Java EE Development Environment configuration under centos6.2 (1)-Java + Tomcat environment Configuration

Version description:

JDK: jdk1.7.0 _ 03

Package: jdk-7u3-linux-i586.rpm

Tomcat: APACHE-Tomcat-7.0.26

Package: apache-tomcat-7.0.26.tar.gz

Step 4 install JDK:

(The following steps require root permissions ($ su ...))

Copy the jdk-7u3-linux-i586.rpm to the/usr/Java/directory, of course, if there is no Java directory, first create a, (mkdir)

Under centos6.2, you can double-click to run the jdk-7u3-linux-i586.rpm and wait for the installation to complete. (Environment variables can be configured with Tomcat)

After the installation is completed, the following code is displayed:

Step 4 install Tomcat:

Download and unzip the package directly, and put it in the/usr/local/directory. My software:

Step 1 configure the environment variable (append the global shell environment variable to/etc/profile ):

After obtaining the root permission on the terminal, use the gedit editor that comes with centos6.2:

The command is as follows:

Append the content at the end of the file (if the version is different, it is a different directory name ):

export JAVA_HOME=/usr/java/jdk1.7.0_03export JRE_HOME=/usr/java/jdk1.7.0_03/jreexport CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport TOMCAT_HOME=/usr/local/tomcatexport CATALINA_HOME=/usr/local/tomcatexport PATH=$PATH:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:$JAVA_HOME/bin

Save it! Of course, if you do not have the root permission, the file is read-only!

Is the configuration effective:

# Source/etc/profile // make the current configuration take effect immediately

Step 2: Run Tomcat:

After obtaining the root permission, #/usr/local/tomcat/bin/startup. Sh is displayed, but the permission is insufficient,

Use # ls-L/usr/local/tomcat/bin/startup. sh really shows-RW-r ---, indicating that no one has the permission to modify it, and the root does not work, so it is not difficult to get the code;

#chmod a+x startup.sh

#chmod a+x catalina.sh

Run startup. Sh

Open your browser and enter localhost: 8080.

View the Tomcat login page in the browser:

Add tomcat to auto-start upon startup:

# echo "/usr/local/tomcat/bin/startup.sh" >>/etc/rc.local

Open Tomcat ports to the firewall

# iptables -F# iptables -t nat -I PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 8080# iptables -t nat -I OUTPUT -p tcp --dport 80 -j REDIRECT --to-ports 8080

Complete. You need to configure nginx and memcache for future tasks!