.0.63/webapps/host-manager/images/void.gif
apache-tomcat-7.0.63/webapps/host-manager/index.jsp
apache-tomcat-7.0.63/webapps/host-manager/manager.xml
apache-tomcat-7.0.63/webapps/manager/META-INF/context.xml
apache-tomcat-7.0.63/webapps/manager/WEB-INF/jsp/401.jsp
apache-tomcat-7.0.63/webapps/manager/WEB-INF/jsp/403.jsp
apache-tomcat-7.0.63/webapps/manager/WEB-INF/jsp/404.jsp
apache-tomcat-7.0.63/webapps/manager/WEB-INF/jsp/sessionDetail.jsp
apache-tomcat-7.0.63/webapps/manager/WEB-INF/jsp/sessionsList.jsp
apache-tomcat-7.0.63/webapps/manager/WEB-INF/web.xml
apache-tomcat-7.0.63/webapps/manager/images/add.gif
apache-tomcat-7.0.63/webapps/manager/images/asf-logo.gif
apache-tomcat-7.0.63/webapps/manager/images/code.gif
apache-tomcat-7.0.63/webapps/manager/images/design.gif
apache-tomcat-7.0.63/webapps/manager/images/docs.gif
apache-tomcat-7.0.63/webapps/manager/images/fix.gif
apache-tomcat-7.0.63/webapps/manager/images/tomcat.gif
apache-tomcat-7.0.63/webapps/manager/images/update.gif
apache-tomcat-7.0.63/webapps/manager/images/void.gif
apache-tomcat-7.0.63/webapps/manager/index.jsp
apache-tomcat-7.0.63/webapps/manager/status.xsd
apache-tomcat-7.0.63/webapps/manager/xform.xsl

(4)切换目录并配置文件：

[tomcat@localhost install]$ cd /home/tomcat/server/apache-tomcat-7.0.63/conf/
[tomcat@localhost conf]$ cp server.xml server.xml.bak
[tomcat@localhost conf]$ vi server.xml

(5）启动关闭测试

[tomcat@localhost bin]$ /home/tomcat/server/tomcat/bin/startup.sh
Using CATALINA_BASE:   /home/tomcat/server/apache-tomcat-7.0.63
Using CATALINA_HOME:   /home/tomcat/server/apache-tomcat-7.0.63
Using CATALINA_TMPDIR: /home/tomcat/server/apache-tomcat-7.0.63/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /home/tomcat/server/apache-tomcat-7.0.63/bin/bootstrap.jar:/home/tomcat/server/apache-tomcat-7.0.63/bin/tomcat-juli.jar
Tomcat started.
[tomcat@localhost bin]$ ps -ef|grep tomca
root      1535  1102  0 15:24 pts/0    00:00:00 su tomcat
tomcat    1536  1535  0 15:24 pts/0    00:00:00 bash
tomcat    1568     1 30 15:31 pts/0    00:00:02 /usr/bin/java -Djava.util.logging.config.file=/home/tomcat/server/apache-tomcat-7.0.63/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/home/tomcat/server/apache-tomcat-7.0.63/endorsed -classpath /home/tomcat/server/apache-tomcat-7.0.63/bin/bootstrap.jar:/home/tomcat/server/apache-tomcat-7.0.63/bin/tomcat-juli.jar -Dcatalina.base=/home/tomcat/server/apache-tomcat-7.0.63 -Dcatalina.home=/home/tomcat/server/apache-tomcat-7.0.63 -Djava.io.tmpdir=/home/tomcat/server/apache-tomcat-7.0.63/temp org.apache.catalina.startup.Bootstrap start
tomcat    1586  1536  4 15:31 pts/0    00:00:00 ps -ef
tomcat    1587  1536  0 15:31 pts/0    00:00:00 grep tomca
[tomcat@localhost bin]$ netstat -lntp |grep 8080
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp        0      0 :::8080                     :::*                        LISTEN      1568/java